Merge "ASoC: msm: Add changes for TDM mic mute GPIO" (4a3c3e68) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/devicetree/bindings/sound/qcom-audio-dev.txt

+3 −0

Original line number	Diff line number	Diff line
		@@ -2191,6 +2191,9 @@ Optional properties:
		- qcom,tdm-i2s-switch-enable: For chipsets where tdm mics are controlled by
		switch, drive corresponding gpio to output high
		to enable switch.
		- qcom,tdm-mic-mute-enable: This property is used to mute/unmute TDM mics using
		gpio, drive corresponding gpio to output low
		to unmute TDM mics.

		Example:
		sound {

+19 −0

Original line number	Diff line number	Diff line
		@@ -2804,6 +2804,7 @@ static int apq8009_asoc_machine_probe(struct platform_device *pdev)
		const char *mclk = "qcom,msm-mclk-freq";
		const char *type = NULL;
		int ret, id;
		int tdm_mic_mute_enable = -EINVAL;

		pdata = devm_kzalloc(&pdev->dev,
		sizeof(struct apq8009_asoc_mach_data), GFP_KERNEL);
		@@ -2917,6 +2918,24 @@ static int apq8009_asoc_machine_probe(struct platform_device *pdev)
		"qcom,tdm-i2s-switch-enable",
		pdev->dev.of_node->full_name);

		tdm_mic_mute_enable = of_get_named_gpio(pdev->dev.of_node,
		"qcom,tdm-mic-mute-enable", 0);
		if (tdm_mic_mute_enable >= 0) {
		dev_dbg(&pdev->dev, "%s: tdm mic mute gpio %d\n", __func__,
		tdm_mic_mute_enable);
		ret = gpio_request(tdm_mic_mute_enable, "TDM_MIC");
		if (ret) {
		pr_err("%s: Failed to request gpio\n", __func__);
		goto err;
		}
		/* Pull down GPIO to unmute TDM mics */
		gpio_direction_output(tdm_mic_mute_enable, 0);
		} else {
		dev_err(&pdev->dev, "Looking up %s property in node %s failed\n",
		"qcom,tdm-mic-mute-enable",
		pdev->dev.of_node->full_name);
		}

		return 0;
		err:
		if (pdata->vaddr_gpio_mux_spkr_ctl)