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
 24struct csiphy_lane {
 25	u8 pos;
 26	u8 pol;
 27};
 28
 29struct csiphy_lanes_cfg {
 30	int num_data;
 31	struct csiphy_lane *data;
 32	struct csiphy_lane clk;
 33};
 34
 35struct csiphy_csi2_cfg {
 36	struct csiphy_lanes_cfg lane_cfg;
 37};
 38
 39struct csiphy_config {
 40	u8 combo_mode;
 41	u8 csid_id;
 42	struct csiphy_csi2_cfg *csi2;
 43};
 44
 45struct csiphy_device;
 46
 47struct 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
 66struct 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
 86struct camss_subdev_resources;
 87
 88int msm_csiphy_subdev_init(struct camss *camss,
 89			   struct csiphy_device *csiphy,
 90			   const struct camss_subdev_resources *res, u8 id);
 91
 92int msm_csiphy_register_entity(struct csiphy_device *csiphy,
 93			       struct v4l2_device *v4l2_dev);
 94
 95void msm_csiphy_unregister_entity(struct csiphy_device *csiphy);
 96
 97extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0;
 98extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0;
 99
100#endif /* QC_MSM_CAMSS_CSIPHY_H */