path: root/drivers/gpu/drm/mgag200/mgag200_mode.c

/*
 * Copyright 2010 Matt Turner.
 * Copyright 2012 Red Hat
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License version 2. See the file COPYING in the main
 * directory of this archive for more details.
 *
 * Authors: Matthew Garrett
 *	    Matt Turner
 *	    Dave Airlie
 */

#include <linux/delay.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>

#include "mgag200_drv.h"

#define MGAG200_LUT_SIZE 256

/*
 * This file contains setup code for the CRTC.
 */

static void mga_crtc_load_lut(struct drm_crtc *crtc)
{
	struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
	struct drm_device *dev = crtc->dev;
	struct mga_device *mdev = dev->dev_private;
	int i;

	if (!crtc->enabled)
		return;

	WREG8(DAC_INDEX + MGA1064_INDEX