On Wed, Jan 27, 2016 at 07:40:07PM +0530, Laxman Dewangan wrote: > MAXIM Semiconductor's PMIC, MAX77620/MAX20024 has 8 GPIO > pins. It also supports interrupts from these pins. > > Add GPIO driver for these pins to control via GPIO APIs. > > Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx> > Signed-off-by: Chaitanya Bandi <bandik@xxxxxxxxxx> > --- > Changes from V1: > - Use the gpiochip_add_data and get the chip data from core APIs. > - Cleanups based on comment received on mfd/rtc. > - Avoid duplication on error message. > > Changes form V2: > - Run coccicheck and checkpatch in strict mode for the alignment. > - update based on api changes from core. > > Changes from V3: > - Change all sys initcall to module driver. > - change the max77620_read argument to unisgned int from u8. > > Changes from V4: > - Added DT binding document as devicetree/bindings/gpio/gpio-max77620.txt > > .../devicetree/bindings/gpio/gpio-max77620.txt | 25 ++ > drivers/gpio/Kconfig | 9 + > drivers/gpio/Makefile | 1 + > drivers/gpio/gpio-max77620.c | 292 +++++++++++++++++++++ > 4 files changed, 327 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max77620.txt > create mode 100644 drivers/gpio/gpio-max77620.c > > diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt > new file mode 100644 > index 0000000..410e716 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt > @@ -0,0 +1,25 @@ > +GPIO driver for MAX77620 Power management IC from Maxim Semiconductor. > + > +Device has 8 GPIO pins which can be configured as GPIO as well as the > +special IO functions. > + > +Required properties: > +------------------- > +- gpio-controller : Marks the device node as a gpio controller. > +- #gpio-cells : Should be two. The first cell is the pin number and > + the second cell is used to specify the gpio polarity: > + 0 = active high > + 1 = active low > +For more details, please refer generic GPIO DT binding document > +<devicetree/bindings/gpio/gpio.txt>. I would just fold these 2 properties into the main max77620 document. 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
