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| author | Hannes Petermaier <oe5hpm@oevsv.at> | 2015-02-03 13:22:23 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-03-05 20:13:16 -0500 |
| commit | 3b4e16eb530aa3eaa29535a7d511c105c0de963a (patch) | |
| tree | 1e6145c729a8742b0162cb6c4a0c84b67500c5d9 /drivers/block | |
| parent | 5822f5ae7f4112b4969145d28842cde38c58a20b (diff) | |
| download | talos-obmc-uboot-3b4e16eb530aa3eaa29535a7d511c105c0de963a.tar.gz talos-obmc-uboot-3b4e16eb530aa3eaa29535a7d511c105c0de963a.zip | |
drivers/video/am335x-fb: Add possibility to wait for stable power/picture
Often on boards exists a circuit which switches power on/off to LCD display.
Due to the need of limiting the in-rush current the output voltage from this
circuit rises "slowly", so it is necessary to wait a bit (VCC ramp up time)
before starting output on LCD-pins.
This time is specified in <n> ms within the panel-settings, called "pup_delay"
Further some LCDs need a couple of frames to stabilize the image on it.
We have now the possibility to wait some time after starting output on LCD.
This time is also specified in <n> ms within panel-settings, called "pon_delay"
Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
Diffstat (limited to 'drivers/block')
0 files changed, 0 insertions, 0 deletions
