drivers: gpio: mchp_mss: Add reset support (9832973b) · Commits · Wenxi XU / zephyr

drivers/gpio/gpio_mchp_mss.c

+19 −3

Original line number	Diff line number	Diff line
		@@ -15,6 +15,12 @@

		#include <zephyr/drivers/gpio/gpio_utils.h>

		/* Is MSS GPIO module 'resets' line property defined */
		#define MSS_GPIO_RESET_ENABLED DT_ANY_INST_HAS_PROP_STATUS_OKAY(resets)

		#if MSS_GPIO_RESET_ENABLED
		#include <zephyr/drivers/reset.h>
		#endif

		#define MSS_GPIO_INPUT_MODE 0x02
		#define MSS_GPIO_OUTPUT_MODE 0x05
		@@ -48,6 +54,9 @@ struct mss_gpio_config {
		uintptr_t gpio_base_addr;
		uint32_t gpio_irq_base;
		mss_gpio_cfg_func_t gpio_cfg_func;
		#if MSS_GPIO_RESET_ENABLED
		struct reset_dt_spec reset_spec;
		#endif
		};

		struct mss_gpio_data {
		@@ -209,10 +218,15 @@ static DEVICE_API(gpio, mss_gpio_driver) = {
		static int mss_gpio_init(const struct device *dev)
		{
		volatile struct mss_gpio_t *gpio = DEV_GPIO(dev);
		const struct mss_gpio_config *cfg = DEV_GPIO_CFG(dev);

		gpio->gpio_irq = 0xFFFFFFFFU;
		#if MSS_GPIO_RESET_ENABLED
		if (cfg->reset_spec.dev != NULL) {
		(void)reset_line_deassert_dt(&cfg->reset_spec);
		}
		#endif

		const struct mss_gpio_config *cfg = DEV_GPIO_CFG(dev);
		gpio->gpio_irq = 0xFFFFFFFFU;
		/* Configure GPIO device */
		cfg->gpio_cfg_func();
		return 0;
		@@ -239,7 +253,9 @@ static void mss_gpio_irq_handler(const struct device *dev)
		}, \
		.gpio_base_addr = DT_INST_REG_ADDR(n), \
		.gpio_irq_base = DT_INST_IRQN(n), \
		.gpio_cfg_func = gpio_mss_gpio_cfg_func_##n \
		.gpio_cfg_func = gpio_mss_gpio_cfg_func_##n, \
		IF_ENABLED(DT_INST_NODE_HAS_PROP(n, resets), \
		(.reset_spec = RESET_DT_SPEC_INST_GET(n),)) \
		}; \
		\
		DEVICE_DT_INST_DEFINE(n, \

+1 −1

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@ description: Microchip PolarFire SoC GPIO

		compatible: "microchip,mpfs-gpio"

		include: [gpio-controller.yaml, base.yaml]
		include: [gpio-controller.yaml, base.yaml, reset-device.yaml]

		properties:
		reg: