Re: [PATCH v2, 2/2] mmc: sdhci-pltfm: enable interrupt mode to detect card

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On 15 May 2015 at 04:46, Yangbo Lu <yangbo.lu@xxxxxxxxxxxxx> wrote:
> Enable interrupt mode to detect card instead of polling mode
> for P1020/P4080/P5020/P5040/T1040 by removing the quirk
> SDHCI_QUIRK_BROKEN_CARD_DETECTION. This could improve data
> transferring performance and avoid the call trace caused by
> polling card status sometime.
>
> Signed-off-by: Yangbo Lu <yangbo.lu@xxxxxxxxxxxxx>
> ----
> Changes for v2:
>         - Aligned all "of_device_is_compatibles" in same column
> ---
>  drivers/mmc/host/sdhci-pltfm.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index c5b01d6..97128f3 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -102,6 +102,13 @@ void sdhci_get_of_property(struct platform_device *pdev)
>                     of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
>                         host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
>
> +               if (of_device_is_compatible(np, "fsl,p5040-esdhc") ||
> +                   of_device_is_compatible(np, "fsl,p5020-esdhc") ||
> +                   of_device_is_compatible(np, "fsl,p4080-esdhc") ||
> +                   of_device_is_compatible(np, "fsl,p1020-esdhc") ||
> +                   of_device_is_compatible(np, "fsl,t1040-esdhc"))
> +                       host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;

This looks strange to me.

Why not just change the DT files for the relevant platforms to not
enable "broken-cd"?

Kind regards
Uffe
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