samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

asoc: codecs: Add codec supply to enable mic bias pin

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

Change-Id: If2b2a3120f7f0c87dc6ebe1c1e6c9062b7f2891e
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>
This commit is contained in:
Karthikeyan Mani
2020-01-17 15:30:50 -08:00
committed by Gerrit - the friendly Code Review server
parent 823f0f01fe
commit 669b885ac7
2 changed files with 81 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
asoc/codecs/msm-cdc-supply.c
View File

@@ -1,6 +1,6 @@
// 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 @@ err_mem_alloc:
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);

12
include/asoc/msm-cdc-supply.h
View File

@@ -1,5 +1,5 @@
/* 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