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Commit d603e191 authored by Harish Bandi's avatar Harish Bandi
Browse files

Bluetooth: Add the support for wcn3980 in SDM429w 



Enable the new msm GPIO's to enable eLDO for
3.3v and 1.3v to turn on wcn3980.

Change-Id: Id476b187336906cddd66621471afa20dd8924b40
Signed-off-by: default avatarHarish Bandi <hbandi@codeaurora.org>
parent feb2bf44

drivers/bluetooth/bluetooth-power.c

+85 −0
Original line number Diff line number Diff line
@@ -242,6 +242,64 @@ static int bt_clk_disable(struct bt_power_clk_data *clk) 
	return rc;

}



static int bt_configure_gpios_2wcn(int on)

{

	int rc = 0;

	int bt_3p3_en_gpio = bt_power_pdata->bt_gpio_3p3_en;

	int bt_1p3_en_gpio = bt_power_pdata->bt_gpio_1p3_en;



	BT_PWR_DBG("2wcn - bt_gpio= %d on: %d", bt_3p3_en_gpio, on);



	if (on) {

		rc = gpio_request(bt_3p3_en_gpio, "bt_3p3_en_n");

		if (rc) {

			BT_PWR_ERR("unable to request gpio %d (%d)\n",

					bt_3p3_en_gpio, rc);

			return rc;

		}



		rc = gpio_direction_output(bt_3p3_en_gpio, 0);

		if (rc) {

			BT_PWR_ERR("Unable to set direction\n");

			return rc;

		}

		msleep(50);

		rc = gpio_direction_output(bt_3p3_en_gpio, 1);

		if (rc) {

			BT_PWR_ERR("Unable to set direction\n");

			return rc;

		}

		msleep(50);



		rc = gpio_request(bt_1p3_en_gpio, "bt_1p3_en_n");

		if (rc) {

			BT_PWR_ERR("unable to request gpio %d (%d)\n",

					bt_1p3_en_gpio, rc);

			return rc;

		}



		rc = gpio_direction_output(bt_1p3_en_gpio, 0);

		if (rc) {

			BT_PWR_ERR("Unable to set direction\n");

			return rc;

		}

		msleep(50);

		rc = gpio_direction_output(bt_1p3_en_gpio, 1);

		if (rc) {

			BT_PWR_ERR("Unable to set direction\n");

			return rc;

		}

		msleep(50);

	} else {

		gpio_set_value(bt_3p3_en_gpio, 0);

		msleep(100);

		gpio_set_value(bt_1p3_en_gpio, 0);

		msleep(100);

	}

	return rc;

}





static int bt_configure_gpios(int on)

{

	int rc = 0;
@@ -305,12 +363,27 @@ static int bluetooth_power(int on) 
				goto gpio_fail;

			}

		}

		if (bt_power_pdata->bt_gpio_3p3_en > 0) {

			BT_PWR_ERR(

			"bt_power gpio config start for  2wcn gpios");

			rc = bt_configure_gpios_2wcn(on);

			if (rc < 0) {

				BT_PWR_ERR("bt_power gpio config failed");

				goto gpio_fail;

			}

		}

	} else {

		if (bt_power_pdata->bt_gpio_sys_rst > 0)

			bt_configure_gpios(on);

		if (bt_power_pdata->bt_gpio_3p3_en > 0)

			bt_configure_gpios_2wcn(on);

gpio_fail:

		if (bt_power_pdata->bt_gpio_sys_rst > 0)

			gpio_free(bt_power_pdata->bt_gpio_sys_rst);

		if (bt_power_pdata->bt_gpio_3p3_en > 0)

			gpio_free(bt_power_pdata->bt_gpio_3p3_en);

		if (bt_power_pdata->bt_gpio_1p3_en > 0)

			gpio_free(bt_power_pdata->bt_gpio_1p3_en);

		if (bt_power_pdata->bt_chip_clk)

			bt_clk_disable(bt_power_pdata->bt_chip_clk);

clk_fail:
@@ -584,6 +657,18 @@ static int bt_power_populate_dt_pinfo(struct platform_device *pdev) 
		if (bt_power_pdata->bt_gpio_sys_rst < 0)

			BT_PWR_ERR("bt-reset-gpio not provided in device tree");



		bt_power_pdata->bt_gpio_3p3_en =

			of_get_named_gpio(pdev->dev.of_node,

						"qca,bt-3P3-en-gpio", 0);

		if (bt_power_pdata->bt_gpio_3p3_en < 0)

			BT_PWR_INFO("bt-3P3-gpio not provided in devicetree");



		bt_power_pdata->bt_gpio_1p3_en =

			of_get_named_gpio(pdev->dev.of_node,

						"qca,bt-1P3-en-gpio", 0);

		if (bt_power_pdata->bt_gpio_1p3_en < 0)

			BT_PWR_INFO("bt-1P3-gpio not provided in devicetree");



		rc = bt_dt_parse_clk_info(&pdev->dev,

					&bt_power_pdata->bt_chip_clk);

		if (rc < 0)

include/linux/bluetooth-power.h

+5 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2018,2020, 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
@@ -59,6 +59,10 @@ struct bt_power_clk_data { 
struct bluetooth_power_platform_data {

	/* Bluetooth reset gpio */

	int bt_gpio_sys_rst;

	/* Bluetooth 3p3 gpio */

	int bt_gpio_3p3_en;

	/* Bluetooth 1p3 gpio */

	int bt_gpio_1p3_en;

	struct device *slim_dev;

	/* VDDIO voltage regulator */

	struct bt_power_vreg_data *vreg_info;