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From: Christopher Obbard <chris.obbard@collabora.com>
To: linux-kernel@vger.kernel.org
Cc: Daniel Scally <dan.scally@ideasonboard.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	kernel@collabora.com,
	Christopher Obbard <chris.obbard@collabora.com>,
	Conor Dooley <conor+dt@kernel.org>,
	Fabio Estevam <festevam@gmail.com>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Rob Herring <robh@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>,
	devicetree@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 0/1] Enable HDMI output support on the Debix Model A SBC
Date: Mon, 15 Apr 2024 12:41:26 +0100	[thread overview]
Message-ID: <20240415114135.25473-1-chris.obbard@collabora.com> (raw)

This series brings up the HDMI output on the Debix Model A SBC.

With support for the HDMI transmitter for the i.MX8MP SoC now merged[0],
we can now enable the HDMI output on the Debix Model A SBC.

The pinctrl values were blindly taken from the downstream BSP[1] and should
be checked by someone who knows this platform better than myself.

Also, with a 4K display there were a drm error with no output on the
display, but this error did not occur with a 1080P display:

   imx-lcdif 32fc6000.display-controller: [drm] *ERROR* fbdev-dma: Failed to setup generic emulation (ret=-12)

It would be interesting to see if this error is present for others on a
different i.MX8MP device. I didn't have time to check this further and I
assume the issue to be in the driver rather than specific to this SBC, so
should not block this patch, but please correct me if I am wrong.

[0]: https://lore.kernel.org/all/20240227220444.77566-1-aford173@gmail.com/
[1]: https://github.com/debix-tech/linux/blob/debix/arch/arm64/boot/dts/freescale/imx8mp-debix-io-board.dts#L1025


Christopher Obbard (1):
  arm64: dts: imx8mp-debix-model-a: Add HDMI output support

 .../dts/freescale/imx8mp-debix-model-a.dts    | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

-- 
2.43.0


             reply	other threads:[~2024-04-15 11:41 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-15 11:41 Christopher Obbard [this message]
2024-04-15 11:41 ` [PATCH v1 1/1] arm64: dts: imx8mp-debix-model-a: Add HDMI output support Christopher Obbard
2024-04-15 15:08   ` Kieran Bingham
2024-04-15 16:35     ` Laurent Pinchart
2024-04-15 17:07       ` Christopher Obbard

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