soc: ti: wkup_m3_ipc: Add wkup_m3_request_wake_src (ec93b62f) · Commits · 戴 / test

drivers/soc/ti/wkup_m3_ipc.c

+39 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,7 @@
		#define M3_BASELINE_VERSION 0x191
		#define M3_STATUS_RESP_MASK (0xffff << 16)
		#define M3_FW_VERSION_MASK 0xffff
		#define M3_WAKE_SRC_MASK 0xff

		#define M3_STATE_UNKNOWN 0
		#define M3_STATE_RESET 1
		@@ -55,6 +56,23 @@

		static struct wkup_m3_ipc *m3_ipc_state;

		static const struct wkup_m3_wakeup_src wakeups[] = {
		{.irq_nr = 35, .src = "USB0_PHY"},
		{.irq_nr = 36, .src = "USB1_PHY"},
		{.irq_nr = 40, .src = "I2C0"},
		{.irq_nr = 41, .src = "RTC Timer"},
		{.irq_nr = 42, .src = "RTC Alarm"},
		{.irq_nr = 43, .src = "Timer0"},
		{.irq_nr = 44, .src = "Timer1"},
		{.irq_nr = 45, .src = "UART"},
		{.irq_nr = 46, .src = "GPIO0"},
		{.irq_nr = 48, .src = "MPU_WAKE"},
		{.irq_nr = 49, .src = "WDT0"},
		{.irq_nr = 50, .src = "WDT1"},
		{.irq_nr = 51, .src = "ADC_TSC"},
		{.irq_nr = 0, .src = "Unknown"},
		};

		static void am33xx_txev_eoi(struct wkup_m3_ipc *m3_ipc)
		{
		writel(AM33XX_M3_TXEV_ACK,
		@@ -329,6 +347,26 @@ static int wkup_m3_finish_low_power(struct wkup_m3_ipc *m3_ipc)
		return 0;
		}

		/**
		* wkup_m3_request_wake_src - Get the wakeup source info passed from wkup_m3
		* @m3_ipc: Pointer to wkup_m3_ipc context
		*/
		static const char wkup_m3_request_wake_src(struct wkup_m3_ipc m3_ipc)
		{
		unsigned int wakeup_src_idx;
		int j, val;

		val = wkup_m3_ctrl_ipc_read(m3_ipc, 6);

		wakeup_src_idx = val & M3_WAKE_SRC_MASK;

		for (j = 0; j < ARRAY_SIZE(wakeups) - 1; j++) {
		if (wakeups[j].irq_nr == wakeup_src_idx)
		return wakeups[j].src;
		}
		return wakeups[j].src;
		}

		/**
		* wkup_m3_set_rtc_only - Set the rtc_only flag
		* @wkup_m3_wakeup: struct wkup_m3_wakeup_src * gets assigned the
		@@ -346,6 +384,7 @@ static struct wkup_m3_ipc_ops ipc_ops = {
		.prepare_low_power = wkup_m3_prepare_low_power,
		.finish_low_power = wkup_m3_finish_low_power,
		.request_pm_status = wkup_m3_request_pm_status,
		.request_wake_src = wkup_m3_request_wake_src,
		.set_rtc_only = wkup_m3_set_rtc_only,
		};

include/linux/wkup_m3_ipc.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -43,12 +43,18 @@ struct wkup_m3_ipc {
		int is_rtc_only;
		};

		struct wkup_m3_wakeup_src {
		int irq_nr;
		char src[10];
		};

		struct wkup_m3_ipc_ops {
		void (set_mem_type)(struct wkup_m3_ipc m3_ipc, int mem_type);
		void (set_resume_address)(struct wkup_m3_ipc m3_ipc, void *addr);
		int (prepare_low_power)(struct wkup_m3_ipc m3_ipc, int state);
		int (finish_low_power)(struct wkup_m3_ipc m3_ipc);
		int (request_pm_status)(struct wkup_m3_ipc m3_ipc);
		const char (request_wake_src)(struct wkup_m3_ipc *m3_ipc);
		void (set_rtc_only)(struct wkup_m3_ipc m3_ipc);
		};

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