linux-kernel - Re: [PATCH v3] ARM: dts: imx: Set default tuning step for imx7d usdhc

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Message-ID: <20230730132611.GR151430@dragon>
Date:   Sun, 30 Jul 2023 21:26:11 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Xiaolei Wang <xiaolei.wang@...driver.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, richardcochran@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] ARM: dts: imx: Set default tuning step for imx7d usdhc

On Mon, Jul 24, 2023 at 11:45:10PM +0800, Xiaolei Wang wrote:
> If the tuning step is not set, the tuning step is set to 1.
> For some sd cards, the following Tuning timeout will occur.
> 
> Tuning failed, falling back to fixed sampling clock
> mmc0: Tuning failed, falling back to fixed sampling clock
> 
> So set the default tuning step. This refers to the NXP vendor's
> commit below:
> 
> https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/
> arch/arm/boot/dts/imx7s.dtsi#L1216-L1217
> 
> Fixes: 1e336aa0c025 ("mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting")
> Signed-off-by: Xiaolei Wang <xiaolei.wang@...driver.com>
> Reviewed-by: Fabio Estevam <festevam@...il.com>

Applied, thanks!