drivers/gpu/drm/panel/panel-novatek-nt35532.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/panel/panel-novatek-nt35532.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/panel/panel-novatek-nt35532.c
Extension
.c
Size
37652 bytes
Lines
797
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct novatek_nt35532 {
	struct drm_panel panel;
	struct mipi_dsi_device *dsi;
	struct regulator_bulk_data *supplies;
	struct gpio_desc *reset_gpio;
	const struct nt35532_panel_desc *desc;
};

struct nt35532_panel_desc {
	const struct drm_display_mode *mode;
	int (*on)(struct novatek_nt35532 *ctx);
};

static const struct regulator_bulk_data nt35532_supplies[] = {
	{ .supply = "vci" },
	{ .supply = "vddi" },
	{ .supply = "avee" },
	{ .supply = "avdd" },
};

static inline struct novatek_nt35532 *to_novatek_nt35532(struct drm_panel *panel)
{
	return container_of_const(panel, struct novatek_nt35532, panel);
}

static void nt35532_reset(struct novatek_nt35532 *ctx)
{
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	usleep_range(10000, 11000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	usleep_range(5000, 6000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	usleep_range(10000, 11000);
}

static int rimob_panel_on(struct novatek_nt35532 *ctx)
{
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };

	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6e, 0x80);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x68, 0x13);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfb, 0x01);

	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0x02);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfb, 0x01);

	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0x05);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfb, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd7, 0x31);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd8, 0x7e);

	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfb, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x01, 0x55);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x04, 0x0c);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x05, 0x3a);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x06, 0x50);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x07, 0xd0);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x0a, 0x0f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x0c, 0x06);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x0d, 0x6b);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x0e, 0x6b);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x0f, 0x70);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x10, 0x63);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x11, 0x3c);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x12, 0x5c);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x15, 0x60);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x16, 0x15);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x17, 0x15);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x5b, 0xca);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x5c, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x5d, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x5f, 0x1b);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x60, 0xd5);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x61, 0xf0);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6c, 0xab);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6d, 0x44);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6e, 0x80);

	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0x05);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfb, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x00, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x01, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x02, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x03, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x04, 0x38);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x05, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x06, 0x3f);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x07, 0x19);

Annotation

Implementation Notes