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| author | Nico Huber <nico.h@gmx.de> | 2016-01-09 23:33:30 +0100 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-01-14 19:08:44 +0100 |
| commit | 3cbe62fe3700f11bc820171b8efda1ee4954c198 (patch) | |
| tree | eeb6c9913fa9590a7a5a8ac8ce6af84b7d06218d /src/mainboard/lenovo/x200 | |
| parent | b851cc69d67a98dd4df43e4ac8b56b7533aa13b6 (diff) | |
| download | coreboot-3cbe62fe3700f11bc820171b8efda1ee4954c198.tar.xz | |
mb/lenovo/x200: Add panel power sequence values
Values are taken from the vendor BIOS of my X200s. Notable effect:
Stops display from flashing during native graphics init / Linux mode
setting.
Change-Id: Ie5d9efc010a78dd46317b6bbdb7bfacc2c9d2cbf
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/12886
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard/lenovo/x200')
| -rw-r--r-- | src/mainboard/lenovo/x200/devicetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/x200/devicetree.cb b/src/mainboard/lenovo/x200/devicetree.cb index 36a1939369..92c41d73d9 100644 --- a/src/mainboard/lenovo/x200/devicetree.cb +++ b/src/mainboard/lenovo/x200/devicetree.cb @@ -3,6 +3,11 @@ chip northbridge/intel/gm45 register "gfx.ndid" = "3" register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410, 0x80000410, 0x00000005 }" + register "gpu_panel_power_up_delay" = "250" # T1+T2: 25ms + register "gpu_panel_power_down_delay" = "250" # T3: 25ms + register "gpu_panel_power_backlight_on_delay" = "2500" # T5: 250ms + register "gpu_panel_power_backlight_off_delay" = "2500" # Tx: 250ms + register "gpu_panel_power_cycle_delay" = "3" # T4: 200ms register "gfx.use_spread_spectrum_clock" = "1" register "gfx.link_frequency_270_mhz" = "1" |