dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

soundwire: generic_bandwidth_allocation: check required freq accurately

Browse Source 
Currently, we check curr_dr_freq roughly by "if (curr_dr_freq <=
bus->params.bandwidth)" in sdw_compute_bus_params() and check it
accurately in sdw_select_row_col(). It works if we only support one
freq. But, we need to check it accurately in sdw_select_row_col() to
give it a chance to use a higher freq or use multi-lane.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-11-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Bard Liao
2024-12-23 12:00:33 +05:30
committed by Vinod Koul
parent cf44ae3d32
commit 4a7927d54d
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/soundwire/generic_bandwidth_allocation.c
+2 -1
View File
@@ -373,7 +373,8 @@ static int sdw_compute_bus_params(struct sdw_bus *bus)
(bus->params.max_dr_freq >> clk_buf[i]) :
clk_buf[i] * SDW_DOUBLE_RATE_FACTOR;
if (curr_dr_freq <= bus->params.bandwidth)
if (curr_dr_freq * (mstr_prop->default_col - 1) <
bus->params.bandwidth * mstr_prop->default_col)
continue;
break;