soundwire: qcom: do not send status of device 0 during alert

Device0 can not be in alert status. And for consistency reasons do not
send status of device0 to 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/20220916135352.19114-2-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index c331e2d..ba3c2ce 100644 (file)
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -420,7 +420,7 @@ static int qcom_swrm_get_alert_slave_dev_num(struct qcom_swrm_ctrl *ctrl)
 
        ctrl->reg_read(ctrl, SWRM_MCP_SLV_STATUS, &val);
 
-       for (dev_num = 0; dev_num < SDW_MAX_DEVICES; dev_num++) {
+       for (dev_num = 1; dev_num <= SDW_MAX_DEVICES; dev_num++) {
                status = (val >> (dev_num * SWRM_MCP_SLV_STATUS_SZ));
 
                if ((status & SWRM_MCP_SLV_STATUS_MASK) == SDW_SLAVE_ALERT) {