Evolution-X-Devices/kernel_xiaomi_raphael
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Bluetooth: Add the support for wcn3980 in SDM429w

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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: Harish Bandi <hbandi@codeaurora.org>
This commit is contained in:
Harish Bandi
2020-07-17 22:27:06 +05:30
parent feb2bf444e
commit d603e191bf
2 changed files with 90 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
drivers/bluetooth/bluetooth-power.c
View File

@@ -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)

6
include/linux/bluetooth-power.h
View File

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