watchdog: cmsdk_apb: don't reconfigure after start (f4fda91e) · Commits · Wenxi XU / zephyr

drivers/watchdog/wdt_cmsdk_apb.c

+11 −0

Changes for drivers/watchdog/wdt_cmsdk_apb.c: 11 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ const struct device *wdog_r;
		static unsigned int reload_cycles = CMSDK_APB_WDOG_RELOAD;
		static uint8_t assigned_channels;
		static uint8_t flags;
		static bool enabled;

		static void (user_cb)(const struct device dev, int channel_id);

		@@ -88,6 +89,11 @@ static int wdog_cmsdk_apb_setup(const struct device *dev, uint8_t options)
		ARG_UNUSED(dev);
		ARG_UNUSED(options);

		/* Check if watchdog is already running */
		if (enabled) {
		return -EBUSY;
		}

		/* Reset pending interrupts before starting */
		wdog->intclr = CMSDK_APB_WDOG_INTCLR;
		wdog->load = reload_cycles;
		@@ -95,6 +101,7 @@ static int wdog_cmsdk_apb_setup(const struct device *dev, uint8_t options)
		/* Start the watchdog counter with INTEN bit */
		wdog->ctrl = (CMSDK_APB_WDOG_CTRL_RESEN \| CMSDK_APB_WDOG_CTRL_INTEN);

		enabled = true;
		return 0;
		}

		@@ -107,6 +114,7 @@ static int wdog_cmsdk_apb_disable(const struct device *dev)
		/* Stop the watchdog counter with INTEN bit */
		wdog->ctrl = ~(CMSDK_APB_WDOG_CTRL_RESEN \| CMSDK_APB_WDOG_CTRL_INTEN);

		enabled = false;
		assigned_channels = 0;

		return 0;
		@@ -123,6 +131,9 @@ static int wdog_cmsdk_apb_install_timeout(const struct device *dev,
		if (config->window.max == 0) {
		return -EINVAL;
		}
		if (enabled == true) {
		return -EBUSY;
		}
		if (assigned_channels == 1) {
		return -ENOMEM;
		}