On Fri, Jul 30, 2021 at 04:49:54PM +0800, Chunfeng Yun wrote: > There are 4 USB controllers on MT8195, the controllers (IP1~IP3, > exclude IP0) have a wrong default SOF/ITP interval which is > calculated from the frame counter clock 24Mhz by default, but > in fact, the frame counter clock is 48Mhz, so we should set > the accurate interval according to 48Mhz. Here add a new compatible > for MT8195, it's also supported in driver. But the first controller > (IP0) has no such issue, we prefer to use generic compatible, > e.g. mt8192's compatible. That only works until you find some 8195 bug common to all instances. Can't you read the clock frequency? > > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > index 61a0e550b5d6..753e043e5327 100644 > --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > @@ -31,6 +31,7 @@ properties: > - mediatek,mt8173-xhci > - mediatek,mt8183-xhci > - mediatek,mt8192-xhci > + - mediatek,mt8195-xhci > - const: mediatek,mtk-xhci > > reg: > -- > 2.18.0 > >
