From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 062CB28E0F; Tue, 10 Feb 2026 00:11:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770682270; cv=none; b=fbGKBsgR7gzhj93vonsDZ4xvotAiu678YWxIyjdlLrq/vGHPizG8fCL/PWr+20YsLxGKCwLTkjU+f1APbF8oHSLs9zhzBJTZbbeLuGJ1ysWfeRVXbQZtzPQnMKqrjAjawk5AZKyXfYBGKEmRTpU3HxeI/z5YaqVGpnv3HStajd8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770682270; c=relaxed/simple; bh=Ud0YoukFs51Dqf524eez2dDStKuRERP9yGNZoTV1W3Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Wi/ZFQKKfrTTG0w+AItTekeN/5AZe1u6ixkhBWdep1S05/A7MBOMy3WXtmv1om/wRq+5BT16kqziJliOufWsm1fReNdZUQdN0Gm+RA5En0K0ZnxgWDg1m24k6pOMjIbAESRI1b6t3VZQcx1GuAw581shqCNjtGNCrBpl5DC1YAQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u8581pYL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u8581pYL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7990CC116C6; Tue, 10 Feb 2026 00:11:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770682269; bh=Ud0YoukFs51Dqf524eez2dDStKuRERP9yGNZoTV1W3Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=u8581pYLgfVeRMBr6/0SOwZyEfARAQvfpkx8/PMXLTNe8Iyg34QeDYhQQ/+eKLXrX YyxTLXBd7NmTqalf81D2KDpIIiR1YwD/xpm7OWATh7qRGUBMvuHSu742VwinOG9S61 oXTiHXHTJKP/G2Y898ZydLfNVqxhC6CDpk1b/vQVgzxCBDLkTdee15dnTgz1eoB7W7 TJ3bW1XMJyFic1z2MBXkK3rG2vbvEyEusmI0L0Oz3wt2WoORrlBDDqhDgADzMg9noX HpJnCVqWymMhiXtdOG7Xcov3gZPra0TGwxOo7I8K7kiG1s5xTpf0pkSig9/jOVfh/P NqZO4dzUYFAbA== Date: Mon, 9 Feb 2026 18:11:08 -0600 From: Rob Herring To: Tommaso Merciai Cc: tomm.merciai@gmail.com, geert@linux-m68k.org, laurent.pinchart@ideasonboard.com, linux-renesas-soc@vger.kernel.org, biju.das.jz@bp.renesas.com, David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Michael Turquette , Stephen Boyd , Magnus Damm , Laurent Pinchart , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: Re: [PATCH v4 09/20] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC Message-ID: <20260210001108.GA2165386-robh@kernel.org> References: <4986c5a3c5cda9e754ed1f9f7121b32e9bf4499f.1770030493.git.tommaso.merciai.xr@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4986c5a3c5cda9e754ed1f9f7121b32e9bf4499f.1770030493.git.tommaso.merciai.xr@bp.renesas.com> On Mon, Feb 02, 2026 at 12:57:40PM +0100, Tommaso Merciai wrote: > The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression > Processor (FCPVD), a Video Signal Processor (VSPD), Video Signal > Processor (VSPD), and Display Unit (DU). > > - LCDC0 supports DSI and LVDS (single or dual-channel) outputs. > - LCDC1 supports DSI, LVDS (single-channel), and RGB outputs. > > Add new SoC-specific compatible string 'renesas,r9a09g047-du'. > > Signed-off-by: Tommaso Merciai > --- > v1->v2: > - Use single compatible string instead of multiple compatible strings > for the two DU instances, leveraging a 'renesas,id' property to > differentiate between DU0 and DU1. > - Updated commit message accordingly. > > v2->v3: > - No changes. > > v3->v4: > - No changes. > > .../bindings/display/renesas,rzg2l-du.yaml | 54 +++++++++++++++++++ > 1 file changed, 54 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml > index 2cc66dcef870..55e3fcff7030 100644 > --- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml > +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml > @@ -20,6 +20,7 @@ properties: > - enum: > - renesas,r9a07g043u-du # RZ/G2UL > - renesas,r9a07g044-du # RZ/G2{L,LC} > + - renesas,r9a09g047-du # RZ/G3E > - renesas,r9a09g057-du # RZ/V2H(P) > - items: > - enum: > @@ -53,6 +54,12 @@ properties: > power-domains: > maxItems: 1 > > + renesas,id: > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [0, 1] > + description: | > + DU instance number. If we wanted instance numbers, there would be a common property. So why is this needed? What's the difference between instances besides the ports? Rob