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qxr-stdalonevwr: changes for oracle mic bias

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Adding Oracle MIC Bias Voltage regulator and enabling it.

Change-Id: I3b5b9e59777d7722dc39d16386f597e1a1a87b4c
Signed-off-by: Rajesh Bharathwaj <rajeshbharathwaj@codeaurora.org>
This commit is contained in:
Rajesh Bharathwaj 2021-07-19 15:19:05 -07:00
parent 6639890b6a
commit 1d92154966
1 changed files with 17 additions and 25 deletions
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42
drivers/misc/qxr-stdalonevwr.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/kernel.h>
#include <linux/module.h>
@ -15,7 +15,8 @@
struct qxr_stdalonevwr {
struct platform_device *pdev;
struct regulator *reg_imu;
int ndi_5v_en;
struct regulator *reg_dmic;
/*int ndi_5v_en;*/
bool initDone;
};
@ -24,7 +25,6 @@ static struct qxr_stdalonevwr *pdata;
static int qxr_stdalonevwr_allocate_res(void)
{
int rc = -EINVAL;
bool gpioEnabled = false;
if (pdata->initDone) {
pr_debug("%s init is done already\n", __func__);
@ -35,27 +35,20 @@ static int qxr_stdalonevwr_allocate_res(void)
if (!IS_ERR(pdata->reg_imu)) {
regulator_set_load(pdata->reg_imu, 600000);
rc = regulator_enable(pdata->reg_imu);
if (rc < 0) {
if (rc < 0)
pr_err("%s IMU rail pm8150a_l11 failed\n", __func__);
devm_regulator_put(pdata->reg_imu);
}
}
if (gpio_is_valid(pdata->ndi_5v_en)) {
rc = gpio_request(pdata->ndi_5v_en, "ndi_5v_en");
if (!rc) {
rc = gpio_direction_output(pdata->ndi_5v_en, 0);
if (!rc) {
gpio_set_value(pdata->ndi_5v_en, 1);
gpioEnabled = true;
msleep(20);
}
}
}
if (!gpioEnabled) {
pr_err("%s NDI_5V_EN gpio failed to allocate\n", __func__);
gpio_free(pdata->ndi_5v_en);
/* Oracle MIC BIAS Voltage regulator */
pdata->reg_dmic = devm_regulator_get(&pdata->pdev->dev, "pm8150_l10");
if (!IS_ERR(pdata->reg_dmic)) {
regulator_set_load(pdata->reg_dmic, 600000);
rc = regulator_enable(pdata->reg_dmic);
if (rc < 0)
pr_err("%s Oracle MIC BIAS reg pm8150_l10 failed\n",
__func__);
}
pdata->initDone = true;
pr_debug("%s rc:%d\n", __func__, rc);
return rc;
@ -64,11 +57,10 @@ static int qxr_stdalonevwr_allocate_res(void)
static void qxr_stdalonevwr_free_res(void)
{
if (pdata->initDone) {
if (pdata->reg_imu) {
if (pdata->reg_imu)
regulator_disable(pdata->reg_imu);
devm_regulator_put(pdata->reg_imu);
}
gpio_free(pdata->ndi_5v_en);
if (pdata->reg_dmic)
regulator_disable(pdata->reg_dmic);
pdata->initDone = false;
}
pr_debug("%s initDone:%d\n", __func__, pdata->initDone);
@ -82,7 +74,7 @@ static int qxr_stdalonevwr_probe(struct platform_device *pdev)
return -ENOMEM;
pdata->pdev = pdev;
pdata->ndi_5v_en = 1237;
/*pdata->ndi_5v_en = 1237;*/
pdata->initDone = false;
qxr_stdalonevwr_allocate_res();
pr_info("%s done\n", __func__);