drivers/gpu/drm/kmb/kmb_dsi.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/kmb/kmb_dsi.c

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/kmb/kmb_dsi.c
Extension: .c
Size: 46362 bytes
Lines: 1567
Domain: Driver Families
Bucket: drivers/gpu
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.
Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
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

linux/clk.h
linux/delay.h
linux/of.h
linux/of_graph.h
linux/mfd/syscon.h
linux/platform_device.h
linux/regmap.h
drm/drm_atomic_helper.h
drm/drm_bridge.h
drm/drm_bridge_connector.h
drm/drm_mipi_dsi.h
drm/drm_simple_kms_helper.h
drm/drm_print.h
drm/drm_probe_helper.h
kmb_dsi.h
kmb_regs.h

Detected Declarations

struct mipi_hs_freq_range_cfg
struct vco_params
function kmb_dsi_clk_disable
function kmb_dsi_host_unregister
function kmb_dsi_host_transfer
function kmb_dsi_host_attach
function kmb_dsi_host_detach
function kmb_dsi_host_bridge_init
function mipi_get_datatype_params
function compute_wc
function compute_unpacked_bytes
function mipi_tx_fg_section_cfg_regs
function mipi_tx_fg_section_cfg
function mipi_tx_fg_cfg_regs
function mipi_tx_fg_cfg
function mipi_tx_multichannel_fifo_cfg
function mipi_tx_ctrl_cfg
function mipi_tx_init_cntrl
function test_mode_send
function set_test_mode_src_osc_freq_target_low_bits
function set_test_mode_src_osc_freq_target_hi_bits
function mipi_tx_get_vco_params
function mipi_tx_pll_setup
function set_slewrate_gt_1500
function set_slewrate_gt_1000
function set_slewrate_lt_1000
function setup_pll
function set_lane_data_rate
function dphy_init_sequence
function dphy_wait_fsm
function wait_init_done
function wait_pll_lock
function mipi_tx_init_dphy
function connect_lcd_to_mipi
function kmb_dsi_mode_set
function kmb_dsi_encoder_init
function kmb_dsi_map_mmio
function kmb_dsi_clk_enable
function kmb_dsi_clk_init

Annotated Snippet

struct  mipi_hs_freq_range_cfg {
	u16 default_bit_rate_mbps;
	u8 hsfreqrange_code;
};

struct vco_params {
	u32 freq;
	u32 range;
	u32 divider;
};

static const struct vco_params vco_table[] = {
	{52, 0x3f, 8},
	{80, 0x39, 8},
	{105, 0x2f, 4},
	{160, 0x29, 4},
	{210, 0x1f, 2},
	{320, 0x19, 2},
	{420, 0x0f, 1},
	{630, 0x09, 1},
	{1100, 0x03, 1},
	{0xffff, 0x01, 1},
};

static const struct mipi_hs_freq_range_cfg
mipi_hs_freq_range[MIPI_DPHY_DEFAULT_BIT_RATES] = {
	{.default_bit_rate_mbps = 80, .hsfreqrange_code = 0x00},
	{.default_bit_rate_mbps = 90, .hsfreqrange_code = 0x10},
	{.default_bit_rate_mbps = 100, .hsfreqrange_code = 0x20},
	{.default_bit_rate_mbps = 110, .hsfreqrange_code = 0x30},
	{.default_bit_rate_mbps = 120, .hsfreqrange_code = 0x01},
	{.default_bit_rate_mbps = 130, .hsfreqrange_code = 0x11},
	{.default_bit_rate_mbps = 140, .hsfreqrange_code = 0x21},
	{.default_bit_rate_mbps = 150, .hsfreqrange_code = 0x31},
	{.default_bit_rate_mbps = 160, .hsfreqrange_code = 0x02},
	{.default_bit_rate_mbps = 170, .hsfreqrange_code = 0x12},
	{.default_bit_rate_mbps = 180, .hsfreqrange_code = 0x22},
	{.default_bit_rate_mbps = 190, .hsfreqrange_code = 0x32},
	{.default_bit_rate_mbps = 205, .hsfreqrange_code = 0x03},
	{.default_bit_rate_mbps = 220, .hsfreqrange_code = 0x13},
	{.default_bit_rate_mbps = 235, .hsfreqrange_code = 0x23},
	{.default_bit_rate_mbps = 250, .hsfreqrange_code = 0x33},
	{.default_bit_rate_mbps = 275, .hsfreqrange_code = 0x04},
	{.default_bit_rate_mbps = 300, .hsfreqrange_code = 0x14},
	{.default_bit_rate_mbps = 325, .hsfreqrange_code = 0x25},
	{.default_bit_rate_mbps = 350, .hsfreqrange_code = 0x35},
	{.default_bit_rate_mbps = 400, .hsfreqrange_code = 0x05},
	{.default_bit_rate_mbps = 450, .hsfreqrange_code = 0x16},
	{.default_bit_rate_mbps = 500, .hsfreqrange_code = 0x26},
	{.default_bit_rate_mbps = 550, .hsfreqrange_code = 0x37},
	{.default_bit_rate_mbps = 600, .hsfreqrange_code = 0x07},
	{.default_bit_rate_mbps = 650, .hsfreqrange_code = 0x18},
	{.default_bit_rate_mbps = 700, .hsfreqrange_code = 0x28},
	{.default_bit_rate_mbps = 750, .hsfreqrange_code = 0x39},
	{.default_bit_rate_mbps = 800, .hsfreqrange_code = 0x09},
	{.default_bit_rate_mbps = 850, .hsfreqrange_code = 0x19},
	{.default_bit_rate_mbps = 900, .hsfreqrange_code = 0x29},
	{.default_bit_rate_mbps = 1000, .hsfreqrange_code = 0x0A},
	{.default_bit_rate_mbps = 1050, .hsfreqrange_code = 0x1A},
	{.default_bit_rate_mbps = 1100, .hsfreqrange_code = 0x2A},
	{.default_bit_rate_mbps = 1150, .hsfreqrange_code = 0x3B},
	{.default_bit_rate_mbps = 1200, .hsfreqrange_code = 0x0B},
	{.default_bit_rate_mbps = 1250, .hsfreqrange_code = 0x1B},
	{.default_bit_rate_mbps = 1300, .hsfreqrange_code = 0x2B},
	{.default_bit_rate_mbps = 1350, .hsfreqrange_code = 0x3C},
	{.default_bit_rate_mbps = 1400, .hsfreqrange_code = 0x0C},
	{.default_bit_rate_mbps = 1450, .hsfreqrange_code = 0x1C},
	{.default_bit_rate_mbps = 1500, .hsfreqrange_code = 0x2C},
	{.default_bit_rate_mbps = 1550, .hsfreqrange_code = 0x3D},
	{.default_bit_rate_mbps = 1600, .hsfreqrange_code = 0x0D},
	{.default_bit_rate_mbps = 1650, .hsfreqrange_code = 0x1D},
	{.default_bit_rate_mbps = 1700, .hsfreqrange_code = 0x2E},
	{.default_bit_rate_mbps = 1750, .hsfreqrange_code = 0x3E},
	{.default_bit_rate_mbps = 1800, .hsfreqrange_code = 0x0E},
	{.default_bit_rate_mbps = 1850, .hsfreqrange_code = 0x1E},
	{.default_bit_rate_mbps = 1900, .hsfreqrange_code = 0x2F},
	{.default_bit_rate_mbps = 1950, .hsfreqrange_code = 0x3F},
	{.default_bit_rate_mbps = 2000, .hsfreqrange_code = 0x0F},
	{.default_bit_rate_mbps = 2050, .hsfreqrange_code = 0x40},
	{.default_bit_rate_mbps = 2100, .hsfreqrange_code = 0x41},
	{.default_bit_rate_mbps = 2150, .hsfreqrange_code = 0x42},
	{.default_bit_rate_mbps = 2200, .hsfreqrange_code = 0x43},
	{.default_bit_rate_mbps = 2250, .hsfreqrange_code = 0x44},
	{.default_bit_rate_mbps = 2300, .hsfreqrange_code = 0x45},
	{.default_bit_rate_mbps = 2350, .hsfreqrange_code = 0x46},
	{.default_bit_rate_mbps = 2400, .hsfreqrange_code = 0x47},
	{.default_bit_rate_mbps = 2450, .hsfreqrange_code = 0x48},
	{.default_bit_rate_mbps = 2500, .hsfreqrange_code = 0x49}
};

Annotation

Immediate include surface: `linux/clk.h`, `linux/delay.h`, `linux/of.h`, `linux/of_graph.h`, `linux/mfd/syscon.h`, `linux/platform_device.h`, `linux/regmap.h`, `drm/drm_atomic_helper.h`.
Detected declarations: `struct mipi_hs_freq_range_cfg`, `struct vco_params`, `function kmb_dsi_clk_disable`, `function kmb_dsi_host_unregister`, `function kmb_dsi_host_transfer`, `function kmb_dsi_host_attach`, `function kmb_dsi_host_detach`, `function kmb_dsi_host_bridge_init`, `function mipi_get_datatype_params`, `function compute_wc`.
Atlas domain: Driver Families / drivers/gpu.
Implementation status: source implementation candidate.
Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.