linux-kernel - Re: [PATCH] mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read

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Message-ID: <CABe79T5hKmn49cKEy-KdMQ-S5HMFuhextddV=D_YY+6_QwEPUQ@mail.gmail.com>
Date:   Mon, 22 May 2017 17:22:55 +0530
From:   Srinath Mannam <srinath.mannam@...adcom.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Jon Mason <jonmason@...adcom.com>,
        BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
        linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: sdhci-iproc: suppress spurious interrupt with
 Multiblock read

On Fri, May 19, 2017 at 11:55 AM, Adrian Hunter <adrian.hunter@...el.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@...adcom.com>
>> Reviewed-by: Ray Jui <ray.jui@...adcom.com>
>> Reviewed-by: Scott Branden <scott.branden@...adcom.com>
>
> Acked-by: Adrian Hunter <adrian.hunter@...el.com>

Thanks Adrian...

Will it be possible to take this for Linux-4.12??

Regards,
Srinath