Re: [PATCH v3 2/2] hwmon: (pmbus/isl68137): Add Renesas RAA229639 and RAA229640

[Guenter Roeck <linux@roeck-us.net>]

On Fri, Sep 25, 2026 at 03:06:51PM +0200, Krzysztof Kozlowski wrote:
> On Mon, Sep 21, 2026 at 03:16:36PM +0800, Colin Huang wrote:
> > Add support for the Renesas RAA229639 and RAA229640 PMBus
> > voltage regulator devices.
> > 
> > Both devices are supported by the existing raa_dmpvr2_2rail_nontc
> > driver variant, so no functional changes are required beyond
> > adding the corresponding device IDs and OF match entries.
> > 
> > Signed-off-by: Colin Huang <u8813345@gmail.com>
> > ---
> >  drivers/hwmon/pmbus/isl68137.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c
> > index 2f7f825bfb69..15b4e3f15f11 100644
> > --- a/drivers/hwmon/pmbus/isl68137.c
> > +++ b/drivers/hwmon/pmbus/isl68137.c
> > @@ -456,6 +456,8 @@ static const struct i2c_device_id raa_dmpvr_id[] = {
> >  	{ .name = "raa229004", .driver_data = raa_dmpvr2_2rail },
> >  	{ .name = "raa229141", .driver_data = raa_dmpvr2_2rail_pmbus },
> >  	{ .name = "raa229621", .driver_data = raa_dmpvr2_2rail },
> > +	{ .name = "raa229639", .driver_data = raa_dmpvr2_2rail_nontc },
> > +	{ .name = "raa229640", .driver_data = raa_dmpvr2_2rail_nontc },
> 
> The entire point of fallback is to avoid this change. Why do you need
> this?
> 

I personally like to have it for this driver because it makes it easy to
track which device require which configuration without having to track down
devicetree fallbacks.

Guenter