linux-kernel - [PATCH RFC v2 00/11] Device tree support for Imagination Series5 GPU

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Date: Mon, 8 Jan 2024 12:32:51 -0600
From: Andrew Davis <afd@...com>
To: Frank Binns <frank.binns@...tec.com>,
        Donald Robson
	<donald.robson@...tec.com>,
        Matt Coster <matt.coster@...tec.com>,
        "H .
 Nikolaus Schaller" <hns@...delico.com>,
        Adam Ford <aford173@...il.com>,
        Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec
	<jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren
	<tony@...mide.com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, Paul Cercueil
	<paul@...pouillou.net>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-sunxi@...ts.linux.dev>, <linux-omap@...r.kernel.org>,
        <linux-mips@...r.kernel.org>, Andrew Davis <afd@...com>
Subject: [PATCH RFC v2 00/11] Device tree support for Imagination Series5 GPU

Hello all,

I know this has been tried before[0], but given the recent upstreaming of
the Series6+ GPU bindings I figured it might be time to give the Series5
bindings another try.

While there is currently no mainline driver for these binding, there is an
open source out-of-tree kernel-side driver available[1]. Having a stable
and upstream binding for these devices allows us to describe this hardware
in device tree.

This is my vision for how these bindings should look, along with some
example uses in several SoC DT files. The compatible names have been
updated to match what was decided on for Series6+, but otherwise most
is the same as we have been using in our vendor tree for many years.

Thanks,
Andrew

Based on next-20240108.

[0]: https://lkml.org/lkml/2020/4/24/1222
[1]: https://github.com/openpvrsgx-devgroup

Changes for RFC v2:
 - Added patch to rename Rogue+ binding to img,powervr-rogue.yaml
 - Locked all property item counts
 - Removed nodename pattern check

Andrew Davis (11):
  dt-bindings: gpu: Rename img,powervr to img,powervr-rogue
  dt-bindings: gpu: Add PowerVR Series5 SGX GPUs
  ARM: dts: omap3: Add device tree entry for SGX GPU
  ARM: dts: omap4: Add device tree entry for SGX GPU
  ARM: dts: omap5: Add device tree entry for SGX GPU
  ARM: dts: AM33xx: Add device tree entry for SGX GPU
  ARM: dts: AM437x: Add device tree entry for SGX GPU
  ARM: dts: DRA7xx: Add device tree entry for SGX GPU
  arm64: dts: ti: k3-am654-main: Add device tree entry for SGX GPU
  ARM: dts: sun6i: Add device tree entry for SGX GPU
  MIPS: DTS: jz4780: Add device tree entry for SGX GPU

 ...mg,powervr.yaml => img,powervr-rogue.yaml} |   4 +-
 .../bindings/gpu/img,powervr-sgx.yaml         | 124 ++++++++++++++++++
 MAINTAINERS                                   |   3 +-
 arch/arm/boot/dts/allwinner/sun6i-a31.dtsi    |   9 ++
 arch/arm/boot/dts/ti/omap/am33xx.dtsi         |   9 +-
 arch/arm/boot/dts/ti/omap/am3517.dtsi         |  11 +-
 arch/arm/boot/dts/ti/omap/am4372.dtsi         |   6 +
 arch/arm/boot/dts/ti/omap/dra7.dtsi           |   9 +-
 arch/arm/boot/dts/ti/omap/omap34xx.dtsi       |  11 +-
 arch/arm/boot/dts/ti/omap/omap36xx.dtsi       |   9 +-
 arch/arm/boot/dts/ti/omap/omap4.dtsi          |   9 +-
 arch/arm/boot/dts/ti/omap/omap5.dtsi          |   9 +-
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi      |   7 +
 arch/mips/boot/dts/ingenic/jz4780.dtsi        |  11 ++
 14 files changed, 201 insertions(+), 30 deletions(-)
 rename Documentation/devicetree/bindings/gpu/{img,powervr.yaml => img,powervr-rogue.yaml} (91%)
 create mode 100644 Documentation/devicetree/bindings/gpu/img,powervr-sgx.yaml

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2.39.2