LXR linux/drivers/gpu/drm/pl111/pl111

   1/*
   2 *
   3 * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved.
   4 *
   5 *
   6 * Parts of this file were based on sources as follows:
   7 *
   8 * Copyright (c) 2006-2008 Intel Corporation
   9 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
  10 * Copyright (C) 2011 Texas Instruments
  11 *
  12 * This program is free software and is provided to you under the terms of the
  13 * GNU General Public License version 2 as published by the Free Software
  14 * Foundation, and any use by you of this program is subject to the terms of
  15 * such GNU licence.
  16 *
  17 */
  18
  19#ifndef _PL111_DRM_H_
  20#define _PL111_DRM_H_
  21
  22#include <drm/drm_gem.h>
  23#include <drm/drm_simple_kms_helper.h>
  24#include <linux/clk-provider.h>
  25
  26#define CLCD_IRQ_NEXTBASE_UPDATE BIT(2)
  27
  28struct drm_minor;
  29
  30struct pl111_drm_connector {
  31        struct drm_connector connector;
  32        struct drm_panel *panel;
  33};
  34
  35struct pl111_drm_dev_private {
  36        struct drm_device *drm;
  37
  38        struct pl111_drm_connector connector;
  39        struct drm_simple_display_pipe pipe;
  40        struct drm_fbdev_cma *fbdev;
  41
  42        void *regs;
  43        /* The pixel clock (a reference to our clock divider off of CLCDCLK). */
  44        struct clk *clk;
  45        /* pl111's internal clock divider. */
  46        struct clk_hw clk_div;
  47        /* Lock to sync access to CLCD_TIM2 between the common clock
  48         * subsystem and pl111_display_enable().
  49         */
  50        spinlock_t tim2_lock;
  51};
  52
  53#define to_pl111_connector(x) \
  54        container_of(x, struct pl111_drm_connector, connector)
  55
  56int pl111_display_init(struct drm_device *dev);
  57int pl111_enable_vblank(struct drm_device *drm, unsigned int crtc);
  58void pl111_disable_vblank(struct drm_device *drm, unsigned int crtc);
  59irqreturn_t pl111_irq(int irq, void *data);
  60int pl111_connector_init(struct drm_device *dev);
  61int pl111_encoder_init(struct drm_device *dev);
  62int pl111_dumb_create(struct drm_file *file_priv,
  63                      struct drm_device *dev,
  64                      struct drm_mode_create_dumb *args);
  65int pl111_debugfs_init(struct drm_minor *minor);
  66
  67#endif /* _PL111_DRM_H_ */
  68