Re: [PATCH 05/21] ARM: s3c: simplify platform code

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On 24/10/2022 09:32, Arnd Bergmann wrote:
> On Mon, Oct 24, 2022, at 14:29, Krzysztof Kozlowski wrote:
> 
>>> diff --git a/arch/arm/mach-s3c/Kconfig.s3c64xx b/arch/arm/mach-s3c/Kconfig.s3c64xx
>>> index c403d7642f0a..c52c7ce1d8fa 100644
>>> --- a/arch/arm/mach-s3c/Kconfig.s3c64xx
>>> +++ b/arch/arm/mach-s3c/Kconfig.s3c64xx
>>> @@ -15,12 +15,9 @@ menuconfig ARCH_S3C64XX
>>>  	select HAVE_TCM
>>>  	select PLAT_SAMSUNG
>>>  	select PM_GENERIC_DOMAINS if PM
>>> -	select S3C_DEV_NAND if ATAGS
>>>  	select S3C_GPIO_TRACK if ATAGS
>>> -	select S3C2410_WATCHDOG
>>
>> This does not seem right. S3C2410_WATCHDOG is a driver used by all
>> (including Exynos) platforms.
> 
> I don't remember why I removed this line, probably because I
> removed S3C_DEV_WDT after there are no references to that
> symbol left in board files. The watchdog driver is now DT-only
> with cragg6410 being the last remaining board file.
> 
> Ideally we should not 'select' it from here but instead have
> it enabled in the defconfig file, but I agree that would
> be something to do in a separate patch, while the patch here
> should not change the behavior. I'll revert this part.
> 
>>> @@ -121,10 +118,8 @@ config MACH_WLF_CRAGG_6410
>>>  	select S3C_DEV_HSMMC1
>>>  	select S3C_DEV_HSMMC2
>>>  	select S3C_DEV_I2C1
>>> -	select S3C_DEV_RTC
>>
>> This as well.
> 
> I'm fairly sure this can be removed along with S3C_DEV_WDT,
> S3C_DEV_I2C[2-7], S3C_DEV_NAND, and S3C_DEV_ONENAND
> as I remove the symbols due to the lack of references
> from cragg6410.

Yes, you are right. This can be dropped.

> 
> I folded in this fixup now:
> 
> --- a/arch/arm/mach-s3c/Kconfig.s3c64xx
> +++ b/arch/arm/mach-s3c/Kconfig.s3c64xx
> @@ -16,8 +16,10 @@ menuconfig ARCH_S3C64XX
>         select PLAT_SAMSUNG
>         select PM_GENERIC_DOMAINS if PM
>         select S3C_GPIO_TRACK if ATAGS
> +       select S3C2410_WATCHDOG
>         select SAMSUNG_ATAGS if ATAGS
>         select SAMSUNG_WAKEMASK if PM
> +       select WATCHDOG


Looks ok.

Best regards,
Krzysztof




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