linux-kernel - [PATCH v2 2/2] soundwire: qcom: do not send status of device 0 during alert

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Message-Id: <20220916135352.19114-2-srinivas.kandagatla@linaro.org>
Date:   Fri, 16 Sep 2022 14:53:52 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     vkoul@...nel.org
Cc:     yung-chuan.liao@...ux.intel.com,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, quic_srivasam@...cinc.com,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v2 2/2] soundwire: qcom: do not send status of device 0 during alert

Device0 can not be in alter status. And for consistency reasons do not
send status of device0 to core.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/soundwire/qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index d3ce580cdeaf..a04a8863b228 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -428,7 +428,7 @@ 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) {
-- 
2.21.0