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Date:   Sun, 31 Jan 2021 22:15:46 -0300
From:   Fabio Estevam <>
To:     Dima Azarkin <>
Cc:     Rob Herring <>, Shawn Guo <>,
        Sascha Hauer <>,
        Pengutronix Kernel Team <>,
        NXP Linux Team <>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        linux-kernel <>,
        Christian Hewitt <>
Subject: Re: [PATCH] ARM: dts: imx6qdl-wandboard: add scl/sda gpios
 definitions for i2c bus recovery

On Sun, Jan 31, 2021 at 12:55 PM Dima Azarkin <> wrote:
> The i2c bus on imx6qdl-wandboard has intermittent issues where SDA can freeze
> on low level at the end of transaction so the bus can no longer work. This
> impacts reading of EDID data leading to incorrect TV resolution and no audio.
> This scenario is improved by adding scl/sda gpios definitions to implement the
> i2c bus recovery mechanism.
> Signed-off-by: Dima Azarkin <>

Reviewed-by: Fabio Estevam <>

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