[PATCH v3 1/5] soc: loongson: loongson2_pm: Add dependency for INPUT

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Since commit 67694c076bd7 ("soc: loongson2_pm: add power management
support"), the Loongson-2K PM driver was added, but it didn't update the
Kconfig entry for the INPUT dependency, leading to build errors:

/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld:
drivers/soc/loongson/loongson2_pm.o: in function `loongson2_power_button_init':
/work/lnx/next/linux-next-20230825/LOONG64/../drivers/soc/loongson/loongson2_pm.c:101:(.text+0x350): undefined reference to `input_allocate_device'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld:
/work/lnx/next/linux-next-20230825/LOONG64/../drivers/soc/loongson/loongson2_pm.c:109:(.text+0x3dc): undefined reference to `input_set_capability'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld:
/work/lnx/next/linux-next-20230825/LOONG64/../drivers/soc/loongson/loongson2_pm.c:111:(.text+0x3e4): undefined reference to `input_register_device'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld:
/work/lnx/next/linux-next-20230825/LOONG64/../drivers/soc/loongson/loongson2_pm.c:125:(.text+0x3fc): undefined reference to `input_free_device'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld: drivers/soc/loongson/loongson2_pm.o: in function `input_report_key':
/work/lnx/next/linux-next-20230825/LOONG64/../include/linux/input.h:425:(.text+0x58c): undefined reference to `input_event'

Also, since this driver can only be built-in, it fails to link when the
INPUT is in a loadable module, so we should update the Kconfig entry to
depend on INPUT=y.

Fixes: 67694c076bd7 ("soc: loongson2_pm: add power management support")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
---
 drivers/soc/loongson/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/loongson/Kconfig b/drivers/soc/loongson/Kconfig
index 314e13bb3e01..368344943a93 100644
--- a/drivers/soc/loongson/Kconfig
+++ b/drivers/soc/loongson/Kconfig
@@ -20,6 +20,7 @@ config LOONGSON2_GUTS
 config LOONGSON2_PM
 	bool "Loongson-2 SoC Power Management Controller Driver"
 	depends on LOONGARCH && OF
+	depends on INPUT=y
 	help
 	  The Loongson-2's power management controller was ACPI, supports ACPI
 	  S2Idle (Suspend To Idle), ACPI S3 (Suspend To RAM), ACPI S4 (Suspend To
-- 
2.39.3




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