Re: [PATCH v2 1/2] Changes in w1_therm.c and adding w1_therm.h

[Greg KH]

On Sun, Apr 26, 2020 at 02:36:52PM +0200, Akira shimahara wrote:
> Le dimanche 26 avril 2020 à 09:51 +0200, Greg KH a écrit :
> > On Sat, Apr 25, 2020 at 05:31:41PM +0200, Akira Shimahara wrote:
> > > From: Akira SHIMAHARA <akira215corp@xxxxxxxxx>
> > > 
> > > Patch for enhacement of w1_therm module. Added features :
> > >  - Bulk read : send one command for all the slaves
> > >  		on the bus to trigger temperature conversion
> > >  - Optimized conversion time regarding to device resolution
> > >  - Dedicated sysfs entry for powering read,
> > >  		resolution set/get, eeprom save/restore
> > >  - Alarms settings and reading
> > >  - Code optimization to mitigate bus traffic
> > >  		(devices information are stored to avoid
> > > 		interrogating each device every-time)
> > > 
> > > Following sysfs entry are added :
> > >  - temperature (RO) : return the temperature in 1/1000°
> > >  - ext_power (RO) : return the power status of the device
> > >  - resolution (RW) : get or set the device resolution (supported
> > > devices)
> > >  - eeprom (WO) :trigger a save or restore to/from device EEPROM
> > >  - alarms (RW) : read or write TH and TL in the device RAM
> > >  - therm_bulk_read (RW) : Attribute at master level to trigger
> > >  		bulk read and to survey the progress of devices
> > > conversions
> > >  - w1_slave has been kept for compatibility
> > > 
> > > Main motivation was to improve temperature reading speed, which
> > > depend
> > > on resolution settings of devices. The module store the powwer
> > > status and
> > > the resolution of each device so that during reading operation, no
> > > transaction is required on the bus, which improve speed.
> > > The hardware status is checked as soon as a new device is
> > > detected, 
> > > when a user change occurred, or when the corresponding sys file is 
> > > accessed by user.
> > > 
> > > The bulk read allow to trigger convserion of all devices on the bus
> > > at
> > > the same time. It will apply a strong pull up on the line if at
> > > least
> > > one device required it. The duration of the pull up is the max time
> > > required by a device on the line.
> > > 
> > > Please let me know any feedback you have on this patch.
> > > 
> > > Thanks ahead,
> > > 
> > > Signed-off-by: Akira Shimahara <akira215corp@xxxxxxxxx>
> > > ---
> > > Changes in v2:
> > >  - Adding documentation in Documentatin/ABI/testing/sysfs-driver-
> > > w1_therm
> > >  - Updating existing documentation in
> > > Documentation/w1/slaves/w1_therm.rst
> > > 
> > >  drivers/w1/slaves/w1_therm.c | 1406 ++++++++++++++++++++++++++--
> > > ------
> > >  drivers/w1/slaves/w1_therm.h |  386 ++++++++++
> > >  2 files changed, 1470 insertions(+), 322 deletions(-)
> > >  create mode 100644 drivers/w1/slaves/w1_therm.h
> > 
> > No documentation files are added here :(
> > 
> 
> It's in the PATCH 2/2 included in the previous mail. You want me to
> merge in one commit ?. I thought it was easier for you to keep a track
> of the v1.

What previous mail?  I don't see a patch 2/2 here, did you not cc: me?

thanks,

greg kh