drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c

Source file repositories/reference/linux-study-clean/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c

File Facts

System: Linux kernel
Corpus path: drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
Extension: .c
Size: 49675 bytes
Lines: 1278
Domain: Driver Families
Bucket: drivers/media
Inferred role: Driver Families: implementation source
Status: source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
Touches IRQ or DMA behavior; this matters for the representative real-device path.
Allocates kernel memory; connect allocation flags and lifetime to context constraints.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

camss.h
camss-csiphy.h
linux/delay.h
linux/interrupt.h
linux/io.h

Detected Declarations

struct csiphy_lane_regs
function csiphy_hw_version_read
function csiphy_reset
function csiphy_isr
function csiphy_settle_cnt_calc
function csiphy_gen1_config_lanes
function csiphy_gen2_config_lanes
function csiphy_get_lane_mask
function csiphy_is_gen2
function csiphy_lanes_enable
function csiphy_lanes_disable
function csiphy_init

Annotated Snippet

struct csiphy_lane_regs {
	s32 reg_addr;
	s32 reg_data;
	u32 delay_us;
	u32 csiphy_param_type;
};

/* 5nm 2PH v 1.3.0 2p5Gbps 4 lane DPHY mode */
static const struct
csiphy_lane_regs lane_regs_sa8775p[] = {
	{0x0724, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0728, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0700, 0x80, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x070C, 0xFF, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0738, 0x1F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x072C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0734, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0710, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x071C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0714, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x073C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0704, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0720, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0708, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
	{0x0024, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0000, 0x8D, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0038, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x002C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0034, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0010, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x001C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0014, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x003C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0004, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0020, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0008, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
	{0x0224, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0200, 0x8D, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0238, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x022C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0234, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0210, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x021C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0214, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x023C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0204, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0220, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0208, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
	{0x0424, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0400, 0x8D, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0438, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x042C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0434, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0410, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x041C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0414, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x043C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0404, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0420, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0408, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
	{0x0624, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0600, 0x8D, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0638, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x062C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0634, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0610, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x061C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0614, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x063C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0604, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0620, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0608, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
	{0x005C, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0060, 0xFD, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0064, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x025C, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0260, 0xFD, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0264, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x045C, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0460, 0xFD, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0464, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x065C, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0660, 0xFD, 0x00, CSIPHY_DEFAULT_PARAMS},
	{0x0664, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
};

/* GEN2 1.0 2PH */
static const struct
csiphy_lane_regs lane_regs_sdm845[] = {
	{0x0004, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},

Annotation

Immediate include surface: `camss.h`, `camss-csiphy.h`, `linux/delay.h`, `linux/interrupt.h`, `linux/io.h`.
Detected declarations: `struct csiphy_lane_regs`, `function csiphy_hw_version_read`, `function csiphy_reset`, `function csiphy_isr`, `function csiphy_settle_cnt_calc`, `function csiphy_gen1_config_lanes`, `function csiphy_gen2_config_lanes`, `function csiphy_get_lane_mask`, `function csiphy_is_gen2`, `function csiphy_lanes_enable`.
Atlas domain: Driver Families / drivers/media.
Implementation status: source implementation candidate.
IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.