[PATCH 3/4] drm/panel: ilitek-ili9881c: add Mingjun MJ070BI30IA2
From: Icenowy Zheng
Date: Fri Oct 30 2026 - 01:45:17 EST
Mingjun MJ070BI30IA2 is a 7" MIPI DSI LCD panel used by Lichee Console
4A, with a initialization sequence matching the pattern of Ilitek
ILI9881C driver chip.
Add it to the driver for ILI9881C-based panels.
Signed-off-by: Icenowy Zheng <zhengxingda@xxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 222 ++++++++++++++++++++++++++
1 file changed, 222 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index c3d5ab67121d9..83148c40e25ca 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -2198,6 +2198,201 @@ static const struct ili9881c_instr waveshare_7inch_a_init[] = {
ILI9881C_COMMAND_INSTR(0x36, 0x00),
};
+static const struct ili9881c_instr mj070bi30ia2_init[] = {
+ ILI9881C_SWITCH_PAGE_INSTR(3),
+ ILI9881C_COMMAND_INSTR(0x01, 0x00),
+ ILI9881C_COMMAND_INSTR(0x02, 0x00),
+ ILI9881C_COMMAND_INSTR(0x03, 0x73),
+ ILI9881C_COMMAND_INSTR(0x04, 0x13),
+ ILI9881C_COMMAND_INSTR(0x05, 0x00),
+ ILI9881C_COMMAND_INSTR(0x06, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x07, 0x05),
+ ILI9881C_COMMAND_INSTR(0x11, 0x00),
+ ILI9881C_COMMAND_INSTR(0x09, 0x28),
+ ILI9881C_COMMAND_INSTR(0x0A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0D, 0x28),
+ ILI9881C_COMMAND_INSTR(0x0E, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0F, 0x28),
+ ILI9881C_COMMAND_INSTR(0x10, 0x28),
+ ILI9881C_COMMAND_INSTR(0x11, 0x00),
+ ILI9881C_COMMAND_INSTR(0x12, 0x00),
+ ILI9881C_COMMAND_INSTR(0x13, 0x00),
+ ILI9881C_COMMAND_INSTR(0x14, 0x00),
+ ILI9881C_COMMAND_INSTR(0x15, 0x00),
+ ILI9881C_COMMAND_INSTR(0x16, 0x00),
+ ILI9881C_COMMAND_INSTR(0x17, 0x00),
+ ILI9881C_COMMAND_INSTR(0x18, 0x00),
+ ILI9881C_COMMAND_INSTR(0x19, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1E, 0x40),
+ ILI9881C_COMMAND_INSTR(0x1F, 0x80),
+ ILI9881C_COMMAND_INSTR(0x20, 0x06),
+ ILI9881C_COMMAND_INSTR(0x21, 0x01),
+ ILI9881C_COMMAND_INSTR(0x22, 0x00),
+ ILI9881C_COMMAND_INSTR(0x23, 0x00),
+ ILI9881C_COMMAND_INSTR(0x24, 0x00),
+ ILI9881C_COMMAND_INSTR(0x25, 0x00),
+ ILI9881C_COMMAND_INSTR(0x26, 0x00),
+ ILI9881C_COMMAND_INSTR(0x27, 0x00),
+ ILI9881C_COMMAND_INSTR(0x28, 0x33),
+ ILI9881C_COMMAND_INSTR(0x29, 0x33),
+ ILI9881C_COMMAND_INSTR(0x2A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2C, 0x04),
+ ILI9881C_COMMAND_INSTR(0x2D, 0x0C),
+ ILI9881C_COMMAND_INSTR(0x2E, 0x05),
+ ILI9881C_COMMAND_INSTR(0x2F, 0x05),
+ ILI9881C_COMMAND_INSTR(0x30, 0x00),
+ ILI9881C_COMMAND_INSTR(0x31, 0x00),
+ ILI9881C_COMMAND_INSTR(0x32, 0x31),
+ ILI9881C_COMMAND_INSTR(0x33, 0x00),
+ ILI9881C_COMMAND_INSTR(0x34, 0x00),
+ ILI9881C_COMMAND_INSTR(0x35, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x36, 0x00),
+ ILI9881C_COMMAND_INSTR(0x37, 0x08),
+ ILI9881C_COMMAND_INSTR(0x70, 0x00),
+ ILI9881C_COMMAND_INSTR(0x39, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3E, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3F, 0x00),
+ ILI9881C_COMMAND_INSTR(0x40, 0x00),
+ ILI9881C_COMMAND_INSTR(0x41, 0x00),
+ ILI9881C_COMMAND_INSTR(0x42, 0x00),
+ ILI9881C_COMMAND_INSTR(0x43, 0x08),
+ ILI9881C_COMMAND_INSTR(0x44, 0x00),
+ ILI9881C_COMMAND_INSTR(0xA0, 0x02),
+ ILI9881C_COMMAND_INSTR(0x51, 0x23),
+ ILI9881C_COMMAND_INSTR(0x52, 0x44),
+ ILI9881C_COMMAND_INSTR(0x53, 0x67),
+ ILI9881C_COMMAND_INSTR(0x54, 0x89),
+ ILI9881C_COMMAND_INSTR(0x55, 0xAB),
+ ILI9881C_COMMAND_INSTR(0x56, 0x01),
+ ILI9881C_COMMAND_INSTR(0x57, 0x23),
+ ILI9881C_COMMAND_INSTR(0x58, 0x45),
+ ILI9881C_COMMAND_INSTR(0x59, 0x67),
+ ILI9881C_COMMAND_INSTR(0x5A, 0x89),
+ ILI9881C_COMMAND_INSTR(0x5B, 0xAB),
+ ILI9881C_COMMAND_INSTR(0x5C, 0xCD),
+ ILI9881C_COMMAND_INSTR(0x5D, 0xEF),
+ ILI9881C_COMMAND_INSTR(0x5E, 0x11),
+ ILI9881C_COMMAND_INSTR(0x5F, 0x02),
+ ILI9881C_COMMAND_INSTR(0x60, 0x08),
+ ILI9881C_COMMAND_INSTR(0x61, 0x0E),
+ ILI9881C_COMMAND_INSTR(0x62, 0x0F),
+ ILI9881C_COMMAND_INSTR(0x63, 0x0C),
+ ILI9881C_COMMAND_INSTR(0x64, 0x0D),
+ ILI9881C_COMMAND_INSTR(0x65, 0x17),
+ ILI9881C_COMMAND_INSTR(0x66, 0x01),
+ ILI9881C_COMMAND_INSTR(0x67, 0x01),
+ ILI9881C_COMMAND_INSTR(0x68, 0x02),
+ ILI9881C_COMMAND_INSTR(0x69, 0x02),
+ ILI9881C_COMMAND_INSTR(0x6A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x6B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x6C, 0x02),
+ ILI9881C_COMMAND_INSTR(0x6D, 0x02),
+ ILI9881C_COMMAND_INSTR(0x6E, 0x16),
+ ILI9881C_COMMAND_INSTR(0x6F, 0x16),
+ ILI9881C_COMMAND_INSTR(0x70, 0x06),
+ ILI9881C_COMMAND_INSTR(0x71, 0x06),
+ ILI9881C_COMMAND_INSTR(0x72, 0x07),
+ ILI9881C_COMMAND_INSTR(0x73, 0x07),
+ ILI9881C_COMMAND_INSTR(0x74, 0x02),
+ ILI9881C_COMMAND_INSTR(0x75, 0x02),
+ ILI9881C_COMMAND_INSTR(0x76, 0x08),
+ ILI9881C_COMMAND_INSTR(0x77, 0x0E),
+ ILI9881C_COMMAND_INSTR(0x78, 0x0F),
+ ILI9881C_COMMAND_INSTR(0x79, 0x0C),
+ ILI9881C_COMMAND_INSTR(0x7A, 0x0D),
+ ILI9881C_COMMAND_INSTR(0x7B, 0x17),
+ ILI9881C_COMMAND_INSTR(0x7C, 0x01),
+ ILI9881C_COMMAND_INSTR(0x7D, 0x01),
+ ILI9881C_COMMAND_INSTR(0x7E, 0x02),
+ ILI9881C_COMMAND_INSTR(0x7F, 0x02),
+ ILI9881C_COMMAND_INSTR(0x80, 0x00),
+ ILI9881C_COMMAND_INSTR(0x81, 0x00),
+ ILI9881C_COMMAND_INSTR(0x82, 0x02),
+ ILI9881C_COMMAND_INSTR(0x83, 0x02),
+ ILI9881C_COMMAND_INSTR(0x84, 0x16),
+ ILI9881C_COMMAND_INSTR(0x85, 0x16),
+ ILI9881C_COMMAND_INSTR(0x86, 0x06),
+ ILI9881C_COMMAND_INSTR(0x87, 0x06),
+ ILI9881C_COMMAND_INSTR(0x88, 0x07),
+ ILI9881C_COMMAND_INSTR(0x89, 0x07),
+ ILI9881C_COMMAND_INSTR(0x8A, 0x02),
+
+ ILI9881C_SWITCH_PAGE_INSTR(4),
+ ILI9881C_COMMAND_INSTR(0x6E, 0x1A),
+ ILI9881C_COMMAND_INSTR(0x6F, 0x37),
+ ILI9881C_COMMAND_INSTR(0x3A, 0xA4),
+ ILI9881C_COMMAND_INSTR(0x8D, 0x1F),
+ ILI9881C_COMMAND_INSTR(0x87, 0xBA),
+ ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
+ ILI9881C_COMMAND_INSTR(0x88, 0x0B),
+ ILI9881C_COMMAND_INSTR(0x38, 0x01),
+ ILI9881C_COMMAND_INSTR(0x39, 0x00),
+ ILI9881C_COMMAND_INSTR(0xB5, 0x02),
+ ILI9881C_COMMAND_INSTR(0x31, 0x25),
+ ILI9881C_COMMAND_INSTR(0x3B, 0x98),
+
+ ILI9881C_SWITCH_PAGE_INSTR(1),
+ ILI9881C_COMMAND_INSTR(0x22, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x31, 0x00),
+ ILI9881C_COMMAND_INSTR(0xA6, 0xA6),
+ ILI9881C_COMMAND_INSTR(0x55, 0x3D),
+ ILI9881C_COMMAND_INSTR(0x50, 0x9E),
+ ILI9881C_COMMAND_INSTR(0x51, 0x99),
+ ILI9881C_COMMAND_INSTR(0x60, 0x06),
+ ILI9881C_COMMAND_INSTR(0x62, 0x20),
+ ILI9881C_COMMAND_INSTR(0xA0, 0x00),
+ ILI9881C_COMMAND_INSTR(0xA1, 0x17),
+ ILI9881C_COMMAND_INSTR(0xA2, 0x26),
+ ILI9881C_COMMAND_INSTR(0xA3, 0x13),
+ ILI9881C_COMMAND_INSTR(0xA4, 0x16),
+ ILI9881C_COMMAND_INSTR(0xA5, 0x29),
+ ILI9881C_COMMAND_INSTR(0xA6, 0x1E),
+ ILI9881C_COMMAND_INSTR(0xA7, 0x1F),
+ ILI9881C_COMMAND_INSTR(0xA8, 0x8B),
+ ILI9881C_COMMAND_INSTR(0xA9, 0x1D),
+ ILI9881C_COMMAND_INSTR(0xAA, 0x2A),
+ ILI9881C_COMMAND_INSTR(0xAB, 0x7B),
+ ILI9881C_COMMAND_INSTR(0xAC, 0x1A),
+ ILI9881C_COMMAND_INSTR(0xAD, 0x19),
+ ILI9881C_COMMAND_INSTR(0xAE, 0x4E),
+ ILI9881C_COMMAND_INSTR(0xAF, 0x24),
+ ILI9881C_COMMAND_INSTR(0xB0, 0x29),
+ ILI9881C_COMMAND_INSTR(0xB1, 0x4F),
+ ILI9881C_COMMAND_INSTR(0xB2, 0x5C),
+ ILI9881C_COMMAND_INSTR(0xB3, 0x3E),
+ ILI9881C_COMMAND_INSTR(0xC0, 0x00),
+ ILI9881C_COMMAND_INSTR(0xC1, 0x17),
+ ILI9881C_COMMAND_INSTR(0xC2, 0x26),
+ ILI9881C_COMMAND_INSTR(0xC3, 0x13),
+ ILI9881C_COMMAND_INSTR(0xC4, 0x16),
+ ILI9881C_COMMAND_INSTR(0xC5, 0x29),
+ ILI9881C_COMMAND_INSTR(0xC6, 0x1E),
+ ILI9881C_COMMAND_INSTR(0xC7, 0x1F),
+ ILI9881C_COMMAND_INSTR(0xC8, 0x8B),
+ ILI9881C_COMMAND_INSTR(0xC9, 0x1D),
+ ILI9881C_COMMAND_INSTR(0xCA, 0x2A),
+ ILI9881C_COMMAND_INSTR(0xCB, 0x7B),
+ ILI9881C_COMMAND_INSTR(0xCC, 0x1A),
+ ILI9881C_COMMAND_INSTR(0xCD, 0x19),
+ ILI9881C_COMMAND_INSTR(0xCE, 0x4E),
+ ILI9881C_COMMAND_INSTR(0xCF, 0x24),
+ ILI9881C_COMMAND_INSTR(0xD0, 0x29),
+ ILI9881C_COMMAND_INSTR(0xD1, 0x4D),
+ ILI9881C_COMMAND_INSTR(0xD2, 0x5C),
+ ILI9881C_COMMAND_INSTR(0xD3, 0x3E),
+};
+
static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
{
return container_of(panel, struct ili9881c, panel);
@@ -2493,6 +2688,23 @@ static const struct drm_display_mode waveshare_7inch_a_mode = {
.height_mm = 154,
};
+static const struct drm_display_mode mj070bi30ia2_mode = {
+ .clock = 75750,
+
+ .hdisplay = 800,
+ .hsync_start = 800 + 48,
+ .hsync_end = 800 + 48 + 32,
+ .htotal = 800 + 48 + 32 + 80,
+
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 3,
+ .vsync_end = 1280 + 3 + 10,
+ .vtotal = 1280 + 3 + 10 + 24,
+
+ .width_mm = 94,
+ .height_mm = 150,
+};
+
static int ili9881c_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
@@ -2704,6 +2916,15 @@ static const struct ili9881c_desc waveshare_7inch_a_desc = {
.lanes = 2,
};
+static const struct ili9881c_desc mj070bi30ia2_desc = {
+ .init = mj070bi30ia2_init,
+ .init_length = ARRAY_SIZE(mj070bi30ia2_init),
+ .mode = &mj070bi30ia2_mode,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_LPM,
+ .lanes = 4,
+};
+
static const struct of_device_id ili9881c_of_match[] = {
{ .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
{ .compatible = "bestar,bsd1218-a101kl68", .data = &bsd1218_a101kl68_desc },
@@ -2714,6 +2935,7 @@ static const struct of_device_id ili9881c_of_match[] = {
{ .compatible = "wanchanglong,w552946aba", .data = &w552946aba_desc },
{ .compatible = "waveshare,7.0-dsi-touch-a", .data = &waveshare_7inch_a_desc },
{ .compatible = "ampire,am8001280g", .data = &am8001280g_desc },
+ { .compatible = "mingjun,mj070bi30ia2", .data = &mj070bi30ia2_desc },
{ .compatible = "raspberrypi,dsi-5inch", &rpi_5inch_desc },
{ .compatible = "raspberrypi,dsi-7inch", &rpi_7inch_desc },
{ }
--
2.56.0