xref: /openbmc/linux/drivers/gpu/drm/pl111/pl111_drm.h (revision 001485d5)

/*
 *
 * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved.
 *
 *
 * Parts of this file were based on sources as follows:
 *
 * Copyright (c) 2006-2008 Intel Corporation
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (C) 2011 Texas Instruments
 *
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms of
 * such GNU licence.
 *
 */

#ifndef _PL111_DRM_H_
#define _PL111_DRM_H_

#include <drm/drm_gem.h>
#include <drm/drm_simple_kms_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <drm/drm_panel.h>
#include <drm/drm_bridge.h>
#include <linux/clk-provider.h>

#define CLCD_IRQ_NEXTBASE_UPDATE BIT(2)

struct drm_minor;

struct pl111_drm_dev_private {
	struct drm_device *drm;

	struct drm_connector *connector;
	struct drm_panel *panel;
	struct drm_bridge *bridge;
	struct drm_simple_display_pipe pipe;
	struct drm_fbdev_cma *fbdev;

	void *regs;
	/* The pixel clock (a reference to our clock divider off of CLCDCLK). */
	struct clk *clk;
	/* pl111's internal clock divider. */
	struct clk_hw clk_div;
	/* Lock to sync access to CLCD_TIM2 between the common clock
	 * subsystem and pl111_display_enable().
	 */
	spinlock_t tim2_lock;
};

int pl111_display_init(struct drm_device *dev);
int pl111_enable_vblank(struct drm_device *drm, unsigned int crtc);
void pl111_disable_vblank(struct drm_device *drm, unsigned int crtc);
irqreturn_t pl111_irq(int irq, void *data);
int pl111_debugfs_init(struct drm_minor *minor);

#endif /* _PL111_DRM_H_ */