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| author |   Michael Hennerich <michael.hennerich@analog.com> | 2010-05-26 03:00:59 -0400 |
|---|---|---|
| committer |   Richard Purdie <rpurdie@linux.intel.com> | 2010-05-26 13:08:33 +0100 |
| commit | c7c06d8a95fd6b83d9f71a0cfecd3f91945d17e5 (patch) | |
| tree | 7e3d5f037fbf47846b6c48a8fb3ae9dcfd3d50d3 /include/linux/i2c | |
| parent | backlight: mbp_nvidia_bl - Fix DMI_SYS_VENDOR for MacBook1,1 (diff) | |
| download | linux-dev-c7c06d8a95fd6b83d9f71a0cfecd3f91945d17e5.tar.xz linux-dev-c7c06d8a95fd6b83d9f71a0cfecd3f91945d17e5.zip | |
backlight: adp8860: add support for ADP8861 & ADP8863
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'include/linux/i2c')
| -rw-r--r-- | include/linux/i2c/adp8860.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/i2c/adp8860.h b/include/linux/i2c/adp8860.h index 115514b7176e..0b4d39855c91 100644 --- a/include/linux/i2c/adp8860.h +++ b/include/linux/i2c/adp8860.h @@ -132,6 +132,23 @@ struct adp8860_backlight_platform_data { u8 led_fade_out; /* LED Fade-Out Timer */ u8 led_fade_law; /* fade-on/fade-off transfer characteristic */ u8 led_on_time; + + /** + * Gain down disable. Setting this option does not allow the + * charge pump to switch to lower gains. NOT AVAILABLE on ADP8860 + * 1 = the charge pump doesn't switch down in gain until all LEDs are 0. + * The charge pump switches up in gain as needed. This feature is + * useful if the ADP8863 charge pump is used to drive an external load. + * This feature must be used when utilizing small fly capacitors + * (0402 or smaller). + * 0 = the charge pump automatically switches up and down in gain. + * This provides optimal efficiency, but is not suitable for driving + * loads that are not connected through the ADP8863 diode drivers. + * Additionally, the charge pump fly capacitors should be low ESR + * and sized 0603 or greater. + */ + + u8 gdwn_dis; }; #endif /* __LINUX_I2C_ADP8860_H */ |