arch/risc-v: Enable low power mode for ESP32-P4

Documentation/platforms/risc-v/esp32p4/boards/esp32p4-function-ev-board/index.rst

@@ -234,6 +234,63 @@ ostest
 
 Runs OS tests from ``apps/testing/ostest``.
 
+pm
+-------
+
+This config demonstrate the use of power management.
+You can use the ``pmconfig`` command to check current power state and time spent in other power states.
+Also you can define time will spend in standby and sleep modes::
+
+    $ make menuconfig
+    -> Board Selection
+        -> (15) PM_STANDBY delay (seconds)
+           (0)  PM_STANDBY delay (nanoseconds)
+           (20) PM_SLEEP delay (seconds)
+           (0)  PM_SLEEP delay (nanoseconds)
+
+Timer wakeup is not only way to wake up the chip. Other wakeup modes include:
+
+- EXT1 wakeup mode: Uses RTC GPIO pins to wake up the chip. Enabled with ``CONFIG_PM_EXT1_WAKEUP`` option.
+- GPIO wakeup mode: Uses GPIO pins to wakeup the chip. Only wakes up the chip from ``PM_STANDBY`` mode and requires ``CONFIG_PM_GPIO_WAKEUP``.
+- UART wakeup mode: Uses UART to wakeup the chip. Only wakes up the chip from ``PM_STANDBY`` mode and requires ``CONFIG_PM_GPIO_WAKEUP``.
+
+Before switching PM status, you need to query the current PM status to call correct number of relax command to correct modes::
+
+    nsh> pmconfig
+    Last state 0, Next state 0
+
+    /proc/pm/state0:
+    DOMAIN0           WAKE         SLEEP         TOTAL
+    normal          0s 00%        0s 00%        0s 00%
+    idle            0s 00%        0s 00%        0s 00%
+    standby         0s 00%        0s 00%        0s 00%
+    sleep           0s 00%        0s 00%        0s 00%
+
+    /proc/pm/wakelock0:
+    DOMAIN0      STATE     COUNT      TIME
+    system       normal        2        1s
+    system       idle          1        1s
+    system       standby       1        1s
+    system       sleep         1        1s
+
+In this case, needed commands to switch the system into PM idle mode::
+
+    nsh> pmconfig relax normal
+    nsh> pmconfig relax normal
+
+In this case, needed commands to switch the system into PM standby mode::
+
+    nsh> pmconfig relax idle
+    nsh> pmconfig relax normal
+    nsh> pmconfig relax normal
+
+System switch to the PM sleep mode, you need to enter::
+
+    nsh> pmconfig relax standby
+    nsh> pmconfig relax idle
+    nsh> pmconfig relax normal
+    nsh> pmconfig relax normal
+
 pwm
 ---
 

arch/risc-v/src/common/espressif/Kconfig

@@ -816,25 +816,200 @@ config PM_GPIO_WAKEUP_GPIO27
 
 config PM_GPIO_WAKEUP_GPIO28
 	bool "GPIO28"
-	depends on ARCH_CHIP_ESP32C6
+	depends on ARCH_CHIP_ESP32C6 || ARCH_CHIP_ESP32P4
 	default n
 	---help---
 		Enable GPIO28 as an GPIO wakeup source.
 
 config PM_GPIO_WAKEUP_GPIO29
 	bool "GPIO29"
-	depends on ARCH_CHIP_ESP32C6
+	depends on ARCH_CHIP_ESP32C6 || ARCH_CHIP_ESP32P4
 	default n
 	---help---
 		Enable GPIO29 as an GPIO wakeup source.
 
 config PM_GPIO_WAKEUP_GPIO30
 	bool "GPIO30"
-	depends on ARCH_CHIP_ESP32C6
+	depends on ARCH_CHIP_ESP32C6 || ARCH_CHIP_ESP32P4
 	default n
 	---help---
 		Enable GPIO30 as an GPIO wakeup source.
 
+config PM_GPIO_WAKEUP_GPIO31
+	bool "GPIO31"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO31 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO32
+	bool "GPIO32"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO32 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO33
+	bool "GPIO33"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO33 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO34
+	bool "GPIO34"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO34 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO35
+	bool "GPIO35"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO35 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO36
+	bool "GPIO36"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO36 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO37
+	bool "GPIO37"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO37 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO38
+	bool "GPIO38"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO38 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO39
+	bool "GPIO39"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO39 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO40
+	bool "GPIO40"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO40 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO41
+	bool "GPIO41"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO41 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO42
+	bool "GPIO42"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO42 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO43
+	bool "GPIO43"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO43 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO44
+	bool "GPIO44"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO44 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO45
+	bool "GPIO45"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO45 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO46
+	bool "GPIO46"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO46 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO47
+	bool "GPIO47"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO47 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO48
+	bool "GPIO48"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO48 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO49
+	bool "GPIO49"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO49 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO50
+	bool "GPIO50"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO50 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO51
+	bool "GPIO51"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO51 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO52
+	bool "GPIO52"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO52 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO53
+	bool "GPIO53"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+    Enable GPIO53 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO54
+	bool "GPIO54"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO54 as an GPIO wakeup source.
+
+config PM_GPIO_WAKEUP_GPIO55
+	bool "GPIO55"
+	depends on ARCH_CHIP_ESP32P4
+	default n
+	---help---
+		Enable GPIO55 as an GPIO wakeup source.
+
 choice PM_GPIO_WAKEUP_TRIGGER_MODE
 	prompt "PM GPIO Wakeup Trigger Mode"
 	default PM_GPIO_WAKEUP_TRIGGER_ANY_LOW

arch/risc-v/src/common/espressif/Make.defs

@@ -279,6 +279,7 @@ include common$(DELIM)espressif$(DELIM)Bootloader.mk
 # Silent preprocessor warnings
 
 CFLAGS += -Wno-shadow -Wno-undef -Wno-unused-variable -fno-jump-tables -fno-tree-switch-conversion -Wno-deprecated-declarations
+AFLAGS += -Wno-undef
 
 # Remove quotes from CONFIG_ESPRESSIF_CHIP_SERIES configuration