A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-07 12:25:00 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "bluetooth: add support for retrieving power resource values"

Browse source
This commit is contained in:
qctecmdr 2020-05-27 18:54:59 -07:00 • committed by Gerrit - the friendly Code Review server
commit f7d26b82cb
2 changed files with 152 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

148
drivers/bluetooth/btpower.c
View file

@ -218,8 +218,9 @@ static int bt_configure_gpios(int on)
{
int rc = 0;
int bt_reset_gpio = bt_power_pdata->bt_gpio_sys_rst;
pr_debug("%s: bt_gpio= %d on: %d\n", __func__, bt_reset_gpio, on);
int bt_sw_ctrl_gpio = bt_power_pdata->bt_gpio_sw_ctrl;
int bt_debug_gpio = bt_power_pdata->bt_gpio_debug;
int assert_dbg_gpio = 0;
if (on) {
rc = gpio_request(bt_reset_gpio, "bt_sys_rst_n");
@ -235,16 +236,66 @@ static int bt_configure_gpios(int on)
return rc;
}
msleep(50);
pr_debug("BTON:Turn Bt Off bt-reset-gpio(%d) value(%d)\n",
bt_reset_gpio, gpio_get_value(bt_reset_gpio));
if (bt_sw_ctrl_gpio >= 0) {
pr_debug("BTON:Turn Bt Off\n");
pr_debug("bt-sw-ctrl-gpio(%d) value(%d)\n",
bt_sw_ctrl_gpio,
gpio_get_value(bt_sw_ctrl_gpio));
}
rc = gpio_direction_output(bt_reset_gpio, 1);
if (rc) {
pr_err("%s: Unable to set direction\n", __func__);
return rc;
}
msleep(50);
/* Check if SW_CTRL is asserted */
if (bt_sw_ctrl_gpio >= 0) {
rc = gpio_direction_input(bt_sw_ctrl_gpio);
if (rc) {
pr_err("%s:SWCTRL Dir Set Problem:%d\n",
__func__, rc);
} else if (!gpio_get_value(bt_sw_ctrl_gpio)) {
/* SW_CTRL not asserted, assert debug GPIO */
if (bt_debug_gpio >= 0)
assert_dbg_gpio = 1;
}
}
if (assert_dbg_gpio) {
rc = gpio_request(bt_debug_gpio, "bt_debug_n");
if (rc) {
pr_err("unable to request Debug Gpio\n");
} else {
rc = gpio_direction_output(bt_debug_gpio, 1);
if (rc)
pr_err("%s:Prob Set Debug-Gpio\n",
__func__);
}
}
pr_info("BTON:Turn Bt On bt-reset-gpio(%d) value(%d)\n",
bt_reset_gpio, gpio_get_value(bt_reset_gpio));
if (bt_sw_ctrl_gpio >= 0) {
pr_debug("BTON:Turn Bt On\n");
pr_debug("bt-sw-ctrl-gpio(%d) value(%d)\n",
bt_sw_ctrl_gpio,
gpio_get_value(bt_sw_ctrl_gpio));
}
} else {
gpio_set_value(bt_reset_gpio, 0);
msleep(100);
pr_debug("BT-OFF:bt-reset-gpio(%d) value(%d)\n",
bt_reset_gpio, gpio_get_value(bt_reset_gpio));
if (bt_sw_ctrl_gpio >= 0) {
pr_debug("BT-OFF:bt-sw-ctrl-gpio(%d) value(%d)\n",
bt_sw_ctrl_gpio,
gpio_get_value(bt_sw_ctrl_gpio));
}
}
pr_debug("%s: bt_gpio= %d on: %d\n", __func__, bt_reset_gpio, on);
return rc;
}
@ -287,6 +338,10 @@ static int bluetooth_power(int 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_sw_ctrl > 0)
gpio_free(bt_power_pdata->bt_gpio_sw_ctrl);
if (bt_power_pdata->bt_gpio_debug > 0)
gpio_free(bt_power_pdata->bt_gpio_debug);
if (bt_power_pdata->bt_chip_clk)
bt_clk_disable(bt_power_pdata->bt_chip_clk);
clk_fail:
@ -589,6 +644,18 @@ static int bt_power_populate_dt_pinfo(struct platform_device *pdev)
pr_err("%s: bt-reset-gpio not provided in device tree\n",
__func__);
bt_power_pdata->bt_gpio_sw_ctrl =
of_get_named_gpio(pdev->dev.of_node,
"qca,bt-sw-ctrl-gpio", 0);
if (bt_power_pdata->bt_gpio_sw_ctrl < 0)
pr_err("bt-sw_ctrl-gpio not provided in devicetree\n");
bt_power_pdata->bt_gpio_debug =
of_get_named_gpio(pdev->dev.of_node,
"qca,bt-debug-gpio", 0);
if (bt_power_pdata->bt_gpio_debug < 0)
pr_err("bt-debug-gpio not provided in devicetree\n");
rc = bt_dt_parse_clk_info(&pdev->dev,
&bt_power_pdata->bt_chip_clk);
if (rc < 0)
@ -683,10 +750,45 @@ int btpower_get_chipset_version(void)
}
EXPORT_SYMBOL(btpower_get_chipset_version);
static long get_resource_value(char *res_name)
{
int ret = 0;
int i = 0;
long value = -1;
struct bt_power_vreg_data *vreg;
for (; i < BT_VREG_INFO_SIZE; i++) {
vreg = &bt_power_pdata->vreg_info[i];
if (!vreg->reg)
continue;
else {
if (strnstr(vreg->name, res_name,
strlen(vreg->name)))
break;
}
}
if (i < BT_VREG_INFO_SIZE) {
if (regulator_is_enabled(vreg->reg)) {
value = (int)regulator_get_voltage(vreg->reg);
pr_debug("%s:%s value(%d)\n",
__func__, res_name, value);
ret = value;
} else {
pr_err("%s:%s not configure/enabled\n",
__func__, res_name);
ret = -EINVAL;
}
}
return ret;
}
static long bt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = 0, pwr_cntrl = 0;
int chipset_version = 0;
long value = -1;
switch (cmd) {
case BT_CMD_SLIM_TEST:
@ -718,8 +820,8 @@ static long bt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
case BT_CMD_CHIPSET_VERS:
chipset_version = (int)arg;
pr_err("%s: BT_CMD_CHIP_VERS soc_version:%x\n", __func__,
chipset_version);
pr_err("%s: unified Current SOC Version : %x\n", __func__,
chipset_version);
if (chipset_version) {
soc_id = chipset_version;
} else {
@ -740,6 +842,44 @@ static long bt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
ret = -EINVAL;
}
break;
case BT_CMD_GETVAL_RESET_GPIO:
if (bt_power_pdata->bt_gpio_sys_rst > 0) {
value = (long)gpio_get_value(
bt_power_pdata->bt_gpio_sys_rst);
pr_debug("%s:GET_RESET_GPIO(%d) value(%d)\n",
bt_power_pdata->bt_gpio_sys_rst,
__func__, value);
ret = value;
} else {
pr_err("%s: RESET_GPIO not configured\n", __func__);
ret = -EINVAL;
}
break;
case BT_CMD_GETVAL_SW_CTRL_GPIO:
if (bt_power_pdata->bt_gpio_sw_ctrl > 0) {
value = (long)gpio_get_value(
bt_power_pdata->bt_gpio_sw_ctrl);
pr_debug("%s:GET_SWCTRL_GPIO(%d) value(%d)\n",
bt_power_pdata->bt_gpio_sw_ctrl,
__func__, value);
ret = value;
} else {
pr_err("%s:SW_CTRL_GPIO not configured\n", __func__);
ret = -EINVAL;
}
break;
case BT_CMD_GETVAL_VDD_AON_LDO:
ret = get_resource_value("vdd-aon");
break;
case BT_CMD_GETVAL_VDD_DIG_LDO:
ret = get_resource_value("vdd-dig");
break;
case BT_CMD_GETVAL_VDD_RFA1_LDO:
ret = get_resource_value("vdd-rfa1");
break;
case BT_CMD_GETVAL_VDD_RFA2_LDO:
ret = get_resource_value("vdd-rfa2");
break;
default:
return -ENOIOCTLCMD;
}

8
include/linux/btpower.h
View file

@ -39,6 +39,8 @@ struct bt_power_clk_data {
*/
struct bluetooth_power_platform_data {
int bt_gpio_sys_rst; /* Bluetooth reset gpio */
int bt_gpio_sw_ctrl; /* Bluetooth sw_ctrl gpio */
int bt_gpio_debug; /* Bluetooth debug gpio */
struct device *slim_dev;
struct bt_power_vreg_data *vreg_info; /* VDDIO voltage regulator */
struct bt_power_clk_data *bt_chip_clk; /* bluetooth reference clock */
@ -53,4 +55,10 @@ int btpower_get_chipset_version(void);
#define BT_CMD_PWR_CTRL 0xbfad
#define BT_CMD_CHIPSET_VERS 0xbfae
#define BT_CMD_GET_CHIPSET_ID 0xbfaf
#define BT_CMD_GETVAL_RESET_GPIO 0xbfb5
#define BT_CMD_GETVAL_SW_CTRL_GPIO 0xbfb0
#define BT_CMD_GETVAL_VDD_AON_LDO 0xbfb1
#define BT_CMD_GETVAL_VDD_DIG_LDO 0xbfb2
#define BT_CMD_GETVAL_VDD_RFA1_LDO 0xbfb3
#define BT_CMD_GETVAL_VDD_RFA2_LDO 0xbfb4
#endif /* __LINUX_BLUETOOTH_POWER_H */