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Commit 3b2df3a4 authored by Surendar karka's avatar Surendar karka Committed by Gerrit - the friendly Code Review server
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ASoC: msm: enable TDM mics with gpio controlled 



TDM mics are controlled by switch drive corresponding
gpio to output high to enable switch.

CRs-Fixed: 2164870
Change-Id: I169d5726d43494922aa027fb28c6e9eef7dcf0c5
Signed-off-by: default avatarSurendar karka <sukark@codeaurora.org>
parent dc8eda1d

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

+3 −0
Original line number Diff line number Diff line
@@ -1997,6 +1997,9 @@ Optional properties: 
- qcom,wsa-devs: This property contains list of wsa codec names. The names

		should comply with the wsa nodes configurations.

- qcom,wsa-aux-dev-prefix: This property contains list of wsa codec prefixes.

- qcom,tdm-i2s-switch-enable: For chipsets where tdm mics are controlled by

			      switch, drive corresponding gpio to output high

			      to enable switch.



Example:

	sound {

sound/soc/msm/apq8009-i2s-ext-codec.c

+19 −1
Original line number Diff line number Diff line 
 /* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.

 /* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.

  *

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License version 2 and
@@ -2733,6 +2733,7 @@ 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_i2s_switch_enable = -EINVAL;



	pdata = devm_kzalloc(&pdev->dev,

			sizeof(struct apq8009_asoc_mach_data), GFP_KERNEL);
@@ -2830,6 +2831,23 @@ static int apq8009_asoc_machine_probe(struct platform_device *pdev) 
				ret);

		goto err;

	}



	tdm_i2s_switch_enable = of_get_named_gpio(pdev->dev.of_node,

				"qcom,tdm-i2s-switch-enable", 0);

	if (tdm_i2s_switch_enable >= 0) {

		dev_dbg(&pdev->dev, "%s: tdm switch gpio %d", __func__,

			tdm_i2s_switch_enable);

		ret = gpio_request(tdm_i2s_switch_enable, "TDM_RESET");

		if (ret) {

			pr_err("%s: Failed to request gpio\n", __func__);

			goto err;

		}

		gpio_direction_output(tdm_i2s_switch_enable, 1);

	} else

		dev_err(&pdev->dev, "Looking up %s property in node %s failed\n",

			"qcom,tdm-i2s-switch-enable",

			pdev->dev.of_node->full_name);



	return 0;

err:

	if (pdata->vaddr_gpio_mux_spkr_ctl)