lkml.org 
[lkml]   [2017]   [May]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
On Mon, May 22, 2017 at 5:31 PM, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> On 22 May 2017 at 13:52, Srinath Mannam <srinath.mannam@broadcom.com> wrote:
>> On Fri, May 19, 2017 at 11:55 AM, Adrian Hunter <adrian.hunter@intel.com> wrote:
>>> On 18/05/17 19:57, Srinath Mannam wrote:
>>>> The stingray SDHCI hardware supports ACMD12 and automatically
>>>> issues after multi block transfer completed.
>>>>
>>>> If ACMD12 in SDHCI is disabled, spurious tx done interrupts are seen
>>>> on multi block read command with below error message:
>>>>
>>>> Got data interrupt 0x00000002 even though no data
>>>> operation was in progress.
>>>>
>>>> This patch uses SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 to enable
>>>> ACM12 support in SDHCI hardware and suppress spurious interrupt.
>>>>
>>>> Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
>>>> Reviewed-by: Ray Jui <ray.jui@broadcom.com>
>>>> Reviewed-by: Scott Branden <scott.branden@broadcom.com>
>>>
>>> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
>>
>> Thanks Adrian...
>>
>> Will it be possible to take this for Linux-4.12??
>
> It's queued for 4.13, however are you saying it's a regression for
> 4.12? Then what commit fixes it?
>
> Perhaps you even want this to go stable?
>
> Kind regards
> Uffe

Yes, this is regression for 4.12.
Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver")
Yes we want this to go in stable.

Thank you.

Regards,
Srinath.

\
 
 \ /
  Last update: 2017-05-22 15:33    [W:0.053 / U:0.240 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site