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Tue, 4 Aug 2020 08:08:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 86B44C433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=rohitkr@codeaurora.org From: Rohit kumar 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 Subject: [PATCH v5 06/12] ASoC: qcom: lpass-cpu: fix concurrency issue Date: Tue, 4 Aug 2020 13:37:27 +0530 Message-Id: <1596528453-11437-7-git-send-email-rohitkr@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1596528453-11437-1-git-send-email-rohitkr@codeaurora.org> References: <1596528453-11437-1-git-send-email-rohitkr@codeaurora.org> Cc: Rohit kumar X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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 Reviewed-by: Srinivas Kandagatla --- 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, };