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Message-ID: <76b8d52f-4f54-734f-683a-72fe62fdd8e4@linaro.org>
Date: Mon, 30 Nov 2020 11:19:13 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
rohitkr@...eaurora.org, linux-arm-msm@...r.kernel.org,
alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: V Sujith Kumar Reddy <vsujithk@...eaurora.org>
Subject: Re: [PATCH v4 2/2] ASoC: qcom: Add support for playback recover after
resume
On 28/11/2020 04:59, Srinivasa Rao Mandadapu wrote:
> To support playback continuation after hard suspend(bypass powerd)
> and resume add component driver ops and do regcache sync.
>
> Signed-off-by: V Sujith Kumar Reddy <vsujithk@...eaurora.org>
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
LGTM,
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
> sound/soc/qcom/lpass-platform.c | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
> index 0e71899..12764a8 100644
> --- a/sound/soc/qcom/lpass-platform.c
> +++ b/sound/soc/qcom/lpass-platform.c
> @@ -827,6 +827,39 @@ static void lpass_platform_pcm_free(struct snd_soc_component *component,
> }
> }
>
> +static int lpass_platform_pcmops_suspend(struct snd_soc_component *component)
> +{
> + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
> + struct regmap *map;
> + unsigned int dai_id = component->id;
> +
> + if (dai_id == LPASS_DP_RX)
> + map = drvdata->hdmiif_map;
> + else
> + map = drvdata->lpaif_map;
> +
> + regcache_cache_only(map, true);
> + regcache_mark_dirty(map);
> +
> + return 0;
> +}
> +
> +static int lpass_platform_pcmops_resume(struct snd_soc_component *component)
> +{
> + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
> + struct regmap *map;
> + unsigned int dai_id = component->id;
> +
> + if (dai_id == LPASS_DP_RX)
> + map = drvdata->hdmiif_map;
> + else
> + map = drvdata->lpaif_map;
> +
> + regcache_cache_only(map, false);
> + return regcache_sync(map);
> +}
> +
> +
> static const struct snd_soc_component_driver lpass_component_driver = {
> .name = DRV_NAME,
> .open = lpass_platform_pcmops_open,
> @@ -839,6 +872,8 @@ static const struct snd_soc_component_driver lpass_component_driver = {
> .mmap = lpass_platform_pcmops_mmap,
> .pcm_construct = lpass_platform_pcm_new,
> .pcm_destruct = lpass_platform_pcm_free,
> + .suspend = lpass_platform_pcmops_suspend,
> + .resume = lpass_platform_pcmops_resume,
>
> };
>
>
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