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Date:   Fri, 1 Mar 2019 17:45:06 +0100
From:   Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
To:     Christoph Muellner <christoph.muellner@...obroma-systems.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, heiko@...ech.de,
        shawn.lin@...k-chips.com, ulf.hansson@...aro.org,
        adrian.hunter@...el.com, Michal Simek <michal.simek@...inx.com>,
        Douglas Anderson <dianders@...omium.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Lin Huang <hl@...k-chips.com>, Randy Li <ayaka@...lik.info>,
        Tony Xie <tony.xie@...k-chips.com>,
        Vicente Bergas <vicencb@...il.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Klaus Goger <klaus.goger@...obroma-systems.com>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH 2/3] dt-bindings: mmc: Add a new property
 disable-cqe-dcmd.



> On 01.03.2019, at 17:43, Christoph Muellner <christoph.muellner@...obroma-systems.com> wrote:
> 
> This patch documents the new proprty disable-cqe-dcmd

typo: proprty -> property

> for the Arasan eMMC 5.1 driver.
> 
> Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.com>
> Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
> ---
> Documentation/devicetree/bindings/mmc/arasan,sdhci.txt | 4 ++++
> 1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> index 1edbb049cccb..ec699bf98b7c 100644
> --- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> +++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> @@ -44,6 +44,10 @@ Optional Properties:
>     properly. Test mode can be used to force the controller to function.
>   - xlnx,int-clock-stable-broken: when present, the controller always reports
>     that the internal clock is stable even when it is not.
> +  - disable-cqe-dcmd: The eMMC 5.1 standard specifies direct commands (DCMDs)
> +    as part of the command queue engine (CQE). On controllers with a CQHCI,
> +    such as the Arasan eMMC 5.1 host controller, the driver has to enable DCMDs.
> +    This is done unless disable-cqe-dcmd is specified.
> 
> Example:
> 	sdhci@...00000 {
> -- 
> 2.11.0
> 

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