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SubjectRe: [PATCH 09/21] ARM: davinci: Add set dma_mask to eDMA devices
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On 09/10/2015 11:45 AM, Arnd Bergmann wrote:
> On Thursday 10 September 2015 11:37:38 Peter Ujfalusi wrote:
>> +static u64 da8xx_edma0_dmamask = DMA_BIT_MASK(32);
>> +
>> static struct platform_device da8xx_edma0_device = {
>> .name = "edma",
>> .id = 0,
>> .dev = {
>> .platform_data = &da8xx_edma0_pdata,
>> + .dma_mask = &da8xx_edma0_dmamask,
>> + .coherent_dma_mask = DMA_BIT_MASK(32),
>> },
>> .num_resources = ARRAY_SIZE(da8xx_edma0_resources),
>> .resource = da8xx_edma0_resources,
>> };
>
> While this is technically correct for all I can tell, could you
> convert it to use __initconst platform_device_info and
> platform_device_register_full() instead?

Yes, I can do that for the eDMAs. I was also thought about this, but looking
around the mach-davinci, I thought to stick with this mode.

> statically declaring platform_devices has been frowned upon for a long
> time (even though a lot of arm platforms still do it), and statically
> declaring the dma mask seems worse to me (and yes, I realize we also
> do that elsewhere).

Will be part of v2.

--
Péter


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