[1/5] soc: loongson: loongson_pm2: add dependency for INPUT

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, so
update the Kconfig entry to depend on INPUT.

/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'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld: drivers/soc/loongson/loongson2_pm.o: in function `input_sync':
/work/lnx/next/linux-next-20230825/LOONG64/../include/linux/input.h:450:(.text+0x5a0): undefined reference to `input_event'
/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+0x5b4): undefined reference to `input_event'
/opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld: drivers/soc/loongson/loongson2_pm.o: in function `input_sync':
/work/lnx/next/linux-next-20230825/LOONG64/../include/linux/input.h:450:(.text+0x5c8): undefined reference to `input_event'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
---
 drivers/soc/loongson/Kconfig | 1 +
 1 file changed, 1 insertion(+)

Hi--

On 8/28/23 05:38, Binbin Zhou wrote:
> 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, so
> update the Kconfig entry to depend on INPUT.
> 
> /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'
> /opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld: drivers/soc/loongson/loongson2_pm.o: in function `input_sync':
> /work/lnx/next/linux-next-20230825/LOONG64/../include/linux/input.h:450:(.text+0x5a0): undefined reference to `input_event'
> /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+0x5b4): undefined reference to `input_event'
> /opt/crosstool/gcc-13.2.0-nolibc/loongarch64-linux/bin/loongarch64-linux-ld: drivers/soc/loongson/loongson2_pm.o: in function `input_sync':
> /work/lnx/next/linux-next-20230825/LOONG64/../include/linux/input.h:450:(.text+0x5c8): undefined reference to `input_event'
> 
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
> ---
>  drivers/soc/loongson/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/soc/loongson/Kconfig b/drivers/soc/loongson/Kconfig
> index 314e13bb3e01..1b57af1e5529 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

In the failing .config file, CONFIG_INPUT=m.
This bool kconfig item is still set/enabled after this patch and the build still fails.

You could use
	depends on INPUT=y

if that is appropriate. I dunno.

>  	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