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From:   Fabio Estevam <festevam@gmail.com>
Date:   Tue, 18 Jun 2019 11:02:18 -0300
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Subject: Re: [IMX] [DRM]: suspend/resume support
To:     Pintu Agarwal <pintu.ping@gmail.com>
Cc:     open list <linux-kernel@vger.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@lists.infradead.org>,
        Kernelnewbies <kernelnewbies@kernelnewbies.org>,
        linux-pm@vger.kernel.org
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Hi Pintu,

On Mon, Jun 17, 2019 at 10:50 AM Pintu Agarwal <pintu.ping@gmail.com> wrote:
>
> Hi All,
>
> I am trying to implement suspend/resume functionality to to imx-hdmi driver:
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/gpu/drm/imx/dw_hdmi-imx.c?h=v4.9.181

Please test a recent kernel, such as 5.1.11. I recall that last time
you reported an issue with the dw hdmi you were running kernel 3.10
with backported patches from 4.9.

Just tried suspend/resume on a imx6q board and HDMI behaves correctly.