Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine updates from Vinod Koul:
 "Once you have some time from extended weekend celebrations please
  consider pulling the following to get:
   - Various fixes and PCI driver for dw_dmac by Andy
   - DT binding for imx-dma by Markus & imx-sdma by Shawn
   - DT fixes for dmaengine by Lars
   - jz4740 dmac driver by Lars
   - and various fixes across the drivers"

What "extended weekend celebrations"?  I'm in the merge window, who has
time for extended celebrations..

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits)
  DMA: shdma: add DT support
  DMA: shdma: shdma_chan_filter() has to be in shdma-base.h
  DMA: shdma: (cosmetic) don't re-calculate a pointer
  dmaengine: at_hdmac: prepare clk before calling enable
  dmaengine/trivial: at_hdmac: add curly brackets to if/else expressions
  dmaengine: at_hdmac: remove unsuded atc_cleanup_descriptors()
  dmaengine: at_hdmac: add FIFO configuration parameter to DMA DT binding
  ARM: at91: dt: add header to define at_hdmac configuration
  MIPS: jz4740: Correct clock gate bit for DMA controller
  MIPS: jz4740: Remove custom DMA API
  MIPS: jz4740: Register jz4740 DMA device
  dma: Add a jz4740 dmaengine driver
  MIPS: jz4740: Acquire and enable DMA controller clock
  dma: mmp_tdma: disable irq when disabling dma channel
  dmaengine: PL08x: Avoid collisions with get_signal() macro
  dmaengine: dw: select DW_DMAC_BIG_ENDIAN_IO automagically
  dma: dw: add PCI part of the driver
  dma: dw: split driver to library part and platform code
  dma: move dw_dmac driver to an own directory
  dw_dmac: don't check resource with devm_ioremap_resource
  ...

include/linux/amba/pl08x.h

@@ -76,11 +76,11 @@ struct pl08x_channel_data {
  * platform, all inclusive, including multiplexed channels. The available
  * physical channels will be multiplexed around these signals as they are
  * requested, just enumerate all possible channels.
- * @get_signal: request a physical signal to be used for a DMA transfer
+ * @get_xfer_signal: request a physical signal to be used for a DMA transfer
  * immediately: if there is some multiplexing or similar blocking the use
  * of the channel the transfer can be denied by returning less than zero,
  * else it returns the allocated signal number
- * @put_signal: indicate to the platform that this physical signal is not
+ * @put_xfer_signal: indicate to the platform that this physical signal is not
  * running any DMA transfer and multiplexing can be recycled
  * @lli_buses: buses which LLIs can be fetched from: PL08X_AHB1 | PL08X_AHB2
  * @mem_buses: buses which memory can be accessed from: PL08X_AHB1 | PL08X_AHB2
@@ -89,8 +89,8 @@ struct pl08x_platform_data {
 	const struct pl08x_channel_data *slave_channels;
 	unsigned int num_slave_channels;
 	struct pl08x_channel_data memcpy_channel;
-	int (*get_signal)(const struct pl08x_channel_data *);
-	void (*put_signal)(const struct pl08x_channel_data *, int);
+	int (*get_xfer_signal)(const struct pl08x_channel_data *);
+	void (*put_xfer_signal)(const struct pl08x_channel_data *, int);
 	u8 lli_buses;
 	u8 mem_buses;
 };

include/linux/of_dma.h

@@ -21,7 +21,6 @@ struct device_node;
 struct of_dma {
 	struct list_head	of_dma_controllers;
 	struct device_node	*of_node;
-	int			of_dma_nbcells;
 	struct dma_chan		*(*of_dma_xlate)
 				(struct of_phandle_args *, struct of_dma *);
 	void			*of_dma_data;

include/linux/platform_data/dma-atmel.h

@@ -35,16 +35,20 @@ struct at_dma_slave {
 
 
 /* Platform-configurable bits in CFG */
+#define ATC_PER_MSB(h)	((0x30U & (h)) >> 4)	/* Extract most significant bits of a handshaking identifier */
+
 #define	ATC_SRC_PER(h)		(0xFU & (h))	/* Channel src rq associated with periph handshaking ifc h */
 #define	ATC_DST_PER(h)		((0xFU & (h)) <<  4)	/* Channel dst rq associated with periph handshaking ifc h */
 #define	ATC_SRC_REP		(0x1 <<  8)	/* Source Replay Mod */
 #define	ATC_SRC_H2SEL		(0x1 <<  9)	/* Source Handshaking Mod */
 #define		ATC_SRC_H2SEL_SW	(0x0 <<  9)
 #define		ATC_SRC_H2SEL_HW	(0x1 <<  9)
+#define	ATC_SRC_PER_MSB(h)	(ATC_PER_MSB(h) << 10)	/* Channel src rq (most significant bits) */
 #define	ATC_DST_REP		(0x1 << 12)	/* Destination Replay Mod */
 #define	ATC_DST_H2SEL		(0x1 << 13)	/* Destination Handshaking Mod */
 #define		ATC_DST_H2SEL_SW	(0x0 << 13)
 #define		ATC_DST_H2SEL_HW	(0x1 << 13)
+#define	ATC_DST_PER_MSB(h)	(ATC_PER_MSB(h) << 14)	/* Channel dst rq (most significant bits) */
 #define	ATC_SOD			(0x1 << 16)	/* Stop On Done */
 #define	ATC_LOCK_IF		(0x1 << 20)	/* Interface Lock */
 #define	ATC_LOCK_B		(0x1 << 21)	/* AHB Bus Lock */

include/linux/platform_data/dma-imx.h

@@ -60,10 +60,8 @@ static inline int imx_dma_is_ipu(struct dma_chan *chan)
 
 static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
 {
-	return strstr(dev_name(chan->device->dev), "sdma") ||
-		!strcmp(dev_name(chan->device->dev), "imx1-dma") ||
-		!strcmp(dev_name(chan->device->dev), "imx21-dma") ||
-		!strcmp(dev_name(chan->device->dev), "imx27-dma");
+	return !strcmp(chan->device->dev->driver->name, "imx-sdma") ||
+		!strcmp(chan->device->dev->driver->name, "imx-dma");
 }
 
 #endif

include/linux/sh_dma.h

@@ -99,6 +99,4 @@ struct sh_dmae_pdata {
 #define CHCR_TE	0x00000002
 #define CHCR_IE	0x00000004
 
-bool shdma_chan_filter(struct dma_chan *chan, void *arg);
-
 #endif

include/linux/shdma-base.h

@@ -68,6 +68,8 @@ struct shdma_chan {
 	int id;				/* Raw id of this channel */
 	int irq;			/* Channel IRQ */
 	int slave_id;			/* Client ID for slave DMA */
+	int hw_req;			/* DMA request line for slave DMA - same
+					 * as MID/RID, used with DT */
 	enum shdma_pm_state pm_state;
 };
 
@@ -122,5 +124,6 @@ void shdma_chan_remove(struct shdma_chan *schan);
 int shdma_init(struct device *dev, struct shdma_dev *sdev,
 		    int chan_num);
 void shdma_cleanup(struct shdma_dev *sdev);
+bool shdma_chan_filter(struct dma_chan *chan, void *arg);
 
 #endif