unsubscribe linux-can On Mon, Dec 9, 2019 at 3:48 AM Sean Nyekjaer <sean@xxxxxxxxxx> wrote: > > It's a good idea to reset a ip-block/spi device before using it, > this patch will reset the device. > > Signed-off-by: Sean Nyekjaer <sean@xxxxxxxxxx> > --- > drivers/net/can/m_can/tcan4x5x.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x.c > index 7f26c2d53f8c..dd812d40d475 100644 > --- a/drivers/net/can/m_can/tcan4x5x.c > +++ b/drivers/net/can/m_can/tcan4x5x.c > @@ -361,14 +361,15 @@ static int tcan4x5x_parse_config(struct m_can_classdev *cdev) > > tcan4x5x_disable_wake(cdev); > } > - > tcan4x5x->reset_gpio = devm_gpiod_get_optional(cdev->dev, "reset", > - GPIOD_OUT_LOW); > + GPIOD_OUT_HIGH); > if (IS_ERR(tcan4x5x->reset_gpio)) > tcan4x5x->reset_gpio = NULL; > > usleep_range(700, 1000); > > + gpiod_set_value(tcan4x5x->reset_gpio, 0); > + > tcan4x5x->device_state_gpio = devm_gpiod_get_optional(cdev->dev, > "device-state", > GPIOD_IN); > -- > 2.24.0 >
