soc: ti: wkup_m3_ipc: Add wkup_m3_request_wake_src
Add wkup_m3_request_wake_src to allow users to get the name of the wakeup source after a DeepSleep or Standby transition. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>hifive-unleashed-5.1
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@ -46,6 +46,7 @@
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#define M3_BASELINE_VERSION 0x191
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#define M3_BASELINE_VERSION 0x191
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#define M3_STATUS_RESP_MASK (0xffff << 16)
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#define M3_STATUS_RESP_MASK (0xffff << 16)
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#define M3_FW_VERSION_MASK 0xffff
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#define M3_FW_VERSION_MASK 0xffff
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#define M3_WAKE_SRC_MASK 0xff
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#define M3_STATE_UNKNOWN 0
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#define M3_STATE_UNKNOWN 0
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#define M3_STATE_RESET 1
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#define M3_STATE_RESET 1
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@ -55,6 +56,23 @@
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static struct wkup_m3_ipc *m3_ipc_state;
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static struct wkup_m3_ipc *m3_ipc_state;
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static const struct wkup_m3_wakeup_src wakeups[] = {
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{.irq_nr = 35, .src = "USB0_PHY"},
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{.irq_nr = 36, .src = "USB1_PHY"},
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{.irq_nr = 40, .src = "I2C0"},
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{.irq_nr = 41, .src = "RTC Timer"},
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{.irq_nr = 42, .src = "RTC Alarm"},
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{.irq_nr = 43, .src = "Timer0"},
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{.irq_nr = 44, .src = "Timer1"},
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{.irq_nr = 45, .src = "UART"},
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{.irq_nr = 46, .src = "GPIO0"},
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{.irq_nr = 48, .src = "MPU_WAKE"},
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{.irq_nr = 49, .src = "WDT0"},
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{.irq_nr = 50, .src = "WDT1"},
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{.irq_nr = 51, .src = "ADC_TSC"},
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{.irq_nr = 0, .src = "Unknown"},
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};
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static void am33xx_txev_eoi(struct wkup_m3_ipc *m3_ipc)
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static void am33xx_txev_eoi(struct wkup_m3_ipc *m3_ipc)
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{
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{
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writel(AM33XX_M3_TXEV_ACK,
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writel(AM33XX_M3_TXEV_ACK,
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@ -329,6 +347,26 @@ static int wkup_m3_finish_low_power(struct wkup_m3_ipc *m3_ipc)
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return 0;
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return 0;
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}
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}
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/**
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* wkup_m3_request_wake_src - Get the wakeup source info passed from wkup_m3
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* @m3_ipc: Pointer to wkup_m3_ipc context
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*/
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static const char *wkup_m3_request_wake_src(struct wkup_m3_ipc *m3_ipc)
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{
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unsigned int wakeup_src_idx;
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int j, val;
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val = wkup_m3_ctrl_ipc_read(m3_ipc, 6);
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wakeup_src_idx = val & M3_WAKE_SRC_MASK;
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for (j = 0; j < ARRAY_SIZE(wakeups) - 1; j++) {
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if (wakeups[j].irq_nr == wakeup_src_idx)
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return wakeups[j].src;
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}
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return wakeups[j].src;
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}
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/**
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/**
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* wkup_m3_set_rtc_only - Set the rtc_only flag
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* wkup_m3_set_rtc_only - Set the rtc_only flag
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* @wkup_m3_wakeup: struct wkup_m3_wakeup_src * gets assigned the
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* @wkup_m3_wakeup: struct wkup_m3_wakeup_src * gets assigned the
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@ -346,6 +384,7 @@ static struct wkup_m3_ipc_ops ipc_ops = {
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.prepare_low_power = wkup_m3_prepare_low_power,
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.prepare_low_power = wkup_m3_prepare_low_power,
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.finish_low_power = wkup_m3_finish_low_power,
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.finish_low_power = wkup_m3_finish_low_power,
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.request_pm_status = wkup_m3_request_pm_status,
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.request_pm_status = wkup_m3_request_pm_status,
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.request_wake_src = wkup_m3_request_wake_src,
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.set_rtc_only = wkup_m3_set_rtc_only,
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.set_rtc_only = wkup_m3_set_rtc_only,
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};
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};
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@ -43,12 +43,18 @@ struct wkup_m3_ipc {
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int is_rtc_only;
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int is_rtc_only;
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};
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};
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struct wkup_m3_wakeup_src {
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int irq_nr;
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char src[10];
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};
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struct wkup_m3_ipc_ops {
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struct wkup_m3_ipc_ops {
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void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type);
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void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type);
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void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr);
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void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr);
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int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state);
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int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state);
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int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc);
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int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc);
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int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc);
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int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc);
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const char *(*request_wake_src)(struct wkup_m3_ipc *m3_ipc);
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void (*set_rtc_only)(struct wkup_m3_ipc *m3_ipc);
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void (*set_rtc_only)(struct wkup_m3_ipc *m3_ipc);
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};
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};
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