linux-kernel - Re: [PATCH 04/16] soundwire: cadence: handle error cases with CONFIG

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Message-ID: <20200313120855.GF4885@vkoul-mobl>
Date:   Fri, 13 Mar 2020 17:38:55 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        tiwai@...e.de, broonie@...nel.org, gregkh@...uxfoundation.org,
        jank@...ence.com, srinivas.kandagatla@...aro.org,
        slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Hui Wang <hui.wang@...onical.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: Re: [PATCH 04/16] soundwire: cadence: handle error cases with
 CONFIG_UPDATE

On 11-03-20, 13:41, Pierre-Louis Bossart wrote:
> config_update() may time out or cannot be use in ClockStopMode
> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> ---
>  drivers/soundwire/cadence_master.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
> index 71cba2585151..4089c271305a 100644
> --- a/drivers/soundwire/cadence_master.c
> +++ b/drivers/soundwire/cadence_master.c
> @@ -239,6 +239,11 @@ static int cdns_config_update(struct sdw_cdns *cdns)
>  {
>  	int ret;
>  
> +	if (sdw_cdns_is_clock_stop(cdns)) {
> +		dev_err(cdns->dev, "Cannot program MCP_CONFIG_UPDATE in ClockStopMode\n");

This looks fine but duplicates the log, so maybe you can remove from
here or preceding patch... Or use single line as I suggested in that
patch and keep this as is.

-- 
~Vinod