drivers/gpu/drm/panel/panel-raydium-rm67200.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/panel/panel-raydium-rm67200.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/panel/panel-raydium-rm67200.c
Extension
.c
Size
16699 bytes
Lines
494
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 raydium_rm67200_panel_info {
	struct drm_display_mode mode;
	const struct regulator_bulk_data *regulators;
	int num_regulators;
	void (*panel_setup)(struct mipi_dsi_multi_context *ctx);
};

struct raydium_rm67200 {
	struct drm_panel panel;
	const struct raydium_rm67200_panel_info *panel_info;
	struct mipi_dsi_device *dsi;
	struct gpio_desc *reset_gpio;
	struct regulator_bulk_data *supplies;
	int num_supplies;
};

static inline struct raydium_rm67200 *to_raydium_rm67200(struct drm_panel *panel)
{
	return container_of(panel, struct raydium_rm67200, panel);
}

static void raydium_rm67200_reset(struct raydium_rm67200 *ctx)
{
	if (ctx->reset_gpio) {
		gpiod_set_value_cansleep(ctx->reset_gpio, 0);
		msleep(60);
		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
		msleep(60);
		gpiod_set_value_cansleep(ctx->reset_gpio, 0);
		msleep(60);
	}
}

static void raydium_rm67200_write(struct mipi_dsi_multi_context *ctx,
				  u8 arg1, u8 arg2)
{
	u8 d[] = { arg1, arg2 };

	mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d));
}

static void w552793baa_setup(struct mipi_dsi_multi_context *ctx)
{
	raydium_rm67200_write(ctx, 0xfe, 0x21);
	raydium_rm67200_write(ctx, 0x04, 0x00);
	raydium_rm67200_write(ctx, 0x00, 0x64);
	raydium_rm67200_write(ctx, 0x2a, 0x00);
	raydium_rm67200_write(ctx, 0x26, 0x64);
	raydium_rm67200_write(ctx, 0x54, 0x00);
	raydium_rm67200_write(ctx, 0x50, 0x64);
	raydium_rm67200_write(ctx, 0x7b, 0x00);
	raydium_rm67200_write(ctx, 0x77, 0x64);
	raydium_rm67200_write(ctx, 0xa2, 0x00);
	raydium_rm67200_write(ctx, 0x9d, 0x64);
	raydium_rm67200_write(ctx, 0xc9, 0x00);
	raydium_rm67200_write(ctx, 0xc5, 0x64);
	raydium_rm67200_write(ctx, 0x01, 0x71);
	raydium_rm67200_write(ctx, 0x27, 0x71);
	raydium_rm67200_write(ctx, 0x51, 0x71);
	raydium_rm67200_write(ctx, 0x78, 0x71);
	raydium_rm67200_write(ctx, 0x9e, 0x71);
	raydium_rm67200_write(ctx, 0xc6, 0x71);
	raydium_rm67200_write(ctx, 0x02, 0x89);
	raydium_rm67200_write(ctx, 0x28, 0x89);
	raydium_rm67200_write(ctx, 0x52, 0x89);
	raydium_rm67200_write(ctx, 0x79, 0x89);
	raydium_rm67200_write(ctx, 0x9f, 0x89);
	raydium_rm67200_write(ctx, 0xc7, 0x89);
	raydium_rm67200_write(ctx, 0x03, 0x9e);
	raydium_rm67200_write(ctx, 0x29, 0x9e);
	raydium_rm67200_write(ctx, 0x53, 0x9e);
	raydium_rm67200_write(ctx, 0x7a, 0x9e);
	raydium_rm67200_write(ctx, 0xa0, 0x9e);
	raydium_rm67200_write(ctx, 0xc8, 0x9e);
	raydium_rm67200_write(ctx, 0x09, 0x00);
	raydium_rm67200_write(ctx, 0x05, 0xb0);
	raydium_rm67200_write(ctx, 0x31, 0x00);
	raydium_rm67200_write(ctx, 0x2b, 0xb0);
	raydium_rm67200_write(ctx, 0x5a, 0x00);
	raydium_rm67200_write(ctx, 0x55, 0xb0);
	raydium_rm67200_write(ctx, 0x80, 0x00);
	raydium_rm67200_write(ctx, 0x7c, 0xb0);
	raydium_rm67200_write(ctx, 0xa7, 0x00);
	raydium_rm67200_write(ctx, 0xa3, 0xb0);
	raydium_rm67200_write(ctx, 0xce, 0x00);
	raydium_rm67200_write(ctx, 0xca, 0xb0);
	raydium_rm67200_write(ctx, 0x06, 0xc0);
	raydium_rm67200_write(ctx, 0x2d, 0xc0);
	raydium_rm67200_write(ctx, 0x56, 0xc0);
	raydium_rm67200_write(ctx, 0x7d, 0xc0);

Annotation

Implementation Notes