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Subject[PATCH 3/3] soundwire: intel: set dev_num_ida_min
Date
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

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>
---
drivers/soundwire/intel.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 95ce292994cc..85d4268eea65 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -22,6 +22,9 @@
#include "bus.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_RESET_ITERATIONS 10

@@ -1297,6 +1300,7 @@ static int intel_link_probe(struct auxiliary_device *auxdev,
cdns->msg_count = 0;

bus->link_id = auxdev->id;
+ bus->dev_num_ida_min = INTEL_DEV_NUM_IDA_MIN;

sdw_cdns_probe(cdns);

--
2.25.1
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