drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
Extension
.c
Size
19880 bytes
Lines
518
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 truly_nt35521 {
	struct drm_panel panel;
	struct mipi_dsi_device *dsi;
	struct regulator_bulk_data supplies[2];
	struct gpio_desc *reset_gpio;
	struct gpio_desc *blen_gpio;
};

#define NT35521_DCS_SWITCH_PAGE	0xf0

#define nt35521_switch_page(dsi_ctx, page) \
	mipi_dsi_dcs_write_seq_multi(dsi_ctx, NT35521_DCS_SWITCH_PAGE, \
				     0x55, 0xaa, 0x52, 0x08, (page))

static inline
struct truly_nt35521 *to_truly_nt35521(struct drm_panel *panel)
{
	return container_of(panel, struct truly_nt35521, panel);
}

static void truly_nt35521_reset(struct truly_nt35521 *ctx)
{
	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	usleep_range(1000, 2000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	usleep_range(10000, 11000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	msleep(150);
}

static int truly_nt35521_on(struct truly_nt35521 *ctx)
{
	struct mipi_dsi_device *dsi = ctx->dsi;
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };

	dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	nt35521_switch_page(&dsi_ctx, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0xaa, 0x55, 0xa5, 0x80);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x11, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf7, 0x20, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x21);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x01, 0xa0, 0x10, 0x08, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8, 0x01, 0x02, 0x0c, 0x02);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x11, 0x11);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x00, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6, 0x02);

	nt35521_switch_page(&dsi_ctx, 0x01);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x09, 0x09);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x09, 0x09);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x8c, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x8c, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xca, 0x00);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc0, 0x04);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbe, 0xb5);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x35, 0x35);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4, 0x25, 0x25);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9, 0x43, 0x43);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba, 0x24, 0x24);

	nt35521_switch_page(&dsi_ctx, 0x02);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xee, 0x03);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0,
					 0x00, 0xb2, 0x00, 0xb3, 0x00, 0xb6, 0x00, 0xc3,
					 0x00, 0xce, 0x00, 0xe1, 0x00, 0xf3, 0x01, 0x11);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1,
					 0x01, 0x2e, 0x01, 0x5c, 0x01, 0x82, 0x01, 0xc3,
					 0x01, 0xfe, 0x02, 0x00, 0x02, 0x37, 0x02, 0x77);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb2,
					 0x02, 0xa1, 0x02, 0xd7, 0x02, 0xfe, 0x03, 0x2c,
					 0x03, 0x4b, 0x03, 0x63, 0x03, 0x8f, 0x03, 0x90);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x03, 0x96, 0x03, 0x98);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4,
					 0x00, 0x81, 0x00, 0x8b, 0x00, 0x9c, 0x00, 0xa9,
					 0x00, 0xb5, 0x00, 0xcb, 0x00, 0xdf, 0x01, 0x02);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb5,
					 0x01, 0x1f, 0x01, 0x51, 0x01, 0x7a, 0x01, 0xbf,
					 0x01, 0xfa, 0x01, 0xfc, 0x02, 0x34, 0x02, 0x76);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6,
					 0x02, 0x9f, 0x02, 0xd7, 0x02, 0xfc, 0x03, 0x2c,
					 0x03, 0x4a, 0x03, 0x63, 0x03, 0x8f, 0x03, 0xa2);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb7, 0x03, 0xb8, 0x03, 0xba);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8,
					 0x00, 0x01, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x2a,
					 0x00, 0x41, 0x00, 0x67, 0x00, 0x87, 0x00, 0xb9);
	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9,
					 0x00, 0xe2, 0x01, 0x22, 0x01, 0x54, 0x01, 0xa3,
					 0x01, 0xe6, 0x01, 0xe7, 0x02, 0x24, 0x02, 0x67);

Annotation

Implementation Notes