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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>
19 lines
367 B
C
19 lines
367 B
C
/*
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* Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
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*
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* videomode of-helpers
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*
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* This file is released under the GPLv2
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*/
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#ifndef __LINUX_OF_VIDEOMODE_H
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#define __LINUX_OF_VIDEOMODE_H
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struct device_node;
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struct videomode;
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int of_get_videomode(struct device_node *np, struct videomode *vm,
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int index);
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#endif /* __LINUX_OF_VIDEOMODE_H */
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