diff options
author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2022-09-16 14:53:51 +0100 |
---|---|---|
committer | Vinod Koul <vkoul@kernel.org> | 2022-09-20 10:33:13 +0530 |
commit | 8039b6f3e5c777e41df34f8e996af18555a4f303 (patch) | |
tree | c2406771ea966934860f00df3f3f5f4bb47aee82 /drivers/soundwire | |
parent | ba05b39d265bdd16913f7684600d9d41e2796745 (diff) | |
download | linux-8039b6f3e5c777e41df34f8e996af18555a4f303.tar.gz |
soundwire: qcom: update status from device id 1
By default autoenumeration is enabled on QCom SoundWire controller which means the core should not be dealing with device 0 w.r.t enumeration. During Enumeration if SoundWire core sees status[0] as SDW_SLAVE_ATTACHED and start programming the device id, however reading DEVID registers return zeros which does not match to any of the slaves in the list and the core attempts to park this device to Group 13. This results in adding SoundWire device with enumeration address 0:0:0:0 Fix this by not passing device 0 status to SoundWire core. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20220916135352.19114-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
-rw-r--r-- | drivers/soundwire/qcom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 976ae75d1126..c331e2db60fd 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -440,7 +440,7 @@ static void qcom_swrm_get_device_status(struct qcom_swrm_ctrl *ctrl) ctrl->reg_read(ctrl, SWRM_MCP_SLV_STATUS, &val); ctrl->slave_status = val; - for (i = 0; i < SDW_MAX_DEVICES; i++) { + for (i = 1; i <= SDW_MAX_DEVICES; i++) { u32 s; s = (val >> (i * 2)); |