Copying DT maintainer and mailing list.
On Tue, Mar 12, 2019 at 08:26:58AM -0700, Guenter Roeck wrote: > On Tue, Mar 12, 2019 at 01:14:39PM +0000, Carlos Menin wrote: > > Cells in DT are 32-bits in size. of_property_read_u8() does not work > > properly as it returns incorrect values in little-endian architectures. > > Fix it by using of_property_read_u32() instead. > > > Are you saying that pretty much all callers of of_property_read_u8() > have this problem ? I would not rule that out, but it seems hard to > believe. > > Guenter > > > Signed-off-by: Carlos Menin <[email protected]> > > --- > > drivers/hwmon/adc128d818.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/hwmon/adc128d818.c b/drivers/hwmon/adc128d818.c > > index ca794bf..b5eb3c0 100644 > > --- a/drivers/hwmon/adc128d818.c > > +++ b/drivers/hwmon/adc128d818.c > > @@ -70,7 +70,7 @@ struct adc128_data { > > struct regulator *regulator; > > int vref; /* Reference voltage in mV */ > > struct mutex update_lock; > > - u8 mode; /* Operation mode */ > > + u32 mode; /* Operation mode */ > > bool valid; /* true if following fields are valid */ > > unsigned long last_updated; /* In jiffies */ > > > > @@ -467,7 +467,7 @@ static int adc128_probe(struct i2c_client *client, > > } > > > > /* Operation mode is optional. If unspecified, keep current mode */ > > - if (of_property_read_u8(dev->of_node, "ti,mode", &data->mode) == 0) { > > + if (of_property_read_u32(dev->of_node, "ti,mode", &data->mode) == 0) { > > if (data->mode > 3) { > > dev_err(dev, "invalid operation mode %d\n", > > data->mode); > > -- > > 2.7.4 > >
