tree 121a730685dab830c412f7c09027b0b04917d307
parent 477bc918c2323a51f577cd892ca49376f6feb5d5
author Samu Onkalo <samu.p.onkalo@nokia.com> 1287748651 -0400
committer Guenter Roeck <guenter.roeck@ericsson.com> 1288041099 -0700

hwmon: lis3: use block read to access data registers

Add optional blockread function to interface driver. If available
the chip driver uses it for data register access. For 12 bit device
it reads 6 bytes to get 3*16bit data. For 8 bit device it reads out
5 bytes since every second byte is dummy.
This optimizes bus usage and reduces number of operations and
interrupts needed for one data update.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>