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Commit 1d921549 authored by Rajesh Bharathwaj's avatar Rajesh Bharathwaj
Browse files

qxr-stdalonevwr: changes for oracle mic bias 



Adding Oracle MIC Bias Voltage regulator and enabling it.

Change-Id: I3b5b9e59777d7722dc39d16386f597e1a1a87b4c
Signed-off-by: default avatarRajesh Bharathwaj <rajeshbharathwaj@codeaurora.org>
parent 6639890b

drivers/misc/qxr-stdalonevwr.c

+17 −25
Original line number Diff line number Diff line 
// 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__);