drivers/gpu/drm/panel/panel-visionox-r66451.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/panel/panel-visionox-r66451.c

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/panel/panel-visionox-r66451.c
Extension: .c
Size: 10728 bytes
Lines: 350
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.
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/backlight.h
linux/delay.h
linux/gpio/consumer.h
linux/module.h
linux/of.h
linux/regulator/consumer.h
drm/drm_mipi_dsi.h
drm/drm_probe_helper.h
drm/drm_modes.h
drm/drm_panel.h
drm/display/drm_dsc.h
drm/display/drm_dsc_helper.h
video/mipi_display.h

Detected Declarations

struct visionox_r66451
function visionox_r66451_reset
function visionox_r66451_on
function visionox_r66451_off
function visionox_r66451_prepare
function visionox_r66451_unprepare
function visionox_r66451_enable
function visionox_r66451_disable
function visionox_r66451_get_modes
function visionox_r66451_bl_update_status
function visionox_r66451_create_backlight
function visionox_r66451_probe
function visionox_r66451_remove

Annotated Snippet

struct visionox_r66451 {
	struct drm_panel panel;
	struct mipi_dsi_device *dsi;
	struct gpio_desc *reset_gpio;
	struct regulator_bulk_data supplies[2];
};

static inline struct visionox_r66451 *to_visionox_r66451(struct drm_panel *panel)
{
	return container_of(panel, struct visionox_r66451, panel);
}

static void visionox_r66451_reset(struct visionox_r66451 *ctx)
{
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	usleep_range(10000, 10100);
	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	usleep_range(10000, 10100);
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	usleep_range(10000, 10100);
}

static int visionox_r66451_on(struct visionox_r66451 *ctx)
{
	struct mipi_dsi_device *dsi = ctx->dsi;
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };

	dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2,
				     0x09, 0x24, 0x0c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00,
				     0x09, 0x3c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd7,
				     0x00, 0xb9, 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,
				     0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,
				     0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x80);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xde,
				     0x40, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18,
				     0x10, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x02, 0x00, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x04);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe8, 0x00, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe4, 0x00, 0x08);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4,
				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				     0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x32);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcf,
				     0x64, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
				     0x00, 0x0b, 0x77, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
				     0x02, 0x02, 0x02, 0x02, 0x02, 0x03);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd3,
				     0x45, 0x00, 0x00, 0x01, 0x13, 0x15, 0x00, 0x15, 0x07,
				     0x0f, 0x77, 0x77, 0x77, 0x37, 0xb2, 0x11, 0x00, 0xa0,
				     0x3c, 0x9c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd7,
				     0x00, 0xb9, 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,
				     0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,
				     0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd8,
				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				     0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a,
				     0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				     0x00, 0x0a, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a,
				     0x00, 0x32, 0x00, 0x0a, 0x00, 0x22);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xdf,
				     0x50, 0x42, 0x58, 0x81, 0x2d, 0x00, 0x00, 0x00, 0x00,
				     0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				     0x00, 0x00, 0x01, 0x0f, 0xff, 0xd4, 0x0e, 0x00, 0x00,
				     0x00, 0x00, 0x00, 0x00, 0x0f, 0x53, 0xf1, 0x00, 0x00,
				     0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf7, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x80);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe4, 0x34, 0xb4, 0x00, 0x00, 0x00, 0x39,
				     0x04, 0x09, 0x34);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x04);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xdf, 0x50, 0x40);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x50, 0x00, 0x00, 0x00, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf2, 0x11);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4, 0x00, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf2, 0x19);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xdf, 0x50, 0x42);
	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
	mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0, 1080 - 1);
	mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0, 2340 - 1);

Annotation

Immediate include surface: `linux/backlight.h`, `linux/delay.h`, `linux/gpio/consumer.h`, `linux/module.h`, `linux/of.h`, `linux/regulator/consumer.h`, `drm/drm_mipi_dsi.h`, `drm/drm_probe_helper.h`.
Detected declarations: `struct visionox_r66451`, `function visionox_r66451_reset`, `function visionox_r66451_on`, `function visionox_r66451_off`, `function visionox_r66451_prepare`, `function visionox_r66451_unprepare`, `function visionox_r66451_enable`, `function visionox_r66451_disable`, `function visionox_r66451_get_modes`, `function visionox_r66451_bl_update_status`.
Atlas domain: Driver Families / drivers/gpu.
Implementation status: source implementation candidate.

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.