Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 630 insertions, 0 deletions

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
new file mode 100644
index 000000000..d30f0ecb1
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -0,0 +1,630 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Rockchip ISP1 Driver - Common definitions
+ *
+ * Copyright (C) 2019 Collabora, Ltd.
+ *
+ * Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#ifndef _RKISP1_COMMON_H
+#define _RKISP1_COMMON_H
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/rkisp1-config.h>
+#include <media/media-device.h>
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/videobuf2-v4l2.h>
+
+#include "rkisp1-regs.h"
+
+struct dentry;
+
+/*
+ * flags on the 'direction' field in struct rkisp1_mbus_info' that indicate
+ * on which pad the media bus format is supported
+ */
+#define RKISP1_ISP_SD_SRC			BIT(0)
+#define RKISP1_ISP_SD_SINK			BIT(1)
+
+/* min and max values for the widths and heights of the entities */
+#define RKISP1_ISP_MAX_WIDTH			4032
+#define RKISP1_ISP_MAX_HEIGHT			3024
+#define RKISP1_ISP_MIN_WIDTH			32
+#define RKISP1_ISP_MIN_HEIGHT			32
+
+#define RKISP1_RSZ_MP_SRC_MAX_WIDTH		4416
+#define RKISP1_RSZ_MP_SRC_MAX_HEIGHT		3312
+#define RKISP1_RSZ_SP_SRC_MAX_WIDTH		1920
+#define RKISP1_RSZ_SP_SRC_MAX_HEIGHT		1920
+#define RKISP1_RSZ_SRC_MIN_WIDTH		32
+#define RKISP1_RSZ_SRC_MIN_HEIGHT		16
+
+/* the default width and height of all the entities */
+#define RKISP1_DEFAULT_WIDTH			800
+#define RKISP1_DEFAULT_HEIGHT			600
+
+#define RKISP1_DRIVER_NAME			"rkisp1"
+#define RKISP1_BUS_INFO				"platform:" RKISP1_DRIVER_NAME
+
+/* maximum number of clocks */
+#define RKISP1_MAX_BUS_CLK			8
+
+/* a bitmask of the ready stats */
+#define RKISP1_STATS_MEAS_MASK			(RKISP1_CIF_ISP_AWB_DONE |	\
+						 RKISP1_CIF_ISP_AFM_FIN |	\
+						 RKISP1_CIF_ISP_EXP_END |	\
+						 RKISP1_CIF_ISP_HIST_MEASURE_RDY)
+
+/* enum for the resizer pads */
+enum rkisp1_rsz_pad {
+	RKISP1_RSZ_PAD_SINK,
+	RKISP1_RSZ_PAD_SRC,
+	RKISP1_RSZ_PAD_MAX
+};
+
+/* enum for the csi receiver pads */
+enum rkisp1_csi_pad {
+	RKISP1_CSI_PAD_SINK,
+	RKISP1_CSI_PAD_SRC,
+	RKISP1_CSI_PAD_NUM
+};
+
+/* enum for the capture id */
+enum rkisp1_stream_id {
+	RKISP1_MAINPATH,
+	RKISP1_SELFPATH,
+};
+
+/* bayer patterns */
+enum rkisp1_fmt_raw_pat_type {
+	RKISP1_RAW_RGGB = 0,
+	RKISP1_RAW_GRBG,
+	RKISP1_RAW_GBRG,
+	RKISP1_RAW_BGGR,
+};
+
+/* enum for the isp pads */
+enum rkisp1_isp_pad {
+	RKISP1_ISP_PAD_SINK_VIDEO,
+	RKISP1_ISP_PAD_SINK_PARAMS,
+	RKISP1_ISP_PAD_SOURCE_VIDEO,
+	RKISP1_ISP_PAD_SOURCE_STATS,
+	RKISP1_ISP_PAD_MAX
+};
+
+/*
+ * enum rkisp1_feature - ISP features
+ *
+ * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
+ *
+ * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
+ * the driver to implement support for features present in some ISP versions
+ * only.
+ */
+enum rkisp1_feature {
+	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
+};
+
+/*
+ * struct rkisp1_info - Model-specific ISP Information
+ *
+ * @clks: array of ISP clock names
+ * @clk_size: number of entries in the @clks array
+ * @isrs: array of ISP interrupt descriptors
+ * @isr_size: number of entries in the @isrs array
+ * @isp_ver: ISP version
+ * @features: bitmask of rkisp1_feature features implemented by the ISP
+ *
+ * This structure contains information about the ISP specific to a particular
+ * ISP model, version, or integration in a particular SoC.
+ */
+struct rkisp1_info {
+	const char * const *clks;
+	unsigned int clk_size;
+	const struct rkisp1_isr_data *isrs;
+	unsigned int isr_size;
+	enum rkisp1_cif_isp_version isp_ver;
+	unsigned int features;
+};
+
+/*
+ * struct rkisp1_sensor_async - A container for the v4l2_async_subdev to add to the notifier
+ *				of the v4l2-async API
+ *
+ * @asd:		async_subdev variable for the sensor
+ * @index:		index of the sensor (counting sensor found in DT)
+ * @source_ep:		fwnode for the sensor source endpoint
+ * @lanes:		number of lanes
+ * @mbus_type:		type of bus (currently only CSI2 is supported)
+ * @mbus_flags:		media bus (V4L2_MBUS_*) flags
+ * @sd:			a pointer to v4l2_subdev struct of the sensor
+ * @pixel_rate_ctrl:	pixel rate of the sensor, used to initialize the phy
+ * @port:		port number (0: MIPI, 1: Parallel)
+ */
+struct rkisp1_sensor_async {
+	struct v4l2_async_connection asd;
+	unsigned int index;
+	struct fwnode_handle *source_ep;
+	unsigned int lanes;
+	enum v4l2_mbus_type mbus_type;
+	unsigned int mbus_flags;
+	struct v4l2_subdev *sd;
+	struct v4l2_ctrl *pixel_rate_ctrl;
+	unsigned int port;
+};
+
+/*
+ * struct rkisp1_csi - CSI receiver subdev
+ *
+ * @rkisp1: pointer to the rkisp1 device
+ * @dphy: a pointer to the phy
+ * @is_dphy_errctrl_disabled: if dphy errctrl is disabled (avoid endless interrupt)
+ * @sd: v4l2_subdev variable
+ * @pads: media pads
+ * @pad_cfg: configurations for the pads
+ * @sink_fmt: input format
+ * @lock: protects pad_cfg and sink_fmt
+ * @source: source in-use, set when starting streaming
+ */
+struct rkisp1_csi {
+	struct rkisp1_device *rkisp1;
+	struct phy *dphy;
+	bool is_dphy_errctrl_disabled;
+	struct v4l2_subdev sd;
+	struct media_pad pads[RKISP1_CSI_PAD_NUM];
+	struct v4l2_subdev_pad_config pad_cfg[RKISP1_CSI_PAD_NUM];
+	const struct rkisp1_mbus_info *sink_fmt;
+	struct mutex lock;
+	struct v4l2_subdev *source;
+};
+
+/*
+ * struct rkisp1_isp - ISP subdev entity
+ *
+ * @sd:				v4l2_subdev variable
+ * @rkisp1:			pointer to rkisp1_device
+ * @pads:			media pads
+ * @pad_cfg:			pads configurations
+ * @sink_fmt:			input format
+ * @src_fmt:			output format
+ * @ops_lock:			ops serialization
+ * @frame_sequence:		used to synchronize frame_id between video devices.
+ */
+struct rkisp1_isp {
+	struct v4l2_subdev sd;
+	struct rkisp1_device *rkisp1;
+	struct media_pad pads[RKISP1_ISP_PAD_MAX];
+	struct v4l2_subdev_pad_config pad_cfg[RKISP1_ISP_PAD_MAX];
+	const struct rkisp1_mbus_info *sink_fmt;
+	const struct rkisp1_mbus_info *src_fmt;
+	struct mutex ops_lock; /* serialize the subdevice ops */
+	__u32 frame_sequence;
+};
+
+/*
+ * struct rkisp1_vdev_node - Container for the video nodes: params, stats, mainpath, selfpath
+ *
+ * @buf_queue:	queue of buffers
+ * @vlock:	lock of the video node
+ * @vdev:	video node
+ * @pad:	media pad
+ */
+struct rkisp1_vdev_node {
+	struct vb2_queue buf_queue;
+	struct mutex vlock; /* ioctl serialization mutex */
+	struct video_device vdev;
+	struct media_pad pad;
+};
+
+/*
+ * struct rkisp1_buffer - A container for the vb2 buffers used by the video devices:
+ *			  params, stats, mainpath, selfpath
+ *
+ * @vb:		vb2 buffer
+ * @queue:	entry of the buffer in the queue
+ * @buff_addr:	dma addresses of each plane, used only by the capture devices: selfpath, mainpath
+ */
+struct rkisp1_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head queue;
+	u32 buff_addr[VIDEO_MAX_PLANES];
+};
+
+/*
+ * struct rkisp1_dummy_buffer - A buffer to write the next frame to in case
+ *				there are no vb2 buffers available.
+ *
+ * @vaddr:	return value of call to dma_alloc_attrs.
+ * @dma_addr:	dma address of the buffer.
+ * @size:	size of the buffer.
+ */
+struct rkisp1_dummy_buffer {
+	void *vaddr;
+	dma_addr_t dma_addr;
+	u32 size;
+};
+
+struct rkisp1_device;
+
+/*
+ * struct rkisp1_capture - ISP capture video device
+ *
+ * @vnode:	  video node
+ * @rkisp1:	  pointer to rkisp1_device
+ * @id:		  id of the capture, one of RKISP1_SELFPATH, RKISP1_MAINPATH
+ * @ops:	  list of callbacks to configure the capture device.
+ * @config:	  a pointer to the list of registers to configure the capture format.
+ * @is_streaming: device is streaming
+ * @is_stopping:  stop_streaming callback was called and the device is in the process of
+ *		  stopping the streaming.
+ * @done:	  when stop_streaming callback is called, the device waits for the next irq
+ *		  handler to stop the streaming by waiting on the 'done' wait queue.
+ *		  If the irq handler is not called, the stream is stopped by the callback
+ *		  after timeout.
+ * @sp_y_stride:  the selfpath allows to configure a y stride that is longer than the image width.
+ * @buf.lock:	  lock to protect buf.queue
+ * @buf.queue:	  queued buffer list
+ * @buf.dummy:	  dummy space to store dropped data
+ *
+ * rkisp1 uses shadow registers, so it needs two buffers at a time
+ * @buf.curr:	  the buffer used for current frame
+ * @buf.next:	  the buffer used for next frame
+ * @pix.cfg:	  pixel configuration
+ * @pix.info:	  a pointer to the v4l2_format_info of the pixel format
+ * @pix.fmt:	  buffer format
+ */
+struct rkisp1_capture {
+	struct rkisp1_vdev_node vnode;
+	struct rkisp1_device *rkisp1;
+	enum rkisp1_stream_id id;
+	const struct rkisp1_capture_ops *ops;
+	const struct rkisp1_capture_config *config;
+	bool is_streaming;
+	bool is_stopping;
+	wait_queue_head_t done;
+	unsigned int sp_y_stride;
+	struct {
+		/* protects queue, curr and next */
+		spinlock_t lock;
+		struct list_head queue;
+		struct rkisp1_dummy_buffer dummy;
+		struct rkisp1_buffer *curr;
+		struct rkisp1_buffer *next;
+	} buf;
+	struct {
+		const struct rkisp1_capture_fmt_cfg *cfg;
+		const struct v4l2_format_info *info;
+		struct v4l2_pix_format_mplane fmt;
+	} pix;
+};
+
+struct rkisp1_stats;
+struct rkisp1_stats_ops {
+	void (*get_awb_meas)(struct rkisp1_stats *stats,
+			     struct rkisp1_stat_buffer *pbuf);
+	void (*get_aec_meas)(struct rkisp1_stats *stats,
+			     struct rkisp1_stat_buffer *pbuf);
+	void (*get_hst_meas)(struct rkisp1_stats *stats,
+			     struct rkisp1_stat_buffer *pbuf);
+};
+
+/*
+ * struct rkisp1_stats - ISP Statistics device
+ *
+ * @vnode:	  video node
+ * @rkisp1:	  pointer to the rkisp1 device
+ * @lock:	  locks the buffer list 'stat'
+ * @stat:	  queue of rkisp1_buffer
+ * @vdev_fmt:	  v4l2_format of the metadata format
+ */
+struct rkisp1_stats {
+	struct rkisp1_vdev_node vnode;
+	struct rkisp1_device *rkisp1;
+	const struct rkisp1_stats_ops *ops;
+
+	spinlock_t lock; /* locks the buffers list 'stats' */
+	struct list_head stat;
+	struct v4l2_format vdev_fmt;
+};
+
+struct rkisp1_params;
+struct rkisp1_params_ops {
+	void (*lsc_matrix_config)(struct rkisp1_params *params,
+				  const struct rkisp1_cif_isp_lsc_config *pconfig);
+	void (*goc_config)(struct rkisp1_params *params,
+			   const struct rkisp1_cif_isp_goc_config *arg);
+	void (*awb_meas_config)(struct rkisp1_params *params,
+				const struct rkisp1_cif_isp_awb_meas_config *arg);
+	void (*awb_meas_enable)(struct rkisp1_params *params,
+				const struct rkisp1_cif_isp_awb_meas_config *arg,
+				bool en);
+	void (*awb_gain_config)(struct rkisp1_params *params,
+				const struct rkisp1_cif_isp_awb_gain_config *arg);
+	void (*aec_config)(struct rkisp1_params *params,
+			   const struct rkisp1_cif_isp_aec_config *arg);
+	void (*hst_config)(struct rkisp1_params *params,
+			   const struct rkisp1_cif_isp_hst_config *arg);
+	void (*hst_enable)(struct rkisp1_params *params,
+			   const struct rkisp1_cif_isp_hst_config *arg, bool en);
+	void (*afm_config)(struct rkisp1_params *params,
+			   const struct rkisp1_cif_isp_afc_config *arg);
+};
+
+/*
+ * struct rkisp1_params - ISP input parameters device
+ *
+ * @vnode:		video node
+ * @rkisp1:		pointer to the rkisp1 device
+ * @ops:		pointer to the variant-specific operations
+ * @config_lock:	locks the buffer list 'params'
+ * @params:		queue of rkisp1_buffer
+ * @vdev_fmt:		v4l2_format of the metadata format
+ * @quantization:	the quantization configured on the isp's src pad
+ * @raw_type:		the bayer pattern on the isp video sink pad
+ */
+struct rkisp1_params {
+	struct rkisp1_vdev_node vnode;
+	struct rkisp1_device *rkisp1;
+	const struct rkisp1_params_ops *ops;
+
+	spinlock_t config_lock; /* locks the buffers list 'params' */
+	struct list_head params;
+	struct v4l2_format vdev_fmt;
+
+	enum v4l2_quantization quantization;
+	enum v4l2_ycbcr_encoding ycbcr_encoding;
+	enum rkisp1_fmt_raw_pat_type raw_type;
+};
+
+/*
+ * struct rkisp1_resizer - Resizer subdev
+ *
+ * @sd:	       v4l2_subdev variable
+ * @regs_base: base register address offset
+ * @id:	       id of the resizer, one of RKISP1_SELFPATH, RKISP1_MAINPATH
+ * @rkisp1:    pointer to the rkisp1 device
+ * @pads:      media pads
+ * @pad_cfg:   configurations for the pads
+ * @config:    the set of registers to configure the resizer
+ * @pixel_enc: pixel encoding of the resizer
+ * @ops_lock:  a lock for the subdev ops
+ */
+struct rkisp1_resizer {
+	struct v4l2_subdev sd;
+	u32 regs_base;
+	enum rkisp1_stream_id id;
+	struct rkisp1_device *rkisp1;
+	struct media_pad pads[RKISP1_RSZ_PAD_MAX];
+	struct v4l2_subdev_pad_config pad_cfg[RKISP1_RSZ_PAD_MAX];
+	const struct rkisp1_rsz_config *config;
+	enum v4l2_pixel_encoding pixel_enc;
+	struct mutex ops_lock; /* serialize the subdevice ops */
+};
+
+/*
+ * struct rkisp1_debug - Values to be exposed on debugfs.
+ *			 The parameters are counters of the number of times the
+ *			 event occurred since the driver was loaded.
+ *
+ * @data_loss:			  loss of data occurred within a line, processing failure
+ * @outform_size_error:		  size error is generated in outmux submodule
+ * @img_stabilization_size_error: size error is generated in image stabilization submodule
+ * @inform_size_err:		  size error is generated in inform submodule
+ * @mipi_error:			  mipi error occurred
+ * @stats_error:		  writing to the 'Interrupt clear register' did not clear
+ *				  it in the register 'Masked interrupt status'
+ * @stop_timeout:		  upon stream stop, the capture waits 1 second for the isr to stop
+ *				  the stream. This param is incremented in case of timeout.
+ * @frame_drop:			  a frame was ready but the buffer queue was empty so the frame
+ *				  was not sent to userspace
+ */
+struct rkisp1_debug {
+	struct dentry *debugfs_dir;
+	unsigned long data_loss;
+	unsigned long outform_size_error;
+	unsigned long img_stabilization_size_error;
+	unsigned long inform_size_error;
+	unsigned long irq_delay;
+	unsigned long mipi_error;
+	unsigned long stats_error;
+	unsigned long stop_timeout[2];
+	unsigned long frame_drop[2];
+};
+
+/*
+ * struct rkisp1_device - ISP platform device
+ *
+ * @base_addr:	   base register address
+ * @irq:	   the irq number
+ * @dev:	   a pointer to the struct device
+ * @clk_size:	   number of clocks
+ * @clks:	   array of clocks
+ * @v4l2_dev:	   v4l2_device variable
+ * @media_dev:	   media_device variable
+ * @notifier:	   a notifier to register on the v4l2-async API to be notified on the sensor
+ * @source:        source subdev in-use, set when starting streaming
+ * @csi:	   internal CSI-2 receiver
+ * @isp:	   ISP sub-device
+ * @resizer_devs:  resizer sub-devices
+ * @capture_devs:  capture devices
+ * @stats:	   ISP statistics metadata capture device
+ * @params:	   ISP parameters metadata output device
+ * @pipe:	   media pipeline
+ * @stream_lock:   serializes {start/stop}_streaming callbacks between the capture devices.
+ * @debug:	   debug params to be exposed on debugfs
+ * @info:	   version-specific ISP information
+ */
+struct rkisp1_device {
+	void __iomem *base_addr;
+	struct device *dev;
+	unsigned int clk_size;
+	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];
+	struct v4l2_device v4l2_dev;
+	struct media_device media_dev;
+	struct v4l2_async_notifier notifier;
+	struct v4l2_subdev *source;
+	struct rkisp1_csi csi;
+	struct rkisp1_isp isp;
+	struct rkisp1_resizer resizer_devs[2];
+	struct rkisp1_capture capture_devs[2];
+	struct rkisp1_stats stats;
+	struct rkisp1_params params;
+	struct media_pipeline pipe;
+	struct mutex stream_lock; /* serialize {start/stop}_streaming cb between capture devices */
+	struct rkisp1_debug debug;
+	const struct rkisp1_info *info;
+};
+
+/*
+ * struct rkisp1_mbus_info - ISP media bus info, Translates media bus code to hardware
+ *			     format values
+ *
+ * @mbus_code: media bus code
+ * @pixel_enc: pixel encoding
+ * @mipi_dt:   mipi data type
+ * @yuv_seq:   the order of the Y, Cb, Cr values
+ * @bus_width: bus width
+ * @bayer_pat: bayer pattern
+ * @direction: a bitmask of the flags indicating on which pad the format is supported on
+ */
+struct rkisp1_mbus_info {
+	u32 mbus_code;
+	enum v4l2_pixel_encoding pixel_enc;
+	u32 mipi_dt;
+	u32 yuv_seq;
+	u8 bus_width;
+	enum rkisp1_fmt_raw_pat_type bayer_pat;
+	unsigned int direction;
+};
+
+static inline void
+rkisp1_write(struct rkisp1_device *rkisp1, unsigned int addr, u32 val)
+{
+	writel(val, rkisp1->base_addr + addr);
+}
+
+static inline u32 rkisp1_read(struct rkisp1_device *rkisp1, unsigned int addr)
+{
+	return readl(rkisp1->base_addr + addr);
+}
+
+/*
+ * rkisp1_cap_enum_mbus_codes - A helper function that return the i'th supported mbus code
+ *				of the capture entity. This is used to enumerate the supported
+ *				mbus codes on the source pad of the resizer.
+ *
+ * @cap:  the capture entity
+ * @code: the mbus code, the function reads the code->index and fills the code->code
+ */
+int rkisp1_cap_enum_mbus_codes(struct rkisp1_capture *cap,
+			       struct v4l2_subdev_mbus_code_enum *code);
+
+/*
+ * rkisp1_mbus_info_get_by_index - Retrieve the ith supported mbus info
+ *
+ * @index: index of the mbus info to fetch
+ */
+const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_index(unsigned int index);
+
+/*
+ * rkisp1_sd_adjust_crop_rect - adjust a rectangle to fit into another rectangle.
+ *
+ * @crop:   rectangle to adjust.
+ * @bounds: rectangle used as bounds.
+ */
+void rkisp1_sd_adjust_crop_rect(struct v4l2_rect *crop,
+				const struct v4l2_rect *bounds);
+
+/*
+ * rkisp1_sd_adjust_crop - adjust a rectangle to fit into media bus format
+ *
+ * @crop:   rectangle to adjust.
+ * @bounds: media bus format used as bounds.
+ */
+void rkisp1_sd_adjust_crop(struct v4l2_rect *crop,
+			   const struct v4l2_mbus_framefmt *bounds);
+
+/*
+ * rkisp1_mbus_info_get_by_code - get the isp info of the media bus code
+ *
+ * @mbus_code: the media bus code
+ */
+const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_code(u32 mbus_code);
+
+/*
+ * rkisp1_params_pre_configure - Configure the params before stream start
+ *
+ * @params:	  pointer to rkisp1_params
+ * @bayer_pat:	  the bayer pattern on the isp video sink pad
+ * @quantization: the quantization configured on the isp's src pad
+ * @ycbcr_encoding: the ycbcr_encoding configured on the isp's src pad
+ *
+ * This function is called by the ISP entity just before the ISP gets started.
+ * It applies the initial ISP parameters from the first params buffer, but
+ * skips LSC as it needs to be configured after the ISP is started.
+ */
+void rkisp1_params_pre_configure(struct rkisp1_params *params,
+				 enum rkisp1_fmt_raw_pat_type bayer_pat,
+				 enum v4l2_quantization quantization,
+				 enum v4l2_ycbcr_encoding ycbcr_encoding);
+
+/*
+ * rkisp1_params_post_configure - Configure the params after stream start
+ *
+ * @params:	  pointer to rkisp1_params
+ *
+ * This function is called by the ISP entity just after the ISP gets started.
+ * It applies the initial ISP LSC parameters from the first params buffer.
+ */
+void rkisp1_params_post_configure(struct rkisp1_params *params);
+
+/* rkisp1_params_disable - disable all parameters.
+ *			   This function is called by the isp entity upon stream start
+ *			   when capturing bayer format.
+ *
+ * @params: pointer to rkisp1_params.
+ */
+void rkisp1_params_disable(struct rkisp1_params *params);
+
+/* irq handlers */
+irqreturn_t rkisp1_isp_isr(int irq, void *ctx);
+irqreturn_t rkisp1_csi_isr(int irq, void *ctx);
+irqreturn_t rkisp1_capture_isr(int irq, void *ctx);
+void rkisp1_stats_isr(struct rkisp1_stats *stats, u32 isp_ris);
+void rkisp1_params_isr(struct rkisp1_device *rkisp1);
+
+/* register/unregisters functions of the entities */
+int rkisp1_capture_devs_register(struct rkisp1_device *rkisp1);
+void rkisp1_capture_devs_unregister(struct rkisp1_device *rkisp1);
+
+int rkisp1_isp_register(struct rkisp1_device *rkisp1);
+void rkisp1_isp_unregister(struct rkisp1_device *rkisp1);
+
+int rkisp1_resizer_devs_register(struct rkisp1_device *rkisp1);
+void rkisp1_resizer_devs_unregister(struct rkisp1_device *rkisp1);
+
+int rkisp1_stats_register(struct rkisp1_device *rkisp1);
+void rkisp1_stats_unregister(struct rkisp1_device *rkisp1);
+
+int rkisp1_params_register(struct rkisp1_device *rkisp1);
+void rkisp1_params_unregister(struct rkisp1_device *rkisp1);
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+void rkisp1_debug_init(struct rkisp1_device *rkisp1);
+void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1);
+#else
+static inline void rkisp1_debug_init(struct rkisp1_device *rkisp1)
+{
+}
+static inline void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)
+{
+}
+#endif
+
+#endif /* _RKISP1_COMMON_H */