From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 7C6B3435AB4 for ; Thu, 16 Jul 2026 17:15:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784222123; cv=none; b=UiW6grFv6y/0RQSePnABwEM3LOe10y3/k5RuTytSF+ZbX0aG7Vcek8glMTWmr87DA7ozOrIb99pRvyfCkBIcQLMTLKUoTKRZ7Jrz+Ny7KMJ7psHh24MOwHutlfKfRBf6XClusy3xhyw0obQX2E+jjji2Xlp6xZxpbz/eTQ/rzrc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784222123; c=relaxed/simple; bh=I6x0qHKw03O4fYsK5Q0gJ2HTAu9OXoIiSfZOStEA+Sw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YPZ8CQwdo2gK6ZhFw0dxvTTYcVDg4e5Yiew4XdmvvAye1xr1j6arfmyoCPX/E9VtwMOChgoSo3HlOrLC05AYwStjy/DDj/2S6+dpuW9BE+oXxPrgsCDVmUQQHZ+5jzTKSf5+clEj6bz+frg7tLc/S4oV1Bb4a4TtC5UTzs/MCVw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ec4c8n0t; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ec4c8n0t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E0F5C1F00A3D; Thu, 16 Jul 2026 17:15:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784222122; bh=PsPCuPzfA0/GmVqbYm6ZtWA+Bb6mhqaV7zghns37cjA=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ec4c8n0tvsQ+StTt++L1TEbDeUohy0NX2EI2Kt66tm4dGbIMHlR0DCIIv3YlV8c13 caEMH7YZD58KLEPONm56PpmnQ94/+4Kps9iZbF5qPw0ej1IhBdEtmGM6wJb7YiDIvw bS/FSG7ZGaeLSHQdMtlLR92VuCav35L38Tg7iViUARK9nW3WICCt7vOKWbjvN5xcyW huQbBI8epwaaIormmxXNCjwCKLxDVkelMwVgdPWyHiP1DJE4NmWqKgHle1nYFe6Gpb bs70rvqoYLSe7iy7/U4NJuoyVFXsXBDoQqq/9zQ3HPf14qtWEJsqNeo8o3iaWaLsmf 7i7K0z94rsZNQ== Date: Thu, 16 Jul 2026 18:15:17 +0100 From: Conor Dooley To: Leander Kieweg Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Subject: Re: [RFC PATCH 1/3] dt-bindings: display: Add GlandaGPU binding Message-ID: <20260716-decidable-tingle-175efaf36540@spud> References: <20260714101146.200416-1-kieweg.leander@gmail.com> <20260714101146.200416-2-kieweg.leander@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cbV4hcmtpxM17zNB" Content-Disposition: inline In-Reply-To: <20260714101146.200416-2-kieweg.leander@gmail.com> --cbV4hcmtpxM17zNB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hey, On Tue, Jul 14, 2026 at 12:11:43PM +0200, Leander Kieweg wrote: > Add Device Tree binding documentation for GlandaGPU, a custom > FPGA-based 2D display controller. >=20 > Signed-off-by: Leander Kieweg > --- > .../bindings/display/glanda,gpu.yaml | 49 +++++++++++++++++++ > .../devicetree/bindings/vendor-prefixes.yaml | 2 + > 2 files changed, 51 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/glanda,gpu.= yaml >=20 > diff --git a/Documentation/devicetree/bindings/display/glanda,gpu.yaml b/= Documentation/devicetree/bindings/display/glanda,gpu.yaml > new file mode 100644 > index 000000000..40304e773 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/glanda,gpu.yaml > @@ -0,0 +1,49 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/glanda,gpu.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: GlandaGPU 2D Hardware Accelerated Display Controller > + > +maintainers: > + - Leander Kieweg > + > +description: | > + GlandaGPU is a custom FPGA soft-IP core providing a simple Sadly googling this device only shows up Phoronix and other copy-paste reporting sites. I think it'd probably be good to include a link to your project either here or in the commit message. > + 2D hardware-accelerated drawing engine (clear/rect/line) with a > + VGA-compatible display output. The register window covers a > + combined VRAM + MMIO region, with MMIO registers at a fixed > + offset within it. > + > +properties: > + compatible: > + const: glanda,gpu-1.0 > + > + reg: > + maxItems: 1 > + description: > + Combined VRAM + MMIO register window (VRAM at offset 0, > + MMIO registers at offset 0x00200000 within this range). > + > + interrupts: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + description: Bus and pixel clock provided to the FPGA IP. This clock sounds like it is actually required? Doubt the device works without it! pw-bot: changes-requested > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + gpu@c0000000 { > + compatible =3D "glanda,gpu-1.0"; > + reg =3D <0xc0000000 0x1000000>; > + interrupts =3D <0 43 4>; Usually I would say do not include things if you don't have to, but I would much rather you did if the alternative is an interrupts property like this that doesn't resemble anything used in devicetrees. > + clocks =3D <&osc1>; > + }; > \ No newline at end of file > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Doc= umentation/devicetree/bindings/vendor-prefixes.yaml > index b1af9deac..b8b7a5401 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml > +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml > @@ -666,6 +666,8 @@ patternProperties: > description: Giantplus Technology Co., Ltd. > "^gira,.*": > description: Gira Giersiepen GmbH & Co. KG > + "^glanda,.*": > + description: GlandaGPU > "^glinet,.*": > description: GL Intelligence, Inc. > "^globalscale,.*": > --=20 > 2.43.0 >=20 --cbV4hcmtpxM17zNB Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCalkRpQAKCRB4tDGHoIJi 0hjuAQCx5CZauAKjA9Fmp9BQ3OqGeSR3oSHpAphtfKtr9lFuMAD/WgcLIUUZUcYE FD0968ML3qNI8JkkOL0edXx6Ff2+NwU= =Cw7h -----END PGP SIGNATURE----- --cbV4hcmtpxM17zNB--