Re: [rtc-linux] Re: [RFC 09/15] media: platform: Add missing MFD_SYSCON dependency on HAS_IOMEM

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2016-03-03 19:57 GMT+09:00 Arnd Bergmann <arnd@xxxxxxxx>:
> On Thursday 03 March 2016 17:03:35 Krzysztof Kozlowski wrote:
>> diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
>> index 201f5c296a95..e5931e434fa2 100644
>> --- a/drivers/media/platform/Kconfig
>> +++ b/drivers/media/platform/Kconfig
>> @@ -79,6 +79,7 @@ config VIDEO_OMAP3
>>         depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3
>>         depends on HAS_DMA && OF
>>         depends on OMAP_IOMMU
>> +       depends on HAS_IOMEM    # For MFD_SYSCON
>>         select ARM_DMA_USE_IOMMU
>>         select VIDEOBUF2_DMA_CONTIG
>
> This is only built for OMAP3, so we won't get here without HAS_IOMEM

Indeed.

>
>>         select MFD_SYSCON
>> diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
>> index 57d42c6172c5..c4317b99d257 100644
>> --- a/drivers/media/platform/exynos4-is/Kconfig
>> +++ b/drivers/media/platform/exynos4-is/Kconfig
>> @@ -17,6 +17,7 @@ config VIDEO_S5P_FIMC
>>         tristate "S5P/EXYNOS4 FIMC/CAMIF camera interface driver"
>>         depends on I2C
>>         depends on HAS_DMA
>> +       depends on HAS_IOMEM    # For MFD_SYSCON
>>         select VIDEOBUF2_DMA_CONTIG
>>         select V4L2_MEM2MEM_DEV
>
> This  is guarded by HAS_DMA, which implies HAS_IOMEM afaik.

Looking at Kconfigs - no, it is not implied (or am I missing
something)... and sometimes dependency on HAS_IOMEM is next to
HAS_DMA.

BR,
Krzysztof
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