linux-kernel - Re: [PATCH v2] ARM: dts: colibri-imx6ull: limit SDIO clock to 25MHz

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Date:   Fri, 23 Jul 2021 10:56:28 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
Cc:     linux-next@...r.kernel.org, Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Stefan Agner <stefan@...er.ch>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ARM: dts: colibri-imx6ull: limit SDIO clock to 25MHz

On Tue, Jul 13, 2021 at 11:21:07PM +0300, Oleksandr Suvorov wrote:
> NXP and AzureWave don't recommend using SDIO bus mode 3.3V@...Hz due
> to noise affecting the wireless throughput. Colibri iMX6ULL uses only
> 3.3V signaling for Wi-Fi module AW-CM276NF.
> 
> Limit the SDIO Clock on Colibri iMX6ULL to 25MHz.
> 
> Fixes: c2e4987e0e02 ("ARM: dts: imx6ull: add Toradex Colibri iMX6ULL support")
> Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
> Reviewed-by: Fabio Estevam <festevam@...il.com>

Applied, thanks!