From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=FROM_EXCESS_BASE64, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC641C5CFC0 for ; Mon, 18 Jun 2018 14:45:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 756772086A for ; Mon, 18 Jun 2018 14:45:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 756772086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=siol.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935270AbeFROpQ convert rfc822-to-8bit (ORCPT ); Mon, 18 Jun 2018 10:45:16 -0400 Received: from mailoutvs37.siol.net ([185.57.226.228]:43381 "EHLO mail.siol.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934711AbeFROpO (ORCPT ); Mon, 18 Jun 2018 10:45:14 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 48BE0520FDB; Mon, 18 Jun 2018 16:45:11 +0200 (CEST) X-Virus-Scanned: amavisd-new at psrvmta10.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta10.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id gsjpoTeyLQXb; Mon, 18 Jun 2018 16:45:10 +0200 (CEST) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 56F41520E89; Mon, 18 Jun 2018 16:45:10 +0200 (CEST) Received: from jernej-laptop.localnet (unknown [194.152.15.144]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPA id 60AF7520FDB; Mon, 18 Jun 2018 16:45:05 +0200 (CEST) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Jagan Teki Cc: Maxime Ripard , Chen-Yu Tsai , Rob Herring , David Airlie , gustavo@padovan.org, maarten.lankhorst@linux.intel.com, Sean Paul , Mark Rutland , dri-devel , devicetree , linux-arm-kernel , linux-kernel , linux-clk , linux-sunxi Subject: Re: [linux-sunxi] [PATCH v2 00/27] Add support for R40 HDMI pipeline Date: Mon, 18 Jun 2018 16:43:56 +0200 Message-ID: <15787507.kzqBcLUy0z@jernej-laptop> In-Reply-To: References: <20180612200036.21483-1-jernej.skrabec@siol.net> <5084905.C41JrL457O@jernej-laptop> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dne ponedeljek, 18. junij 2018 ob 14:58:02 CEST je Jagan Teki napisal(a): > On Thu, Jun 14, 2018 at 10:59 PM, Jernej Škrabec > > wrote: > > Dne četrtek, 14. junij 2018 ob 19:16:46 CEST je Jagan Teki napisal(a): > >> On Thu, Jun 14, 2018 at 8:04 PM, Jernej Škrabec > > > > wrote: > >> > Dne četrtek, 14. junij 2018 ob 09:12:41 CEST je Jagan Teki napisal(a): > >> >> On Wed, Jun 13, 2018 at 1:30 AM, Jernej Skrabec > >> >> > >> > > >> > wrote: > >> >> > This series adds support for R40 HDMI pipeline. It is a bit special > >> >> > than other already supported pipelines because it has additional > >> >> > unit > >> >> > called TCON TOP responsible for relationship configuration between > >> >> > mixers, TCONs and HDMI. Additionally, it has additional gates for > >> >> > DSI > >> >> > and TV TCONs, TV encoder clock settings and pin muxing between LCD > >> >> > and TV encoders. > >> >> > > >> >> > However, it seems that TCON TOP will become a norm, since newer > >> >> > Allwinner SoCs like H6 also have this unit. > >> >> > > >> >> > I tested different possible configurations: > >> >> > - mixer0 <> TCON-TV0 <> HDMI > >> >> > - mixer0 <> TCON-TV1 <> HDMI > >> >> > - mixer1 <> TCON-TV0 <> HDMI > >> >> > - mixer1 <> TCON-TV1 <> HDMI > >> >> > > >> >> > Please review. > >> >> > > >> >> > Best regards, > >> >> > Jernej > >> >> > > >> >> > Changes from v1: > >> >> > - Split DT bindings patch and updated description > >> >> > - Split HDMI PHY patch > >> >> > - Move header file from TCON TOP patch to dt bindings patch > >> >> > - Added Rob reviewed-by tag > >> >> > - Used clk_hw_register_gate() instead of custom gate registration > >> >> > code > >> >> > - Reworked TCON TOP to be part of of-graph. Because of that, a lot > >> >> > of > >> >> > > >> >> > new patches were added. > >> >> > > >> >> > - Droped mixer index quirk patch > >> >> > - Reworked TCON support for TCON TOP > >> >> > - Updated commit messages > >> >> > > >> >> > Jernej Skrabec (27): > >> >> > clk: sunxi-ng: r40: Add minimal rate for video PLLs > >> >> > clk: sunxi-ng: r40: Allow setting parent rate to display related > >> >> > > >> >> > clocks > >> >> > > >> >> > clk: sunxi-ng: r40: Export video PLLs > >> >> > dt-bindings: display: sunxi-drm: Add TCON TOP description > >> >> > drm/sun4i: Add TCON TOP driver > >> >> > drm/sun4i: Fix releasing node when enumerating enpoints > >> >> > drm/sun4i: Split out code for enumerating endpoints in output port > >> >> > drm/sun4i: Add support for traversing graph with TCON TOP > >> >> > drm/sun4i: Don't skip TCONs if they don't have channel 0 > >> >> > dt-bindings: display: sun4i-drm: Add R40 TV TCON description > >> >> > drm/sun4i: tcon: Add support for tcon-top gate > >> >> > drm/sun4i: tcon: Generalize engine search algorithm > >> >> > drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1 > >> >> > drm/sun4i: Don't check for panel or bridge on TV TCONs > >> >> > drm/sun4i: Add support for R40 TV TCON > >> >> > dt-bindings: display: sun4i-drm: Add R40 mixer compatibles > >> >> > drm/sun4i: Add support for R40 mixers > >> >> > dt-bindings: display: sun4i-drm: Add description of A64 HDMI PHY > >> >> > drm/sun4i: Enable DW HDMI PHY clock > >> >> > drm/sun4i: Don't change clock bits in DW HDMI PHY driver > >> >> > drm/sun4i: DW HDMI PHY: Add support for second PLL > >> >> > drm/sun4i: Add support for second clock parent to DW HDMI PHY clk > >> >> > > >> >> > driver > >> >> > > >> >> > drm/sun4i: Add support for A64 HDMI PHY > >> >> > drm: of: Export drm_crtc_port_mask() > >> >> > drm/sun4i: DW HDMI: Expand algorithm for possible crtcs > >> >> > ARM: dts: sun8i: r40: Add HDMI pipeline > >> >> > ARM: dts: sun8i: r40: Enable HDMI output on BananaPi M2 Ultra > >> >> > >> >> Tested whole series on top of linux-next. > >> >> > >> >> Tested-by: Jagan Teki > >> > > >> > Thanks! > >> > >> I've V40 board, which is same as R40. I'm able to detect the HDMI but > >> seems edid not detecting properly. > >> > >> [ 0.983007] sun4i-drm display-engine: bound 1100000.mixer (ops > >> 0xc074a80c) [ 0.999043] sun4i-drm display-engine: bound 1200000.mixer > >> (ops 0xc074a80c) [ 1.006229] sun4i-drm display-engine: bound > >> 1c70000.tcon-top (ops 0xc074e2ac) [ 1.013609] sun4i-drm > >> display-engine: > >> bound 1c73000.lcd-controller (ops 0xc0747a28) > >> [ 1.053988] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller > >> v1.32a with HDCP (sun8i_dw_hdmi_phy) > >> [ 1.063913] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI > >> I2C bus driver > >> [ 1.071683] sun4i-drm display-engine: bound 1ee0000.hdmi (ops > >> 0xc074a298) [ 1.078484] [drm] Supports vblank timestamp caching Rev 2 > >> (21.10.2013). [ 1.085098] [drm] No driver support for vblank > >> timestamp query. [ 1.091055] [drm] Cannot find any crtc or sizes > >> [ 1.095995] [drm] Initialized sun4i-drm 1.0.0 20150629 for > >> display-engine on minor 0 > > > > This seems like DT issue. Can you post somewhere your V40 DTSI (if it is > > different to R40) and board DTS? > > same dtsi shared between r40 and v40, here is board dts support for HDMI[1] > > [1] https://paste.ubuntu.com/p/wqVz38BHrM/ This patch looks like exactly the same as mine for BananaPi M2U, so there should be no issues. What about VCC-HDMI? Is powered? Can you measure it to check? Best regards, Jernej From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jernej =?utf-8?B?xaBrcmFiZWM=?= Subject: Re: [PATCH v2 00/27] Add support for R40 HDMI pipeline Date: Mon, 18 Jun 2018 16:43:56 +0200 Message-ID: <15787507.kzqBcLUy0z@jernej-laptop> References: <20180612200036.21483-1-jernej.skrabec@siol.net> <5084905.C41JrL457O@jernej-laptop> Reply-To: jernej.skrabec-gGgVlfcn5nU@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Jagan Teki Cc: Maxime Ripard , Chen-Yu Tsai , Rob Herring , David Airlie , gustavo-THi1TnShQwVAfugRpC6u6w@public.gmane.org, maarten.lankhorst-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, Sean Paul , Mark Rutland , dri-devel , devicetree , linux-arm-kernel , linux-kernel , linux-clk , linux-sunxi List-Id: devicetree@vger.kernel.org Dne ponedeljek, 18. junij 2018 ob 14:58:02 CEST je Jagan Teki napisal(a): > On Thu, Jun 14, 2018 at 10:59 PM, Jernej =C5=A0krabec >=20 > wrote: > > Dne =C4=8Detrtek, 14. junij 2018 ob 19:16:46 CEST je Jagan Teki napisal= (a): > >> On Thu, Jun 14, 2018 at 8:04 PM, Jernej =C5=A0krabec > >=20 > > wrote: > >> > Dne =C4=8Detrtek, 14. junij 2018 ob 09:12:41 CEST je Jagan Teki napi= sal(a): > >> >> On Wed, Jun 13, 2018 at 1:30 AM, Jernej Skrabec > >> >> > >> >=20 > >> > wrote: > >> >> > This series adds support for R40 HDMI pipeline. It is a bit speci= al > >> >> > than other already supported pipelines because it has additional > >> >> > unit > >> >> > called TCON TOP responsible for relationship configuration betwee= n > >> >> > mixers, TCONs and HDMI. Additionally, it has additional gates for > >> >> > DSI > >> >> > and TV TCONs, TV encoder clock settings and pin muxing between LC= D > >> >> > and TV encoders. > >> >> >=20 > >> >> > However, it seems that TCON TOP will become a norm, since newer > >> >> > Allwinner SoCs like H6 also have this unit. > >> >> >=20 > >> >> > I tested different possible configurations: > >> >> > - mixer0 <> TCON-TV0 <> HDMI > >> >> > - mixer0 <> TCON-TV1 <> HDMI > >> >> > - mixer1 <> TCON-TV0 <> HDMI > >> >> > - mixer1 <> TCON-TV1 <> HDMI > >> >> >=20 > >> >> > Please review. > >> >> >=20 > >> >> > Best regards, > >> >> > Jernej > >> >> >=20 > >> >> > Changes from v1: > >> >> > - Split DT bindings patch and updated description > >> >> > - Split HDMI PHY patch > >> >> > - Move header file from TCON TOP patch to dt bindings patch > >> >> > - Added Rob reviewed-by tag > >> >> > - Used clk_hw_register_gate() instead of custom gate registration > >> >> > code > >> >> > - Reworked TCON TOP to be part of of-graph. Because of that, a lo= t > >> >> > of > >> >> >=20 > >> >> > new patches were added. > >> >> >=20 > >> >> > - Droped mixer index quirk patch > >> >> > - Reworked TCON support for TCON TOP > >> >> > - Updated commit messages > >> >> >=20 > >> >> > Jernej Skrabec (27): > >> >> > clk: sunxi-ng: r40: Add minimal rate for video PLLs > >> >> > clk: sunxi-ng: r40: Allow setting parent rate to display relate= d > >> >> > =20 > >> >> > clocks > >> >> > =20 > >> >> > clk: sunxi-ng: r40: Export video PLLs > >> >> > dt-bindings: display: sunxi-drm: Add TCON TOP description > >> >> > drm/sun4i: Add TCON TOP driver > >> >> > drm/sun4i: Fix releasing node when enumerating enpoints > >> >> > drm/sun4i: Split out code for enumerating endpoints in output p= ort > >> >> > drm/sun4i: Add support for traversing graph with TCON TOP > >> >> > drm/sun4i: Don't skip TCONs if they don't have channel 0 > >> >> > dt-bindings: display: sun4i-drm: Add R40 TV TCON description > >> >> > drm/sun4i: tcon: Add support for tcon-top gate > >> >> > drm/sun4i: tcon: Generalize engine search algorithm > >> >> > drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1 > >> >> > drm/sun4i: Don't check for panel or bridge on TV TCONs > >> >> > drm/sun4i: Add support for R40 TV TCON > >> >> > dt-bindings: display: sun4i-drm: Add R40 mixer compatibles > >> >> > drm/sun4i: Add support for R40 mixers > >> >> > dt-bindings: display: sun4i-drm: Add description of A64 HDMI PH= Y > >> >> > drm/sun4i: Enable DW HDMI PHY clock > >> >> > drm/sun4i: Don't change clock bits in DW HDMI PHY driver > >> >> > drm/sun4i: DW HDMI PHY: Add support for second PLL > >> >> > drm/sun4i: Add support for second clock parent to DW HDMI PHY c= lk > >> >> > =20 > >> >> > driver > >> >> > =20 > >> >> > drm/sun4i: Add support for A64 HDMI PHY > >> >> > drm: of: Export drm_crtc_port_mask() > >> >> > drm/sun4i: DW HDMI: Expand algorithm for possible crtcs > >> >> > ARM: dts: sun8i: r40: Add HDMI pipeline > >> >> > ARM: dts: sun8i: r40: Enable HDMI output on BananaPi M2 Ultra > >> >>=20 > >> >> Tested whole series on top of linux-next. > >> >>=20 > >> >> Tested-by: Jagan Teki > >> >=20 > >> > Thanks! > >>=20 > >> I've V40 board, which is same as R40. I'm able to detect the HDMI but > >> seems edid not detecting properly. > >>=20 > >> [ 0.983007] sun4i-drm display-engine: bound 1100000.mixer (ops > >> 0xc074a80c) [ 0.999043] sun4i-drm display-engine: bound 1200000.mix= er > >> (ops 0xc074a80c) [ 1.006229] sun4i-drm display-engine: bound > >> 1c70000.tcon-top (ops 0xc074e2ac) [ 1.013609] sun4i-drm > >> display-engine: > >> bound 1c73000.lcd-controller (ops 0xc0747a28) > >> [ 1.053988] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller > >> v1.32a with HDCP (sun8i_dw_hdmi_phy) > >> [ 1.063913] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI > >> I2C bus driver > >> [ 1.071683] sun4i-drm display-engine: bound 1ee0000.hdmi (ops > >> 0xc074a298) [ 1.078484] [drm] Supports vblank timestamp caching Rev= 2 > >> (21.10.2013). [ 1.085098] [drm] No driver support for vblank > >> timestamp query. [ 1.091055] [drm] Cannot find any crtc or sizes > >> [ 1.095995] [drm] Initialized sun4i-drm 1.0.0 20150629 for > >> display-engine on minor 0 > >=20 > > This seems like DT issue. Can you post somewhere your V40 DTSI (if it i= s > > different to R40) and board DTS? >=20 > same dtsi shared between r40 and v40, here is board dts support for HDMI[= 1] >=20 > [1] https://paste.ubuntu.com/p/wqVz38BHrM/ This patch looks like exactly the same as mine for BananaPi M2U, so there= =20 should be no issues. What about VCC-HDMI? Is powered? Can you measure it to check? Best regards, Jernej --=20 You received this message because you are subscribed to the Google Groups "= linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout. From mboxrd@z Thu Jan 1 00:00:00 1970 From: jernej.skrabec@siol.net (Jernej =?utf-8?B?xaBrcmFiZWM=?=) Date: Mon, 18 Jun 2018 16:43:56 +0200 Subject: [linux-sunxi] [PATCH v2 00/27] Add support for R40 HDMI pipeline In-Reply-To: References: <20180612200036.21483-1-jernej.skrabec@siol.net> <5084905.C41JrL457O@jernej-laptop> Message-ID: <15787507.kzqBcLUy0z@jernej-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Dne ponedeljek, 18. junij 2018 ob 14:58:02 CEST je Jagan Teki napisal(a): > On Thu, Jun 14, 2018 at 10:59 PM, Jernej ?krabec > > wrote: > > Dne ?etrtek, 14. junij 2018 ob 19:16:46 CEST je Jagan Teki napisal(a): > >> On Thu, Jun 14, 2018 at 8:04 PM, Jernej ?krabec > > > > wrote: > >> > Dne ?etrtek, 14. junij 2018 ob 09:12:41 CEST je Jagan Teki napisal(a): > >> >> On Wed, Jun 13, 2018 at 1:30 AM, Jernej Skrabec > >> >> > >> > > >> > wrote: > >> >> > This series adds support for R40 HDMI pipeline. It is a bit special > >> >> > than other already supported pipelines because it has additional > >> >> > unit > >> >> > called TCON TOP responsible for relationship configuration between > >> >> > mixers, TCONs and HDMI. Additionally, it has additional gates for > >> >> > DSI > >> >> > and TV TCONs, TV encoder clock settings and pin muxing between LCD > >> >> > and TV encoders. > >> >> > > >> >> > However, it seems that TCON TOP will become a norm, since newer > >> >> > Allwinner SoCs like H6 also have this unit. > >> >> > > >> >> > I tested different possible configurations: > >> >> > - mixer0 <> TCON-TV0 <> HDMI > >> >> > - mixer0 <> TCON-TV1 <> HDMI > >> >> > - mixer1 <> TCON-TV0 <> HDMI > >> >> > - mixer1 <> TCON-TV1 <> HDMI > >> >> > > >> >> > Please review. > >> >> > > >> >> > Best regards, > >> >> > Jernej > >> >> > > >> >> > Changes from v1: > >> >> > - Split DT bindings patch and updated description > >> >> > - Split HDMI PHY patch > >> >> > - Move header file from TCON TOP patch to dt bindings patch > >> >> > - Added Rob reviewed-by tag > >> >> > - Used clk_hw_register_gate() instead of custom gate registration > >> >> > code > >> >> > - Reworked TCON TOP to be part of of-graph. Because of that, a lot > >> >> > of > >> >> > > >> >> > new patches were added. > >> >> > > >> >> > - Droped mixer index quirk patch > >> >> > - Reworked TCON support for TCON TOP > >> >> > - Updated commit messages > >> >> > > >> >> > Jernej Skrabec (27): > >> >> > clk: sunxi-ng: r40: Add minimal rate for video PLLs > >> >> > clk: sunxi-ng: r40: Allow setting parent rate to display related > >> >> > > >> >> > clocks > >> >> > > >> >> > clk: sunxi-ng: r40: Export video PLLs > >> >> > dt-bindings: display: sunxi-drm: Add TCON TOP description > >> >> > drm/sun4i: Add TCON TOP driver > >> >> > drm/sun4i: Fix releasing node when enumerating enpoints > >> >> > drm/sun4i: Split out code for enumerating endpoints in output port > >> >> > drm/sun4i: Add support for traversing graph with TCON TOP > >> >> > drm/sun4i: Don't skip TCONs if they don't have channel 0 > >> >> > dt-bindings: display: sun4i-drm: Add R40 TV TCON description > >> >> > drm/sun4i: tcon: Add support for tcon-top gate > >> >> > drm/sun4i: tcon: Generalize engine search algorithm > >> >> > drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1 > >> >> > drm/sun4i: Don't check for panel or bridge on TV TCONs > >> >> > drm/sun4i: Add support for R40 TV TCON > >> >> > dt-bindings: display: sun4i-drm: Add R40 mixer compatibles > >> >> > drm/sun4i: Add support for R40 mixers > >> >> > dt-bindings: display: sun4i-drm: Add description of A64 HDMI PHY > >> >> > drm/sun4i: Enable DW HDMI PHY clock > >> >> > drm/sun4i: Don't change clock bits in DW HDMI PHY driver > >> >> > drm/sun4i: DW HDMI PHY: Add support for second PLL > >> >> > drm/sun4i: Add support for second clock parent to DW HDMI PHY clk > >> >> > > >> >> > driver > >> >> > > >> >> > drm/sun4i: Add support for A64 HDMI PHY > >> >> > drm: of: Export drm_crtc_port_mask() > >> >> > drm/sun4i: DW HDMI: Expand algorithm for possible crtcs > >> >> > ARM: dts: sun8i: r40: Add HDMI pipeline > >> >> > ARM: dts: sun8i: r40: Enable HDMI output on BananaPi M2 Ultra > >> >> > >> >> Tested whole series on top of linux-next. > >> >> > >> >> Tested-by: Jagan Teki > >> > > >> > Thanks! > >> > >> I've V40 board, which is same as R40. I'm able to detect the HDMI but > >> seems edid not detecting properly. > >> > >> [ 0.983007] sun4i-drm display-engine: bound 1100000.mixer (ops > >> 0xc074a80c) [ 0.999043] sun4i-drm display-engine: bound 1200000.mixer > >> (ops 0xc074a80c) [ 1.006229] sun4i-drm display-engine: bound > >> 1c70000.tcon-top (ops 0xc074e2ac) [ 1.013609] sun4i-drm > >> display-engine: > >> bound 1c73000.lcd-controller (ops 0xc0747a28) > >> [ 1.053988] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller > >> v1.32a with HDCP (sun8i_dw_hdmi_phy) > >> [ 1.063913] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI > >> I2C bus driver > >> [ 1.071683] sun4i-drm display-engine: bound 1ee0000.hdmi (ops > >> 0xc074a298) [ 1.078484] [drm] Supports vblank timestamp caching Rev 2 > >> (21.10.2013). [ 1.085098] [drm] No driver support for vblank > >> timestamp query. [ 1.091055] [drm] Cannot find any crtc or sizes > >> [ 1.095995] [drm] Initialized sun4i-drm 1.0.0 20150629 for > >> display-engine on minor 0 > > > > This seems like DT issue. Can you post somewhere your V40 DTSI (if it is > > different to R40) and board DTS? > > same dtsi shared between r40 and v40, here is board dts support for HDMI[1] > > [1] https://paste.ubuntu.com/p/wqVz38BHrM/ This patch looks like exactly the same as mine for BananaPi M2U, so there should be no issues. What about VCC-HDMI? Is powered? Can you measure it to check? Best regards, Jernej