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 /* 49 * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter 50 * @lane_cfg - CSI2 lane configuration 51 * 52 * Return lane mask 53 */ 54 u8 (*get_lane_mask)(struct csiphy_lanes_cfg *lane_cfg); 55 void (*hw_version_read)(struct csiphy_device *csiphy, 56 struct device *dev); 57 void (*reset)(struct csiphy_device *csiphy); 58 void (*lanes_enable)(struct csiphy_device *csiphy, 59 struct csiphy_config *cfg, 60 s64 link_freq, u8 lane_mask); 61 void (*lanes_disable)(struct csiphy_device *csiphy, 62 struct csiphy_config *cfg); 63 irqreturn_t (*isr)(int irq, void *dev); 64 }; 65 66 struct csiphy_device { 67 struct camss *camss; 68 u8 id; 69 struct v4l2_subdev subdev; 70 struct media_pad pads[MSM_CSIPHY_PADS_NUM]; 71 void __iomem *base; 72 void __iomem *base_clk_mux; 73 u32 irq; 74 char irq_name[30]; 75 struct camss_clock *clock; 76 bool *rate_set; 77 int nclocks; 78 u32 timer_clk_rate; 79 struct csiphy_config cfg; 80 struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM]; 81 const struct csiphy_hw_ops *ops; 82 const struct csiphy_format *formats; 83 unsigned int nformats; 84 }; 85 86 struct camss_subdev_resources; 87 88 int msm_csiphy_subdev_init(struct camss *camss, 89 struct csiphy_device *csiphy, 90 const struct camss_subdev_resources *res, u8 id); 91 92 int msm_csiphy_register_entity(struct csiphy_device *csiphy, 93 struct v4l2_device *v4l2_dev); 94 95 void msm_csiphy_unregister_entity(struct csiphy_device *csiphy); 96 97 extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0; 98 extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0; 99 100 #endif /* QC_MSM_CAMSS_CSIPHY_H */ 101