[RFC PATCH 2/5] dmaengine: allow sun6i-dma for more SoCs

[Andre Przywara]

Hi,

On 24/11/16 04:16, Chen-Yu Tsai wrote:
> Hi,
> 
> On Thu, Nov 24, 2016 at 9:17 AM, Andre Przywara <andre.przywara at arm.com> wrote:
>> The sun6i DMA driver is used in the Allwinner A64 and H5 SoC, which
>> have arm64 capable cores. Add the generic sunxi config symbol to allow
>> the driver to be selected by arm64 Kconfigs, which don't feature
>> SoC specific MACH_xxxx configs.
>>
>> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
>> ---
>>  drivers/dma/Kconfig | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
>> index af63a6b..003c284 100644
>> --- a/drivers/dma/Kconfig
>> +++ b/drivers/dma/Kconfig
>> @@ -157,7 +157,7 @@ config DMA_SUN4I
>>
>>  config DMA_SUN6I
>>         tristate "Allwinner A31 SoCs DMA support"
>> -       depends on MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
>> +       depends on MACH_SUN6I || MACH_SUN8I || COMPILE_TEST || ARCH_SUNXI
> 
> AFAIK ARCH_SUNXI encompasses/supersedes MACH_SUN*I.
> (And I don't have to add MACH_SUN9I later :) )

Sure, admittedly it was just a quick hack to get things going.
Actually I don't know why we had a *depend* on those MACH_s before. I
think technically it does not depend on a certain SoC (having the
COMPILE_TEST in there hints on that). So what about:

	depends on ARCH_SUNXI || COMPILE_TEST

and maybe:

	default y if MACH_SUN6I || MACH_SUN8I

Though I see that both multi_v7_defconfig and sunxi_defconfig explicitly
set this, so this wouldn't be needed?

Cheers,
Andre.