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authorArthur Heymans <arthur@aheymans.xyz>2017-04-29 14:31:32 +0200
committerNico Huber <nico.h@gmx.de>2017-05-03 16:19:03 +0200
commit20cb85fa985206fe1d51f87d4fcb9c95e5b44f7a (patch)
treeffd861017cd549c4f1aefd8a82b920620e7cf367 /src/superio
parentdbe81612adba70d02831ffae57dd406fa08785b8 (diff)
nb/intel/gm45: Set display backlight according to EDID string
Add some known good values for some thinkpads displays. Known good means that at this pwm frequency the display is evenly lit on all duty cycles, the display makes minimal to no noise at lower duty cycles and the display does not flicker. This values differs from vendor (which uses an obviously wrong display clock (190MHz instead of 320MHz) resulting in frequency more than 60% off the intended value. TESTED on Thinkpad X200 with edid ascii string in list and removed from list to see if notice message is shown. Change-Id: Id7bc0d453fac31e806852206ba2c895720b2c843 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19500 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
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