linux-kernel - Re: [PATCH 3/5] arm64: dts: imx8mp-msc-sm2s-ep1: Add HDMI connector

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Message-ID: <4d1c434e-e7bd-4e53-b110-1f26eb06c59c@nxp.com>
Date: Fri, 18 Oct 2024 17:00:40 +0800
From: Liu Ying <victor.liu@....com>
To: Marek Vasut <marex@...x.de>, devicetree@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
 festevam@...il.com, andrzej.hajda@...el.com, neil.armstrong@...aro.org,
 rfoss@...nel.org, Laurent.pinchart@...asonboard.com, jonas@...boo.se,
 jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
 mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com, simona@...ll.ch,
 stefan@...er.ch, dmitry.baryshkov@...aro.org
Subject: Re: [PATCH 3/5] arm64: dts: imx8mp-msc-sm2s-ep1: Add HDMI connector

On 10/18/2024, Marek Vasut wrote:
> On 10/18/24 8:48 AM, Liu Ying wrote:
>> Add a HDMI connector to connect with i.MX8MP HDMI TX output.
>> This is a preparation for making the i.MX8MP LCDIF driver use
>> drm_bridge_connector which requires the DRM_BRIDGE_ATTACH_NO_CONNECTOR
>> flag.  With that flag, the DW HDMI bridge core driver would
>> try to attach the next bridge which is the HDMI connector.
>>
>> Signed-off-by: Liu Ying <victor.liu@....com>
>> ---
>>   .../dts/freescale/imx8mp-msc-sm2s-ep1.dts     | 19 +++++++++++++++++++
>>   1 file changed, 19 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
>> index 83194ea7cb81..b776646a258a 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
>> +++ b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
>> @@ -15,6 +15,17 @@ / {
>>                "avnet,sm2s-imx8mp-14N0600E", "avnet,sm2s-imx8mp",
>>                "fsl,imx8mp";
>>   +    hdmi-connector {
>> +        compatible = "hdmi-connector";
>> +        type = "a";
> Shouldn't this also have a 'label' property ?

'label' property is not required by hdmi-connector.yaml and there
are in-tree hdmi-connector nodes that haven't got it.
I tried to find schematics for the board online, but failed.
I don't have the board to see the label printed in silk layer, either.

If anyone can provide a valid label name, I may add it.

-- 
Regards,
Liu Ying