From: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
To: 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: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>,
V Sujith Kumar Reddy <vsujithk@codeaurora.org>
Subject: [PATCH v4 2/2] ASoC: qcom: Add support for playback recover after resume
Date: Sat, 28 Nov 2020 10:29:19 +0530 [thread overview]
Message-ID: <1606539559-4277-3-git-send-email-srivasam@codeaurora.org> (raw)
In-Reply-To: <1606539559-4277-1-git-send-email-srivasam@codeaurora.org>
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@codeaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.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,
};
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2020-11-28 17:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-28 4:59 [PATCH v4 0/2] Platform driver update to support playback recover after resume Srinivasa Rao Mandadapu
2020-11-28 4:59 ` [PATCH v4 1/2] Partially revert ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state Srinivasa Rao Mandadapu
2020-11-30 11:09 ` Srinivas Kandagatla
2020-11-30 12:46 ` Mark Brown
2020-12-01 17:31 ` Srinivasa Rao Mandadapu
2020-12-01 17:51 ` Mark Brown
2020-12-14 12:43 ` Srinivasa Rao Mandadapu
2020-12-14 17:50 ` Mark Brown
2020-12-17 8:14 ` Srinivasa Rao Mandadapu
2020-12-17 8:18 ` Srinivasa Rao Mandadapu
2020-11-28 4:59 ` Srinivasa Rao Mandadapu [this message]
2020-11-30 11:19 ` [PATCH v4 2/2] ASoC: qcom: Add support for playback recover after resume Srinivas Kandagatla
2020-11-30 16:26 ` Steev Klimaszewski
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