Commit Graph
100 Commits
Author SHA1 Message Date
Stephen Boyd 5a60b5aa96 Merge tag 'clk-v5.4-samsung-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-fixes
Pull Samsung clk driver fixes from Sylwester Nawrocki:

 - system suspend related fixes for the exynos542x clocks driver
 - probe() error paths fixes in the exynos5433 CMU driver adding
   proper release of memory and clk resources

* tag 'clk-v5.4-samsung-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
  clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
  clk: samsung: exynos5433: Fix error paths
2019-11-04 09:59:33 -08:00
Stephen Boyd 78bdf57e99 Merge tag 'sunxi-clk-fixes-for-5.4-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes
Two patches that fix some operator precedence and zeroing of bits

* tag 'sunxi-clk-fixes-for-5.4-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
  clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
2019-11-04 09:57:48 -08:00
Stephen Boyd 3d883e8969 Merge tag 'clk-meson-fixes-v5.4-1' of https://github.com/BayLibre/clk-meson into clk-fixes
Pull first round of amlogic clock fixes from Jerome Brunet:

 - This fixes the clock rate propagation for the g12a cpu and gxbb adc clocks.

* tag 'clk-meson-fixes-v5.4-1' of https://github.com/BayLibre/clk-meson:
  clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
  clk: meson: g12a: fix cpu clock rate setting
  clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
2019-10-16 14:01:19 -07:00
Stephen Boyd ebd47c8434 Merge branches 'clk-bulk-fix', 'clk-at91' and 'clk-sprd' into clk-next
- Make clk_bulk_get_all() return an 'id' corresponding to clock-names

* clk-bulk-fix:
  clk: Make clk_bulk_get_all() return a valid "id"

* clk-at91:
  clk: at91: allow 24 Mhz clock as input for PLL
  clk: at91: select parent if main oscillator or bypass is enabled
  clk: at91: fix update bit maps on CFG_MOR write

* clk-sprd:
  clk: sprd: add missing kfree
2019-09-19 15:31:59 -07:00
Stephen Boyd b6c444de05 Merge branches 'clk-cdce-regulator', 'clk-bcm', 'clk-evict-parent-cache' and 'clk-actions' into clk-next
- Add regulator support to the cdce925 clk driver
 - Add support for Raspberry Pi 4 bcm2711 SoCs
 - Evict parents from parent cache when they're unregistered

* clk-cdce-regulator:
  clk: clk-cdce925: Add regulator support
  dt-bindings: clock: cdce925: Add regulator documentation

* clk-bcm:
  clk: bcm2835: Mark PLLD_PER as CRITICAL
  clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support
  clk: bcm2835: Introduce SoC specific clock registration
  dt-bindings: bcm2835-cprman: Add bcm2711 support

* clk-evict-parent-cache:
  clk: Evict unregistered clks from parent caches

* clk-actions:
  clk: actions: Fix factor clk struct member access
2019-09-19 15:31:46 -07:00
Stephen Boyd 91bcbc11d6 Merge branches 'clk-renesas', 'clk-rockchip', 'clk-const' and 'clk-simplify' into clk-next
* clk-renesas:
  clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain
  clk: renesas: r9a06g032: Set GENPD_FLAG_ALWAYS_ON for clock domain
  clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain
  dt-bindings: clk: emev2: Rename bindings documentation file
  clk: renesas: rcar-usb2-clock-sel: Use devm_platform_ioremap_resource() helper

* clk-rockchip:
  clk: rockchip: Add clock controller for the rk3308
  clk: rockchip: Add dt-binding header for rk3308
  dt-bindings: Add bindings for rk3308 clock controller
  clk: rockchip: Fix -Wunused-const-variable in rv1108 clk driver

* clk-const:
  clk: spear: Make structure i2s_sclk_masks constant

* clk-simplify:
  clk/ti: Use kmemdup rather than duplicating its implementation
  clk: fix devm_platform_ioremap_resource.cocci warnings
2019-09-19 15:31:41 -07:00
Stephen Boyd a1ff1ce300 Merge branches 'clk-init-destroy', 'clk-doc', 'clk-imx' and 'clk-allwinner' into clk-next
- Set clk_init_data pointer inside clk_hw to NULL after registration

* clk-init-destroy:
  clk: Overwrite clk_hw::init with NULL during clk_register()
  clk: sunxi: Don't call clk_hw_get_name() on a hw that isn't registered
  clk: ti: Don't reference clk_init_data after registration
  clk: qcom: Remove error prints from DFS registration
  rtc: sun6i: Don't reference clk_init_data after registration
  clk: zx296718: Don't reference clk_init_data after registration
  clk: milbeaut: Don't reference clk_init_data after registration
  clk: socfpga: deindent code to proper indentation
  phy: ti: am654-serdes: Don't reference clk_init_data after registration
  clk: sprd: Don't reference clk_init_data after registration
  clk: socfpga: Don't reference clk_init_data after registration
  clk: sirf: Don't reference clk_init_data after registration
  clk: qcom: Don't reference clk_init_data after registration
  clk: meson: axg-audio: Don't reference clk_init_data after registration
  clk: lochnagar: Don't reference clk_init_data after registration
  clk: actions: Don't reference clk_init_data after registration

* clk-doc:
  clk: remove extra ---help--- tags in Kconfig
  clk: add include guard to clk-conf.h
  clk: Document of_parse_clkspec() some more
  clk: Remove extraneous 'for' word in comments

* clk-imx: (32 commits)
  clk: imx: imx8mn: fix pll mux bit
  clk: imx: imx8mm: fix pll mux bit
  clk: imx: clk-pll14xx: unbypass PLL by default
  clk: imx: pll14xx: avoid glitch when set rate
  clk: imx: imx8mn: fix audio pll setting
  clk: imx8mn: Add necessary frequency support for ARM PLL table
  clk: imx8mn: Add missing rate_count assignment for each PLL structure
  clk: imx8mn: fix int pll clk gate
  clk: imx8mn: Add GIC clock
  clk: imx8mn: Fix incorrect parents
  clk: imx8mm: Fix incorrect parents
  clk: imx8mq: Fix sys3 pll references
  clk: imx8mq: Unregister clks when of_clk_add_provider failed
  clk: imx8mm: Unregister clks when of_clk_add_provider failed
  clk: imx8mq: Mark AHB clock as critical
  clk: imx8mn: Keep uart clocks on for early console
  clk: imx: Remove unused function statement
  clk: imx7ulp: Make sure earlycon's clock is enabled
  clk: imx8mm: Switch to platform driver
  clk: imx: imx8mm: fix audio pll setting
  ...

* clk-allwinner:
  clk: sunxi-ng: h6: Allow I2S to change parent rate
  clk: sunxi-ng: v3s: add Allwinner V3 support
  clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks
  dt-bindings: clk: sunxi-ccu: add compatible string for V3 CCU
  clk: sunxi-ng: v3s: add the missing PLL_DDR1
2019-09-19 15:31:27 -07:00
Stephen Boyd f5c7305db3 Merge branches 'clk-qcom', 'clk-mtk', 'clk-armada', 'clk-ingenic' and 'clk-meson' into clk-next
- Support qcom SM8150 RPMh clks
 - Set floor ops for qcom sd clks
 - Support qcom QCS404 WCSS clks
 - Support for Mediatek MT6779 SoCs
 - Add CPU clock support for Armada 7K/8K (specifically AP806 and AP807)

* clk-qcom:
  clk: qcom: rcg: Return failure for RCG update
  clk: qcom: fix QCS404 TuringCC regmap
  clk: qcom: clk-rpmh: Add support for SM8150
  dt-bindings: clock: Document SM8150 rpmh-clock compatible
  clk: qcom: clk-rpmh: Convert to parent data scheme
  dt-bindings: clock: Document the parent clocks
  clk: qcom: gcc: Use floor ops for SDCC clocks
  clk: qcom: gcc-qcs404: Use floor ops for sdcc clks
  clk: qcom: gcc-sdm845: Use floor ops for sdcc clks
  clk: qcom: define probe by index API as common API
  clk: qcom: Add WCSS gcc clock control for QCS404
  clk: qcom: msm8916: Don't build by default
  clk: qcom: gcc: Add global clock controller driver for SM8150
  dt-bindings: clock: Document gcc bindings for SM8150
  clk: qcom: clk-alpha-pll: Add support for Trion PLLs
  clk: qcom: clk-alpha-pll: Remove post_div_table checks
  clk: qcom: clk-alpha-pll: Remove unnecessary cast

* clk-mtk:
  clk: mediatek: Runtime PM support for MT8183 mcucfg clock provider
  clk: mediatek: Register clock gate with device
  clk: mediatek: add pericfg clocks for MT8183
  dt-bindings: clock: mediatek: add pericfg for MT8183
  clk: mediatek: Add MT6779 clock support
  clk: mediatek: Add dt-bindings for MT6779 clocks
  dt-bindings: mediatek: bindings for MT6779 clk
  clk: reset: Modify reset-controller driver

* clk-armada:
  clk: mvebu: ap80x: add AP807 clock support
  clk: mvebu: ap806: Prepare the introduction of AP807 clock support
  clk: mvebu: ap806: add AP-DCLK (hclk) to system controller driver
  clk: mvebu: ap806: be more explicit on what SaR is
  clk: mvebu: ap80x-cpu: add AP807 CPU clock support
  clk: mvebu: ap806-cpu: prepare mapping of AP807 CPU clock
  dt-bindings: ap806: Document AP807 clock compatible
  dt-bindings: ap80x: Document AP807 CPU clock compatible
  clk: mvebu: ap806: Fix clock name for the cluster
  clk: mvebu: add CPU clock driver for Armada 7K/8K
  clk: mvebu: add helper file for Armada AP and CP clocks
  dt-bindings: ap806: add the cluster clock node in the syscon file

* clk-ingenic:
  clk: ingenic: Use CLK_OF_DECLARE_DRIVER macro
  clk: ingenic/jz4740: Fix "pll half" divider not read/written properly

* clk-meson: (23 commits)
  clk: meson: g12a: add support for SM1 CPU 1, 2 & 3 clocks
  clk: meson: g12a: add support for SM1 DynamIQ Shared Unit clock
  clk: meson: g12a: add support for SM1 GP1 PLL
  dt-bindings: clk: meson: add sm1 periph clock controller bindings
  clk: meson: axg-audio: add g12a reset support
  dt-bindings: clock: meson: add resets to the audio clock controller
  clk: meson: g12a: expose CPUB clock ID for G12B
  clk: meson: g12a: add notifiers to handle cpu clock change
  clk: meson: add g12a cpu dynamic divider driver
  clk: core: introduce clk_hw_set_parent()
  clk: meson: remove clk input helper
  clk: meson: remove ee input bypass clocks
  clk: meson: clk-regmap: migrate to new parent description method
  clk: meson: meson8b: migrate to the new parent description method
  clk: meson: axg: migrate to the new parent description method
  clk: meson: gxbb: migrate to the new parent description method
  clk: meson: g12a: migrate to the new parent description method
  clk: meson: remove ao input bypass clocks
  clk: meson: axg-aoclk: migrate to the new parent description method
  clk: meson: gxbb-aoclk: migrate to the new parent description method
  ...
2019-09-19 15:30:59 -07:00
Stephen Boyd cee99529ee Merge branches 'clk-aspeed', 'clk-unused', 'clk-of-node-put', 'clk-const-bulk-data' and 'clk-debugfs' into clk-next
- Add SDIO gate to aspeed driver
 - Support aspeed AST2600 SoC
 - Add missing of_node_put() calls in various clk drivers
 - Drop NULL checks in clk debugfs
 - Add min/max rates to clk debugfs

* clk-aspeed:
  clk: Add support for AST2600 SoC
  clk: aspeed: Move structures to header
  clk: aspeed: Add SDIO gate

* clk-unused:
  clk: st: clkgen-pll: remove unused variable 'st_pll3200c32_407_a0'
  clk: st: clkgen-fsyn: remove unused variable 'st_quadfs_fs660c32_ops'
  clk: composite: Drop unused clk.h include
  clk: Si5341/Si5340: remove redundant assignment to n_den
  clk: qoriq: Fix -Wunused-const-variable

* clk-of-node-put:
  clk: ti: dm814x: Add of_node_put() to prevent memory leak
  clk: st: clk-flexgen: Add of_node_put() in st_of_flexgen_setup()
  clk: davinci: pll: Add of_node_put() in of_davinci_pll_init()
  clk: versatile: Add of_node_put() in cm_osc_setup()

* clk-const-bulk-data:
  clk: Constify struct clk_bulk_data * where possible

* clk-debugfs:
  clk: Drop !clk checks in debugfs dumping
  clk: Use seq_puts() in possible_parent_show()
  clk: Assert prepare_lock in clk_core_get_boundaries
  clk: Add clk_min/max_rate entries in debugfs
2019-09-19 15:30:40 -07:00
Stephen Boyd 7f4804665b clk: Drop !clk checks in debugfs dumping
These recursive functions have checks for !clk being passed in, but the
callers are always looping through lists and therefore the pointers
can't be NULL. Drop the checks to simplify the code.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190826234729.145593-1-sboyd@kernel.org
2019-09-19 15:26:36 -07:00
Stephen Boyd bdcf1dc253 clk: Evict unregistered clks from parent caches
We leave a dangling pointer in each clk_core::parents array that has an
unregistered clk as a potential parent when that clk_core pointer is
freed by clk{_hw}_unregister(). It is impossible for the true parent of
a clk to be set with clk_set_parent() once the dangling pointer is left
in the cache because we compare parent pointers in
clk_fetch_parent_index() instead of checking for a matching clk name or
clk_hw pointer.

Before commit ede7785847 ("clk: Remove global clk traversal on fetch
parent index"), we would check clk_hw pointers, which has a higher
chance of being the same between registration and unregistration, but it
can still be allocated and freed by the clk provider. In fact, this has
been a long standing problem since commit da0f0b2c3a ("clk: Correct
lookup logic in clk_fetch_parent_index()") where we stopped trying to
compare clk names and skipped over entries in the cache that weren't
NULL.

There are good (performance) reasons to not do the global tree lookup in
cases where the cache holds dangling pointers to parents that have been
unregistered. Let's take the performance hit on the uncommon
registration path instead. Loop through all the clk_core::parents arrays
when a clk is unregistered and set the entry to NULL when the parent
cache entry and clk being unregistered are the same pointer. This will
fix this problem and avoid the overhead for the "normal" case.

Based on a patch by Bjorn Andersson.

Fixes: da0f0b2c3a ("clk: Correct lookup logic in clk_fetch_parent_index()")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190828181959.204401-1-sboyd@kernel.org
2019-09-17 10:24:02 -07:00
Stephen Boyd 226fd70209 clk: Document of_parse_clkspec() some more
The return value of of_parse_clkspec() is peculiar. If the function is
called with a NULL argument for 'name' it will return -ENOENT, but if
it's called with a non-NULL argument for 'name' it will return -EINVAL.
This peculiarity is documented by commit 5c56dfe63b ("clk: Add comment
about __of_clk_get_by_name() error values").

Let's further document this function so that it's clear what the return
value is and how to use the arguments to parse clk specifiers.

Cc: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190826212042.48642-1-sboyd@kernel.org
Reviewed-by: Phil Edworthy <phil.edworthy@renesas.com>
2019-09-05 11:51:31 -07:00
Stephen Boyd af8fc26f66 Merge tag 'v5.4-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner:

 - Removal of an unused variable vom rv1108
 - Addition of clock driver for rk3308 arm64 soc

* tag 'v5.4-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: Add clock controller for the rk3308
  clk: rockchip: Add dt-binding header for rk3308
  dt-bindings: Add bindings for rk3308 clock controller
  clk: rockchip: Fix -Wunused-const-variable in rv1108 clk driver
2019-09-05 11:40:11 -07:00
Stephen Boyd 339bc7c020 Merge tag 'clk-renesas-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Fix "always-on" Clock Domains on R-Car M1A, RZ/A1, RZ/A2, and RZ/N1

* tag 'clk-renesas-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain
  clk: renesas: r9a06g032: Set GENPD_FLAG_ALWAYS_ON for clock domain
  clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain
  dt-bindings: clk: emev2: Rename bindings documentation file
  clk: renesas: rcar-usb2-clock-sel: Use devm_platform_ioremap_resource() helper
2019-09-04 11:21:19 -07:00
Stephen Boyd 924a8c6eda Merge tag 'sunxi-clk-for-5.4-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner
Pull Allwinner clock changes from Maxime Ripard:

A few patches to enable the V3 SoC and fix the i2s clock for the H6.

* tag 'sunxi-clk-for-5.4-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: h6: Allow I2S to change parent rate
  clk: sunxi-ng: v3s: add Allwinner V3 support
  clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks
  dt-bindings: clk: sunxi-ccu: add compatible string for V3 CCU
  clk: sunxi-ng: v3s: add the missing PLL_DDR1
2019-09-04 11:14:51 -07:00
Stephen Boyd 9ea67d14a8 Merge tag 'clk-imx-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx
Pull i.MX clock changes from Shawn Guo:

 - Add clock driver for i.MX8MN SoC
 - Switch i.MX8MM clock driver to platform driver
 - Add API for clk unregister when driver probe fail
 - Add Hifi4 DSP related clocks for i.MX8QXP SoC
 - Fix Audio PLL setting and parent clock for USB
 - Misc i.MX8 clock driver improvements and corrections

* tag 'clk-imx-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (28 commits)
  clk: imx: imx8mn: fix audio pll setting
  clk: imx8mn: Add necessary frequency support for ARM PLL table
  clk: imx8mn: Add missing rate_count assignment for each PLL structure
  clk: imx8mn: fix int pll clk gate
  clk: imx8mn: Add GIC clock
  clk: imx8mn: Fix incorrect parents
  clk: imx8mm: Fix incorrect parents
  clk: imx8mq: Fix sys3 pll references
  clk: imx8mq: Unregister clks when of_clk_add_provider failed
  clk: imx8mm: Unregister clks when of_clk_add_provider failed
  clk: imx8mq: Mark AHB clock as critical
  clk: imx8mn: Keep uart clocks on for early console
  clk: imx: Remove unused function statement
  clk: imx7ulp: Make sure earlycon's clock is enabled
  clk: imx8mm: Switch to platform driver
  clk: imx: imx8mm: fix audio pll setting
  clk: imx8mm: GPT1 clock mux option #5 should be sys_pll1_80m
  clk: imx8mm: Fix typo of pwm3 clock's mux option #4
  clk: imx: Remove unused clk based API
  clk: imx8mq: set correct parent for usb ctrl clocks
  ...
2019-09-04 11:00:15 -07:00
Stephen Boyd 5a85a64257 Merge tag 'clk-meson-v5.4-2' of https://github.com/BayLibre/clk-meson into clk-meson
Pull second set of Amlogic clk driver updates from Jerome Brunet:

 - Add g12a reset support to the axg audio clock controller
 - Add sm1 support to the g12a clock controller

* tag 'clk-meson-v5.4-2' of https://github.com/BayLibre/clk-meson:
  clk: meson: g12a: add support for SM1 CPU 1, 2 & 3 clocks
  clk: meson: g12a: add support for SM1 DynamIQ Shared Unit clock
  clk: meson: g12a: add support for SM1 GP1 PLL
  dt-bindings: clk: meson: add sm1 periph clock controller bindings
  clk: meson: axg-audio: add g12a reset support
  dt-bindings: clock: meson: add resets to the audio clock controller
2019-09-04 10:53:34 -07:00
Stephen Boyd b0740d71cb clk: composite: Drop unused clk.h include
This include isn't used. Drop it.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815042500.9519-1-sboyd@kernel.org
2019-08-16 10:37:01 -07:00
Stephen Boyd 4f8c6aba37 clk: Fix falling back to legacy parent string matching
Calls to clk_core_get() will return ERR_PTR(-EINVAL) if we've started
migrating a clk driver to use the DT based style of specifying parents
but we haven't made any DT updates yet. This happens when we pass a
non-NULL value as the 'name' argument of of_parse_clkspec(). That
function returns -EINVAL in such a situation, instead of -ENOENT like we
expected. The return value comes back up to clk_core_fill_parent_index()
which proceeds to skip calling clk_core_lookup() because the error
pointer isn't equal to -ENOENT, it's -EINVAL.

Furthermore, we blindly overwrite the error pointer returned by
clk_core_get() with NULL when there isn't a legacy .name member
specified in the parent map. This isn't too bad right now because we
don't really care to differentiate NULL from an error, but in the future
we should only try to do a legacy lookup if we know we might find
something. This way DT lookups that fail don't try to lookup based on
strings when there isn't any string to match, hiding the error from DT
parsing.

Fix both these problems so that clk provider drivers can use the new
style of parent mapping without having to also update their DT at the
same time. This patch is based on an earlier patch from Taniya Das which
checked for -EINVAL in addition to -ENOENT return values from
clk_core_get().

Fixes: 601b6e9330 ("clk: Allow parents to be specified via clkspec index")
Cc: Taniya Das <tdas@codeaurora.org>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Reported-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190813214147.34394-1-sboyd@kernel.org
Tested-by: Taniya Das <tdas@codeaurora.org>
2019-08-16 10:28:28 -07:00
Stephen Boyd 0214f33c4e clk: Overwrite clk_hw::init with NULL during clk_register()
We don't want clk provider drivers to use the init structure after clk
registration time, but we leave a dangling reference to it by means of
clk_hw::init. Let's overwrite the member with NULL during clk_register()
so that this can't be used anymore after registration time.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-10-sboyd@kernel.org
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2019-08-16 10:27:29 -07:00
Stephen Boyd a7b85ad25a clk: sunxi: Don't call clk_hw_get_name() on a hw that isn't registered
The implementation of clk_hw_get_name() relies on the clk_core
associated with the clk_hw pointer existing. If of_clk_hw_register()
fails, there isn't a clk_core created yet, so calling clk_hw_get_name()
here fails. Extract the name first so we can print it later.

Fixes: 1d80c14248 ("clk: sunxi-ng: Add common infrastructure")
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-08-16 10:27:29 -07:00
Stephen Boyd e0e04fc866 clk: ti: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815221249.53235-1-sboyd@kernel.org
2019-08-16 10:22:46 -07:00
Stephen Boyd c42144139a clk: qcom: Remove error prints from DFS registration
These aren't useful and they reference the init structure name. Let's
just drop them.

Cc: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815160020.183334-5-sboyd@kernel.org
Acked-by: Taniya Das <tdas@codeaurora.org>
2019-08-16 10:21:50 -07:00
Stephen Boyd 21ef77de22 rtc: sun6i: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815160020.183334-4-sboyd@kernel.org
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-16 10:21:07 -07:00
Stephen Boyd 1a4549c150 clk: zx296718: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815160020.183334-3-sboyd@kernel.org
2019-08-16 10:20:15 -07:00
Stephen Boyd c8cec4f4af clk: milbeaut: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Sugaya Taichi <sugaya.taichi@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815160020.183334-2-sboyd@kernel.org
2019-08-16 10:20:15 -07:00
Stephen Boyd 1bc5557a3b clk: socfpga: deindent code to proper indentation
This code is indented oddly, causing checkpatch to complain. Indent it
properly.

Cc: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190814002402.18154-1-sboyd@kernel.org
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
2019-08-16 10:20:07 -07:00
Stephen Boyd bd0e79f1da phy: ti: am654-serdes: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Roger Quadros <rogerq@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-9-sboyd@kernel.org
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-08-16 10:20:07 -07:00
Stephen Boyd f6c90df8e7 clk: sprd: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Chunyan Zhang <zhang.chunyan@linaro.org>
Cc: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-8-sboyd@kernel.org
Acked-by: Baolin Wang <baolin.wang@linaro.org>
Acked-by: Chunyan Zhang <zhang.chunyan@linaro.org>
2019-08-16 10:20:07 -07:00
Stephen Boyd 09d4922d3c clk: socfpga: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-7-sboyd@kernel.org
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
2019-08-16 10:20:07 -07:00
Stephen Boyd af55dadfbc clk: sirf: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Guo Zeng <Guo.Zeng@csr.com>
Cc: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-6-sboyd@kernel.org
2019-08-16 10:20:07 -07:00
Stephen Boyd af884a5dfd clk: qcom: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Taniya Das <tdas@codeaurora.org>
Cc: Andy Gross <agross@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-5-sboyd@kernel.org
Acked-by: Taniya Das <tdas@codeaurora.org>
2019-08-16 10:20:07 -07:00
Stephen Boyd 1610dd79d0 clk: meson: axg-audio: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-4-sboyd@kernel.org
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
2019-08-16 10:20:07 -07:00
Stephen Boyd d6d251f9bb clk: lochnagar: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-3-sboyd@kernel.org
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
2019-08-16 10:20:07 -07:00
Stephen Boyd cf9ec1fc6d clk: actions: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-2-sboyd@kernel.org
[sboyd@kernel.org: Move name to after checking for error or NULL hw]
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2019-08-16 10:19:49 -07:00
Stephen Boyd 7c9dc000bd Merge tag 'clk-meson-v5.4-1' of https://github.com/BayLibre/clk-meson into clk-meson
Pull Amlogic clock changes from Jerome Brunet:

 - Migrate to new clock description method
 - Add DVFS support to g12

* tag 'clk-meson-v5.4-1' of https://github.com/BayLibre/clk-meson:
  clk: meson: g12a: expose CPUB clock ID for G12B
  clk: meson: g12a: add notifiers to handle cpu clock change
  clk: meson: add g12a cpu dynamic divider driver
  clk: core: introduce clk_hw_set_parent()
  clk: meson: remove clk input helper
  clk: meson: remove ee input bypass clocks
  clk: meson: clk-regmap: migrate to new parent description method
  clk: meson: meson8b: migrate to the new parent description method
  clk: meson: axg: migrate to the new parent description method
  clk: meson: gxbb: migrate to the new parent description method
  clk: meson: g12a: migrate to the new parent description method
  clk: meson: remove ao input bypass clocks
  clk: meson: axg-aoclk: migrate to the new parent description method
  clk: meson: gxbb-aoclk: migrate to the new parent description method
  clk: meson: g12a-aoclk: migrate to the new parent description method
  clk: meson: axg-audio: migrate to the new parent description method
  clk: meson: g12a: fix hifi typo in mali parent_names
2019-08-14 09:45:43 -07:00
Stephen Boyd 7aa8dd91da devicetree: Expose dtbs_check and dt_binding_check some more
It wasn't obvious that this was a command to run based on 'make help',
so add it to the top-level help for devicetree builds. Also, add an
example to the documentation to show that db_binding_check can be run
with DT_SCHEMA_FILES= to only check one schema file instead of all of
them.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: <linux-kbuild@vger.kernel.org>
Cc: <devicetree@vger.kernel.org>
Cc: <linux-doc@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
[robh: fix-up due to .md to .rst conversion]
Signed-off-by: Rob Herring <robh@kernel.org>
2019-08-13 16:30:08 -06:00
Stephen Boyd b1511f7a48 Merge branches 'clk-bcm63xx', 'clk-silabs', 'clk-lochnagar' and 'clk-rockchip' into clk-next
- Support gated clk controller on MIPS based BCM63XX SoCs
 - Small frequency support for SiLabs Si544 chips
 - Support SiLabs Si5341 and Si5340 chips

* clk-bcm63xx:
  clk: add BCM63XX gated clock controller driver
  devicetree: document the BCM63XX gated clock bindings

* clk-silabs:
  clk: Add Si5341/Si5340 driver
  dt-bindings: clock: Add silabs,si5341
  clk: clk-si544: Implement small frequency change support

* clk-lochnagar:
  clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
  clk: lochnagar: Use new parent_data approach to register clock parents

* clk-rockchip:
  clk: rockchip: export HDMIPHY clock on rk3228
  clk: rockchip: add watchdog pclk on rk3328
  clk: rockchip: add clock id for hdmi_phy special clock on rk3228
  clk: rockchip: add clock id for watchdog pclk on rk3328
  clk: rockchip: convert pclk_wdt boilerplat to new SGRF_GATE macro
  clk: rockchip: add a type from SGRF-controlled gate clocks
  clk: rockchip: Remove 48 MHz PLL rate from rk3288
  clk: rockchip: add 1.464GHz cpu-clock rate to rk3228
  clk: rockchip: Slightly more accurate math in rockchip_mmc_get_phase()
  clk: rockchip: Don't yell about bad mmc phases when getting
  clk: rockchip: Use clk_hw_get_rate() in MMC phase calculation
2019-07-12 11:11:51 -07:00
Stephen Boyd 47c9e0cef0 Merge branches 'clk-rpi-cpufreq', 'clk-tegra', 'clk-simplify-provider.h', 'clk-sprd' and 'clk-at91' into clk-next
- Support for CPU clks on Raspberry Pi devices
 - Slow clk support for AT91 SAM9X60 SoCs

* clk-rpi-cpufreq:
  clk: raspberrypi: register platform device for raspberrypi-cpufreq
  firmware: raspberrypi: register clk device
  clk: bcm283x: add driver interfacing with Raspberry Pi's firmware
  clk: bcm2835: remove pllb

* clk-tegra:
  clk: tegra: Do not enable PLL_RE_VCO on Tegra210
  clk: tegra: Warn if an enabled PLL is in IDDQ
  clk: tegra: Do not warn unnecessarily
  clk: tegra210: fix PLLU and PLLU_OUT1

* clk-simplify-provider.h:
  clk: consoldiate the __clk_get_hw() declarations
  clk: Unexport __clk_of_table
  clk: Remove ifdef for COMMON_CLK in clk-provider.h

* clk-sprd:
  clk: sprd: Add check for return value of sprd_clk_regmap_init()
  clk: sprd: Check error only for devm_regmap_init_mmio()
  clk: sprd: Switch from of_iomap() to devm_ioremap_resource()

* clk-at91:
  clk: at91: sckc: use dedicated functions to unregister clock
  clk: at91: sckc: improve error path for sama5d4 sck registration
  clk: at91: sckc: remove unnecessary line
  clk: at91: sckc: improve error path for sam9x5 sck register
  clk: at91: sckc: add support to free slow clock osclillator
  clk: at91: sckc: add support to free slow rc oscillator
  clk: at91: sckc: add support to free slow oscillator
  clk: at91: sckc: add support for SAM9X60
  dt-bindings: clk: at91: add bindings for SAM9X60's slow clock controller
  clk: at91: sckc: add support to specify registers bit offsets
  clk: at91: sckc: sama5d4 has no bypass support
2019-07-12 11:11:30 -07:00
Stephen Boyd a993be3724 Merge branches 'clk-debugfs', 'clk-unused', 'clk-refactor' and 'clk-qoriq' into clk-next
- Add a 'clk_parent' file in clk debugfs
 - Remove dead code in various clk drivers

* clk-debugfs:
  clk: Add clk_parent entry in debugfs

* clk-unused:
  clk: qcom: Fix -Wunused-const-variable
  clk: mmp: frac: Remove set but not used variable 'prev_rate'
  clk: ti: Remove unused functions
  clk: mediatek: mt8516: Remove unused variable

* clk-refactor:
  clk: clk-cdce706: simplify getting the adapter of a client
  clk: Simplify clk_core_can_round()

* clk-qoriq:
  clk: qoriq: add support for lx2160a
2019-07-12 11:11:16 -07:00
Stephen Boyd dfe1d3a283 Merge branches 'clk-bulk-optional', 'clk-kirkwood', 'clk-socfpga' and 'clk-docs' into clk-next
- Add a clk_bulk_get_optional() API (with devm too)
 - Support for Marvell 98DX1135 SoCs

* clk-bulk-optional:
  clk: Document some devm_clk_bulk*() APIs
  clk: Add devm_clk_bulk_get_optional() function
  clk: Add clk_bulk_get_optional() function

* clk-kirkwood:
  clk: kirkwood: Add support for MV98DX1135
  dt-bindings: clock: mvebu: Add compatible string for 98dx1135 core clock

* clk-socfpga:
  clk: socfpga: stratix10: fix divider entry for the emac clocks
  clk: socfpga: stratix10: add additional clocks needed for the NAND IP

* clk-docs:
  clk: Grammar missing "and", Spelling s/statisfied/satisfied/
2019-07-12 11:11:06 -07:00
Stephen Boyd e02cb1f593 Merge branches 'clk-ti', 'clk-samsung', 'clk-imx' and 'clk-allwinner' into clk-next
* clk-ti:
  clk: ti: Use int to check return value from of_property_count_elems_of_size()
  firmware: ti_sci: extend clock identifiers from u8 to u32
  clk: keystone: sci-clk: extend clock IDs to 32 bits
  clk: keystone: sci-clk: probe clocks from DT instead of firmware
  clk: keystone: sci-clk: split out the fw clock parsing to own function
  clk: keystone: sci-clk: cut down the clock name length

* clk-samsung:
  clk: samsung: Add bus clock for GPU/G3D on Exynos4412
  clk: samsung: add new clocks for DMC for Exynos5422 SoC
  clk: samsung: add BPLL rate table for Exynos 5422 SoC
  clk: samsung: add needed IDs for DMC clocks in Exynos5420
  clk: samsung: exynos5433: Use of_clk_get_parent_count()

* clk-imx: (38 commits)
  clk: imx8mq: Keep uart clocks on during system boot
  clk: imx: Remove __init for imx_register_uart_clocks() API
  clk: imx6q: fix section mismatch warning
  clk: imx8mq: Use devm_platform_ioremap_resource() instead of of_iomap()
  clk: imx8mq: Use imx_check_clocks() API directly
  clk: imx: Remove __init for imx_check_clocks() API
  clk: imx6sll: Switch to clk_hw based API
  clk: imx7d: Switch to clk_hw based API
  clk: imx6ul: Switch to clk_hw based API
  clk: imx6sx: Switch to clk_hw based API
  clk: imx6q: Switch to clk_hw based API
  clk: imx6sl: Switch to clk_hw based API
  clk: imx: Switch wrappers to clk_hw based API
  clk: imx: clk-fixup-mux: Switch to clk_hw based API
  clk: imx: clk-fixup-div: Switch to clk_hw based API
  clk: imx: clk-gate-exclusive: Switch to clk_hw based API
  clk: imx: clk-pfd: Switch to clk_hw based API
  clk: imx: clk-pllv3: Switch to clk_hw based API
  clk: imx: clk-gate2: Switch to clk_hw based API
  clk: imx: clk-cpu: Switch to clk_hw based API
  ...

* clk-allwinner: (29 commits)
  clk: Simplify debugfs printing and add a newline
  clk: sunxi-ng: sun8i-r: Use local parent references for SUNXI_CCU_GATE
  clk: sunxi-ng: a80-usb: Use local parent references for SUNXI_CCU_GATE
  clk: sunxi-ng: gate: Add macros for referencing local clock parents
  clk: sunxi-ng: h6-r: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: h6: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a64: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: f1c100s: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun8i-r: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: v3s: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: r40: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: h3: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a33: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a23: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a31: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun5i: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a10: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun8i-r: Use local parent references for CLK_HW_INIT_*
  clk: sunxi-ng: switch to of_clk_hw_register() for registering clks
  clk: fixed-factor: Add CLK_FIXED_FACTOR_FW_NAME for DT clock-names parent
  ...
2019-07-12 11:10:59 -07:00
Stephen Boyd 1f5d580cab Merge branches 'clk-qcom-gdsc-warn', 'clk-ingenic', 'clk-qcom-qcs404-reset', 'clk-xgene-limit' and 'clk-meson' into clk-next
* clk-qcom-gdsc-warn:
  clk: qcom: gdsc: WARN when failing to toggle

* clk-ingenic:
  MIPS: Remove dead code
  clk: ingenic: Remove unused functions
  MIPS: jz4740: PM: Let CGU driver suspend clocks and set sleep mode
  clk: ingenic: Handle setting the Low-Power Mode bit
  clk: ingenic: Add missing header in cgu.h
  clk: ingenic/jz4725b: Fix "pll half" divider not read/written properly
  clk: ingenic/jz4725b: Fix incorrect dividers for main clocks
  clk: ingenic/jz4770: Fix incorrect dividers for main clocks
  clk: ingenic/jz4740: Fix incorrect dividers for main clocks
  clk: ingenic: Add support for divider tables

* clk-qcom-qcs404-reset:
  clk: gcc-qcs404: Add PCIe resets

* clk-xgene-limit:
  clk: xgene: Don't build COMMON_CLK_XGENE by default

* clk-meson:
  clk: meson: g12a: mark fclk_div3 as critical
  clk: meson: g12a: Add support for G12B CPUB clocks
  dt-bindings: clk: meson: add g12b periph clock controller bindings
  clk: meson-g12a: add temperature sensor clocks
  dt-bindings: clk: g12a-clkc: add Temperature Sensor clock IDs
  clk: meson: meson8b: add the cts_i958 clock
  clk: meson: meson8b: add the cts_mclk_i958 clocks
  clk: meson: meson8b: add the cts_amclk clocks
  dt-bindings: clock: meson8b: add the audio clocks
  clk: meson: g12a: add controller register init
  clk: meson: eeclk: add init regs
  clk: meson: g12a: add mpll register init sequences
  clk: meson: mpll: add init callback and regs
  clk: meson: axg: spread spectrum is on mpll2
  clk: meson: gxbb: no spread spectrum on mpll0
  clk: meson: mpll: properly handle spread spectrum
  clk: meson: meson8b: fix a typo in the VPU parent names array variable
  clk: meson: fix MPLL 50M binding id typo
2019-07-12 11:10:52 -07:00
Stephen Boyd b6bb2bc2fd Merge branches 'clk-pwm-duty', 'clk-bcm', 'clk-mtk', 'clk-qcom-msm8998-gpu' and 'clk-renesas' into clk-next
- Add support to get duty cycle of generic pwm clks

* clk-pwm-duty:
  clk: pwm: implement the .get_duty_cycle callback

* clk-bcm:
  clk: bcm: Allow CLK_BCM2835 for ARCH_BRCMSTB
  clk: bcm: Make BCM2835 clock drivers selectable

* clk-mtk:
  clk: mediatek: Remove MT8183 unused clock
  clk: mediatek: add audsys clock driver for MT8516
  dt-bindings: mediatek: audsys: add support for MT8516

* clk-qcom-msm8998-gpu:
  dt-bindings: clock: Document gpucc for msm8998

* clk-renesas:
  clk: renesas: cpg-mssr: Use [] to denote a flexible array member
  clk: renesas: cpg-mssr: Combine driver-private and clock array allocation
  clk: renesas: mstp: Combine group-private and clock array allocation
  clk: renesas: div6: Combine clock-private and parent array allocation
  clk: renesas: cpg-mssr: Update kerneldoc for struct cpg_mssr_priv
  clk: renesas: r8a774a1: Add TMU clock
  clk: renesas: r8a77995: Add CMM clocks
  clk: renesas: r8a77990: Add CMM clocks
  clk: renesas: r8a77965: Add CMM clocks
  clk: renesas: r8a7795: Add CMM clocks
  clk: renesas: r9a06g032: Add clock domain support
  dt-bindings: clock: renesas: r9a06g032-sysctrl: Document power Domains
  clk: renesas: mstp: Remove error messages on out-of-memory conditions
  clk: renesas: cpg-mssr: Remove error messages on out-of-memory conditions
  clk: renesas: cpg-mssr: Use genpd of_node instead of local copy
  clk: renesas: r8a7796: Add CMM clocks
  clk: renesas: r8a779{5|6|65}: Add TPU clock
2019-07-12 11:10:43 -07:00
Stephen Boyd 55692cedf3 Merge tag 'v5.3-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner:

 - New clock-ids+exports for two clocks
 - Cleanup for some boilerplate code for clocks we cannot really control
   from the kernel, but want to define separately to match the
   hardware-description (watchdog in secure-grf)
 - Improvement in mmc phase calculation and cleanup of some rate defintions

* tag 'v5.3-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: export HDMIPHY clock on rk3228
  clk: rockchip: add watchdog pclk on rk3328
  clk: rockchip: add clock id for hdmi_phy special clock on rk3228
  clk: rockchip: add clock id for watchdog pclk on rk3328
  clk: rockchip: convert pclk_wdt boilerplat to new SGRF_GATE macro
  clk: rockchip: add a type from SGRF-controlled gate clocks
  clk: rockchip: Remove 48 MHz PLL rate from rk3288
  clk: rockchip: add 1.464GHz cpu-clock rate to rk3228
  clk: rockchip: Slightly more accurate math in rockchip_mmc_get_phase()
  clk: rockchip: Don't yell about bad mmc phases when getting
  clk: rockchip: Use clk_hw_get_rate() in MMC phase calculation
2019-07-12 11:07:23 -07:00
Stephen Boyd 179175d389 clk: Document some devm_clk_bulk*() APIs
Add some new clk devm APIs that we've added over time to the devres
documentation.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-25 14:28:01 -07:00
Stephen Boyd 11f6c2307c clk: Simplify debugfs printing and add a newline
The possible parent printing function duplicates a bunch of if
conditions. Pull that into another function so we can print an extra
character at the end, either a space or a newline. This way we can add
the required newline that got lost here and also shorten the code.

Fixes: 2d156b78ce ("clk: Fix debugfs clk_possible_parents for clks without parent string names")
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-25 11:56:04 -07:00
Stephen Boyd 76b77f1dbb Merge tag 'imx-clk-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx
Pull i.MX clk driver changes from Shawn Guo:

 - A series from Abel Vesa to switch i.MX6 and i.MX7 clock drivers to
   clk_hw based API
 - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
 - Create a common function imx_mmdc_mask_handshake() for masking MMDC
   handshake
 - Drop __init for function imx_check_clocks() and imx_register_uart_clocks(),
   so that they can be used by i.MX8 clock drivers which use driver model
 - Use devm_platform_ioremap_resource() instead of of_iomap() for imx8mq
   clock driver
 - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock.
 - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting

* tag 'imx-clk-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (38 commits)
  clk: imx8mq: Keep uart clocks on during system boot
  clk: imx: Remove __init for imx_register_uart_clocks() API
  clk: imx6q: fix section mismatch warning
  clk: imx8mq: Use devm_platform_ioremap_resource() instead of of_iomap()
  clk: imx8mq: Use imx_check_clocks() API directly
  clk: imx: Remove __init for imx_check_clocks() API
  clk: imx6sll: Switch to clk_hw based API
  clk: imx7d: Switch to clk_hw based API
  clk: imx6ul: Switch to clk_hw based API
  clk: imx6sx: Switch to clk_hw based API
  clk: imx6q: Switch to clk_hw based API
  clk: imx6sl: Switch to clk_hw based API
  clk: imx: Switch wrappers to clk_hw based API
  clk: imx: clk-fixup-mux: Switch to clk_hw based API
  clk: imx: clk-fixup-div: Switch to clk_hw based API
  clk: imx: clk-gate-exclusive: Switch to clk_hw based API
  clk: imx: clk-pfd: Switch to clk_hw based API
  clk: imx: clk-pllv3: Switch to clk_hw based API
  clk: imx: clk-gate2: Switch to clk_hw based API
  clk: imx: clk-cpu: Switch to clk_hw based API
  ...
2019-06-24 20:16:30 -07:00
Stephen Boyd c0bc660c90 Merge tag 'clk-v5.3-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-samsung
Pull Samsung clk driver updates from Sylwester Nawrocki:

 - Addition of clocks required for new Exynos5422 Dynamic Memory
   Controller driver
 - clock definition for Exynos4412 Mali
 - minor clean up of clk-exynos5433.c

* tag 'clk-v5.3-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: Add bus clock for GPU/G3D on Exynos4412
  clk: samsung: add new clocks for DMC for Exynos5422 SoC
  clk: samsung: add BPLL rate table for Exynos 5422 SoC
  clk: samsung: add needed IDs for DMC clocks in Exynos5420
  clk: samsung: exynos5433: Use of_clk_get_parent_count()
2019-06-24 20:07:46 -07:00
Stephen Boyd 5b68f22c3e Merge tag 'clk-renesas-for-v5.3-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Add CMM (Color Management Module) clocks on R-Car H3, M3-N, E3, and D3
  - Add TPU (Timer Pulse Unit / PWM) clocks on RZ/G2M
  - Small cleanups and fixes

* tag 'clk-renesas-for-v5.3-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: cpg-mssr: Use [] to denote a flexible array member
  clk: renesas: cpg-mssr: Combine driver-private and clock array allocation
  clk: renesas: mstp: Combine group-private and clock array allocation
  clk: renesas: div6: Combine clock-private and parent array allocation
  clk: renesas: cpg-mssr: Update kerneldoc for struct cpg_mssr_priv
  clk: renesas: r8a774a1: Add TMU clock
  clk: renesas: r8a77995: Add CMM clocks
  clk: renesas: r8a77990: Add CMM clocks
  clk: renesas: r8a77965: Add CMM clocks
  clk: renesas: r8a7795: Add CMM clocks
2019-06-24 20:04:57 -07:00
Stephen Boyd f925a054f0 Merge tag 'sunxi-ng-parent-rewrite-part-1-take-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner
Pull Allwinner sunxi-ng clk driver parent relation rewrite part 1 - take 2
from Chen-Yu Tsai:

"The first part of ongoing work to convert the sunxi-ng clk driver from
using global clock name strings to describe clk parenting, to having
direct struct clk_hw pointers, or local names based on clock-names from
the device tree binding.

This is based on Stephen Boyd's recent work allowing clk drivers to
specify clk parents using struct clk_hw * or parsing DT phandles in the
clk node.

This series can be split into a few major parts:

1) The first patch is a small fix for clk debugfs representation.

2) A bunch of CLK_HW_INIT_* helper macros are added. These cover the
   situations I encountered, or assume I will encounter, such as single
   internal (struct clk_hw *) parent, single DT (struct clk_parent_data
   .fw_name), multiple internal parents, and multiple mixed (internal +
   DT) parents. A special variant for just an internal single parent is
   added, CLK_HW_INIT_HWS, which lets the driver share the singular
   list, instead of having the compiler create a compound literal every
   time. It might even make sense to only keep this variant.

3) A bunch of CLK_FIXED_FACTOR_* helper macros are added. The rationale
   is the same as the single parent CLK_HW_INIT_* helpers.

4) Bulk conversion of CLK_FIXED_FACTOR to use local parent references,
   either struct clk_hw * or DT .fw_name types, whichever the hardware
   requires.

5) The beginning of SUNXI_CCU_GATE conversion to local parent
   references. This part is not done. They are included as justification
   and examples for the shared list of clk parents case."

* tag 'sunxi-ng-parent-rewrite-part-1-take-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (25 commits)
  clk: sunxi-ng: sun8i-r: Use local parent references for SUNXI_CCU_GATE
  clk: sunxi-ng: a80-usb: Use local parent references for SUNXI_CCU_GATE
  clk: sunxi-ng: gate: Add macros for referencing local clock parents
  clk: sunxi-ng: h6-r: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: h6: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a64: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: f1c100s: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun8i-r: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: v3s: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: r40: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: h3: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a33: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a23: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a31: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun5i: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: a10: Use local parent references for CLK_FIXED_FACTOR
  clk: sunxi-ng: sun8i-r: Use local parent references for CLK_HW_INIT_*
  clk: sunxi-ng: switch to of_clk_hw_register() for registering clks
  clk: fixed-factor: Add CLK_FIXED_FACTOR_FW_NAME for DT clock-names parent
  clk: fixed-factor: Add CLK_FIXED_FACTOR_HWS which takes list of struct clk_hw *
  ...
2019-06-24 18:28:31 -07:00
Stephen Boyd b2f874d27b Merge tag 'sunxi-clk-for-5.3-201906210814' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner
Pull Allwinner clk driver updates from Maxime Ripard:

 - A few patches to fix two minor bugs
 - Introduce a schema for our device tree bindings

* tag 'sunxi-clk-for-5.3-201906210814' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  dt-bindings: clk: Convert Allwinner CCU to a schema
  clk: sunxi-ng: sun50i-h6-r: Fix incorrect W1 clock gate register
  clk-sunxi: fix a missing-check bug in sunxi_divs_clk_setup()
2019-06-24 18:17:28 -07:00
Stephen Boyd 0b88bc9292 clk: ti: Use int to check return value from of_property_count_elems_of_size()
This function can return a negative number when it fails, but res->sets
is at most a u16 which can't hold that negative number. Let's store the
result into an int, ret, and then assign that to res->sets when it works
to avoid this logical impossibility.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-24 18:11:41 -07:00
Stephen Boyd 0af69227ed Merge tag 'keystone-clk-for-5.3-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux into clk-ti
Pull TI Keystone clk driver changes from Tero Kristo:

 - Add support for 32 bit clock IDs for sci-clks, this is needed
   for the new J721e SoC which has a few devices that have more than
   255 clocks associated to them.
 - Clock probing done from DT by default instead of firmware side.
   Scanning clocks from DT is much faster than firmware, and also we
   can omit unnecessary clocks which saves even more time. This has been
   done in the interest of saving boot time.
 - Remove the device tree node path from the registered sci-clk names.
   This mainly makes the debugfs interface more readable.
 - Also contains a single drivers/firmware change which needs to go in
   via this pull-request; to support the 32bit clock IDs.

* tag 'keystone-clk-for-5.3-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux:
  firmware: ti_sci: extend clock identifiers from u8 to u32
  clk: keystone: sci-clk: extend clock IDs to 32 bits
  clk: keystone: sci-clk: probe clocks from DT instead of firmware
  clk: keystone: sci-clk: split out the fw clock parsing to own function
  clk: keystone: sci-clk: cut down the clock name length
2019-06-24 17:52:29 -07:00
Stephen Boyd afa88bdbf1 Merge tag 'clk-meson-5.3-1' of https://github.com/BayLibre/clk-meson into clk-meson
Pull Amlogic clk driver updates from Jerome Brunet:

 - Fix mpll fractional part and spread sprectrum issues
 - Add meson8 audio clocks
 - Add g12a temperature sensors clocks
 - Add g12a and g12b cpu clocks

* tag 'clk-meson-5.3-1' of https://github.com/BayLibre/clk-meson:
  clk: meson: g12a: mark fclk_div3 as critical
  clk: meson: g12a: Add support for G12B CPUB clocks
  dt-bindings: clk: meson: add g12b periph clock controller bindings
  clk: meson-g12a: add temperature sensor clocks
  dt-bindings: clk: g12a-clkc: add Temperature Sensor clock IDs
  clk: meson: meson8b: add the cts_i958 clock
  clk: meson: meson8b: add the cts_mclk_i958 clocks
  clk: meson: meson8b: add the cts_amclk clocks
  dt-bindings: clock: meson8b: add the audio clocks
  clk: meson: g12a: add controller register init
  clk: meson: eeclk: add init regs
  clk: meson: g12a: add mpll register init sequences
  clk: meson: mpll: add init callback and regs
  clk: meson: axg: spread spectrum is on mpll2
  clk: meson: gxbb: no spread spectrum on mpll0
  clk: meson: mpll: properly handle spread spectrum
  clk: meson: meson8b: fix a typo in the VPU parent names array variable
  clk: meson: fix MPLL 50M binding id typo
2019-06-24 17:40:40 -07:00
Stephen Boyd c8edb316b9 clk: Do a DT parent lookup even when index < 0
We want to allow the parent lookup to happen even if the index is some
value less than 0. This may be the case if a clk provider only specifies
the .name member to match a string in the "clock-names" DT property. We
shouldn't require that the index be >= 0 to make this use case work.

Fixes: 601b6e9330 ("clk: Allow parents to be specified via clkspec index")
Reported-by: Alexandre Mergnat <amergnat@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-17 07:13:54 -07:00
Stephen Boyd f18d43046a Merge tag 'clk-meson-5.2-1-fixes' of https://github.com/BayLibre/clk-meson into clk-fixes
Pull Meson clk driver fixes from Jerome Brunet:

 - MPLL50M DT bindings typo fix
 - Meson9 VPU typo fixes

* tag 'clk-meson-5.2-1-fixes' of https://github.com/BayLibre/clk-meson:
  clk: meson: meson8b: fix a typo in the VPU parent names array variable
  clk: meson: fix MPLL 50M binding id typo
2019-06-12 15:58:11 -07:00
Stephen Boyd f81d086095 Merge tag 'clk-renesas-for-v5.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Add TPU (Timer Pulse Unit / PWM) clocks on R-Car H3, M3-W, and M3-N
  - Add CMM (Color Management Module) clocks on R-Car M3-W
  - Add Clock Domain support on RZ/N1

* tag 'clk-renesas-for-v5.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r9a06g032: Add clock domain support
  dt-bindings: clock: renesas: r9a06g032-sysctrl: Document power Domains
  clk: renesas: mstp: Remove error messages on out-of-memory conditions
  clk: renesas: cpg-mssr: Remove error messages on out-of-memory conditions
  clk: renesas: cpg-mssr: Use genpd of_node instead of local copy
  clk: renesas: r8a7796: Add CMM clocks
  clk: renesas: r8a779{5|6|65}: Add TPU clock
2019-06-07 10:56:05 -07:00
Stephen Boyd 30d5a94574 clk: Unexport __clk_of_table
This symbol doesn't need to be exported to clk providers anymore.
Originally, it was hidden inside clk.c, but then OMAP needed to get
access to it in commit 819b4861c1 ("CLK: ti: add init support for
clock IP blocks"), but eventually that code also changed in commit
c08ee14cc6 ("clk: ti: change clock init to use generic of_clk_init")
and we were left with this exported. Move this back into clk.c so that
it isn't exposed anymore.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-23 17:11:57 -07:00
Stephen Boyd 59fcdce425 clk: Remove ifdef for COMMON_CLK in clk-provider.h
This ifdef has been there since the beginning of this file, but it
doesn't really seem to serve any purpose besides obfuscating the struct
definitions and #defines here from compilation units that include it.
Let's always expose these function prototypes and struct definitions so
that code can inspect clk providers without needing to have
CONFIG_COMMON_CLK enabled.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-23 17:09:55 -07:00
Stephen Boyd 62e59c4e69 clk: Remove io.h from clk-provider.h
Now that we've gotten rid of clk_readl() we can remove io.h from the
clk-provider header and push out the io.h include to any code that isn't
already including the io.h header but using things like readl/writel,
etc.

Found with this grep:

  git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \
  	xargs git grep -l \
	-e '\<__iowrite32_copy\>' --or \
	-e '\<__ioread32_copy\>' --or \
	-e '\<__iowrite64_copy\>' --or \
	-e '\<ioremap_page_range\>' --or \
	-e '\<ioremap_huge_init\>' --or \
	-e '\<arch_ioremap_pud_supported\>' --or \
	-e '\<arch_ioremap_pmd_supported\>' --or \
	-e '\<devm_ioport_map\>' --or \
	-e '\<devm_ioport_unmap\>' --or \
	-e '\<IOMEM_ERR_PTR\>' --or \
	-e '\<devm_ioremap\>' --or \
	-e '\<devm_ioremap_nocache\>' --or \
	-e '\<devm_ioremap_wc\>' --or \
	-e '\<devm_iounmap\>' --or \
	-e '\<devm_ioremap_release\>' --or \
	-e '\<devm_memremap\>' --or \
	-e '\<devm_memunmap\>' --or \
	-e '\<__devm_memremap_pages\>' --or \
	-e '\<pci_remap_cfgspace\>' --or \
	-e '\<arch_has_dev_port\>' --or \
	-e '\<arch_phys_wc_add\>' --or \
	-e '\<arch_phys_wc_del\>' --or \
	-e '\<memremap\>' --or \
	-e '\<memunmap\>' --or \
	-e '\<arch_io_reserve_memtype_wc\>' --or \
	-e '\<arch_io_free_memtype_wc\>' --or \
	-e '\<__io_aw\>' --or \
	-e '\<__io_pbw\>' --or \
	-e '\<__io_paw\>' --or \
	-e '\<__io_pbr\>' --or \
	-e '\<__io_par\>' --or \
	-e '\<__raw_readb\>' --or \
	-e '\<__raw_readw\>' --or \
	-e '\<__raw_readl\>' --or \
	-e '\<__raw_readq\>' --or \
	-e '\<__raw_writeb\>' --or \
	-e '\<__raw_writew\>' --or \
	-e '\<__raw_writel\>' --or \
	-e '\<__raw_writeq\>' --or \
	-e '\<readb\>' --or \
	-e '\<readw\>' --or \
	-e '\<readl\>' --or \
	-e '\<readq\>' --or \
	-e '\<writeb\>' --or \
	-e '\<writew\>' --or \
	-e '\<writel\>' --or \
	-e '\<writeq\>' --or \
	-e '\<readb_relaxed\>' --or \
	-e '\<readw_relaxed\>' --or \
	-e '\<readl_relaxed\>' --or \
	-e '\<readq_relaxed\>' --or \
	-e '\<writeb_relaxed\>' --or \
	-e '\<writew_relaxed\>' --or \
	-e '\<writel_relaxed\>' --or \
	-e '\<writeq_relaxed\>' --or \
	-e '\<readsb\>' --or \
	-e '\<readsw\>' --or \
	-e '\<readsl\>' --or \
	-e '\<readsq\>' --or \
	-e '\<writesb\>' --or \
	-e '\<writesw\>' --or \
	-e '\<writesl\>' --or \
	-e '\<writesq\>' --or \
	-e '\<inb\>' --or \
	-e '\<inw\>' --or \
	-e '\<inl\>' --or \
	-e '\<outb\>' --or \
	-e '\<outw\>' --or \
	-e '\<outl\>' --or \
	-e '\<inb_p\>' --or \
	-e '\<inw_p\>' --or \
	-e '\<inl_p\>' --or \
	-e '\<outb_p\>' --or \
	-e '\<outw_p\>' --or \
	-e '\<outl_p\>' --or \
	-e '\<insb\>' --or \
	-e '\<insw\>' --or \
	-e '\<insl\>' --or \
	-e '\<outsb\>' --or \
	-e '\<outsw\>' --or \
	-e '\<outsl\>' --or \
	-e '\<insb_p\>' --or \
	-e '\<insw_p\>' --or \
	-e '\<insl_p\>' --or \
	-e '\<outsb_p\>' --or \
	-e '\<outsw_p\>' --or \
	-e '\<outsl_p\>' --or \
	-e '\<ioread8\>' --or \
	-e '\<ioread16\>' --or \
	-e '\<ioread32\>' --or \
	-e '\<ioread64\>' --or \
	-e '\<iowrite8\>' --or \
	-e '\<iowrite16\>' --or \
	-e '\<iowrite32\>' --or \
	-e '\<iowrite64\>' --or \
	-e '\<ioread16be\>' --or \
	-e '\<ioread32be\>' --or \
	-e '\<ioread64be\>' --or \
	-e '\<iowrite16be\>' --or \
	-e '\<iowrite32be\>' --or \
	-e '\<iowrite64be\>' --or \
	-e '\<ioread8_rep\>' --or \
	-e '\<ioread16_rep\>' --or \
	-e '\<ioread32_rep\>' --or \
	-e '\<ioread64_rep\>' --or \
	-e '\<iowrite8_rep\>' --or \
	-e '\<iowrite16_rep\>' --or \
	-e '\<iowrite32_rep\>' --or \
	-e '\<iowrite64_rep\>' --or \
	-e '\<__io_virt\>' --or \
	-e '\<pci_iounmap\>' --or \
	-e '\<virt_to_phys\>' --or \
	-e '\<phys_to_virt\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<__ioremap\>' --or \
	-e '\<iounmap\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<ioremap_nocache\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wt\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<xlate_dev_kmem_ptr\>' --or \
	-e '\<xlate_dev_mem_ptr\>' --or \
	-e '\<unxlate_dev_mem_ptr\>' --or \
	-e '\<virt_to_bus\>' --or \
	-e '\<bus_to_virt\>' --or \
	-e '\<memset_io\>' --or \
	-e '\<memcpy_fromio\>' --or \
	-e '\<memcpy_toio\>'

I also reordered a couple includes when they weren't alphabetical and
removed clk.h from kona, replacing it with clk-provider.h because
that driver doesn't use clk consumer APIs.

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: John Crispin <john@phrozen.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-15 13:21:37 -07:00
Stephen Boyd c1157f60d7 Merge branch 'clk-parent-rewrite-1' into clk-next
- Rewrite how clk parents can be specified to be DT/clkdev based instead
   of just string based

* clk-parent-rewrite-1:
  clk: Cache core in clk_fetch_parent_index() without names
  clk: fixed-factor: Initialize clk_init_data on stack
  clk: fixed-factor: Let clk framework find parent
  clk: Allow parents to be specified via clkspec index
  clk: Look for parents with clkdev based clk_lookups
  clk: Allow parents to be specified without string names
  clk: Add of_clk_hw_register() API for early clk drivers
  driver core: Let dev_of_node() accept a NULL dev
  clk: Prepare for clk registration API that uses DT nodes
  clkdev: Move clk creation outside of 'clocks_mutex'
2019-05-07 11:46:13 -07:00
Stephen Boyd 0caf000817 Merge branch 'clk-ti' into clk-next
* clk-ti:
  clk: Remove CLK_IS_BASIC clk flag
  clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devices
  clk: ti: dra7x: prevent non-existing clkctrl clocks from registering
  ARM: omap2+: hwmod: drop CLK_IS_BASIC flag usage
  clk: ti: export the omap2_clk_is_hw_omap call
2019-05-07 11:46:02 -07:00
Stephen Boyd ff060019f4 Merge branches 'clk-stm32f4', 'clk-tegra', 'clk-at91', 'clk-sifive-fu540' and 'clk-spdx' into clk-next
- Support for STM32F769
 - Rework AT91 sckc DT bindings
 - Fix slow RC oscillator issue on sama5d3
 - AT91 sam9x60 PMC support
 - SiFive FU540 PRCI and PLL support

* clk-stm32f4:
  clk: stm32mp1: Add ddrperfm clock
  clk: stm32: Introduce clocks of STM32F769 board

* clk-tegra:
  clk: tegra: divider: Mark Memory Controller clock as read-only
  clk: tegra: emc: Replace BUG() with WARN_ONCE()
  clk: tegra: emc: Fix EMC max-rate clamping
  clk: tegra: emc: Support multiple RAM codes
  clk: tegra: emc: Don't enable EMC clock manually
  clk: tegra124: Remove lock-enable bit from PLLM
  clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider
  clk: tegra: Don't enable already enabled PLLs

* clk-at91:
  clk: at91: Mark struct clk_range as const
  clk: at91: add sam9x60 pmc driver
  dt-bindings: clk: at91: add bindings for SAM9X60 pmc
  clk: at91: add sam9x60 PLL driver
  clk: at91: master: Add sam9x60 support
  clk: at91: usb: Add sam9x60 support
  clk: at91: allow configuring generated PCR layout
  clk: at91: allow configuring peripheral PCR layout
  clk: at91: sckc: handle different RC startup time
  clk: at91: modernize sckc binding
  dt-bindings: clock: at91: new sckc bindings

* clk-sifive-fu540:
  clk: sifive: add a driver for the SiFive FU540 PRCI IP block
  clk: analogbits: add Wide-Range PLL library
  dt-bindings: clk: add documentation for the SiFive PRCI driver

* clk-spdx:
  clk: sunxi-ng: Use the correct style for SPDX License Identifier
  clk: sprd: Use the correct style for SPDX License Identifier
  clk: renesas: Use the correct style for SPDX License Identifier
  clk: qcom: Use the correct style for SPDX License Identifier
  clk: davinci: Use the correct style for SPDX License Identifier
  clk: actions: Use the correct style for SPDX License Identifier
2019-05-07 11:45:29 -07:00
Stephen Boyd 5816b74581 Merge branches 'clk-hisi', 'clk-lochnagar', 'clk-allwinner', 'clk-rockchip' and 'clk-qoriq' into clk-next
- Mark UFS clk as critical on Hi-Silicon hi3660 SoCs
 - Support for Cirrus Logic Lochnagar clks

* clk-hisi:
  clk: hi3660: Mark clk_gate_ufs_subsys as critical

* clk-lochnagar:
  clk: lochnagar: Add support for the Cirrus Logic Lochnagar
  clk: lochnagar: Add initial binding documentation

* clk-allwinner:
  clk: sunxi-ng: sun5i: Export the MBUS clock
  clk: sunxi-ng: a83t: Add pll-video0 as parent of csi-mclk
  clk: sunxi-ng: h6: Allow video & vpu clocks to change parent rate
  clk: sunxi-ng: h6: Preset hdmi-cec clock parent
  clk: sunxi: Add Kconfig options
  clk: sunxi-ng: f1c100s: fix USB PHY gate bit offset
  clk: sunxi-ng: Allow DE clock to set parent rate

* clk-rockchip:
  clk: rockchip: undo several noc and special clocks as critical on rk3288
  clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-type
  clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288
  clk: rockchip: Limit use of USB PHY clock to USB on rk3288
  clk: rockchip: Fix video codec clocks on rk3288
  clk: rockchip: Make rkpwm a critical clock on rk3288
  clk: rockchip: fix wrong clock definitions for rk3328

* clk-qoriq:
  clk: qoriq: increase array size of cmux_to_group
  dt-bindings: qoriq-clock: Add ls1028a chip compatible string
  clk: qoriq: Add ls1028a clock configuration
  clk: qoriq: add more PLL divider clocks support
  dt-bindings: qoriq-clock: add more PLL divider clocks support
2019-05-07 11:45:13 -07:00
Stephen Boyd 7e9c62bdb4 Merge branches 'clk-sa', 'clk-aspeed', 'clk-samsung', 'clk-ingenic' and 'clk-zynq' into clk-next
- Various static analysis fixes/finds
 - Video Engine (ECLK) support on Aspeed SoCs
 - Xilinx ZynqMP Versal platform support
 - Convert Xilinx ZynqMP driver to be struct oriented

* clk-sa:
  clk: mvebu: fix spelling mistake "gatable" -> "gateable"
  clk: ux500: add range to usleep_range
  clk: tegra: Make tegra_clk_super_mux_ops static
  clk: davinci: cfgchip: use PTR_ERR_OR_ZERO in da8xx_cfgchip_register_div4p5

* clk-aspeed:
  clk: Aspeed: Setup video engine clocking

* clk-samsung:
  clk: samsung: exynos5410: Add gate clock for ADC
  clk: samsung: dt-bindings: Add ADC clock ID to Exynos5410
  clk: samsung: dt-bindings: Put CLK_UART3 in order

* clk-ingenic:
  clk: ingenic: jz4725b: Add UDC PHY clock
  dt-bindings: clock: jz4725b-cgu: Add UDC PHY clock

* clk-zynq:
  clk: zynqmp: use structs for clk query responses
  clk: zynqmp: fix check for fractional clock
  clk: zynqmp: do not export zynqmp_clk_register_* functions
  clk: zynqmp: fix kerneldoc of __zynqmp_clock_get_parents
  drivers: clk: Update clock driver to handle clock attribute
  drivers: clk: zynqmp: Allow zero divisor value
2019-05-07 11:44:56 -07:00
Stephen Boyd f6111b9d79 Merge branches 'clk-doc', 'clk-more-critical', 'clk-meson' and 'clk-basic-be' into clk-next
- Remove clk_readl() and introduce BE versions of basic clk types

* clk-doc:
  clk: Drop duplicate clk_register() documentation
  clk: Document and simplify clk_core_get_rate_nolock()
  clk: Remove 'flags' member of struct clk_fixed_rate
  clk: nxp: Drop 'flags' on fixed_rate clk macro
  clk: Document __clk_mux_determine_rate()
  clk: Document CLK_MUX_READ_ONLY mux flag
  clk: Document deprecated things
  clk: Collapse gpio clk kerneldoc

* clk-more-critical:
  clk: highbank: Convert to CLK_IS_CRITICAL

* clk-meson: (21 commits)
  clk: meson: axg-audio: add g12a support
  clk: meson: axg-audio: don't register inputs in the onecell data
  clk: meson: axg_audio: replace prefix axg by aud
  dt-bindings: clk: axg-audio: add g12a support
  clk: meson: meson8b: add the video decoder clock trees
  clk: meson: meson8b: add the VPU clock trees
  clk: meson: meson8b: add support for the GP_PLL clock on Meson8m2
  clk: meson: meson8b: use a separate clock table for Meson8m2
  dt-bindings: clock: meson8b: export the video decoder clocks
  clk: meson-g12a: add video decoder clocks
  dt-bindings: clock: meson8b: export the VPU clock
  clk: meson-g12a: add PCIE PLL clocks
  dt-bindings: clock: g12a-aoclk: expose CLKID_AO_CTS_OSCIN
  clk: meson-pll: add reduced specific clk_ops for G12A PCIe PLL
  dt-bindings: clock: meson8b: drop the "ABP" clock definition
  clk: meson: g12a: add cpu clocks
  dt-bindings: clk: g12a-clkc: add VDEC clock IDs
  dt-bindings: clock: axg-audio: unexpose controller inputs
  dt-bindings: clk: g12a-clkc: add PCIE PLL clock ID
  clk: g12a-aoclk: re-export CLKID_AO_SAR_ADC_SEL clock id
  ...

* clk-basic-be:
  clk: core: replace clk_{readl,writel} with {readl,writel}
  clk: core: remove powerpc special handling
  powerpc/512x: mark clocks as big endian
  clk: mux: add explicit big endian support
  clk: multiplier: add explicit big endian support
  clk: gate: add explicit big endian support
  clk: fractional-divider: add explicit big endian support
  clk: divider: add explicit big endian support
2019-05-07 11:44:42 -07:00
Stephen Boyd 2ed3b9103a Merge branches 'clk-renesas', 'clk-qcom', 'clk-mtk', 'clk-milbeaut' and 'clk-imx' into clk-next
- Qualcomm QCS404 CDSP clk support
 - Qualcomm QCS404 Turing clk support
 - Mediatek MT8183 clock support
 - Mediatek MT8516 clock support
 - Milbeaut M10V clk controller support

* clk-renesas:
  clk: renesas: rcar-gen3: Remove unused variable
  clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value
  clk: renesas: r8a77980: Fix RPC-IF module clock's parent
  clk: renesas: rcar-gen3: Rename DRIF clocks
  clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of SYS-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of HS-USB
  clk: renesas: rcar-gen3: Correct parent clock of EHCI/OHCI
  clk: renesas: r8a774c0: Add Z2 clock
  clk: renesas: r8a77990: Add Z2 clock
  clk: renesas: rcar-gen3: Support Z and Z2 clocks with high frequency parents
  math64: New DIV64_U64_ROUND_CLOSEST helper
  clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor
  clk: renesas: r9a06g032: Add missing PCI USB clock
  clk: renesas: r7s9210: Always use readl()
  clk: renesas: rcar-gen3: Pass name/offset to cpg_sd_clk_register()

* clk-qcom:
  clk: qcom: Skip halt checks on gcc_pcie_0_pipe_clk for 8998
  clk: qcom: Add QCS404 TuringCC
  clk: qcom: branch: Add AON clock ops
  dt-bindings: clock: Introduce Qualcomm Turing Clock controller
  clk: qcom: gcc-qcs404: Add CDSP related clocks and resets

* clk-mtk:
  clk: mediatek: add clock driver for MT8516
  dt-bindings: mediatek: apmixedsys: add support for MT8516
  dt-bindings: mediatek: infracfg: add support for MT8516
  dt-bindings: mediatek: topckgen: add support for MT8516
  clk: mediatek: Allow changing PLL rate when it is off
  clk: mediatek: Add MT8183 clock support
  clk: mediatek: Add configurable pcw_chg_reg to mtk_pll_data
  clk: mediatek: Add dt-bindings for MT8183 clocks
  dt-bindings: ARM: Mediatek: Document bindings for MT8183
  clk: mediatek: Add configurable pcwibits and fmin to mtk_pll_data
  clk: mediatek: Add new clkmux register API
  clk: mediatek: Disable tuner_en before change PLL rate

* clk-milbeaut:
  clock: milbeaut: Add Milbeaut M10V clock controller
  dt-bindings: clock: milbeaut: add Milbeaut clock description

* clk-imx:
  clk: imx: correct pfdv2 gate_bit/vld_bit operations
  clk: imx: clk-pllv3: mark expected switch fall-throughs
  clk: imx8mq: Add dsi_ipg_div
  clk: imx: pllv4: add fractional-N pll support
  clk: imx: keep uart clock on during system boot
  clk: imx: correct i.MX7D AV PLL num/denom offset
  clk: imx6sll: Fix mispelling uart4_serial as serail
  clk: imx: pll14xx: drop unused variable
  clk: imx: rename clk-imx51-imx53.c to clk-imx5.c
  clk: imx5: Fix i.MX50 ESDHC clock registers
  clk: imx5: Fix i.MX50 mainbus clock registers
  clk: imx: Remove unused imx_get_clk_hw_fixed
  dt-bindings: clock: imx7ulp: remove SNVS clock
  clk: imx7ulp: remove snvs clock
2019-05-07 11:44:21 -07:00
Stephen Boyd 1a079560b1 clk: Cache core in clk_fetch_parent_index() without names
If a clk has specified parents via clk_hw pointers it won't specify the
globally unique names for the parents. Without the unique names, we
can't fallback to comparing them against the name of the 'parent'
pointer here. Therefore, do a pointer comparison against the clk_hw
pointers too and cache the clk_core structure if they match. This fixes
parent lookup code for clks that only specify clk_hw pointers and
nothing else, like muxes that are purely inside a clk controller.

Similarly, if the parent pointer isn't cached after trying to match
clk_core or clk_hw pointers, lookup the pointer from DT or via clkdev
lookups instead of relying purely on the globally unique clk name match.
This should allow us to move away from having to specify global names
for clk parents entirely.

While we're in the area, add some comments so it's clearer what's going
on. The if statements don't lend themselves to much clarity in their raw
form.

Fixes: fc0c209c14 ("clk: Allow parents to be specified without string names")
Reported-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-03 10:38:01 -07:00
Stephen Boyd 90b6c5c73c clk: Remove CLK_IS_BASIC clk flag
This flag was historically used to indicate that a clk is a "basic" type
of clk like a mux, divider, gate, etc. This never turned out to be very
useful though because it was hard to cleanly split "basic" clks from
other clks in a system. This one flag was a way for type introspection
and it just didn't scale. If anything, it was used by the TI clk driver
to indicate that a clk_hw wasn't contained in the SoC specific clk
structure. We can get rid of this define now that TI is finding those
clks a different way.

Cc: Tero Kristo <t-kristo@ti.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: <linux-mips@vger.kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: <linux-pwm@vger.kernel.org>
Cc: <linux-amlogic@lists.infradead.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-26 10:40:49 -07:00
Stephen Boyd 7b4c162e03 clk: at91: Mark struct clk_range as const
It's just some static data that doesn't get changed after being used.
Mark it const everywhere.

Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-25 14:16:26 -07:00
Stephen Boyd d3dfc16f8f Merge tag 'v5.2-rockchip-clk-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner:

 - Fixes for rk3328 and rk3288
 - New sub-type for an upcoming SoC where mux and divider
   are not necessarily in the same register anymore

* tag 'v5.2-rockchip-clk-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: undo several noc and special clocks as critical on rk3288
  clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-type
  clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288
  clk: rockchip: Limit use of USB PHY clock to USB on rk3288
  clk: rockchip: Fix video codec clocks on rk3288
  clk: rockchip: Make rkpwm a critical clock on rk3288
  clk: rockchip: fix wrong clock definitions for rk3328
2019-04-25 08:56:23 -07:00
Stephen Boyd d635c3512d Merge tag 'clk-imx7ulp-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx
Pull i.MX7UPL clk changes from Shawn Guo:

 - Remove SNVS clock from i.MX7UPL clock driver and bindings, as the
   clock will be visible on M4 core only, and never be accessed by
   Cortex-A cores

* tag 'clk-imx7ulp-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: clock: imx7ulp: remove SNVS clock
  clk: imx7ulp: remove snvs clock
2019-04-25 08:31:32 -07:00
Stephen Boyd 363de1d63e Merge tag 'clk-imx5-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx
Pull i.MX5 clk changes from Shawn Guo:

 - A couple of patches from Jonathan Neuschäfer to improve i.MX5 clock
   driver for i.MX50 support
 - Rename file clk-imx51-imx53.c to clk-imx5.c, as it covers support for
   all i.MX5 series SoCs including i.MX50

* tag 'clk-imx5-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx: rename clk-imx51-imx53.c to clk-imx5.c
  clk: imx5: Fix i.MX50 ESDHC clock registers
  clk: imx5: Fix i.MX50 mainbus clock registers
2019-04-25 08:30:39 -07:00
Stephen Boyd 5d27e1cda1 Merge tag 'clk-imx-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx
Pull i.MX clk changes from Shawn Guo:

 - Clean up unused imx_get_clk_hw_fixed() inline function

* tag 'clk-imx-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx: Remove unused imx_get_clk_hw_fixed
2019-04-25 08:30:19 -07:00
Stephen Boyd e4818d615b clk: fixed-factor: Initialize clk_init_data on stack
This structure can be full of junk from the stack if we don't initialize
it. The clk framework tests clk_init_data::parent_names for non-NULL and
then considers that as the parent name pointer, but if it's full of junk
then we'll try to deref a bad pointer and oops the system. Let's
initialize the structure so that only clk_init_data::parent_names or
clk_init_data::parent_data is set, and not both.

Reported-by: "kernelci.org bot" <bot@kernelci.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Tony Lindgren <tony@atomide.com>
Fixes: ecbf3f1795 ("clk: fixed-factor: Let clk framework find parent")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-23 10:46:51 -07:00
Stephen Boyd ecbf3f1795 clk: fixed-factor: Let clk framework find parent
Convert this driver to a more modern way of specifying parents now that
we have a way to specify clk parents by DT index. This lets us nicely
avoid a problem where a parent clk name isn't know because the parent
clk hasn't been registered yet.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:53:20 -07:00
Stephen Boyd 601b6e9330 clk: Allow parents to be specified via clkspec index
Some clk providers are simple DT nodes that only have a 'clocks'
property without having an associated 'clock-names' property. In these
cases, we want to let these clk providers point to their parent clks
without having to dereference the 'clocks' property at probe time to
figure out the parent's globally unique clk name. Let's add an 'index'
property to the parent_data structure so that clk providers can indicate
that their parent is a particular index in the 'clocks' DT property.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:53:19 -07:00
Stephen Boyd dde4eff47c clk: Look for parents with clkdev based clk_lookups
In addition to looking for DT based parents, support clkdev based
clk_lookups. This should allow non-DT based clk drivers to participate
in the parent lookup process.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:53:00 -07:00
Stephen Boyd fc0c209c14 clk: Allow parents to be specified without string names
The common clk framework is lacking in ability to describe the clk
topology without specifying strings for every possible parent-child
link. There are a few drawbacks to the current approach:

 1) String comparisons are used for everything, including describing
 topologies that are 'local' to a single clock controller.

 2) clk providers (e.g. i2c clk drivers) need to create globally unique
 clk names to avoid collisions in the clk namespace, leading to awkward
 name generation code in various clk drivers.

 3) DT bindings may not fully describe the clk topology and linkages
 between clk controllers because drivers can easily rely on globally unique
 strings to describe connections between clks.

This leads to confusing DT bindings, complicated clk name generation
code, and inefficient string comparisons during clk registration just so
that the clk framework can detect the topology of the clk tree.
Furthermore, some drivers call clk_get() and then __clk_get_name() to
extract the globally unique clk name just so they can specify the parent
of the clk they're registering. We have of_clk_parent_fill() but that
mostly only works for single clks registered from a DT node, which isn't
the norm. Let's simplify this all by introducing two new ways of
specifying clk parents.

The first method is an array of pointers to clk_hw structures
corresponding to the parents at that index. This works for clks that are
registered when we have access to all the clk_hw pointers for the
parents.

The second method is a mix of clk_hw pointers and strings of local and
global parent clk names. If the .fw_name member of the map is set we'll
look for that clk by performing a DT based lookup of the device the clk
is registered with and the .name specified in the map. If that fails,
we'll fallback to the .name member and perform a global clk name lookup
like we've always done before.

Using either one of these new methods is entirely optional. Existing
drivers will continue to work, and they can migrate to this new approach
as they see fit. Eventually, we'll want to get rid of the 'parent_names'
array in struct clk_init_data and use one of these new methods instead.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Rob Herring <robh@kernel.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:52:58 -07:00
Stephen Boyd 89a5ddcc79 clk: Add of_clk_hw_register() API for early clk drivers
In some circumstances drivers register clks early and don't have access
to a struct device because the device model isn't initialized yet. Add
an API to let drivers register clks associated with a struct device_node
so that these drivers can participate in getting parent clks through DT.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Rob Herring <robh@kernel.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:24:35 -07:00
Stephen Boyd 1b833924e5 driver core: Let dev_of_node() accept a NULL dev
We'd like to chain this in places where the 'dev' argument might be
NULL. Let this function take a NULL 'dev' so this can work.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rob Herring <robh@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:24:32 -07:00
Stephen Boyd fceaa7d800 clk: Prepare for clk registration API that uses DT nodes
Split out the body of the clk_register() function so it can be shared
between the different types of registration APIs (DT, device).

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Rob Herring <robh@kernel.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:24:28 -07:00
Stephen Boyd d1011cba02 clkdev: Move clk creation outside of 'clocks_mutex'
We don't need to hold the 'clocks_mutex' here when we're creating a clk
pointer from a clk_lookup structure. Instead, we just need to make sure
that the lookup doesn't go away while we dereference the lookup pointer
to extract the clk_hw pointer out of it. Let's move things around
slightly so that we have a new function to get the clk_hw out of the
lookup with the right locking and then chain the two together for what
used to be __clk_get_sys().

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:24:23 -07:00
Stephen Boyd aa2a0592ce Merge tag 'clk-v5.2-samsung' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-samsung
Pull Samsung clk driver updates from Sylwester Nawrocki:

 - Addition of ADC clock definition for Exynos 5410 SoC (Odroid XU)

* tag 'clk-v5.2-samsung' of https://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos5410: Add gate clock for ADC
  clk: samsung: dt-bindings: Add ADC clock ID to Exynos5410
  clk: samsung: dt-bindings: Put CLK_UART3 in order
2019-04-19 13:20:58 -07:00
Stephen Boyd 93737fe93e Merge tag 'sunxi-clk-for-5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner
Pull Allwinner clk driver updates from Maxime Ripard:

Our usual bunch of changes, this time, it's mainly:

 - Export a new clock for the MBUS controller on the A13
 - H6 fixes to support a finer clocking of the video and VPU engines
 - Add some Kconfig options
 - Some bit offset fixes

* tag 'sunxi-clk-for-5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun5i: Export the MBUS clock
  clk: sunxi-ng: a83t: Add pll-video0 as parent of csi-mclk
  clk: sunxi-ng: h6: Allow video & vpu clocks to change parent rate
  clk: sunxi-ng: h6: Preset hdmi-cec clock parent
  clk: sunxi: Add Kconfig options
  clk: sunxi-ng: f1c100s: fix USB PHY gate bit offset
  clk: sunxi-ng: Allow DE clock to set parent rate
2019-04-19 13:11:39 -07:00
Stephen Boyd ac71e68746 Merge tag 'clk-fixes-for-5.1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes
Pull Allwinner clk fixes from Maxime Ripard:

 - Some fixes for odd cases of the NKMP clocks

* tag 'clk-fixes-for-5.1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: nkmp: Explain why zero width check is needed
  clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0)
2019-04-19 13:06:58 -07:00
Stephen Boyd 5a7efdacb9 clkdev: Hold clocks_mutex while iterating clocks list
We recently introduced a change to support devm clk lookups. That change
introduced a code-path that used clk_find() without holding the
'clocks_mutex'. Unfortunately, clk_find() iterates over the 'clocks'
list and so we need to prevent the list from being modified at the same
time. Do this by holding the mutex and checking to make sure it's held
while iterating the list.

Note, we don't really care if the lookup is freed after we find it with
clk_find() because we're just doing a pointer comparison, but if we did
care we would need to keep holding the mutex while we dereference the
clk_lookup pointer.

Fixes: 3eee6c7d11 ("clkdev: add managed clkdev lookup registration")
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-18 13:33:13 -07:00
Stephen Boyd 6e4fcc34e6 Merge tag 'meson-clk-5.2-2' of https://github.com/BayLibre/clk-meson into clk-meson
Pull more Amlogic Meson clk driver udpates from Jerome Brunet:

 - Do not register clock inputs in clock provider
 - Add g12a support in the axg audio clock controller

* tag 'meson-clk-5.2-2' of https://github.com/BayLibre/clk-meson:
  clk: meson: axg-audio: add g12a support
  clk: meson: axg-audio: don't register inputs in the onecell data
  clk: meson: axg_audio: replace prefix axg by aud
  dt-bindings: clk: axg-audio: add g12a support
2019-04-18 13:30:05 -07:00
Stephen Boyd c2f0705f85 clk: renesas: rcar-gen3: Remove unused variable
This variable is no longer used and the compiler rightly complains that
it should be removed. Drop it to silence the following:

drivers/clk/renesas/rcar-gen3-cpg.c: In function 'cpg_sd_clk_register':
drivers/clk/renesas/rcar-gen3-cpg.c:386:15: warning: unused variable 'i' [-Wunused-variable]
  unsigned int i;

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: b953eaaeb5 ("clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 10:35:45 -07:00
Stephen Boyd 013b1857e8 Merge tag 'clk-renesas-for-v5.2-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull renesas clk driver updates from Geert Uytterhoeven:

  - Add missing PCI USB clock on RZ/N1
  - Add Z2 (Cortex-A53) clocks on R-Car E3 and RZ/G2E, incl. a new
    helper in <linux/math64.h>

* tag 'clk-renesas-for-v5.2-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value
  clk: renesas: r8a77980: Fix RPC-IF module clock's parent
  clk: renesas: rcar-gen3: Rename DRIF clocks
  clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of SYS-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of HS-USB
  clk: renesas: rcar-gen3: Correct parent clock of EHCI/OHCI
  clk: renesas: r8a774c0: Add Z2 clock
  clk: renesas: r8a77990: Add Z2 clock
  clk: renesas: rcar-gen3: Support Z and Z2 clocks with high frequency parents
  math64: New DIV64_U64_ROUND_CLOSEST helper
  clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor
  clk: renesas: r9a06g032: Add missing PCI USB clock
  clk: renesas: r7s9210: Always use readl()
  clk: renesas: rcar-gen3: Pass name/offset to cpg_sd_clk_register()
2019-04-11 10:29:55 -07:00
Stephen Boyd b995dcca7c platform/x86: pmc_atom: Drop __initconst on dmi table
It's used by probe and that isn't an init function. Drop this so that we
don't get a section mismatch.

Reported-by: kbuild test robot <lkp@intel.com>
Cc: David Müller <dave.mueller@gmx.ch>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Fixes: 7c2e071300 ("clk: x86: Add system specific quirk to mark clocks as critical")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 10:25:37 -07:00
Stephen Boyd bc840f3357 Merge tag 'meson-clk-5.2' of https://github.com/BayLibre/clk-meson into clk-meson
Pull Amlogic Meson clk driver updates from Neil Armstrong:

 - Adds VPU and Video Decoder clocks on Meson8b
 - Finally remove the wrong ABP Meson8b clock id
 - Adds Video Decoder, PCIe PLL & CPU Clocks on G12A
 - Re-expose SAR_ADC_SEL and CTS_OSCIN on G12A AO clock controller
 - Un-expose some AXG-Audio input clocks IDs

* tag 'meson-clk-5.2' of https://github.com/BayLibre/clk-meson:
  clk: meson: meson8b: add the video decoder clock trees
  clk: meson: meson8b: add the VPU clock trees
  clk: meson: meson8b: add support for the GP_PLL clock on Meson8m2
  clk: meson: meson8b: use a separate clock table for Meson8m2
  clk: meson-g12a: add video decoder clocks
  clk: meson-g12a: add PCIE PLL clocks
  clk: meson-pll: add reduced specific clk_ops for G12A PCIe PLL
  clk: meson: g12a: add cpu clocks
  dt-bindings: clock: meson8b: export the video decoder clocks
  dt-bindings: clock: meson8b: export the VPU clock
  dt-bindings: clock: g12a-aoclk: expose CLKID_AO_CTS_OSCIN
  dt-bindings: clock: meson8b: drop the "ABP" clock definition
  dt-bindings: clk: g12a-clkc: add VDEC clock IDs
  dt-bindings: clock: axg-audio: unexpose controller inputs
  dt-bindings: clk: g12a-clkc: add PCIE PLL clock ID
  clk: g12a-aoclk: re-export CLKID_AO_SAR_ADC_SEL clock id
  clk: meson-g12a: add cpu clock bindings
2019-04-10 15:59:11 -07:00
Stephen Boyd f14382d7e4 clk: Drop duplicate clk_register() documentation
clk_register() isn't the main way to register a clk anymore. Developers
should use clk_hw_register() instead. Furthermore, this whole chunk of
documentation duplicates what's in the C file, so let's just use that.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-02 15:54:10 -07:00
Stephen Boyd 9f842abde8 Merge tag 'meson-clk-fixes-for-5.1-v2' of https://github.com/BayLibre/clk-meson into clk-fixes
Pull more fixes for meson clocks from Neil Armstrong:
 - clk-pll: fix rate rounding fixing meson8b boot failure
 - vid-pll-div: fix recal_rate warning and return when invalid setting

* tag 'meson-clk-fixes-for-5.1-v2' of https://github.com/BayLibre/clk-meson:
  clk: meson: vid-pll-div: remove warning and return 0 on invalid config
  clk: meson: pll: fix rounding and setting a rate that matches precisely
2019-03-29 15:42:34 -07:00
Stephen Boyd 22cf7c6f8e Merge tag 'meson-clk-fixes-for-5.1' of https://github.com/BayLibre/clk-meson into clk-fixes
Pull a round of fixes for meson clocks from Neil Armstrong:
 - g12a: Fix VPU clock parents and mux mask
 - gxbb: Add CLK_DIVIDER_ROUND_CLOSEST to video decoder clocks

* tag 'meson-clk-fixes-for-5.1' of https://github.com/BayLibre/clk-meson:
  clk: meson-g12a: fix VPU clock parents
  clk: meson: g12a: fix VPU clock muxes mask
  clk: meson-gxbb: round the vdec dividers to closest
2019-03-19 14:30:36 -07:00
Stephen Boyd 5dc7e84268 Merge branch 'clk-parent-rewrite' (early part) into clk-next
* 'clk-parent-rewrite' (early part):
  clk: Move of_clk_*() APIs into clk.c from clkdev.c
  clk: Inform the core about consumer devices
  clk: Introduce of_clk_get_hw_from_clkspec()
  clk: core: clarify the check for runtime PM
  clk: Combine __clk_get() and __clk_create_clk()
2019-03-08 10:35:01 -08:00
Stephen Boyd fea0b0850a Merge branches 'clk-typo', 'clk-json-schema', 'clk-mtk-2712-eco' and 'clk-rockchip' into clk-next
- Convert a few clk bindings to JSON schema format
 - 3rd ECO fix for Mediatek MT2712 SoCs

* clk-typo:
  clk: samsung: fix typo

* clk-json-schema:
  dt-bindings: clock: Convert fixed-factor-clock to json-schema
  dt-bindings: clock: Convert fixed-clock binding to json-schema

* clk-mtk-2712-eco:
  clk: mediatek: update clock driver of MT2712
  dt-bindings: clock: add clock for MT2712

* clk-rockchip:
  clk: rockchip: add CLK_SET_RATE_PARENT for rk3066 lcdc dclks
  clk: rockchip: fix frac settings of GPLL clock for rk3328
2019-03-08 10:34:22 -08:00
Stephen Boyd bd5e2ea291 Merge branch 'clk-at91' into clk-next
* clk-at91:
  clk: at91: programmable: remove unneeded register read
  clk: at91: optimize clk_round_rate() for AUDIO_PLL
  clk: at91: enable AUDIOPLL as source for PCKx on SAMA5D2
2019-03-08 10:29:47 -08:00
Stephen Boyd efb1e0b071 Merge branches 'clk-ingenic', 'clk-mtk-mux', 'clk-qcom-sdm845-pcie', 'clk-mtk-crit' and 'clk-mtk' into clk-next
* clk-ingenic:
  clk: ingenic: Remove set but not used variable 'enable'
  clk: ingenic: Fix doc of ingenic_cgu_div_info
  clk: ingenic: Fix round_rate misbehaving with non-integer dividers
  clk: ingenic: jz4740: Fix gating of UDC clock

* clk-mtk-mux:
  clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
  clk: mediatek: add MUX_GATE_FLAGS_2

* clk-qcom-sdm845-pcie:
  clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks

* clk-mtk-crit:
  clk: mediatek: Mark bus and DRAM related clocks as critical
  clk: mediatek: Add flags to mtk_gate
  clk: mediatek: Add MUX_FLAGS macro

* clk-mtk:
  clk: mediatek: correct cpu clock name for MT8173 SoC
2019-03-08 10:29:30 -08:00