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[173.175.113.3]) by smtp.gmail.com with ESMTPSA id i1sm9854541ool.43.2020.11.30.08.26.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Nov 2020 08:26:33 -0800 (PST) Subject: Re: [PATCH v4 2/2] ASoC: qcom: Add support for playback recover after resume To: Srinivasa Rao Mandadapu , agross@kernel.org, bjorn.andersson@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, plai@codeaurora.org, bgoswami@codeaurora.org, perex@perex.cz, tiwai@suse.com, srinivas.kandagatla@linaro.org, rohitkr@codeaurora.org, linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: V Sujith Kumar Reddy References: <1606539559-4277-1-git-send-email-srivasam@codeaurora.org> <1606539559-4277-3-git-send-email-srivasam@codeaurora.org> From: Steev Klimaszewski Message-ID: <938cb2c1-daed-e322-ca8a-06b54ebb35ff@kali.org> Date: Mon, 30 Nov 2020 10:26:31 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:78.0) Gecko/20100101 Thunderbird/78.4.3 MIME-Version: 1.0 In-Reply-To: <1606539559-4277-3-git-send-email-srivasam@codeaurora.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 11/27/20 10:59 PM, 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 > Signed-off-by: Srinivasa Rao Mandadapu > --- > 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, > > }; > Tested this series on a Lenovo Yoga C630 Tested-by: Steev Klimaszewski