Title: [9179] trunk/drivers/video/backlight/adp8870_bl.c: video: backlight: adp8870: Fix ambient light zone overwrite handling
- Revision
- 9179
- Author
- hennerich
- Date
- 2010-09-29 04:46:24 -0400 (Wed, 29 Sep 2010)
Log Message
video: backlight: adp8870: Fix ambient light zone overwrite handling
Get/Set current Ambient Light Zone. Reading returns integer between 1..5
1 = Daylight, 2 = bright, ?\226?\128?\166, 5 = dark). Writing a value between 1..5
forces the Backlight controller to enter the corresponding Ambient Light Zone.
Writing 0 returns to normal operation.
Make sure we subtract 1, the register definition (CFGR:BLV) requires it.
Modified Paths
Diff
Modified: trunk/drivers/video/backlight/adp8870_bl.c (9178 => 9179)
--- trunk/drivers/video/backlight/adp8870_bl.c 2010-09-29 08:43:16 UTC (rev 9178)
+++ trunk/drivers/video/backlight/adp8870_bl.c 2010-09-29 08:46:24 UTC (rev 9179)
@@ -714,7 +714,7 @@
mutex_lock(&data->lock);
adp8870_read(data->client, ADP8870_CFGR, ®_val);
reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
- reg_val |= val << CFGR_BLV_SHIFT;
+ reg_val |= (val - 1) << CFGR_BLV_SHIFT;
adp8870_write(data->client, ADP8870_CFGR, reg_val);
mutex_unlock(&data->lock);
}
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