Re: [PATCH v2] dt-bindings: connector: Replace BIT macro with generic bit ops

[Rob Herring <robh+dt@kernel.org>]

On Thu, May 27, 2021 at 7:41 AM Greg KH <gregkh@linuxfoundation.org> wrote:
>
> On Thu, May 27, 2021 at 08:10:29PM +0800, Kyle Tso wrote:
> > BIT macro is not defined. Replace it with generic bit operations.
> >
> > Fixes: 630dce2810b9 ("dt-bindings: connector: Add SVDM VDO properties")
> > Signed-off-by: Kyle Tso <kyletso@google.com>
> > ---
> > Changes since v1:
> > - re-word the commit message
> >
> >  include/dt-bindings/usb/pd.h | 20 ++++++++++----------
> >  1 file changed, 10 insertions(+), 10 deletions(-)
> >
> > diff --git a/include/dt-bindings/usb/pd.h b/include/dt-bindings/usb/pd.h
> > index fef3ef65967f..cb70b4ceedde 100644
> > --- a/include/dt-bindings/usb/pd.h
> > +++ b/include/dt-bindings/usb/pd.h
> > @@ -163,10 +163,10 @@
> >  #define UFP_VDO_VER1_2               2
> >
> >  /* Device Capability */
> > -#define DEV_USB2_CAPABLE     BIT(0)
> > -#define DEV_USB2_BILLBOARD   BIT(1)
> > -#define DEV_USB3_CAPABLE     BIT(2)
> > -#define DEV_USB4_CAPABLE     BIT(3)
> > +#define DEV_USB2_CAPABLE     (1 << 0)
> > +#define DEV_USB2_BILLBOARD   (1 << 1)
> > +#define DEV_USB3_CAPABLE     (1 << 2)
> > +#define DEV_USB4_CAPABLE     (1 << 3)
>
> Why not just include the proper .h file instead?

Because the DT headers can't depend on kernel headers as they get used
separately.

Rob