Re: [PATCH v3 0/2] Add ps_it attributes for vcnl4040

[Jonathan Cameron <Jonathan.Cameron@Huawei.com>]

On Mon, 7 Nov 2022 08:47:54 +0100
Marten Lindahl <martenli@axis.com> wrote:

> On Mon, Sep 26, 2022 at 11:18:58AM +0200, Mårten Lindahl wrote:
> > Currently there is no way for userspace to make any configuration of
> > the VCNL4040 sensors, but only the sensor readings are exported in
> > sysfs. To support configuration for proximity integration time value,
> > sysfs attributes for this needs to be exported.
> > 
> > To begin with the runtime power management turns both sensors (ALS, and
> > PS) on before reading the sensor register values and then switches
> > them off again. But when doing so it writes the whole register instead
> > of just switching the power on/off bit. This needs to be fixed in order
> > to make other persistent configurations.
> > 
> > Kind regards
> > Mårten Lindahl  
> 
> Hi!
> 
> I suspect this mail may have slipped through unnoticed since there has
> not been any comments on it. v2 had some minor comments which I hope I
> fixed.
> 
> Jonathan?

It's queued up. Not sure why I failed to send an email though - I'll probably
find it's in my outbox on the other laptop or something equally silly.

https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git/commit/drivers/iio/light/vcnl4000.c?h=testing&id=1a09d52bf0cab10580ab52f04f8b182f279be455

Jonathan

> 
> Kind regards
> Mårten
> 
> > 
> > Changes in v3:
> >  - Rename defines for ALS/PS shutdown bits
> >  - Add local variable for building register value
> > 
> > Changes in v2:
> >  - Removed unnecessary switch for chip id
> >  - Guard read/write sequence against potential race
> >  - Remove confusing boolean operation
> >  - Use bitmask macros instead of local field shifting
> >  - Use .read_avail callback instead of using IIO_CONST_ATTR
> >  - Skip [PATCH 2/3] iio: light: vcnl4000: Add enable attributes for vcnl4040
> > 
> > Mårten Lindahl (2):
> >   iio: light: vcnl4000: Preserve conf bits when toggle power
> >   iio: light: vcnl4000: Add ps_it attributes for vcnl4040
> > 
> >  drivers/iio/light/vcnl4000.c | 185 +++++++++++++++++++++++++++++++++--
> >  1 file changed, 179 insertions(+), 6 deletions(-)
> > 
> > -- 
> > 2.30.2
> >