| commit | 176f9f29cec95f88cfa01a8e40741d1fc532add2 | |
| author | Grant Grundler <grundler@google.com> | |
| Tue, 9 Aug 2011 22:18:14 +0000 (9 15:18 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Tue, 23 Aug 2011 20:39:48 +0000 (23 13:39 -0700) | ||
| tree | 57a126e33b2b63fa446a4a32b9992dbccebe4839 | treesnapshot (tar.gz zip) |
| parent | f94aa354d676532448e8e222e737fdd0755fc786 | commitdiff |
STAGING:iio:light: fix ISL29018 init to handle brownout
After a voltage brownout, sensor will now operate correctly.
Page 10 of ISL29018 data sheet and the Intersil Application Note 1534
describe the required initialization sequence:
1. Write 0x00 to register 0x08 (TEST)
2. Write 0x00 to register 0x00 (CMD1)
3. msleep(1)
4. program remaining registers as before
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After a voltage brownout, sensor will now operate correctly.
Page 10 of ISL29018 data sheet and the Intersil Application Note 1534
describe the required initialization sequence:
1. Write 0x00 to register 0x08 (TEST)
2. Write 0x00 to register 0x00 (CMD1)
3. msleep(1)
4. program remaining registers as before
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/staging/iio/light/isl29018.c | diffblobblamehistory |