Re: [PATCH 1/3] mmc: dw_mmc: use slot-gpio to handle cd pin

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jan 14, 2014 at 7:58 AM, Kevin Hilman <khilman@xxxxxxxxxx> wrote:
> On Thu, Jan 9, 2014 at 6:35 AM, Zhangfei Gao <zhangfei.gao@xxxxxxxxxx> wrote:
>> Suggested by Jaehoon: Use slot-gpio to handle cd-gpio
>> Add function dw_mci_of_get_cd_gpio to check "cd-gpios" from dts.
>> mmc_gpio_request_cd and mmc_gpio_get_cd are used to handle cd pin
>>
>> Signed-off-by: Zhangfei Gao <zhangfei.gao@xxxxxxxxxx>
>> Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
>
> The Samsung Arndale board started failing boot from MMC root tests
> starting with next-20140113 and I bisected it down to this patch.
> Reverting this patch on top of next-20140114 gets Arndale booting
> again from MMC.  Is there some supporting DT data that's missing for
> Arndale?

Rather, it looks like this patch changes behaviour and no longer uses
dw_mci_get_cd() to find out if there's a card attached -- it switches
to rely only on GPIO (see the last chunk in the patch). That seems
broken?


-Olof
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux