[00/11] Device tree support for Imagination Series5 GPU

Message

Andrew Davis Jan. 9, 2024, 5:19 p.m. UTC

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-20240109.

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

Changes for v1:
 - Added commit message to patch #1
 - Reworked Rogue binding title
 - Add TI copyright to new binding doc
 - Added default min/maxItems to clocks property
 - Moved "additionalProperties" to end
 - Flattened out allOf block logic
 - Added extra SGX binding example
 - Added Suggested/Reviewed tags

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         | 138 ++++++++++++++++++
 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, 215 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