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[209.85.219.169]) by smtp.gmail.com with ESMTPSA id b3-20020ac812c3000000b0031bf647b115sm17031065qtj.35.2022.07.07.00.30.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Jul 2022 00:30:35 -0700 (PDT) Received: by mail-yb1-f169.google.com with SMTP id l144so18595049ybl.5; Thu, 07 Jul 2022 00:30:35 -0700 (PDT) X-Received: by 2002:a05:6902:a:b0:65c:b38e:6d9f with SMTP id l10-20020a056902000a00b0065cb38e6d9fmr49905625ybh.36.1657179035303; Thu, 07 Jul 2022 00:30:35 -0700 (PDT) MIME-Version: 1.0 References: <20211229193135.28767-1-laurent.pinchart+renesas@ideasonboard.com> <20211229193135.28767-2-laurent.pinchart+renesas@ideasonboard.com> In-Reply-To: From: Geert Uytterhoeven Date: Thu, 7 Jul 2022 09:30:23 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 1/3] arm64: dts: renesas: Prepare AA1024XD12 panel .dtsi for overlay support To: Laurent Pinchart Cc: Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Rob Herring , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Chris Paterson Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Laurent, On Thu, Jul 7, 2022 at 4:25 AM Laurent Pinchart wrote: > On Thu, Jan 27, 2022 at 01:57:05AM +0200, Laurent Pinchart wrote: > > On Wed, Jan 26, 2022 at 08:15:26PM +0100, Geert Uytterhoeven wrote: > > > On Wed, Jan 26, 2022 at 7:58 PM Laurent Pinchart wrote: > > > > On Wed, Jan 26, 2022 at 01:18:56PM +0100, Geert Uytterhoeven wrote: > > > > > On Wed, Dec 29, 2021 at 8:31 PM Laurent Pinchart wrote: > > > > > > The Mitsubishi AA1024XD12 panel can be used for R-Car Gen2 and Gen3 > > > > > > boards as an optional external panel. It is described in the > > > > > > arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi file as a direct child of the > > > > > > DT root node. This allows including r8a77xx-aa104xd12-panel.dtsi in > > > > > > board device trees, with other minor modifications, to enable the panel. > > > > > > > > > > > > This is however not how external components should be modelled. Instead > > > > > > of modifying the board device tree to enable the panel, it should be > > > > > > compiled as a DT overlay, to be loaded by the boot loader. > > > > > > > > > > > > Prepare the r8a77xx-aa104xd12-panel.dtsi file for this usage by > > > > > > declaring a panel node only, without hardcoding its path. Overlay > > > > > > sources can then include r8a77xx-aa104xd12-panel.dtsi where appropriate. > > > > > > > > > > > > This change doesn't cause any regression as r8a77xx-aa104xd12-panel.dtsi > > > > > > is currently unused. As overlay support for this panel has only been > > > > > > tested with Gen3 hardware, and Gen2 support will require more > > > > > > development, move the file to arch/arm64/boot/dts/renesas/. > > > > > > > > > > > > Signed-off-by: Laurent Pinchart > > > > > > > I see you've reviewed the whole series. Can you pick it up ? > > > > > > I believe it depends on the removal of the empty endpoints, for which > > > we're waiting for feedback from Rob, IIRC? > > > > You're right. Let's wait some more time then. > > How should we proceed with this ? That dependency is commit 747bbcd3aacd95fe ("arm64: dts: renesas: Remove empty rgb output endpoints") in v5.19-rc1, right? So I can take this for v5.20, or are any other changes needed? Please confirm. Thanks! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds