On 1/28/20 8:35 PM, Rob Herring wrote:
> On Tue, Jan 28, 2020 at 6:31 AM Benjamin GAIGNARD
> <benjamin.gaignard@xxxxxx> wrote:
>>
>> On 1/28/20 1:06 PM, Maxime Ripard wrote:
>>> Hi Benjamin,
>>>
>>> On Tue, Jan 28, 2020 at 09:20:13AM +0100, Benjamin Gaignard wrote:
>>>> Convert etnaviv bindings to yaml format.
>>>>
>>>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
>>>> ---
>>>> .../bindings/display/etnaviv/etnaviv-drm.txt | 36 -----------
>>>> .../devicetree/bindings/gpu/vivante,gc.yaml | 72 ++++++++++++++++++++++
>>>> 2 files changed, 72 insertions(+), 36 deletions(-)
>>>> delete mode 100644 Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt
>>>> create mode 100644 Documentation/devicetree/bindings/gpu/vivante,gc.yaml
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt b/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt
>>>> deleted file mode 100644
>>>> index 8def11b16a24..000000000000
>>>> --- a/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt
>>>> +++ /dev/null
>>>> @@ -1,36 +0,0 @@
>>>> -Vivante GPU core devices
>>>> -========================
>>>> -
>>>> -Required properties:
>>>> -- compatible: Should be "vivante,gc"
>>>> - A more specific compatible is not needed, as the cores contain chip
>>>> - identification registers at fixed locations, which provide all the
>>>> - necessary information to the driver.
>>>> -- reg: should be register base and length as documented in the
>>>> - datasheet
>>>> -- interrupts: Should contain the cores interrupt line
>>>> -- clocks: should contain one clock for entry in clock-names
>>>> - see Documentation/devicetree/bindings/clock/clock-bindings.txt
>>>> -- clock-names:
>>>> - - "bus": AXI/master interface clock
>>>> - - "reg": AHB/slave interface clock
>>>> - (only required if GPU can gate slave interface independently)
>>>> - - "core": GPU core clock
>>>> - - "shader": Shader clock (only required if GPU has feature PIPE_3D)
>>>> -
>>>> -Optional properties:
>>>> -- power-domains: a power domain consumer specifier according to
>>>> - Documentation/devicetree/bindings/power/power_domain.txt
>>>> -
>>>> -example:
>>>> -
>>>> -gpu_3d: gpu@130000 {
>>>> - compatible = "vivante,gc";
>>>> - reg = <0x00130000 0x4000>;
>>>> - interrupts = <0 9 IRQ_TYPE_LEVEL_HIGH>;
>>>> - clocks = <&clks IMX6QDL_CLK_GPU3D_AXI>,
>>>> - <&clks IMX6QDL_CLK_GPU3D_CORE>,
>>>> - <&clks IMX6QDL_CLK_GPU3D_SHADER>;
>>>> - clock-names = "bus", "core", "shader";
>>>> - power-domains = <&gpc 1>;
>>>> -};
>>>> diff --git a/Documentation/devicetree/bindings/gpu/vivante,gc.yaml b/Documentation/devicetree/bindings/gpu/vivante,gc.yaml
>>>> new file mode 100644
>>>> index 000000000000..c4f549c0d750
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/gpu/vivante,gc.yaml
>>>> @@ -0,0 +1,72 @@
>>>> +# SPDX-License-Identifier: GPL-2.0
>>>> +%YAML 1.2
>>>> +---
>>>> +$id: http://devicetree.org/schemas/gpu/vivante,gc.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: Vivante GPU Bindings
>>>> +
>>>> +description: Vivante GPU core devices
>>>> +
>>>> +maintainers:
>>>> + - Lucas Stach <l.stach@xxxxxxxxxxxxxx>
>>>> +
>>>> +properties:
>>>> + compatible:
>>>> + const: vivante,gc
>>>> +
>>>> + reg:
>>>> + maxItems: 1
>>>> +
>>>> + interrupts:
>>>> + maxItems: 1
>>>> +
>>>> + clocks:
>>>> + items:
>>>> + - description: AXI/master interface clock
>>>> + - description: GPU core clock
>>>> + - description: Shader clock (only required if GPU has feature PIPE_3D)
>>>> + - description: AHB/slave interface clock (only required if GPU can gate slave interface independently)
>>> Can you have an AHB slave interface clock without a shader clock?
>> No because the items in the list are ordered so you need to have, in
>> order: "bus", "core", "shader", "reg"
>>
>> If it is needed to allow any number of clock in any order I could write
>> it like this:
> Yes, but I prefer we don't allow any order if we don't have to. Did
> you run this schema against dtbs_check or just audit the dts files
> with vivante?
Both, I found these mix of reg-names:
"core"
"bus","core"
"bus","core","shader"
That not really match with original bindings description...
>
> Rob
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