On Fri, Jun 10, 2016 at 7:36 PM, Rob Herring <robh@xxxxxxxxxx> wrote:
> On Thu, Jun 09, 2016 at 03:33:19PM +0200, Andrea Merello wrote:
>> Signed-off-by: Andrea Merello <andrea.merello@xxxxxxxxx>
>> Cc: Stefan Kristiansson <stefan.kristiansson@xxxxxxxxxxxxx>
>> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
>> Cc: Francesco Diotalevi <francesco.diotalevi@xxxxxx>
>> Cc: Claudio Lorini <claudio.lorini@xxxxxx>
>> ---
>> .../bindings/display/opencores,ocdrm.txt | 27 ++++++++++++++++++++++
>> 1 file changed, 27 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/display/opencores,ocdrm.txt
>>
>> diff --git a/Documentation/devicetree/bindings/display/opencores,ocdrm.txt b/Documentation/devicetree/bindings/display/opencores,ocdrm.txt
>> new file mode 100644
>> index 0000000..8d36de5
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/opencores,ocdrm.txt
>> @@ -0,0 +1,27 @@
>> +OpenCores VGA/LCD controller
>> +
>> +Required properties:
>> +- compatible: "opencores,ocdrm"
>
> Name this based on what the h/w block is called, not a Linux subsystem.
Ok.
Something like "opencores,video" ?
The older framebuffer driver has "opencores,ocfb"; I assumed the
suffix -fb was because of it is a "framebuffer" _driver_, but maybe it
is because they consider it a "framebuffer" _device_.
Maybe I can keep the same "compatible" string? Is it ok to have two
drivers (maybe temporarily, until the older one fades out) with the
same "compatible" ?
> Is there any sort of versioning for OpenCore IP that you can include in
> the name?
Not sure about this. I'll check.
>> +- reg: Physical base address and length of the controller's registers.
>> +- clocks: Must contain an entry for the pixelclock generator.
>> + See ../clocks/clock-bindings.txt for details.
>> +
>> +Required sub-nodes:
>> +- port: the connection to a DRM bridge. The connection is modelled
>
> Don't include Linux driver details (DRM) in bindings.
You mean telling that the port must be a connection to a DRM bridge,
leaving out further details?
>> + using the OF graph bindings specified in
>> + Documentation/devicetree/bindings/graph.txt.
>> +
>> +Example:
>> +
>> +ocdrm@43c10000 {
>> + compatible = "opencores,ocfb-drm";
>
> Doesn't match the above and even worse naming.
OK.
>> + reg = <0x43c10000 0x10000>;
>> + clocks = <&pix_clock>;
>> + ports {
>> + port@0 {
>
> Single port doesn't need a unit address.
OK.
>> + rgb_out: endpoint {
>> + remote-endpoint = <&bridge_in>;
>> + };
>> + };
>> + };
>> +};
>> --
>> 1.9.1
>>
>> --
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