linux-kernel - Re: [PATCH] spi: imx: enable runtime pm support

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Date:   Fri, 13 Nov 2020 08:26:07 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Clark Wang <xiaoning.wang@....com>,
        Mark Brown <broonie@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        NXP Linux Team <linux-imx@....com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-spi <linux-spi@...r.kernel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH] spi: imx: enable runtime pm support

Hi Nikita,

On Fri, Nov 13, 2020 at 6:18 AM Nikita Shubin <nikita.shubin@...uefel.me> wrote:
>
> Hello Clark,
>
> This patch breaks spi-imx on imx7d.
> Toradex Colibri imx7d spi reports with:
>
>     [    4.258468] inv-mpu6000-spi spi2.0: I/O Error in PIO
>     [    4.264269] inv-mpu6000-spi spi2.0: SPI transfer failed: -110
>     [    4.264305] spi_master spi2: failed to transfer one message from queue
>
> We are using spi-imx with dma.
>
> Reverting your patch fixes this issue.
>
> The baseline commit 951cbbc386ff01b50da4f46387e994e81d9ab431 (tag: v5.9.8, stable/linux-5.9.y)
>
> Could you please give some comments on this issue ?

Could you please try this patch from Sascha?
https://lkml.org/lkml/2020/10/12/981