Merge "asoc: codecs: wcd938x: add support for micbias pull up mode" (89924096) · Commits · e / devices / android_kernel_fairphone_FP4

asoc/codecs/wcd938x/wcd938x.c

+64 −0

Original line number	Diff line number	Diff line
		@@ -1779,6 +1779,52 @@ static int wcd938x_codec_enable_micbias(struct snd_soc_dapm_widget *w,
		return __wcd938x_codec_enable_micbias(w, event);
		}

		static int __wcd938x_codec_enable_micbias_pullup(struct snd_soc_dapm_widget *w,
		int event)
		{
		struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
		int micb_num;

		dev_dbg(component->dev, "%s: wname: %s, event: %d\n",
		__func__, w->name, event);

		if (strnstr(w->name, "VA MIC BIAS1", sizeof("VA MIC BIAS1")))
		micb_num = MIC_BIAS_1;
		else if (strnstr(w->name, "VA MIC BIAS2", sizeof("VA MIC BIAS2")))
		micb_num = MIC_BIAS_2;
		else if (strnstr(w->name, "VA MIC BIAS3", sizeof("VA MIC BIAS3")))
		micb_num = MIC_BIAS_3;
		else if (strnstr(w->name, "VA MIC BIAS4", sizeof("VA MIC BIAS4")))
		micb_num = MIC_BIAS_4;
		else
		return -EINVAL;

		switch (event) {
		case SND_SOC_DAPM_PRE_PMU:
		wcd938x_micbias_control(component, micb_num,
		MICB_PULLUP_ENABLE, true);
		break;
		case SND_SOC_DAPM_POST_PMU:
		/* 1 msec delay as per HW requirement */
		usleep_range(1000, 1100);
		break;
		case SND_SOC_DAPM_POST_PMD:
		wcd938x_micbias_control(component, micb_num,
		MICB_PULLUP_DISABLE, true);
		break;
		};

		return 0;

		}

		static int wcd938x_codec_enable_micbias_pullup(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *kcontrol,
		int event)
		{
		return __wcd938x_codec_enable_micbias_pullup(w, event);
		}

		static inline int wcd938x_tx_path_get(const char *wname,
		unsigned int *path_num)
		{
		@@ -2364,6 +2410,24 @@ static const struct snd_soc_dapm_widget wcd938x_dapm_widgets[] = {
		SND_SOC_DAPM_OUTPUT("AUX"),
		SND_SOC_DAPM_OUTPUT("HPHL"),
		SND_SOC_DAPM_OUTPUT("HPHR"),

		/* micbias pull up widgets*/
		SND_SOC_DAPM_MICBIAS_E("VA MIC BIAS1", SND_SOC_NOPM, 0, 0,
		wcd938x_codec_enable_micbias_pullup,
		SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMU \|
		SND_SOC_DAPM_POST_PMD),
		SND_SOC_DAPM_MICBIAS_E("VA MIC BIAS2", SND_SOC_NOPM, 0, 0,
		wcd938x_codec_enable_micbias_pullup,
		SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMU \|
		SND_SOC_DAPM_POST_PMD),
		SND_SOC_DAPM_MICBIAS_E("VA MIC BIAS3", SND_SOC_NOPM, 0, 0,
		wcd938x_codec_enable_micbias_pullup,
		SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMU \|
		SND_SOC_DAPM_POST_PMD),
		SND_SOC_DAPM_MICBIAS_E("VA MIC BIAS4", SND_SOC_NOPM, 0, 0,
		wcd938x_codec_enable_micbias_pullup,
		SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMU \|
		SND_SOC_DAPM_POST_PMD),
		};

		static const struct snd_soc_dapm_route wcd938x_audio_map[] = {