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  • , "mripard@kernel.org" , Sandor Yu Cc: "kernel@pengutronix.de" , dl-linux-imx , Oliver Brown , "sam@ravnborg.org" Subject: Re: [PATCH v20 0/8] Initial support Cadence MHDP8501(HDMI/DP) for i.MX8MQ Date: Tue, 07 Jan 2025 17:11:18 +0100 Message-ID: <7783214.EvYhyI6sBW@steina-w> Organization: TQ-Systems GmbH In-Reply-To: References: <2381464.ElGaqSPkdT@steina-w> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-Last-TLS-Session-Version: TLSv1.3 Hi, Am Dienstag, 7. Januar 2025, 15:42:56 CET schrieb Sandor Yu: > Hi Alexander >=20 > It may cause by the first preferred mode in EDID is not supported by driv= er. > Please use modetest or other user application to change the video mode to= CTA standard modes. > Such as148.5MHz 1080p60 or 594MHz 3840x2160p60. No, the EDID does not affect the issue. I resurrected series v14 and HDMI does work without any issues at 1920x1080. If I can find a time slot maybe I can check which series version regresses. Best regards, Alexander >=20 > > > > 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 | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany > > Amtsgericht M=FCnchen, HRB 105018 > > Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider > > http://www.tq/ > > -group.com%2F&data=3D05%7C02%7CSandor.yu%40nxp.com%7C734ea27ba98 > > 140b7483e08dd2eed1276%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0% > > 7C0%7C638718317967624410%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU > > 1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIs > > IldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=3D1HdQdbye9p5AHoT7JCF3Md% > > 2FB9k9tyN%2FW25YKCEngvWM%3D&reserved=3D0 > > >=20 >=20 >=20 =2D-=20 TQ-Systems GmbH | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht M=FCnchen, HRB 105018 Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider http://www.tq-group.com/