On Tue, Nov 15, 2016 at 06:46:45AM -0800, Andrey Smirnov wrote: > Most recent device tree binding for that mux support specifying a GPIO > connected to a reset line of that chip. Add code to handle that binding > in order to be able to use the chip on boards that leverage > aforementioned functionality. > > Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> > --- > drivers/i2c/muxes/i2c-mux-pca954x.c | 7 +++++++ > 1 file changed, 7 insertions(+) Applied, thanks Sascha > > diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c > index baeae7b..0d5515b 100644 > --- a/drivers/i2c/muxes/i2c-mux-pca954x.c > +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c > @@ -45,6 +45,8 @@ > #include <i2c/i2c-algo-bit.h> > #include <i2c/i2c-mux.h> > #include <init.h> > +#include <gpio.h> > +#include <of_gpio.h> > > #define PCA954X_MAX_NCHANS 8 > > @@ -179,6 +181,7 @@ static int pca954x_probe(struct device_d *dev) > int num, force; > struct pca954x *data; > int ret = -ENODEV; > + int gpio; > > data = kzalloc(sizeof(struct pca954x), GFP_KERNEL); > if (!data) { > @@ -188,6 +191,10 @@ static int pca954x_probe(struct device_d *dev) > > i2c_set_clientdata(client, data); > > + gpio = of_get_named_gpio(dev->device_node, "reset-gpios", 0); > + if (gpio_is_valid(gpio)) > + gpio_direction_output(gpio, 1); > + > /* Read the mux register at addr to verify > * that the mux is in fact present. > */ > -- > 2.5.5 > > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox