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Commit 669b885a authored by Karthikeyan Mani's avatar Karthikeyan Mani Committed by Gerrit - the friendly Code Review server
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asoc: codecs: Add codec supply to enable mic bias pin 



Add interface to initialize and enable/disable
wcd codec supply.

Change-Id: If2b2a3120f7f0c87dc6ebe1c1e6c9062b7f2891e
Signed-off-by: default avatarKarthikeyan Mani <kmani@codeaurora.org>
parent 823f0f01

asoc/codecs/msm-cdc-supply.c

+70 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 */



#include <linux/kernel.h>
@@ -10,6 +10,7 @@ 
#include <linux/slab.h>

#include <linux/regulator/consumer.h>

#include <asoc/msm-cdc-supply.h>

#include <sound/soc.h>



#define CODEC_DT_MAX_PROP_SIZE 40
@@ -564,3 +565,71 @@ int msm_cdc_get_power_supplies(struct device *dev, 
	return rc;

}

EXPORT_SYMBOL(msm_cdc_get_power_supplies);



/*

 * msm_cdc_init_wcd_supply:

 *	Initialize wcd supply parameters.

 *

 * @np: device node pointer to codec device

 * @name: power supply name

 * @cdc_supply: codec supply struct to hold wcd params

 *

 * Return error code if init failed

 */

int msm_cdc_init_wcd_supply(struct device_node *np, const char *name,

			    struct cdc_wcd_supply *cdc_supply)

{

	struct platform_device *pdev = NULL;



	if (!np || !cdc_supply)

		return -EINVAL;



	pdev = of_find_device_by_node(np);

	if (!pdev)

		return -EINVAL;



	cdc_supply->dev = &pdev->dev;

	cdc_supply->name = name;

	cdc_supply->component = snd_soc_lookup_component(&pdev->dev, NULL);



	return 0;

}

EXPORT_SYMBOL(msm_cdc_init_wcd_supply);



/*

 * msm_cdc_enable_wcd_supply:

 *	Enable/Disable wcd supply.

 *

 * @cdc_supply: codec supply struct to hold wcd params

 * @enable: bool to inform whether to enable or disable

 *

 * Return error code if enable/disable failed

 */

int msm_cdc_enable_wcd_supply(struct cdc_wcd_supply *cdc_supply, bool enable)

{

	struct snd_soc_component *component = cdc_supply->component;

	int rc;



	if (!component) {

		pr_err("%s: Component memory is NULL\n", __func__);

		return -EINVAL;

	}



	if (enable)

		rc = snd_soc_dapm_force_enable_pin(

					snd_soc_component_get_dapm(component),

					cdc_supply->name);

	else

		rc = snd_soc_dapm_disable_pin(

					snd_soc_component_get_dapm(component),

					cdc_supply->name);



	if (!rc)

		snd_soc_dapm_sync(snd_soc_component_get_dapm(component));

	else

		dev_err(component->dev, "%s: micbias %s force %s pin failed\n",

			__func__, cdc_supply->name, (enable ? "enable" : "disable"));



	return rc;

}

EXPORT_SYMBOL(msm_cdc_enable_wcd_supply);

include/asoc/msm-cdc-supply.h

+11 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/* Copyright (c) 2016, 2018-2019 The Linux Foundation. All rights reserved.

/* Copyright (c) 2016, 2018-2020 The Linux Foundation. All rights reserved.

 */



#ifndef __CODEC_POWER_SUPPLY_H__
@@ -18,6 +18,12 @@ struct cdc_regulator { 
	struct regulator *regulator;

};



struct cdc_wcd_supply {

	const char *name;

	struct device *dev;

	struct snd_soc_component *component;

};



extern int msm_cdc_get_power_supplies(struct device *dev,

				      struct cdc_regulator **cdc_vreg,

				      int *total_num_supplies);
@@ -50,4 +56,8 @@ extern int msm_cdc_init_supplies_v2(struct device *dev, 
				 struct cdc_regulator *cdc_vreg,

				 int num_supplies,

				 u32 vote_regulator_on_demand);

int msm_cdc_init_wcd_supply(struct device_node *np, const char *name,

			    struct cdc_wcd_supply *cdc_supply);

int msm_cdc_enable_wcd_supply(struct cdc_wcd_supply *cdc_supply, bool enable);



#endif