linux-kernel - RE: [EXT] Re: [PATCH v20 0/8] Initial support Cadence MHDP8501(HDMI/DP) for i.MX8MQ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID:
 <PAXPR04MB94483B3704FB62E12A009390F4112@PAXPR04MB9448.eurprd04.prod.outlook.com>
Date: Tue, 7 Jan 2025 14:42:56 +0000
From: Sandor Yu <sandor.yu@....com>
To: Alexander Stein <alexander.stein@...tq-group.com>,
	"dmitry.baryshkov@...aro.org" <dmitry.baryshkov@...aro.org>,
	"andrzej.hajda@...el.com" <andrzej.hajda@...el.com>,
	"neil.armstrong@...aro.org" <neil.armstrong@...aro.org>, Laurent Pinchart
	<laurent.pinchart@...asonboard.com>, "jonas@...boo.se" <jonas@...boo.se>,
	"jernej.skrabec@...il.com" <jernej.skrabec@...il.com>, "airlied@...il.com"
	<airlied@...il.com>, "daniel@...ll.ch" <daniel@...ll.ch>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"shawnguo@...nel.org" <shawnguo@...nel.org>, "s.hauer@...gutronix.de"
	<s.hauer@...gutronix.de>, "festevam@...il.com" <festevam@...il.com>,
	"vkoul@...nel.org" <vkoul@...nel.org>, "dri-devel@...ts.freedesktop.org"
	<dri-devel@...ts.freedesktop.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-phy@...ts.infradead.org"
	<linux-phy@...ts.infradead.org>, "mripard@...nel.org" <mripard@...nel.org>
CC: "kernel@...gutronix.de" <kernel@...gutronix.de>, dl-linux-imx
	<linux-imx@....com>, Oliver Brown <oliver.brown@....com>, "sam@...nborg.org"
	<sam@...nborg.org>
Subject: RE: [EXT] Re: [PATCH v20 0/8] Initial support Cadence
 MHDP8501(HDMI/DP) for i.MX8MQ

Hi Alexander

It may cause by the first preferred mode in EDID is not supported by driver.
Please use modetest or other user application to change the video mode to CTA standard modes.
Such as148.5MHz 1080p60 or 594MHz 3840x2160p60.

B.R
Sandor

>
> Hi Sandor,
>
> thanks for the updates.
>
> Am Dienstag, 17. Dezember 2024, 07:51:42 CET schrieb Sandor Yu:
> > The patch set initial support Cadence MHDP8501(HDMI/DP) DRM bridge
> > driver and Cadence HDP-TX PHY(HDMI/DP) driver for Freescale i.MX8MQ.
> >
> > The patch set compose of DRM bridge drivers and PHY driver.
> >
> > Both of them need by patch #1 and #3 to pass build.
> >
> > DRM bridges driver patches:
> >   #1: soc: cadence: Create helper functions for Cadence MHDP
> >   #2: drm: bridge: cadence: Update mhdp8546 mailbox access functions
> >   #3: phy: Add HDMI configuration options
> >   #4: dt-bindings: display: bridge: Add Cadence MHDP8501
> >   #5: drm: bridge: Cadence: Add MHDP8501 DP/HDMI driver
> >
> > PHY driver patches:
> >   #1: soc: cadence: Create helper functions for Cadence MHDP
> >   #3: phy: Add HDMI configuration options
> >   #6: dt-bindings: phy: Add Freescale iMX8MQ DP and HDMI PHY
> >   #7: phy: freescale: Add DisplayPort/HDMI Combo-PHY driver for
> > i.MX8MQ
> >
> > i.MX8M/TQMa8Mx DT patches:
> >   #8: Add DT nodes for DCSS/HDMI pipeline
> >   #9: Enable HDMI for TQMa8Mx/MBa8Mx
> >
>
> I gave this version a new try but unfortunately the display stays black.
> Although the display pipeline is intialized and even wayland starts.
> Do you have any idea where to start looking?
>
> Best regards,
> Alexander
> --
> TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
> Amtsgericht München, HRB 105018
> Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
> http://www.tq/
> -group.com%2F&data=05%7C02%7CSandor.yu%40nxp.com%7C734ea27ba98
> 140b7483e08dd2eed1276%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%
> 7C0%7C638718317967624410%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU
> 1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIs
> IldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=1HdQdbye9p5AHoT7JCF3Md%
> 2FB9k9tyN%2FW25YKCEngvWM%3D&reserved=0
>