From: Marek Vasut <marex@denx.de>
To: Francesco Dolcini <francesco@dolcini.it>
Cc: linux-arm-kernel@lists.infradead.org,
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,
kernel@dh-electronics.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mp: Enable HDMI on i.MX8MP DHCOM PDK2 and PDK3
Date: Thu, 16 May 2024 13:14:04 +0200 [thread overview]
Message-ID: <76b3cee8-1fe3-4192-b8c9-7a9c2b7165f0@denx.de> (raw)
In-Reply-To: <20240516080008.GA9338@francesco-nb>
On 5/16/24 10:00 AM, Francesco Dolcini wrote:
> Hello Marek,
Hi,
> On Tue, May 14, 2024 at 03:06:42AM +0200, Marek Vasut wrote:
>> Enable HDMI output on i.MX8MP DHCOM PDK2 and PDK3. The I2C5 on PDK2 and
>> I2C mux port 1 on PDK3 respectively are used in regular I2C mode instead
>> of HDMI DDC mode to permit connection of other I2C devices on those buses.
>
> Are you able to read the HDMI EDID with such configuration? I have the
> patch ready for verdin imx8mp, I just did not have time to figure out
> this last details.
Yes with ddc-i2c-bus in hdmi_tx{} node, no with ddc-i2c-bus in connector
node. Maybe that's what you're running into ? The DW HDMI core needs the
ddc-i2c-bus property in hdmi_tx{} node if you use non-native I2C bus for
the DDC channel.
next prev parent reply other threads:[~2024-05-16 11:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-14 1:06 [PATCH] arm64: dts: imx8mp: Enable HDMI on i.MX8MP DHCOM PDK2 and PDK3 Marek Vasut
2024-05-14 12:53 ` Rob Herring (Arm)
2024-05-14 22:18 ` Marek Vasut
2024-05-16 8:00 ` Francesco Dolcini
2024-05-16 11:14 ` Marek Vasut [this message]
2024-05-16 11:36 ` Ahmad Fatoum
2024-05-16 11:44 ` Marek Vasut
2024-05-16 11:46 ` Ahmad Fatoum
2024-05-16 12:07 ` Alexander Stein
2024-05-16 11:57 ` Francesco Dolcini
2024-06-15 8:06 ` Shawn Guo
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