Merge "ASoC: msm8996: overwrite pmqos request for low latency playback" (09d35065) · Commits · e / devices / android_kernel_xiaomi_markw

sound/soc/msm/msm8996.c

+27 −0

Original line number	Diff line number	Diff line
		@@ -1968,6 +1968,32 @@ static struct snd_soc_ops msm8996_slimbus_2_be_ops = {
		.hw_params = msm8996_slimbus_2_hw_params,
		};

		static int msm8996_get_ll_qos_val(struct snd_pcm_runtime *runtime)
		{
		int usecs;

		/* take 10% of period time as the deadline */
		usecs = (100000 / runtime->rate) * runtime->period_size;
		usecs += ((100000 % runtime->rate) * runtime->period_size) /
		runtime->rate;

		return usecs;
		}

		static int msm8996_mm5_prepare(struct snd_pcm_substream *substream)
		{
		if (pm_qos_request_active(&substream->latency_pm_qos_req))
		pm_qos_remove_request(&substream->latency_pm_qos_req);
		pm_qos_add_request(&substream->latency_pm_qos_req,
		PM_QOS_CPU_DMA_LATENCY,
		msm8996_get_ll_qos_val(substream->runtime));
		return 0;
		}

		static struct snd_soc_ops msm8996_mm5_ops = {
		.prepare = msm8996_mm5_prepare,
		};

		/* Digital audio interface glue - connects codec <---> CPU */
		static struct snd_soc_dai_link msm8996_common_dai_links[] = {
		/* FrontEnd DAI Links */
		@@ -2231,6 +2257,7 @@ static struct snd_soc_dai_link msm8996_common_dai_links[] = {
		/* this dainlink has playback support */
		.ignore_pmdown_time = 1,
		.be_id = MSM_FRONTEND_DAI_MULTIMEDIA5,
		.ops = &msm8996_mm5_ops,
		},
		{
		.name = "Listen 1 Audio Service",