[PATCH 20/23 v2] ARM: u300: add SPI PL022 to the device tree

Linus Walleij linus.walleij at linaro.org
Thu May 2 12:21:30 EDT 2013


On Thu, May 2, 2013 at 5:26 PM, Arnd Bergmann <arnd at arndb.de> wrote:
> On Thursday 02 May 2013, Linus Walleij wrote:
>> From: Linus Walleij <linus.walleij at linaro.org>
>>
>> This registers the PL022 PrimeCell from the U300 device
>> tree. We make a new copy of the platform data for the
>> device tree boot path, as the old platform data is in an
>> older file which will be going away.
>>
>> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
>
> Why do you need both the platform data and the DT description?

This is because the device-tree DMA support for PL022 has
not yet been merged upstream, so it still has to come from
platform data instead.

If/when there is a branch in ARM SoC that has that patch in place
(and I remember reviewing and ACKing it) I can rebase on that
and drop the platform data.

The same goes for PL011 and MMCI platform data actually...

Yours,
Linus Walleij



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