ACPI: EC: Enable EC support on LoongArch by default

Commit a6021aa ("ACPI: EC: make EC support compile-time
conditional") only enable ACPI_EC on X86 by default, but the embedded
controller is also widely used on LoongArch laptops so we also enable
ACPI_EC for LoongArch.

The laptop driver cannot work without EC, so also update the dependency
of LOONGSON_LAPTOP to let it depend on APCI_EC.

Fixes: a6021aa ("ACPI: EC: make EC support compile-time conditional")
Reported-by: Xiaotian Wu <[email protected]>
Tested-by: Binbin Zhou <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Added Fixes: ]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: chenhuacai

drivers/acpi/Kconfig

@@ -135,10 +135,10 @@ config ACPI_REV_OVERRIDE_POSSIBLE
 config ACPI_EC
 	bool "Embedded Controller"
 	depends on HAS_IOPORT
-	default X86
+	default X86 || LOONGARCH
 	help
 	  This driver handles communication with the microcontroller
-	  on many x86 laptops and other machines.
+	  on many x86/LoongArch laptops and other machines.
 
 config ACPI_EC_DEBUGFS
 	tristate "EC read/write access through /sys/kernel/debug/ec"

drivers/platform/loongarch/Kconfig

@@ -18,7 +18,7 @@ if LOONGARCH_PLATFORM_DEVICES
 
 config LOONGSON_LAPTOP
 	tristate "Generic Loongson-3 Laptop Driver"
-	depends on ACPI
+	depends on ACPI_EC
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on INPUT
 	depends on MACH_LOONGSON64