Re: [PATCH 2/2] mmc: Test bus-width for old MMC devices
From: Chris Ball
Date: Sat Dec 04 2010 - 23:02:47 EST
Hi Takashi, Philip,
On Wed, Nov 24, 2010 at 07:21:14AM +0100, Takashi Iwai wrote:
> From: Aries Lee <arieslee@xxxxxxxxxxx>
>
> Some old MMC devices fail with the 4/8 bits the driver tries to use
> exclusively. This patch adds a test for the given bus setup and falls
> back to the lower bit mode (until 1-bit mode) when the test fails.
>
> [Major rework and refactoring by tiwai]
>
> Signed-off-by: Aries Lee <arieslee@xxxxxxxxxxx>
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
We have two independent patches for performing MMC bus-width testing now:
https://patchwork.kernel.org/patch/351781/
https://patchwork.kernel.org/patch/361702/
I'm planning on taking Takashi's since it looks a little cleaner; Philip,
please could you take a look at Takashi's patch and add anything you
think should be present from your own patch as a new incremental patch?
Thanks very much,
- Chris.
--
Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/>
One Laptop Per Child
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