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 v2] Asoc: qcom: Fix plaback recover problem in suspend resume
Date: Fri, 27 Nov 2020 14:30:21 +0530 [thread overview]
Message-ID: <1606467622-11735-1-git-send-email-srivasam@codeaurora.org> (raw)
To support playback continuation after hard suspend(bypass powerd)
and resume:
Prepare device in platform trigger callback.
Make I2s and DMA control registers as non volatile.
Signed-off-by: V Sujith Kumar Reddy <vsujithk@codeaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
---
Changes Since v1:
-- Subject lines changed
sound/soc/qcom/lpass-cpu.c | 8 ++------
sound/soc/qcom/lpass-platform.c | 5 +++--
2 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index af684fd..c99be03 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -454,20 +454,16 @@ static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg)
struct lpass_variant *v = drvdata->variant;
int i;
- for (i = 0; i < v->i2s_ports; ++i)
- if (reg == LPAIF_I2SCTL_REG(v, i))
- return true;
for (i = 0; i < v->irq_ports; ++i)
if (reg == LPAIF_IRQSTAT_REG(v, i))
return true;
for (i = 0; i < v->rdma_channels; ++i)
- if (reg == LPAIF_RDMACURR_REG(v, i) || reg == LPAIF_RDMACTL_REG(v, i))
+ if (reg == LPAIF_RDMACURR_REG(v, i))
return true;
for (i = 0; i < v->wrdma_channels; ++i)
- if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start) ||
- reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start))
+ if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start))
return true;
return false;
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index 80b09de..2b0a7c1 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -481,8 +481,9 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
return -ENOTRECOVERABLE;
}
switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
+ lpass_platform_pcmops_prepare(component, substream);
+ case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = regmap_fields_write(dmactl->enable, id,
LPAIF_DMACTL_ENABLE_ON);
@@ -592,7 +593,7 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
break;
}
- return 0;
+ return ret;
}
static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
reply other threads:[~2020-11-27 9:01 UTC|newest]
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