soundwire: qcom: Check device status before reading devid
authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Wed, 6 Jul 2022 09:56:44 +0000 (10:56 +0100)
committerVinod Koul <vkoul@kernel.org>
Wed, 6 Jul 2022 16:44:51 +0000 (22:14 +0530)
commitaa1262ca66957183ea1fb32a067e145b995f3744
treefb208cc3459be66d95ebe6117ccde64131bc146a
parent1fd0d85affe4d64e54b81d04bf9577e57172a341
soundwire: qcom: Check device status before reading devid

As per hardware datasheet its recommended that we check the device
status before reading devid assigned by auto-enumeration.

Without this patch we see SoundWire devices with invalid enumeration
addresses on the bus.

Cc: stable@vger.kernel.org
Fixes: a6e6581942ca ("soundwire: qcom: add auto enumeration support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220706095644.5852-1-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/soundwire/qcom.c