Re: [PATCH 2/2] dw_dmac: max_mem_width limits value forSRC/DST_TR_WID register

From: Andrew Morton
Date: Fri Aug 31 2012 - 19:49:37 EST


On Mon, 27 Aug 2012 04:41:04 +0800
Hein Tibosch <hein_tibosch@xxxxxxxx> wrote:

> The dw_dmac driver was earlier adapted to do 64-bit transfers
> on the memory side (https://lkml.org/lkml/2012/1/18/52)
> This works on ARM platforms but for AVR32 (AP700x) the maximum
> allowed transfer size is 32-bits.
> This patch allows the arch to set a new slave property
> max_mem_width to limit the size.
> Allowable values for dw_dma_slave::max_mem_width are:
>

This patch fails to apply to mainline and to linux-next and I can't
work out how to make it to apply to either. And "avr32-linux:
at32ap700x: set DMA slave properties for MCI dw_dmac" is said to depend
on this patch.

All confused, giving up.
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