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

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Date:   Fri, 16 Sep 2022 16:22:03 +0200
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        vkoul@...nel.org
Cc:     alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, sanyog.r.kale@...el.com,
        yung-chuan.liao@...ux.intel.com, quic_srivasam@...cinc.com
Subject: Re: [PATCH v2 2/2] soundwire: qcom: do not send status of device 0
 during alert



On 9/16/22 15:53, Srinivas Kandagatla wrote:
> Device0 can not be in alter status. And for consistency reasons do not

typo: alert

> send status of device0 to core.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

> ---
>  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) {