2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef __HDMI_CONNECTOR_H__
19 #define __HDMI_CONNECTOR_H__
21 #include <linux/i2c.h>
22 #include <linux/clk.h>
23 #include <linux/platform_device.h>
24 #include <linux/regulator/consumer.h>
25 #include <linux/hdmi.h>
32 struct hdmi_platform_config;
36 struct hdmi_audio_infoframe infoframe;
41 struct drm_device *dev;
42 struct platform_device *pdev;
44 const struct hdmi_platform_config *config;
47 struct hdmi_audio audio;
51 unsigned long int pixclock;
55 struct regulator *hpd_regs[2];
56 struct regulator *pwr_regs[2];
57 struct clk *hpd_clks[3];
58 struct clk *pwr_clks[2];
61 struct i2c_adapter *i2c;
62 struct drm_connector *connector;
63 struct drm_bridge *bridge;
65 /* the encoder we are hooked to (outside of hdmi block) */
66 struct drm_encoder *encoder;
68 bool hdmi_mode; /* are we in hdmi mode? */
73 /* platform config data (ie. from DT, or pdata) */
74 struct hdmi_platform_config {
75 struct hdmi_phy *(*phy_init)(struct hdmi *hdmi);
76 const char *mmio_name;
78 /* regulators that need to be on for hpd: */
79 const char **hpd_reg_names;
82 /* regulators that need to be on for screen pwr: */
83 const char **pwr_reg_names;
86 /* clks that need to be on for hpd: */
87 const char **hpd_clk_names;
88 const long unsigned *hpd_freq;
91 /* clks that need to be on for screen pwr (ie pixel clk): */
92 const char **pwr_clk_names;
96 int ddc_clk_gpio, ddc_data_gpio, hpd_gpio, mux_en_gpio, mux_sel_gpio;
100 void hdmi_set_mode(struct hdmi *hdmi, bool power_on);
102 static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data)
104 msm_writel(data, hdmi->mmio + reg);
107 static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg)
109 return msm_readl(hdmi->mmio + reg);
113 * The phy appears to be different, for example between 8960 and 8x60,
114 * so split the phy related functions out and load the correct one at
118 struct hdmi_phy_funcs {
119 void (*destroy)(struct hdmi_phy *phy);
120 void (*reset)(struct hdmi_phy *phy);
121 void (*powerup)(struct hdmi_phy *phy, unsigned long int pixclock);
122 void (*powerdown)(struct hdmi_phy *phy);
126 const struct hdmi_phy_funcs *funcs;
129 struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi);
130 struct hdmi_phy *hdmi_phy_8x60_init(struct hdmi *hdmi);
131 struct hdmi_phy *hdmi_phy_8x74_init(struct hdmi *hdmi);
137 int hdmi_audio_update(struct hdmi *hdmi);
138 int hdmi_audio_info_setup(struct hdmi *hdmi, bool enabled,
139 uint32_t num_of_channels, uint32_t channel_allocation,
140 uint32_t level_shift, bool down_mix);
141 void hdmi_audio_set_sample_rate(struct hdmi *hdmi, int rate);
148 struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi);
149 void hdmi_bridge_destroy(struct drm_bridge *bridge);
155 void hdmi_connector_irq(struct drm_connector *connector);
156 struct drm_connector *hdmi_connector_init(struct hdmi *hdmi);
159 * i2c adapter for ddc:
162 void hdmi_i2c_irq(struct i2c_adapter *i2c);
163 void hdmi_i2c_destroy(struct i2c_adapter *i2c);
164 struct i2c_adapter *hdmi_i2c_init(struct hdmi *hdmi);
166 #endif /* __HDMI_CONNECTOR_H__ */