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References: <20210713195416.277153-1-oleksandr.suvorov@toradex.com>
In-Reply-To: <20210713195416.277153-1-oleksandr.suvorov@toradex.com>
From:   Fabio Estevam <festevam@gmail.com>
Date:   Tue, 13 Jul 2021 17:09:48 -0300
Message-ID: <CAOMZO5D+4Dg1q+fxM7Dfz_y1f1wpE=kZx7ew+bdkBiQdWB7YCA@mail.gmail.com>
Subject: Re: [PATCH] ARM: dts: colibri-imx6ull: limit SDIO clock to 25MHz
To:     Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Cc:     Linux Next Mailing List <linux-next@vger.kernel.org>,
        NXP Linux Team <linux-imx@nxp.com>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Rob Herring <robh+dt@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Shawn Guo <shawnguo@kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@lists.infradead.org>,
        linux-kernel <linux-kernel@vger.kernel.org>
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Hi Oleksandr,

On Tue, Jul 13, 2021 at 4:54 PM Oleksandr Suvorov
<oleksandr.suvorov@toradex.com> wrote:
>
> NXP and AzureWave don't recommend using SDIO bus mode 3.3V@50MHz 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.

What about adding a Fixes tag so that it can go to the stable trees?

Reviewed-by: Fabio Estevam <festevam@gmail.com>