Commit 4a7927d5 authored by Bard Liao's avatar Bard Liao Committed by Vinod Koul
Browse files

soundwire: generic_bandwidth_allocation: check required freq accurately 



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: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-11-yung-chuan.liao@linux.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent cf44ae3d

drivers/soundwire/generic_bandwidth_allocation.c

+2 −1
Original line number Diff line number Diff line
@@ -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;