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dm: video: Add a operation to display uclass

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The current display class only allow to get timing from edid.
So add a operation to get timing directly from driver.
In driver, I will use fdtdec_decode_display_timing to get timing.

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jacob Chen
2016-03-14 11:20:14 +08:00
committed by Anatolij Gustschin
parent df61a74e68
commit eab314f590
2 changed files with 13 additions and 1 deletions
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11
include/display.h
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@@ -23,7 +23,7 @@ struct display_plat {
};
/**
* display_read_timing() - Read timing information from EDID
* display_read_timing() - Read timing information
*
* @dev: Device to read from
* @return 0 if OK, -ve on error
@@ -42,6 +42,15 @@ int display_enable(struct udevice *dev, int panel_bpp,
const struct display_timing *timing);
struct dm_display_ops {
/**
* read_timing() - Read information directly
*
* @dev: Device to read from
* @timing: Display timings
* @return 0 if OK, -ve on error
*/
int (*read_timing)(struct udevice *dev, struct display_timing *timing);
/**
* read_edid() - Read information from EDID
*