From: Tomas Novotny <tomas@xxxxxxxxxx>
VCNL4200 is another proximity and ambient light sensor from Vishay. I'm
adding support for that sensor to vcnl4000 driver, which currently supports
VCNL4000/10/20.
The VCNL4200 is a bit different from VCNL4000/10/20. Common things are:
- integrated proximity and ambient light sensor
- SMBus compatible I2C interface
- Vishay VCNL4xxx series...
Different things are:
- totally different register map
- 8-bit vs. 16-bit registers. The 16-bit values are in two 8-bit registers
on VCNL4000. 16-bit value is in one register on VCNL4200.
- VCNL4000 has flags when the measurement is finished
- blocking read is implemented for vcnl4200 (there is no 'ready' flag, just
interrupts)
It is tested on VCNL4020 and VCNL4200.
Changes in v3:
- improve commit message of 2/4 (clearly state that it is groundwork for
another change)
- add vcnl4020 device id to the list of supported ids
Changes in v2:
- reading light and proximity values for vcnl4200 is blocking (if you
request new value too early)
- patches 2 and 3 were added; original patch 2 is now patch 4
- vcnl4010 id is handled (patch 2)
- warn user on incorrect usage of vcnl40{0,1}0 id (patch 3)
- minor stuff (add parenthesis, switch instead of if, rename sensors to
channels, fix return)
Tomas Novotny (4):
iio: vcnl4000: make the driver extendable
iio: vcnl4000: add VCNL4010 and VCNL4020 device id
iio: vcnl4000: warn on incorrectly specified device id
iio: vcnl4000: add support for VCNL4200
drivers/iio/light/Kconfig | 5 +-
drivers/iio/light/vcnl4000.c | 220 ++++++++++++++++++++++++++++++++++++++-----
2 files changed, 197 insertions(+), 28 deletions(-)
--
2.12.3
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