On Mon, May 24, 2021 at 08:20:32PM +0800, Chun-Jie Chen wrote: > This patch adds the new binding documentation of imp i2c wrapper controller > for Mediatek MT8192. > > Signed-off-by: Weiyi Lu <weiyi.lu@xxxxxxxxxxxx> > Signed-off-by: chun-jie.chen <chun-jie.chen@xxxxxxxxxxxx> > --- > .../arm/mediatek/mediatek,imp_iic_wrap.yaml | 80 +++++++++++++++++++ > 1 file changed, 80 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,imp_iic_wrap.yaml > > diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,imp_iic_wrap.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,imp_iic_wrap.yaml > new file mode 100644 > index 000000000000..fb6cb9e60ee2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,imp_iic_wrap.yaml > @@ -0,0 +1,80 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/arm/mediatek/mediatek,imp_iic_wrap.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: MediaTek IMP I2C Wrapper Controller > + > +maintainers: > + - Chun-Jie Chen <chun-jie.chen@xxxxxxxxxxxx> > + > +description: > + The Mediatek imp i2c wrapper controller provides functional configurations and clocks to the system. > + > +properties: > + compatible: > + items: > + - enum: > + - mediatek,mt8192-imp_iic_wrap_c > + - mediatek,mt8192-imp_iic_wrap_e > + - mediatek,mt8192-imp_iic_wrap_s > + - mediatek,mt8192-imp_iic_wrap_ws > + - mediatek,mt8192-imp_iic_wrap_w > + - mediatek,mt8192-imp_iic_wrap_n Looks to me like these are all the same h/w, but just have differing sets of clocks. That's not really a reason to have different compatibles. If you need to know what clocks are present, you can walk the DT for all 'clocks' properties matching this clock controller instance. Or use 'clock-indices' to define which ones are present. Rob
