[PATCH v4 1/2] dt-bindings: Add DT schema for Arm Mali Valhall GPU
Nick Fan
nick.fan at mediatek.com
Wed Jan 27 21:44:15 EST 2021
Thanks for your review.
These are fixed in v5 as following link.
https://lore.kernel.org/patchwork/patch/1372271/
Nick Fan
On Thu, 2021-01-14 at 14:14 -0600, Rob Herring wrote:
> On Tue, Jan 12, 2021 at 02:49:32PM +0800, Nick Fan wrote:
> > Add devicetree schema for Arm Mali Valhall GPU
> >
> > Define a compatible string for the Mali Valhall GPU
> > for Mediatek's SoC platform.
> >
> > Signed-off-by: Nick Fan <Nick.Fan at mediatek.com>
> > ---
> > .../bindings/gpu/arm,mali-valhall.yaml | 252 ++++++++++++++++++
> > 1 file changed, 252 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml
> > new file mode 100644
> > index 000000000000..ecf249a58435
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml
> > @@ -0,0 +1,252 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +# Copyright (c) 2020 MediaTek Inc.
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/gpu/arm,mali-valhall.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ARM Mali Valhall GPU
> > +
> > +maintainers:
> > + - Rob Herring <robh at kernel.org>
> > +
> > +properties:
> > + $nodename:
> > + pattern: '^gpu@[a-f0-9]+$'
> > +
> > + compatible:
> > + items:
> > + - enum:
> > + - mediatek,mt8192-mali
> > + - const: arm,mali-valhall
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + interrupts:
> > + items:
> > + - description: GPU interrupt
> > + - description: MMU interrupt
> > + - description: Job interrupt
> > +
> > + interrupt-names:
> > + items:
> > + - const: gpu
> > + - const: mmu
> > + - const: job
> > +
> > + clocks:
> > + minItems: 1
> > +
> > + power-domains:
> > + minItems: 1
> > + maxItems: 5
> > +
> > + mali-supply: true
> > + sram-supply: true
> > +
> > + operating-points-v2: true
> > +
> > + "#cooling-cells":
> > + const: 2
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - interrupts
> > + - interrupt-names
> > + - clocks
> > +
> > +additionalProperties: false
> > +
> > +allOf:
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: mediatek,mt8192-mali
> > + then:
> > + properties:
> > + sram-supply: true
> > + power-domains:
> > + description:
> > + List of phandle and PM domain specifier as documented in
> > + Documentation/devicetree/bindings/power/power_domain.txt
> > + minItems: 5
> > + maxItems: 5
> > + power-domain-names:
> > + items:
> > + - const: core0
> > + - const: core1
> > + - const: core2
> > + - const: core3
> > + - const: core4
> > +
> > + required:
> > + - sram-supply
> > + - power-domains
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/interrupt-controller/irq.h>
> > + #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > + gpu at 13000000 {
> > + compatible = "mediatek,mt8192-mali", "arm,mali-valhall";
> > + reg = <0x13000000 0x4000>;
> > + interrupts =
> > + <GIC_SPI 363 IRQ_TYPE_LEVEL_HIGH 0>,
> > + <GIC_SPI 364 IRQ_TYPE_LEVEL_HIGH 0>,
> > + <GIC_SPI 365 IRQ_TYPE_LEVEL_HIGH 0>;
> > + interrupt-names =
> > + "gpu",
> > + "mmu",
> > + "job";
> > +
> > + clocks = <&mfgcfg 0>;
> > +
> > + power-domains =
> > + <&spm 4>,
> > + <&spm 5>,
> > + <&spm 6>,
> > + <&spm 7>,
> > + <&spm 8>;
> > +
> > + operating-points-v2 = <&gpu_opp_table>;
> > + mali-supply = <&mt6315_7_vbuck1>;
> > + sram-supply = <&mt6359_vsram_others_ldo_reg>;
> > + };
> > +
> > + gpu_opp_table: opp_table0 {
>
> Make this a child node of the gpu node.
>
> > + compatible = "operating-points-v2";
> > + opp-shared;
> > +
> > + opp-358000000 {
> > + opp-hz = /bits/ 64 <358000000>;
> > + opp-hz-real = /bits/ 64 <358000000>,
> > + /bits/ 64 <358000000>;
>
> This is not part of the OPP binding. It's not clear what it's purpose
> would be given the values are always the same as opp-hz.
>
>
> > + opp-microvolt = <606250>,
> > + <750000>;
> > + };
> > +
> > + opp-399000000 {
> > + opp-hz = /bits/ 64 <399000000>;
> > + opp-hz-real = /bits/ 64 <399000000>,
> > + /bits/ 64 <399000000>;
> > + opp-microvolt = <618750>,
> > + <750000>;
> > + };
> > +
> > + opp-440000000 {
> > + opp-hz = /bits/ 64 <440000000>;
> > + opp-hz-real = /bits/ 64 <440000000>,
> > + /bits/ 64 <440000000>;
> > + opp-microvolt = <631250>,
> > + <750000>;
> > + };
> > +
> > + opp-482000000 {
> > + opp-hz = /bits/ 64 <482000000>;
> > + opp-hz-real = /bits/ 64 <482000000>,
> > + /bits/ 64 <482000000>;
> > + opp-microvolt = <643750>,
> > + <750000>;
> > + };
> > +
> > + opp-523000000 {
> > + opp-hz = /bits/ 64 <523000000>;
> > + opp-hz-real = /bits/ 64 <523000000>,
> > + /bits/ 64 <523000000>;
> > + opp-microvolt = <656250>,
> > + <750000>;
> > + };
> > +
> > + opp-564000000 {
> > + opp-hz = /bits/ 64 <564000000>;
> > + opp-hz-real = /bits/ 64 <564000000>,
> > + /bits/ 64 <564000000>;
> > + opp-microvolt = <668750>,
> > + <750000>;
> > + };
> > +
> > + opp-605000000 {
> > + opp-hz = /bits/ 64 <605000000>;
> > + opp-hz-real = /bits/ 64 <605000000>,
> > + /bits/ 64 <605000000>;
> > + opp-microvolt = <681250>,
> > + <750000>;
> > + };
> > +
> > + opp-647000000 {
> > + opp-hz = /bits/ 64 <647000000>;
> > + opp-hz-real = /bits/ 64 <647000000>,
> > + /bits/ 64 <647000000>;
> > + opp-microvolt = <693750>,
> > + <750000>;
> > + };
> > +
> > + opp-688000000 {
> > + opp-hz = /bits/ 64 <688000000>;
> > + opp-hz-real = /bits/ 64 <688000000>,
> > + /bits/ 64 <688000000>;
> > + opp-microvolt = <706250>,
> > + <750000>;
> > + };
> > +
> > + opp-724000000 {
> > + opp-hz = /bits/ 64 <724000000>;
> > + opp-hz-real = /bits/ 64 <724000000>,
> > + /bits/ 64 <724000000>;
> > + opp-microvolt = <725000>,
> > + <750000>;
> > + };
> > +
> > + opp-760000000 {
> > + opp-hz = /bits/ 64 <760000000>;
> > + opp-hz-real = /bits/ 64 <760000000>,
> > + /bits/ 64 <760000000>;
> > + opp-microvolt = <743750>,
> > + <750000>;
> > + };
> > +
> > + opp-795000000 {
> > + opp-hz = /bits/ 64 <795000000>;
> > + opp-hz-real = /bits/ 64 <795000000>,
> > + /bits/ 64 <795000000>;
> > + opp-microvolt = <762500>,
> > + <762500>;
> > + };
> > +
> > + opp-831000000 {
> > + opp-hz = /bits/ 64 <831000000>;
> > + opp-hz-real = /bits/ 64 <831000000>,
> > + /bits/ 64 <831000000>;
> > + opp-microvolt = <781250>,
> > + <781250>;
> > + };
> > +
> > + opp-855000000 {
> > + opp-hz = /bits/ 64 <855000000>;
> > + opp-hz-real = /bits/ 64 <855000000>,
> > + /bits/ 64 <855000000>;
> > + opp-microvolt = <793750>,
> > + <793750>;
> > + };
> > +
> > + opp-902000000 {
> > + opp-hz = /bits/ 64 <902000000>;
> > + opp-hz-real = /bits/ 64 <902000000>,
> > + /bits/ 64 <902000000>;
> > + opp-microvolt = <818750>,
> > + <818750>;
> > + };
> > +
> > + opp-950000000 {
> > + opp-hz = /bits/ 64 <950000000>;
> > + opp-hz-real = /bits/ 64 <950000000>,
> > + /bits/ 64 <950000000>;
> > + opp-microvolt = <843750>,
> > + <843750>;
> > + };
> > + };
> > +...
> > --
> > 2.18.0
> >
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