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/* SPDX-License-Identifier: GPL-2.0 */
* camss.h
* Qualcomm MSM Camera Subsystem - Core
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
* Copyright (C) 2015-2018 Linaro Ltd.
#ifndef QC_MSM_CAMSS_H
#define QC_MSM_CAMSS_H
#include <linux/device.h>
#include <linux/types.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include <media/media-device.h>
#include <media/media-entity.h>
#include "camss-csid.h"
#include "camss-csiphy.h"
#include "camss-ispif.h"
#include "camss-vfe.h"
#define to_camss(ptr_module) \
container_of(ptr_module, struct camss, ptr_module)
#define to_device(ptr_module) \
#define module_pointer(ptr_module, index) \
((const struct ptr_module##_device (*)[]) &(ptr_module[-(index)]))
#define to_camss_index(ptr_module, index) \
container_of(module_pointer(ptr_module, index), \
struct camss, ptr_module)
#define to_device_index(ptr_module, index) \
(to_camss_index(ptr_module, index)->dev)
#define CAMSS_RES_MAX 17
struct resources {
char *regulator[CAMSS_RES_MAX];
char *clock[CAMSS_RES_MAX];
u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX];
char *reg[CAMSS_RES_MAX];
char *interrupt[CAMSS_RES_MAX];
struct resources_ispif {
char *clock[CAMSS_RES_MAX];
char *clock_for_reset[CAMSS_RES_MAX];
char *reg[CAMSS_RES_MAX];
char *interrupt;
enum pm_domain {
enum camss_version {
struct camss {
enum camss_version version;
struct v4l2_device v4l2_dev;
struct v4l2_async_notifier notifier;
struct media_device media_dev;
struct device *dev;
int csiphy_num;
struct csiphy_device *csiphy;
int csid_num;
struct csid_device *csid;
struct ispif_device ispif;
int vfe_num;
struct vfe_device *vfe;
atomic_t ref_count;
struct device *genpd[PM_DOMAIN_COUNT];
struct device_link *genpd_link[PM_DOMAIN_COUNT];
struct camss_camera_interface {
u8 csiphy_id;
struct csiphy_csi2_cfg csi2;
struct camss_async_subdev {
struct v4l2_async_subdev asd; /* must be first */
struct camss_camera_interface interface;
struct camss_clock {
struct clk *clk;
const char *name;
u32 *freq;
u32 nfreqs;
void camss_add_clock_margin(u64 *rate);
int camss_enable_clocks(int nclocks, struct camss_clock *clock,
struct device *dev);
void camss_disable_clocks(int nclocks, struct camss_clock *clock);
struct media_entity *camss_find_sensor(struct media_entity *entity);
int camss_get_pixel_clock(struct media_entity *entity, u32 *pixel_clock);
int camss_pm_domain_on(struct camss *camss, int id);
void camss_pm_domain_off(struct camss *camss, int id);
void camss_delete(struct camss *camss);
#endif /* QC_MSM_CAMSS_H */