On Fri, 29 Apr 2022 15:01:38 -0700 Gwendal Grignou <gwendal@xxxxxxxxxxxx> wrote: > Add ability to set the precharge internal resistance from the device > tree. > > Signed-off-by: Gwendal Grignou <gwendal@xxxxxxxxxxxx> > Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx> Applied > --- > Changes since v4: > - Added missing tests when property is not found. > > Changes since v3: > - Added Review tags. > > Changes since v2: > - Change kOhms into ohms. > > Changes since v1: > - Suffix field with kOhms unit. > - Split patch in 2. > > drivers/iio/proximity/sx9324.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/drivers/iio/proximity/sx9324.c b/drivers/iio/proximity/sx9324.c > index a7d9a53692a6d..8eec73f7641ee 100644 > --- a/drivers/iio/proximity/sx9324.c > +++ b/drivers/iio/proximity/sx9324.c > @@ -72,6 +72,7 @@ > #define SX9324_REG_AFE_CTRL8 0x2c > #define SX9324_REG_AFE_CTRL8_RESERVED 0x10 > #define SX9324_REG_AFE_CTRL8_RESFILTIN_4KOHM 0x02 > +#define SX9324_REG_AFE_CTRL8_RESFILTIN_MASK GENMASK(3, 0) > #define SX9324_REG_AFE_CTRL9 0x2d > #define SX9324_REG_AFE_CTRL9_AGAIN_1 0x08 > > @@ -893,6 +894,18 @@ sx9324_get_default_reg(struct device *dev, int idx, > reg_def->def |= FIELD_PREP(SX9324_REG_AFE_CTRL4_RESOLUTION_MASK, > raw); > break; > + case SX9324_REG_AFE_CTRL8: > + ret = device_property_read_u32(dev, > + "semtech,input-precharge-resistor-ohms", > + &raw); > + if (ret) > + break; > + > + reg_def->def &= ~SX9324_REG_AFE_CTRL8_RESFILTIN_MASK; > + reg_def->def |= FIELD_PREP(SX9324_REG_AFE_CTRL8_RESFILTIN_MASK, > + raw / 2000); > + break; > + > case SX9324_REG_ADV_CTRL5: > ret = device_property_read_u32(dev, "semtech,startup-sensor", > &start);
