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From:   Adam Ford <aford173@gmail.com>
Date:   Mon, 1 Aug 2022 20:39:12 -0500
Message-ID: <CAHCN7xL2w7a=SeXbwcNNxqb3kpRV9Bs0AbK0Nmjbj+dm0NDaVA@mail.gmail.com>
Subject: Re: imx8mm lcdif->dsi->adv7535 no video, no errors
To:     Fabio Estevam <festevam@gmail.com>
Cc:     Marco Felsch <m.felsch@pengutronix.de>,
        Marek Vasut <marex@denx.de>, Stefan Agner <stefan@agner.ch>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Jonas Karlman <jonas@kwiboo.se>,
        David Airlie <airlied@linux.ie>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Neil Armstrong <narmstrong@baylibre.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Robert Foss <robert.foss@linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Andrzej Hajda <andrzej.hajda@intel.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        arm-soc <linux-arm-kernel@lists.infradead.org>,
        Jagan Teki <jagan@amarulasolutions.com>, robert.chiras@nxp.com,
        laurentiu.palcu@nxp.com
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On Mon, Aug 1, 2022 at 6:12 PM Fabio Estevam <festevam@gmail.com> wrote:
>
> Hi Marco,
>
> On Mon, Aug 1, 2022 at 7:55 PM Marco Felsch <m.felsch@pengutronix.de> wrote:
>
> > Question is, does your setup work for all modes after applying your
> > patches and without using the NXP-downstream porches settings? We also
>
> Without Frieder's patch:
> "drm/exynos: Fix horizontal timing settings in MHPORCH/MSYNC
> registers", I get no HDMI output.
>

I managed to get my HDMI output working. I had the lanes set to 2
instead of 4.  Once I switched to 4-lanes, the monitor came up in
1080p.  I haven't yet been able to get other modes to work.

adam
> Regards,
>
> Fabio Estevam