d079f94c90
Switch all media platform drivers to call v4l2_async_notifier_add_subdev() to add asd's to a notifier, in place of referencing the notifier->subdevs[] array. These drivers also must now call v4l2_async_notifier_init() before adding asd's to their notifiers. There may still be cases where a platform driver maintains a list of asd's that is a duplicate of the notifier asd_list, in which case its possible the platform driver list can be removed, and can reference the notifier asd_list instead. One example of where a duplicate list has been removed in this patch is xilinx-vipp.c. If there are such cases remaining, those drivers should be optimized to remove the duplicate platform driver asd lists. None of the changes to the platform drivers in this patch have been tested. Verify that the async subdevices needed by the platform are bound at load time, and that the driver unloads and reloads correctly with no memory leaking of asd objects. Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/* 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) \
|
|
(to_camss(ptr_module)->dev)
|
|
|
|
#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 {
|
|
PM_DOMAIN_VFE0,
|
|
PM_DOMAIN_VFE1,
|
|
PM_DOMAIN_COUNT
|
|
};
|
|
|
|
enum camss_version {
|
|
CAMSS_8x16,
|
|
CAMSS_8x96,
|
|
};
|
|
|
|
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);
|
|
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 */
|