drivers/gpu/drm/exynos/exynos_hdmi.h

   1 /*
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  * Authors:
   5  *      Inki Dae <inki.dae@samsung.com>
   6  *      Seung-Woo Kim <sw0312.kim@samsung.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  25  * OTHER DEALINGS IN THE SOFTWARE.
  26  */
  27
  28 #ifndef _EXYNOS_HDMI_H_
  29 #define _EXYNOS_HDMI_H_
  30
  31 struct hdmi_conf {
  32         int width;
  33         int height;
  34         int vrefresh;
  35         bool interlace;
  36         const u8 *hdmiphy_data;
  37         const struct hdmi_preset_conf *conf;
  38 };
  39
  40 struct hdmi_resources {
  41         struct clk *hdmi;
  42         struct clk *sclk_hdmi;
  43         struct clk *sclk_pixel;
  44         struct clk *sclk_hdmiphy;
  45         struct clk *hdmiphy;
  46         struct regulator_bulk_data *regul_bulk;
  47         int regul_count;
  48 };
  49
  50 struct hdmi_context {
  51         struct device                   *dev;
  52         struct drm_device               *drm_dev;
  53         struct fb_videomode             *default_timing;
  54         unsigned int                    default_win;
  55         unsigned int                    default_bpp;
  56         bool                            hpd_handle;
  57         bool                            enabled;
  58
  59         struct resource                 *regs_res;
  60         /** base address of HDMI registers */
  61         void __iomem *regs;
  62         /** HDMI hotplug interrupt */
  63         unsigned int irq;
  64         /** workqueue for delayed work */
  65         struct workqueue_struct *wq;
  66         /** hotplug handling work */
  67         struct work_struct hotplug_work;
  68
  69         struct i2c_client *ddc_port;
  70         struct i2c_client *hdmiphy_port;
  71
  72         /** current hdmiphy conf index */
  73         int cur_conf;
  74         /** other resources */
  75         struct hdmi_resources res;
  76
  77         void *parent_ctx;
  78 };
  79
  80
  81 void hdmi_attach_ddc_client(struct i2c_client *ddc);
  82 void hdmi_attach_hdmiphy_client(struct i2c_client *hdmiphy);
  83
  84 extern struct i2c_driver hdmiphy_driver;
  85 extern struct i2c_driver ddc_driver;
  86
  87 #endif