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
;
43 struct drm_device
*dev
;
44 struct platform_device
*pdev
;
46 const struct hdmi_platform_config
*config
;
49 struct hdmi_audio audio
;
53 unsigned long int pixclock
;
57 struct regulator
*hpd_regs
[2];
58 struct regulator
*pwr_regs
[2];
59 struct clk
*hpd_clks
[3];
60 struct clk
*pwr_clks
[2];
63 struct i2c_adapter
*i2c
;
64 struct drm_connector
*connector
;
65 struct drm_bridge
*bridge
;
67 /* the encoder we are hooked to (outside of hdmi block) */
68 struct drm_encoder
*encoder
;
70 bool hdmi_mode
; /* are we in hdmi mode? */
75 /* platform config data (ie. from DT, or pdata) */
76 struct hdmi_platform_config
{
77 struct hdmi_phy
*(*phy_init
)(struct hdmi
*hdmi
);
78 const char *mmio_name
;
80 /* regulators that need to be on for hpd: */
81 const char **hpd_reg_names
;
84 /* regulators that need to be on for screen pwr: */
85 const char **pwr_reg_names
;
88 /* clks that need to be on for hpd: */
89 const char **hpd_clk_names
;
90 const long unsigned *hpd_freq
;
93 /* clks that need to be on for screen pwr (ie pixel clk): */
94 const char **pwr_clk_names
;
98 int ddc_clk_gpio
, ddc_data_gpio
, hpd_gpio
, mux_en_gpio
, mux_sel_gpio
;
100 /* older devices had their own irq, mdp5+ it is shared w/ mdp: */
104 void hdmi_set_mode(struct hdmi
*hdmi
, bool power_on
);
105 void hdmi_destroy(struct kref
*kref
);
107 static inline void hdmi_write(struct hdmi
*hdmi
, u32 reg
, u32 data
)
109 msm_writel(data
, hdmi
->mmio
+ reg
);
112 static inline u32
hdmi_read(struct hdmi
*hdmi
, u32 reg
)
114 return msm_readl(hdmi
->mmio
+ reg
);
117 static inline struct hdmi
* hdmi_reference(struct hdmi
*hdmi
)
119 kref_get(&hdmi
->refcount
);
123 static inline void hdmi_unreference(struct hdmi
*hdmi
)
125 kref_put(&hdmi
->refcount
, hdmi_destroy
);
129 * The phy appears to be different, for example between 8960 and 8x60,
130 * so split the phy related functions out and load the correct one at
134 struct hdmi_phy_funcs
{
135 void (*destroy
)(struct hdmi_phy
*phy
);
136 void (*reset
)(struct hdmi_phy
*phy
);
137 void (*powerup
)(struct hdmi_phy
*phy
, unsigned long int pixclock
);
138 void (*powerdown
)(struct hdmi_phy
*phy
);
142 const struct hdmi_phy_funcs
*funcs
;
145 struct hdmi_phy
*hdmi_phy_8960_init(struct hdmi
*hdmi
);
146 struct hdmi_phy
*hdmi_phy_8x60_init(struct hdmi
*hdmi
);
147 struct hdmi_phy
*hdmi_phy_8x74_init(struct hdmi
*hdmi
);
153 int hdmi_audio_update(struct hdmi
*hdmi
);
154 int hdmi_audio_info_setup(struct hdmi
*hdmi
, bool enabled
,
155 uint32_t num_of_channels
, uint32_t channel_allocation
,
156 uint32_t level_shift
, bool down_mix
);
157 void hdmi_audio_set_sample_rate(struct hdmi
*hdmi
, int rate
);
164 struct drm_bridge
*hdmi_bridge_init(struct hdmi
*hdmi
);
170 void hdmi_connector_irq(struct drm_connector
*connector
);
171 struct drm_connector
*hdmi_connector_init(struct hdmi
*hdmi
);
174 * i2c adapter for ddc:
177 void hdmi_i2c_irq(struct i2c_adapter
*i2c
);
178 void hdmi_i2c_destroy(struct i2c_adapter
*i2c
);
179 struct i2c_adapter
*hdmi_i2c_init(struct hdmi
*hdmi
);
181 #endif /* __HDMI_CONNECTOR_H__ */