drivers/gpu/drm/pl111/pl111_drm.h

   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
  28 struct drm_minor;
  29
  30 struct pl111_drm_connector {
  31         struct drm_connector connector;
  32         struct drm_panel *panel;
  33 };
  34
  35 struct 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
  56 int pl111_display_init(struct drm_device *dev);
  57 int pl111_enable_vblank(struct drm_device *drm, unsigned int crtc);
  58 void pl111_disable_vblank(struct drm_device *drm, unsigned int crtc);
  59 irqreturn_t pl111_irq(int irq, void *data);
  60 int pl111_connector_init(struct drm_device *dev);
  61 int pl111_encoder_init(struct drm_device *dev);
  62 int pl111_dumb_create(struct drm_file *file_priv,
  63                       struct drm_device *dev,
  64                       struct drm_mode_create_dumb *args);
  65 int pl111_debugfs_init(struct drm_minor *minor);
  66
  67 #endif /* _PL111_DRM_H_ */