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

soundwire: intel: set dev_num_ida_min

Browse Source 
The allowed values for SoundWire device numbers are between 1 and 11
(inclusive). HDaudio/iDISP codecs typically use SDI values 0..3
(inclusive). To allow for a unique peripheral SDI/dev_number across
HDaudio and SoundWire buses, we set the minimum base to 4. This still
allows for 8 SoundWire peripherals in the system, currently more than
needed in actual products.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220823045004.2670658-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2022-08-23 12:50:04 +08:00 committed by Vinod Koul
parent c605610142
commit 1f2dcf3a15
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/soundwire/intel.c
View File

@ -22,6 +22,9 @@
#include "bus.h" #include "bus.h"
#include "intel.h" #include "intel.h"
/* IDA min selected to avoid conflicts with HDaudio/iDISP SDI values */
#define INTEL_DEV_NUM_IDA_MIN 4
#define INTEL_MASTER_SUSPEND_DELAY_MS 3000 #define INTEL_MASTER_SUSPEND_DELAY_MS 3000
#define INTEL_MASTER_RESET_ITERATIONS 10 #define INTEL_MASTER_RESET_ITERATIONS 10
@ -1307,6 +1310,7 @@ static int intel_link_probe(struct auxiliary_device *auxdev,
cdns->msg_count = 0; cdns->msg_count = 0;
bus->link_id = auxdev->id; bus->link_id = auxdev->id;
bus->dev_num_ida_min = INTEL_DEV_NUM_IDA_MIN;
sdw_cdns_probe(cdns); sdw_cdns_probe(cdns);