A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "Bluetooth: Add retry for XO GPIO request"

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This commit is contained in:
qctecmdr 2021-03-04 04:46:42 -08:00 • committed by Gerrit - the friendly Code Review server
commit ce2c81d7f1
1 changed files with 12 additions and 1 deletions
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13
drivers/bluetooth/btpower.c
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@ -41,6 +41,7 @@
#define PWR_SRC_NOT_AVAILABLE -2
#define DEFAULT_INVALID_VALUE -1
#define PWR_SRC_INIT_STATE_IDX 0
#define XO_RESET_RETRY_COUNT_MAX 5
#define PWR_SRC_LOG_UNSUPPORTED {DEFAULT_INVALID_VALUE, DEFAULT_INVALID_VALUE}
@ -361,6 +362,7 @@ static int bt_configure_gpios(int on)
int bt_debug_gpio = bt_power_pdata->bt_gpio_debug;
int xo_reset_gpio = bt_power_pdata->xo_gpio_sys_rst;
int assert_dbg_gpio = 0;
int retry = 0;
if (on) {
rc = gpio_request(bt_reset_gpio, "bt_sys_rst_n");
@ -430,9 +432,18 @@ static int bt_configure_gpios(int on)
pr_info("xo_reset_gpio(%d)\n", xo_reset_gpio);
if (xo_reset_gpio > 0) {
retry_gpio_req:
rc = gpio_request(xo_reset_gpio, "xo_reset_gpio_n");
if (rc) {
pr_err("%s: unable to request gpio %d (%d)\n",
if (retry++ < XO_RESET_RETRY_COUNT_MAX) {
/* wait for ~(10 - 20) ms */
usleep_range(10000, 20000);
goto retry_gpio_req;
}
}
if (rc) {
pr_err("%s: unable to request XO reset gpio %d (%d)\n",
__func__, xo_reset_gpio, rc);
} else {
pr_info("%s: gpio_request for xo_reset_gpio succeed\n",