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Message-ID: <9d9998cc-33bf-7d8f-658b-8d6218338135@gmail.com>
Date: Sun, 26 Apr 2020 21:36:58 +0200
From: Philipp Rossak <embed3d@...il.com>
To: "H. Nikolaus Schaller" <hns@...delico.com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Benoît Cousson <bcousson@...libre.com>,
Tony Lindgren <tony@...mide.com>,
Paul Cercueil <paul@...pouillou.net>,
Ralf Baechle <ralf@...ux-mips.org>,
Paul Burton <paulburton@...nel.org>,
James Hogan <jhogan@...nel.org>, Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Maxime Ripard <mripard@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Jonathan Bakker <xc-racer2@...e.ca>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
openpvrsgx-devgroup@...ux.org, letux-kernel@...nphoenux.org,
kernel@...a-handheld.com, linux-mips@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v7 01/12] dt-bindings: add img,pvrsgx.yaml for Imagination
GPUs
Hi Nikolaus,
On 24.04.20 22:34, H. Nikolaus Schaller wrote:
> The Imagination PVR/SGX GPU is part of several SoC from
> multiple vendors, e.g. TI OMAP, Ingenic JZ4780, Intel Poulsbo,
> Allwinner A83 and others.
>
> With this binding, we describe how the SGX processor is
> interfaced to the SoC (registers and interrupt).
>
> The interface also consists of clocks, reset, power but
> information from data sheets is vague and some SoC integrators
> (TI) deciced to use a PRCM wrapper (ti,sysc) which does
> all clock, reset and power-management through registers
> outside of the sgx register block.
>
> Therefore all these properties are optional.
>
> Tested by make dt_binding_check
>
> Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
> ---
> .../devicetree/bindings/gpu/img,pvrsgx.yaml | 150 ++++++++++++++++++
> 1 file changed, 150 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml b/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml
> new file mode 100644
> index 000000000000..33a9c4c6e784
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml
> @@ -0,0 +1,150 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpu/img,pvrsgx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Imagination PVR/SGX GPU
> +
> +maintainers:
> + - H. Nikolaus Schaller <hns@...delico.com>
> +
> +description: |+
> + This binding describes the Imagination SGX5 series of 3D accelerators which
> + are found in several different SoC like TI OMAP, Sitara, Ingenic JZ4780,
> + Allwinner A83, and Intel Poulsbo and CedarView and more.
> +
> + For an extensive list see: https://en.wikipedia.org/wiki/PowerVR#Implementations
> +
> + The SGX node is usually a child node of some DT node belonging to the SoC
> + which handles clocks, reset and general address space mapping of the SGX
> + register area. If not, an optional clock can be specified here.
> +
> +properties:
> + $nodename:
> + pattern: '^gpu@[a-f0-9]+$'
> + compatible:
> + oneOf:
> + - description: SGX530-121 based SoC
> + items:
> + - enum:
> + - ti,omap3-sgx530-121 # BeagleBoard A/B/C, OpenPandora 600MHz and similar
> + - const: img,sgx530-121
> + - const: img,sgx530
> +
> + - description: SGX530-125 based SoC
> + items:
> + - enum:
> + - ti,am3352-sgx530-125 # BeagleBone Black
> + - ti,am3517-sgx530-125
> + - ti,am4-sgx530-125
> + - ti,omap3-sgx530-125 # BeagleBoard XM, GTA04, OpenPandora 1GHz and similar
> + - ti,ti81xx-sgx530-125
> + - const: ti,omap3-sgx530-125
> + - const: img,sgx530-125
> + - const: img,sgx530
> +
> + - description: SGX535-116 based SoC
> + items:
> + - const: intel,poulsbo-gma500-sgx535 # Atom Z5xx
> + - const: img,sgx535-116
> + - const: img,sgx535
> +
> + - description: SGX540-116 based SoC
> + items:
> + - const: intel,medfield-gma-sgx540 # Atom Z24xx
> + - const: img,sgx540-116
> + - const: img,sgx540
> +
> + - description: SGX540-120 based SoC
> + items:
> + - enum:
> + - samsung,s5pv210-sgx540-120
> + - ti,omap4-sgx540-120 # Pandaboard, Pandaboard ES and similar
> + - const: img,sgx540-120
> + - const: img,sgx540
> +
> + - description: SGX540-130 based SoC
> + items:
> + - enum:
> + - ingenic,jz4780-sgx540-130 # CI20
> + - const: img,sgx540-130
> + - const: img,sgx540
> +
> + - description: SGX544-112 based SoC
> + items:
> + - const: ti,omap4470-sgx544-112
> + - const: img,sgx544-112
> + - const: img,sgx544
> +
> + - description: SGX544-115 based SoC
> + items:
> + - enum:
> + - allwinner,sun8i-a31-sgx544-115
> + - allwinner,sun8i-a31s-sgx544-115
those two bindings are wrong.
It should be allwinner,sun6i-a31-sgx544-115 and
allwinner,sun6i-a31s-sgx544-115. I did a copy paste error in the patches
that I provided for this series.
Cheers,
Philipp
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