Linux-ARM-MSM Archive on lore.kernel.org
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From: Rohit kumar <rohitkr@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,
	linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Rohit kumar <rohitkr@codeaurora.org>
Subject: [PATCH v6 06/12] ASoC: qcom: lpass-cpu: fix concurrency issue
Date: Fri, 14 Aug 2020 16:23:02 +0530
Message-ID: <1597402388-14112-7-git-send-email-rohitkr@codeaurora.org> (raw)
In-Reply-To: <1597402388-14112-1-git-send-email-rohitkr@codeaurora.org>

i2sctl register value is set to 0 during hw_free(). This
impacts any ongoing concurrent session on the same i2s
port. As trigger() stop already resets enable bit to 0,
there is no need of explicit hw_free. Removing it to
fix the issue.

Fixes: 80beab8e1d86 ("ASoC: qcom: Add LPASS CPU DAI driver")
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/qcom/lpass-cpu.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index 6b86f16..5d84f63 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -266,21 +266,6 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int lpass_cpu_daiops_hw_free(struct snd_pcm_substream *substream,
-		struct snd_soc_dai *dai)
-{
-	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
-	int ret;
-
-	ret = regmap_write(drvdata->lpaif_map,
-			   LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
-			   0);
-	if (ret)
-		dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
-
-	return ret;
-}
-
 static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
@@ -350,7 +335,6 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
 	.startup	= lpass_cpu_daiops_startup,
 	.shutdown	= lpass_cpu_daiops_shutdown,
 	.hw_params	= lpass_cpu_daiops_hw_params,
-	.hw_free	= lpass_cpu_daiops_hw_free,
 	.prepare	= lpass_cpu_daiops_prepare,
 	.trigger	= lpass_cpu_daiops_trigger,
 };
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.


  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-14 10:52 [PATCH v6 00/12] ASoC: qcom: Add support for SC7180 lpass variant Rohit kumar
2020-08-14 10:52 ` [PATCH v6 01/12] ASoC: qcom: Add common array to initialize soc based core clocks Rohit kumar
2020-08-14 10:52 ` [PATCH v6 02/12] ASoC: qcom: lpass-cpu: Move ahbix clk to platform specific function Rohit kumar
2020-08-14 10:52 ` [PATCH v6 03/12] ASoC: qcom: lpass-platform: Replace card->dev with component->dev Rohit kumar
2020-08-14 10:53 ` [PATCH v6 04/12] ASoC: qcom: lpass-platform: fix memory leak Rohit kumar
2020-08-14 10:53 ` [PATCH v6 05/12] ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers Rohit kumar
2020-08-14 10:53 ` Rohit kumar [this message]
2020-08-14 10:53 ` [PATCH v6 07/12] dt-bindings: sound: lpass-cpu: Add sc7180 lpass cpu node Rohit kumar
2020-08-17 20:35   ` Rob Herring
2020-08-14 10:53 ` [PATCH v6 08/12] include: dt-bindings: sound: Add sc7180-lpass bindings header Rohit kumar
2020-08-14 10:53 ` [PATCH v6 09/12] ASoC: qcom: lpass-sc7180: Add platform driver for lpass audio Rohit kumar
2020-08-14 10:53 ` [PATCH v6 10/12] ASoC: qcom: lpass-cpu: Use platform_get_resource Rohit kumar
2020-08-14 10:53 ` [PATCH v6 11/12] ASoC: qcom: lpass-platform: Use platform_get_irq Rohit kumar
2020-08-14 10:53 ` [PATCH v6 12/12] dt-bindings: sound: lpass-cpu: Move to yaml format Rohit kumar
2020-08-17 20:45   ` Rob Herring
2020-08-18 16:53 ` [PATCH v6 00/12] ASoC: qcom: Add support for SC7180 lpass variant Mark Brown

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