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siemens/mc_tcu3: Increase LCD backlight turn-on delay to 500 ms 

Due to different LCD panel requirements the delay between LVDS becomes
active and the backlight is switched on needs to be increased to 500 ms.

Change-Id: I09029624469aef412141c7b46224d48557ba4af1
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/16875
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Werner Zeh 2016-10-04 11:59:59 +02:00
parent 52669fc4dc
commit 77ba882c67
1 changed files with 1 additions and 1 deletions
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src/mainboard/siemens/mc_tcu3/ptn3460.c
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@ -80,7 +80,7 @@ int ptn3460_init(char *hwi_block)
cfg.lvds_interface_ctrl2 = 0x03; /* no clock spreading, 300 mV LVDS swing */
cfg.lvds_interface_ctrl3 = 0x00; /* no LVDS signal swap */
cfg.t2_delay = 1; /* Delay T2 (VDD to LVDS active) by 16 ms */
cfg.t3_timing = 5; /* 250 ms from LVDS to backlight active */
cfg.t3_timing = 10; /* 500 ms from LVDS to backlight active */
cfg.t12_timing = 20; /* 1 second re-power delay */
cfg.t4_timing = 3; /* 150 ms backlight off to LVDS inactive */
cfg.t5_delay = 1; /* Delay T5 (LVDS to VDD inactive) by 16 ms */