1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * camss-csiphy.h
4  *
5  * Qualcomm MSM Camera Subsystem - CSIPHY Module
6  *
7  * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
8  * Copyright (C) 2016-2018 Linaro Ltd.
9  */
10 #ifndef QC_MSM_CAMSS_CSIPHY_H
11 #define QC_MSM_CAMSS_CSIPHY_H
12 
13 #include <linux/clk.h>
14 #include <linux/interrupt.h>
15 #include <media/media-entity.h>
16 #include <media/v4l2-device.h>
17 #include <media/v4l2-mediabus.h>
18 #include <media/v4l2-subdev.h>
19 
20 #define MSM_CSIPHY_PAD_SINK 0
21 #define MSM_CSIPHY_PAD_SRC 1
22 #define MSM_CSIPHY_PADS_NUM 2
23 
24 struct csiphy_lane {
25 	u8 pos;
26 	u8 pol;
27 };
28 
29 struct csiphy_lanes_cfg {
30 	int num_data;
31 	struct csiphy_lane *data;
32 	struct csiphy_lane clk;
33 };
34 
35 struct csiphy_csi2_cfg {
36 	struct csiphy_lanes_cfg lane_cfg;
37 };
38 
39 struct csiphy_config {
40 	u8 combo_mode;
41 	u8 csid_id;
42 	struct csiphy_csi2_cfg *csi2;
43 };
44 
45 struct csiphy_device;
46 
47 struct csiphy_hw_ops {
48 	void (*hw_version_read)(struct csiphy_device *csiphy,
49 				struct device *dev);
50 	void (*reset)(struct csiphy_device *csiphy);
51 	void (*lanes_enable)(struct csiphy_device *csiphy,
52 			     struct csiphy_config *cfg,
53 			     u32 pixel_clock, u8 bpp, u8 lane_mask);
54 	void (*lanes_disable)(struct csiphy_device *csiphy,
55 			      struct csiphy_config *cfg);
56 	irqreturn_t (*isr)(int irq, void *dev);
57 };
58 
59 struct csiphy_device {
60 	struct camss *camss;
61 	u8 id;
62 	struct v4l2_subdev subdev;
63 	struct media_pad pads[MSM_CSIPHY_PADS_NUM];
64 	void __iomem *base;
65 	void __iomem *base_clk_mux;
66 	u32 irq;
67 	char irq_name[30];
68 	struct camss_clock *clock;
69 	bool *rate_set;
70 	int nclocks;
71 	u32 timer_clk_rate;
72 	struct csiphy_config cfg;
73 	struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM];
74 	const struct csiphy_hw_ops *ops;
75 	const struct csiphy_format *formats;
76 	unsigned int nformats;
77 };
78 
79 struct resources;
80 
81 int msm_csiphy_subdev_init(struct camss *camss,
82 			   struct csiphy_device *csiphy,
83 			   const struct resources *res, u8 id);
84 
85 int msm_csiphy_register_entity(struct csiphy_device *csiphy,
86 			       struct v4l2_device *v4l2_dev);
87 
88 void msm_csiphy_unregister_entity(struct csiphy_device *csiphy);
89 
90 extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0;
91 extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0;
92 
93 #endif /* QC_MSM_CAMSS_CSIPHY_H */
94