On Fri, Sep 05, 2014 at 06:07:36PM +0200, Gregory Hermant wrote: > This patch allows to read the REV_ID register in SPI mode and consequently > to properly detect the max3109. Indeed in SPI mode, this register is only > accessible by using indirect addressing. > > Signed-off-by: Gregory Hermant <gregory.hermant@xxxxxxxxxxxxxxxxx> > --- > drivers/tty/serial/max310x.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c > index 5183643..2d911f6 100644 > --- a/drivers/tty/serial/max310x.c > +++ b/drivers/tty/serial/max310x.c > @@ -369,10 +369,13 @@ static int max3109_detect(struct device *dev) > unsigned int val = 0; > int ret; > > - ret = regmap_read(s->regmap, MAX310X_REVID_REG, &val); > + ret = regmap_write(s->regmap, MAX310X_GLOBALCMD_REG, > + MAX310X_EXTREG_ENBL); > if (ret) > return ret; > - > + Always run your patches through checkpatch.pl and never add new problems to the existing codebase :( -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
