On Mon, Sep 30, 2019 at 11:25:03AM +0800, Biwen Li wrote: > The patch adds an optional property i2c-mux-never-disable > > Signed-off-by: Biwen Li <biwen.li@xxxxxxx> > --- > Change in v2: > - update documentation > > Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > index 30ac6a60f041..71b73d0fdb62 100644 > --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > @@ -34,6 +34,7 @@ Optional Properties: > - first cell is the pin number > - second cell is used to specify flags. > See also Documentation/devicetree/bindings/interrupt-controller/interrupts.txt > + - i2c-mux-never-disable: always forces mux to be enabled. Either needs to have a vendor prefix or be documented as a common property. IIRC, we already have a property for mux default state which seems like that would cover this unless you need to leave it in different states. Rob
