linux/drivers/video/of_videomode.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * generic videomode helper
 *
 * Copyright (c) 2012 Steffen Trumtrar <[email protected]>, Pengutronix
 */
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/of.h>
#include <video/display_timing.h>
#include <video/of_display_timing.h>
#include <video/of_videomode.h>
#include <video/videomode.h>

/**
 * of_get_videomode - get the videomode #<index> from devicetree
 * @np: devicenode with the display_timings
 * @vm: set to return value
 * @index: index into list of display_timings
 *	    (Set this to OF_USE_NATIVE_MODE to use whatever mode is
 *	     specified as native mode in the DT.)
 *
 * DESCRIPTION:
 * Get a list of all display timings and put the one
 * specified by index into *vm. This function should only be used, if
 * only one videomode is to be retrieved. A driver that needs to work
 * with multiple/all videomodes should work with
 * of_get_display_timings instead.
 **/
int of_get_videomode(struct device_node *np, struct videomode *vm,
		     int index)
{ … }
EXPORT_SYMBOL_GPL(…);