On Mon, Jun 27, 2016 at 08:19:22PM +0900, Akinobu Mita wrote: > This adds support control with GPIO lines connected to the DS1302 > which can communicate with three wires. > > Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx> > Cc: Sergey Yanovich <ynvich@xxxxxxxxx> > Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> > Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> > --- > .../devicetree/bindings/rtc/maxim-ds1302.txt | 13 + > drivers/rtc/Kconfig | 17 +- > drivers/rtc/rtc-ds1302.c | 320 ++++++++++++++++++++- > 3 files changed, 331 insertions(+), 19 deletions(-) > > diff --git a/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt b/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt > index ba470c5..d489753 100644 > --- a/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt > +++ b/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt > @@ -27,6 +27,12 @@ Required SPI properties: > - spi-cs-high: DS-1302 has active high chip select line. This is > required unless inverted in hardware. > > +Required properties when using GPIO lines: > + > +- gpio-ce: GPIO connected to CE pin > +- gpio-io: GPIO connected to I/O pin > +- gpio-reset: GPIO connected to SCLK pin > + IIRC, we got rid of the direct gpio bit-banging in this driver (or a similar one) and replaced it with SPI GPIO driver. We should do that here. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
