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c8afe684 RC |
1 | /* |
2 | * Copyright (C) 2013 Red Hat | |
3 | * Author: Rob Clark <robdclark@gmail.com> | |
4 | * | |
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. | |
8 | * | |
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 | |
12 | * more details. | |
13 | * | |
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/>. | |
16 | */ | |
17 | ||
18 | #ifndef __HDMI_CONNECTOR_H__ | |
19 | #define __HDMI_CONNECTOR_H__ | |
20 | ||
21 | #include <linux/i2c.h> | |
22 | #include <linux/clk.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/regulator/consumer.h> | |
25 | ||
26 | #include "msm_drv.h" | |
27 | #include "hdmi.xml.h" | |
28 | ||
29 | ||
30 | struct hdmi_phy; | |
dada25bd | 31 | struct hdmi_platform_config; |
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32 | |
33 | struct hdmi { | |
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34 | struct kref refcount; |
35 | ||
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36 | struct drm_device *dev; |
37 | struct platform_device *pdev; | |
38 | ||
dada25bd | 39 | const struct hdmi_platform_config *config; |
c8afe684 | 40 | |
dada25bd | 41 | void __iomem *mmio; |
c8afe684 | 42 | |
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43 | struct regulator *hpd_regs[2]; |
44 | struct regulator *pwr_regs[2]; | |
45 | struct clk *hpd_clks[3]; | |
46 | struct clk *pwr_clks[2]; | |
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47 | |
48 | struct hdmi_phy *phy; | |
49 | struct i2c_adapter *i2c; | |
50 | struct drm_connector *connector; | |
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51 | struct drm_bridge *bridge; |
52 | ||
53 | /* the encoder we are hooked to (outside of hdmi block) */ | |
54 | struct drm_encoder *encoder; | |
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55 | |
56 | bool hdmi_mode; /* are we in hdmi mode? */ | |
57 | ||
58 | int irq; | |
59 | }; | |
60 | ||
61 | /* platform config data (ie. from DT, or pdata) */ | |
62 | struct hdmi_platform_config { | |
63 | struct hdmi_phy *(*phy_init)(struct hdmi *hdmi); | |
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64 | const char *mmio_name; |
65 | ||
66 | /* regulators that need to be on for hpd: */ | |
67 | const char **hpd_reg_names; | |
68 | int hpd_reg_cnt; | |
69 | ||
70 | /* regulators that need to be on for screen pwr: */ | |
71 | const char **pwr_reg_names; | |
72 | int pwr_reg_cnt; | |
73 | ||
74 | /* clks that need to be on for hpd: */ | |
75 | const char **hpd_clk_names; | |
76 | int hpd_clk_cnt; | |
77 | ||
78 | /* clks that need to be on for screen pwr (ie pixel clk): */ | |
79 | const char **pwr_clk_names; | |
80 | int pwr_clk_cnt; | |
81 | ||
82 | /* gpio's: */ | |
83 | int ddc_clk_gpio, ddc_data_gpio, hpd_gpio, mux_en_gpio, mux_sel_gpio; | |
84 | ||
85 | /* older devices had their own irq, mdp5+ it is shared w/ mdp: */ | |
86 | bool shared_irq; | |
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87 | }; |
88 | ||
89 | void hdmi_set_mode(struct hdmi *hdmi, bool power_on); | |
a3376e3e | 90 | void hdmi_destroy(struct kref *kref); |
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91 | |
92 | static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data) | |
93 | { | |
94 | msm_writel(data, hdmi->mmio + reg); | |
95 | } | |
96 | ||
97 | static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg) | |
98 | { | |
99 | return msm_readl(hdmi->mmio + reg); | |
100 | } | |
101 | ||
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102 | static inline struct hdmi * hdmi_reference(struct hdmi *hdmi) |
103 | { | |
104 | kref_get(&hdmi->refcount); | |
105 | return hdmi; | |
106 | } | |
107 | ||
108 | static inline void hdmi_unreference(struct hdmi *hdmi) | |
109 | { | |
110 | kref_put(&hdmi->refcount, hdmi_destroy); | |
111 | } | |
112 | ||
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113 | /* |
114 | * The phy appears to be different, for example between 8960 and 8x60, | |
115 | * so split the phy related functions out and load the correct one at | |
116 | * runtime: | |
117 | */ | |
118 | ||
119 | struct hdmi_phy_funcs { | |
120 | void (*destroy)(struct hdmi_phy *phy); | |
121 | void (*reset)(struct hdmi_phy *phy); | |
122 | void (*powerup)(struct hdmi_phy *phy, unsigned long int pixclock); | |
123 | void (*powerdown)(struct hdmi_phy *phy); | |
124 | }; | |
125 | ||
126 | struct hdmi_phy { | |
127 | const struct hdmi_phy_funcs *funcs; | |
128 | }; | |
129 | ||
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130 | struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi); |
131 | struct hdmi_phy *hdmi_phy_8x60_init(struct hdmi *hdmi); | |
dada25bd | 132 | struct hdmi_phy *hdmi_phy_8x74_init(struct hdmi *hdmi); |
c8afe684 | 133 | |
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134 | /* |
135 | * hdmi bridge: | |
136 | */ | |
137 | ||
138 | struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi); | |
139 | ||
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140 | /* |
141 | * hdmi connector: | |
142 | */ | |
143 | ||
144 | void hdmi_connector_irq(struct drm_connector *connector); | |
a3376e3e | 145 | struct drm_connector *hdmi_connector_init(struct hdmi *hdmi); |
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146 | |
147 | /* | |
148 | * i2c adapter for ddc: | |
149 | */ | |
150 | ||
151 | void hdmi_i2c_irq(struct i2c_adapter *i2c); | |
152 | void hdmi_i2c_destroy(struct i2c_adapter *i2c); | |
153 | struct i2c_adapter *hdmi_i2c_init(struct hdmi *hdmi); | |
154 | ||
155 | #endif /* __HDMI_CONNECTOR_H__ */ |