linux-kernel - Re: [PATCH v1 1/1] soundwire: qcom: disable stop clock on 1.3.0 and below

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Date: Fri, 19 Apr 2024 00:46:50 -0500
From: Steev Klimaszewski <steev@...i.org>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: Anton Bambura <jenneron@...tmarketos.org>, Andy Gross <agross@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Vinod Koul <vkoul@...nel.org>, Bard Liao <yung-chuan.liao@...ux.intel.com>, 
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>, 
	Sanyog Kale <sanyog.r.kale@...el.com>, linux-arm-msm@...r.kernel.org, 
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] soundwire: qcom: disable stop clock on 1.3.0 and below

Hi Srini,

On Wed, Apr 17, 2024 at 6:43 AM Srinivas Kandagatla
<srinivas.kandagatla@...aro.org> wrote:
>
> This is not the right fix, this can be determined from codec
> clk_stop_mode1 flag.
>
> can you try this patch:
>
> ----------------------------->cut<-----------------------------
> From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Date: Wed, 17 Apr 2024 12:38:49 +0100
> Subject: [PATCH] ASoC: codecs: wsa881x: set clk_stop_mode1 flag
>
> WSA881x codecs do not retain the state while clock is stopped, so mark
> this with clk_stop_mode1 flag.
>
> Fixes: a0aab9e1404a ("ASoC: codecs: add wsa881x amplifier support")
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>   sound/soc/codecs/wsa881x.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
> index 3c025dabaf7a..1253695bebd8 100644
> --- a/sound/soc/codecs/wsa881x.c
> +++ b/sound/soc/codecs/wsa881x.c
> @@ -1155,6 +1155,7 @@ static int wsa881x_probe(struct sdw_slave *pdev,
>         pdev->prop.sink_ports = GENMASK(WSA881X_MAX_SWR_PORTS, 0);
>         pdev->prop.sink_dpn_prop = wsa_sink_dpn_prop;
>         pdev->prop.scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
> +       pdev->prop.clk_stop_mode1 = true;
>         gpiod_direction_output(wsa881x->sd_n, !wsa881x->sd_n_val);
>
>         wsa881x->regmap = devm_regmap_init_sdw(pdev, &wsa881x_regmap_config);
> --
> 2.21.0
> ----------------------------->cut<-----------------------------
>
>
> thanks,
> Srini
>
> >               if (!found) {
> >                       qcom_swrm_set_slave_dev_num(bus, NULL, i);
> >                       sdw_slave_add(bus, &id, NULL);
>

I tested it here on my c630 and can confirm that your patch does fix
the audio as well.