drm/mediatek: Add gamma correction.

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Add gamma set function to correct brightness values.
It applies arbitrary mapping curve to compensate the
incorrect transfer function of the panel.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

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Bibby Hsieh 2016-07-28 10:22:54 +08:00 • committed by Philipp Zabel

parent e0a5d33702

commit 2f3f4dda74

4 changed files with 48 additions and 1 deletions

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7

drivers/gpu/drm/mediatek/mtk_drm_crtc.c

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1

drivers/gpu/drm/mediatek/mtk_drm_crtc.h

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31

drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c

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10

drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h

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