On Tue, Feb 07, 2017 at 06:22:04AM +0100, Heiko Schocher wrote: > From: Guan Ben <ben.guan@xxxxxxxxxxxx> > > Make the EN2 pin optional. This is useful for boards, > which have this pin fix wired, for example to ground. > > Signed-off-by: Guan Ben <ben.guan@xxxxxxxxxxxx> > Signed-off-by: Mark Jonas <mark.jonas@xxxxxxxxxxxx> > Signed-off-by: Heiko Schocher <hs@xxxxxxx> > > --- > > .../devicetree/bindings/net/nfc/trf7970a.txt | 4 ++-- > drivers/nfc/trf7970a.c | 26 ++++++++++++---------- > 2 files changed, 16 insertions(+), 14 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > index 32b35a0..5889a3d 100644 > --- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > @@ -5,8 +5,8 @@ Required properties: > - spi-max-frequency: Maximum SPI frequency (<= 2000000). > - interrupt-parent: phandle of parent interrupt handler. > - interrupts: A single interrupt specifier. > -- ti,enable-gpios: Two GPIO entries used for 'EN' and 'EN2' pins on the > - TRF7970A. > +- ti,enable-gpios: One or two GPIO entries used for 'EN' and 'EN2' pins on the > + TRF7970A. EN2 is optional. Could EN ever be optional/fixed? If so, perhaps deprecate this property and do 2 properties, one for each pin. Rob
