On Fri, 2022-07-01 at 15:37 -0600, Rob Herring wrote: > On Wed, Jun 29, 2022 at 02:55:46PM -0400, Nícolas F. R. A. Prado > wrote: > > On Tue, Jun 28, 2022 at 08:57:45AM +0800, Chunfeng Yun wrote: > > > Hi Nícolas, > > > > > > On Thu, 2022-06-23 at 15:37 -0400, Nícolas F. R. A. Prado wrote: > > > > All of the clocks listed in the binding are always wired to the > > > > XHCI > > > > controller hardware blocks on all SoCs. The reason some clocks > > > > were > > > > made > > > > optional in the binding was to account for the fact that > > > > depending on > > > > the SoC, some of the clocks might be fixed (ie not controlled > > > > by > > > > software). > > > > > > > > Given that the devicetree should represent the hardware, make > > > > all > > > > clocks > > > > required in the binding. Subsequent patches will make the DTS > > > > changes > > > > to > > > > specify fixed-clocks for the clocks that aren't controllable. > > > > > > > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> > > > > > > > > --- > > > > > > > > Changes in v2: > > > > - Undid clock list changes that allowed middle clocks to be > > > > missing > > > > from > > > > v1 and made all clocks required instead > > > > - Rewrote commit message and title > > > > > > > > Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml | > > > > 4 + > > > > --- > > > > 1 file changed, 1 insertion(+), 3 deletions(-) > > > > > > > > diff --git > > > > a/Documentation/devicetree/bindings/usb/mediatek,mtk- > > > > xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk- > > > > xhci.yaml > > > > index 63cbc2b62d18..1444d18ef9bc 100644 > > > > --- a/Documentation/devicetree/bindings/usb/mediatek,mtk- > > > > xhci.yaml > > > > +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk- > > > > xhci.yaml > > > > @@ -67,7 +67,6 @@ properties: > > > > maxItems: 1 > > > > > > > > clocks: > > > > - minItems: 1 > > > > items: > > > > - description: Controller clock used by normal mode > > > > - description: Reference clock used by low power mode > > > > etc > > > > @@ -76,9 +75,8 @@ properties: > > > > - description: controller clock > > > > > > > > clock-names: > > > > - minItems: 1 > > > > items: > > > > - - const: sys_ck # required, the following ones are > > > > optional > > > > + - const: sys_ck > > > > - const: ref_ck > > > > - const: mcu_ck > > > > - const: dma_ck > > > > > > This patch causes more check warning, I prefer to leave dt- > > > bindings > > > unchanged, but just fix mt8195's dts warning instead, thanks a > > > lot > > > > Hi Chunfeng, > > > > the warnings reported by Rob's bot only happen if patches 3 and 4 > > aren't applied > > to adapt the devicetrees. They are ABI breaking changes, but I > > understood this > > as the desired solution from the discussion we had with Krzysztof > > on v1 [1]. > > The warnings have nothing to do with patches 3 and 4 as those are > for > dts files. It's examples in bindings that are the problem. Yes, I mean almost all existing dts supporting mtk-xhci will also cause similar warnings, as changes in patches 3, 4; It seems less flexible to make all clock required, not only changes all existing ones but also need more changes if additional clock is added. > > Rob
