linux-kernel - Re: [PATCH v2] media: imx-jpeg: Leave a blank space before the configuration data

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Message-ID: <CAOMZO5D-gUdoTx3hLmZE2EeYfun-g2xLx6J4tNTSZd-yKCLgXA@mail.gmail.com>
Date:   Fri, 27 May 2022 08:11:37 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Ming Qian <ming.qian@....com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        mirela.rabulea@....nxp.com,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        linux-media <linux-media@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2] media: imx-jpeg: Leave a blank space before the
 configuration data

Hi Ming,

On Fri, May 27, 2022 at 7:25 AM Ming Qian <ming.qian@....com> wrote:
>
> There is a hardware bug that it will load
> the first 128 bytes of configuration data twice,
> it will led to some configure error.
> so shift the configuration data 128 bytes,
> and make the first 128 bytes all zero,
> then hardware will load the 128 zero twice,
> and ignore them as garbage.
> then the configuration data can be loaded correctly
>
> Signed-off-by: Ming Qian <ming.qian@....com>
> Reviewed-by: Mirela Rabulea <mirela.rabulea@....com>
> Reviewed-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>

Fixes tag?