Merge "Bluetooth: Add retry for XO GPIO request" (ce2c81d7) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/bluetooth/btpower.c

+12 −1

Original line number	Diff line number	Diff line
		@@ -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",