cc3f414cf2
This adds support for reading display timings from DT into a struct display_timings. The of_display_timing implementation supports multiple subnodes. All children are read into an array, that can be queried. If no native mode is specified, the first subnode will be used. For cases where the graphics driver knows there can be only one mode description or where the driver only supports one mode, a helper function of_get_videomode is added, that gets a struct videomode from DT. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Afzal Mohammed <Afzal@ti.com> Tested-by: Rob Clark <robclark@gmail.com> Tested-by: Leela Krishna Amudala <leelakrishna.a@gmail.com>
20 lines
431 B
C
20 lines
431 B
C
/*
|
|
* Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
|
|
*
|
|
* display timings of helpers
|
|
*
|
|
* This file is released under the GPLv2
|
|
*/
|
|
|
|
#ifndef __LINUX_OF_DISPLAY_TIMING_H
|
|
#define __LINUX_OF_DISPLAY_TIMING_H
|
|
|
|
struct device_node;
|
|
struct display_timings;
|
|
|
|
#define OF_USE_NATIVE_MODE -1
|
|
|
|
struct display_timings *of_get_display_timings(struct device_node *np);
|
|
int of_display_timings_exist(struct device_node *np);
|
|
|
|
#endif
|