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drm/mipi_dbi: Add support for display offsets

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If the resolution of the TFT display is smaller than the maximum
resolution supported by the display controller, the display may be
connected to the driver output arrays with a horizontal and/or vertical
offset, leading to a shifted image.

Add support for specifying these offsets.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200115124548.3951-4-geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven
2020-01-15 13:45:46 +01:00
committed by Sam Ravnborg
parent 3a1a6be40b
commit f41a8a6989
2 changed files with 32 additions and 10 deletions
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12
include/drm/drm_mipi_dbi.h
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@@ -109,6 +109,18 @@ struct mipi_dbi_dev {
*/
unsigned int rotation;
/**
* @left_offset: Horizontal offset of the display relative to the
* controller's driver array
*/
unsigned int left_offset;
/**
* @top_offset: Vertical offset of the display relative to the
* controller's driver array
*/
unsigned int top_offset;
/**
* @backlight: backlight device (optional)
*/