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Date: Thu, 27 Dec 2018 06:39:14 +0000
From: "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To: Liviu Dudau <Liviu.Dudau@....com>
CC: "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@....com>,
Brian Starkey <Brian.Starkey@....com>,
"Julien Yin (Arm Technology China)" <Julien.Yin@....com>,
"thomas Sun (Arm Technology China)" <thomas.Sun@....com>,
Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@....com>,
"Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
Ayan Halder <Ayan.Halder@....com>,
"Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@....com>,
"Jin Gao (Arm Technology China)" <Jin.Gao@....com>,
"Yiqi Kang (Arm Technology China)" <Yiqi.Kang@....com>,
nd <nd@....com>, "malidp@...s.arm.com" <malidp@...s.arm.com>,
"maarten.lankhorst@...ux.intel.com"
<maarten.lankhorst@...ux.intel.com>,
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Subject: Re: [PATCH v3 2/9] dt/bindings: drm/komeda: Add DT bindings for ARM
display processor D71
On Mon, Dec 24, 2018 at 08:00:51PM +0800, Liviu Dudau wrote:
> On Fri, Dec 21, 2018 at 09:59:12AM +0000, james qian wang (Arm Technology China) wrote:
> > Add DT bindings documentation for the ARM display processor D71 and later
> > IPs.
> >
> > Signed-off-by: James (Qian) Wang <james.qian.wang@....com>
> >
> > Changes in v3:
> > - Deleted unnecessary property: interrupt-names.
> > - Dropped 'ports' and moving 'port' up a level.
> > ---
> > .../bindings/display/arm/arm,komeda.txt | 79 +++++++++++++++++++
> > 1 file changed, 79 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/display/arm/arm,komeda.txt
> >
> > diff --git a/Documentation/devicetree/bindings/display/arm/arm,komeda.txt b/Documentation/devicetree/bindings/display/arm/arm,komeda.txt
> > new file mode 100644
> > index 000000000000..b4e450243c7d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/arm/arm,komeda.txt
> > @@ -0,0 +1,79 @@
> > +Device Tree bindings for ARM Komeda display driver
> > +
> > +Required properties:
> > +- compatible: Should be "arm,mali-d71"
> > +- reg: Physical base address and length of the registers in the system
> > +- interrupts: the interrupt line number of the device in the system
> > +- clocks: A list of phandle + clock-specifier pairs, one for each entry
> > + in 'clock-names'
> > +- clock-names: A list of clock names. It should contain:
> > + - "mclk": for the main processor clock
> > + - "pclk": for the APB interface clock
> > +- #address-cells: Must be 1
> > +- #size-cells: Must be 0
> > +
> > +Required properties for sub-node: pipeline@nq
> > +Each device contains one or two pipeline sub-nodes (at least one), each
> > +pipeline node should provide properties:
> > +- reg: Zero-indexed identifier for the pipeline
> > +- clocks: A list of phandle + clock-specifier pairs, one for each entry
> > + in 'clock-names'
> > +- clock-names: should contain:
> > + - "pxclk": pixel clock
> > + - "aclk": AXI interface clock
> > +
> > +- port: each pipeline connect to an encoder input port. The connection is
> > + modeled using the OF graph bindings specified in
> > + Documentation/devicetree/bindings/graph.txt
> > +
> > +Optional properties:
> > + - memory-region: phandle to a node describing memory (see
> > + Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt)
> > + to be used for the framebuffer; if not present, the framebuffer may
> > + be located anywhere in memory.
> > +
> > +Example:
> > +/ {
> > + ...
> > +
> > + dp0: display@...000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + compatible = "arm,mali-d71";
> > + reg = <0xc00000 0x20000>;
> > + interrupts = <0 168 4>;
> > + clocks = <&dpu_mclk>, <&dpu_aclk>;
> > + clock-names = "mclk", "pclk";
> > +
> > + dp0_pipe0: pipeline@0 {
> > + clocks = <&fpgaosc2>, <&dpu_aclk>;
> > + clock-names = "pxclk", "aclk";
> > + reg = <0>;
> > +
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> These are undocumented and not necessary anyway, as the pipelines will
> inherit display's attributes.
thank you, will fix it in the next version.
> > +
> > + port@0 {
> > + dp0_pipe0_out: endpoint {
> > + remote-endpoint = <&db_dvi0_in>;
> > + };
> > + };
> > + };
> > +
> > + dp0_pipe1: pipeline@1 {
> > + clocks = <&fpgaosc2>, <&dpu_aclk>;
> > + clock-names = "pxclk", "aclk";
> > + reg = <1>;
> > +
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> same here.
OK.
>
> > +
> > + port@0 {
> > + dp0_pipe1_out: endpoint {
> > + remote-endpoint = <&db_dvi1_in>;
> > + };
> > + };
> > + };
> > + };
> > + ...
> > +};
> > --
> > 2.17.1
> >
>
> With these changes:
>
> Reviewed-by: Liviu Dudau <liviu.dudau@....com>
>
> Best regards,
> Liviu
>
>
> --
> ====================
> | I would like to |
> | fix the world, |
> | but they're not |
> | giving me the |
> \ source code! /
> ---------------
> ¯\_(ツ)_/¯
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