Re: [PATCH 3/6] dt-bindings: display: mediatek: Fix clocks count constraint for new SoCs

Macpaul Lin
2024-09-25T08:43:11Z

On 9/25/24 00:00, Conor Dooley wrote:
> On Tue, Sep 24, 2024 at 01:42:01PM +0200, AngeloGioacchino Del Regno wrote:
>> Il 24/09/24 12:31, Macpaul Lin ha scritto:
>>> The display node in mt8195.dtsi was triggering a CHECK_DTBS error due
>>> to an excessively long 'clocks' property:
>>> display@14f06000: clocks: [[31, 14], [31, 43], [31, 44]] is too long
>>>
>>> To resolve this issue, add "maxItems: 3" to the 'clocks' property in
>>> the DT schema.
>>>
>>> Fixes: 4ed545e7d100 ("dt-bindings: display: mediatek: disp: split each block to individual yaml")
>>> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
>>> ---
>>> .../devicetree/bindings/display/mediatek/mediatek,split.yaml | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
>>> index e4affc854f3d..42d2d483cc29 100644
>>> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
>>> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
>>> @@ -57,6 +57,7 @@ properties:
>>> clocks:
>>> items:
>>> - description: SPLIT Clock
>>
>> That's at least confusing (granted that it works) - either add a description for
>> each clock and then set `minItems: 1` (preferred), or remove this "SPLIT Clock"
>> description and allow a maximum of 3 clocks.
>>
>> Removing the description can be done - IMO - because "SPLIT Clock" is, well,
>> saying that the SPLIT block gets a SPLIT clock ... stating the obvious, anyway.
>
> Right, but what are the other two new clocks? Are they as obvious?
> There's no clock-names here to give any more information as to what the
> other clocks are supposed to be.
>
> Kinda unrelated, but I think that "SPLIT Clock" probably isn't what the
> name of the clock in the IP block is anyway, sounds more like the name
> for it on the provider end..

Thanks for the suggestions. I think Moudy could help on the new fixes
for both DT schem and mt8195.dtsi. This patch could be separated from
origin patch set.

Thanks
Macpaul Lin