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Groups > linux.kernel > #1509823

Re: [RFC 1/2] mmc: sdhci: dt: Add device tree property sdhci-cap-speed-modes-broken

From Rob Herring <robh@kernel.org>
Newsgroups linux.kernel
Subject Re: [RFC 1/2] mmc: sdhci: dt: Add device tree property sdhci-cap-speed-modes-broken
Date 2016-10-26 23:10 +0200
Message-ID <swDCp-Ng-7@gated-at.bofh.it> (permalink)
References <stJO2-7sS-5@gated-at.bofh.it> <stJO2-7sS-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Oct 18, 2016 at 04:05:35PM -0500, Zach Brown wrote:
> On some systems the sdhci capabilty registers are incorrect for one
> reason or another.
> 
> The sdhci-cap-speed-modes-broken property will let the driver know that
> the sdhci capability registers should not be relied on for speed modes.
> Instead the driver should check the mmc generic DT bindings.
> 
> Signed-off-by: Zach Brown <zach.brown@ni.com>
> ---
>  Documentation/devicetree/bindings/mmc/mmc.txt | 3 +++
>  1 file changed, 3 insertions(+)

Acked-by: Rob Herring <robh@kernel.org>

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Thread

[RFC 0/2] Ignore capability registers when it comes to speeds and use DT binding instead. Zach Brown <zach.brown@ni.com> - 2016-10-18 23:10 +0200
  [RFC 1/2] mmc: sdhci: dt: Add device tree property sdhci-cap-speed-modes-broken Zach Brown <zach.brown@ni.com> - 2016-10-18 23:10 +0200
    Re: [RFC 1/2] mmc: sdhci: dt: Add device tree property  sdhci-cap-speed-modes-broken Rob Herring <robh@kernel.org> - 2016-10-26 23:10 +0200
  [RFC 2/2] mmc: sdhci: Ignore capability register when it comes to speeds and use DT binding instead when sdhci-cap-speed-modes-broken is set. Zach Brown <zach.brown@ni.com> - 2016-10-18 23:10 +0200
    Re: [RFC 2/2] mmc: sdhci: Ignore capability register when it comes to  speeds and use DT binding instead when sdhci-cap-speed-modes-broken is set. Ulf Hansson <ulf.hansson@linaro.org> - 2016-10-19 16:40 +0200

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