From e2450d32e5fb5f89bf93e52f4ce694ad655cdc66 Mon Sep 17 00:00:00 2001
From: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Date: Fri, 13 Oct 2023 17:18:42 +0800
Subject: drm/panel: ili9882t: Break out as separate driver

The Starry ILI9882t-based panel should never have been part of the boe
tv101wum driver, it is clearly based on the Ilitek ILI9882t display
controller and if you look at the custom command sequences for the
panel these clearly contain the signature Ilitek page switch (0xff)
commands. The hardware has nothing in common with the other panels
supported by this driver.

Break this out into a separate driver and config symbol instead.

If the placement here is out of convenience for using similar code,
we should consider creating a helper library instead.

Co-developed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231013091844.804310-2-yangcong5@huaqin.corp-partner.google.com
---
 drivers/gpu/drm/panel/Kconfig                  |   9 +
 drivers/gpu/drm/panel/Makefile                 |   1 +
 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 371 ------------
 drivers/gpu/drm/panel/panel-ilitek-ili9882t.c  | 759 +++++++++++++++++++++++++
 4 files changed, 769 insertions(+), 371 deletions(-)
 create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9882t.c

(limited to 'drivers')

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ecb22ea326cb..99e14dc212ec 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -203,6 +203,15 @@ config DRM_PANEL_ILITEK_ILI9881C
 	  Say Y if you want to enable support for panels based on the
 	  Ilitek ILI9881c controller.
 
+config DRM_PANEL_ILITEK_ILI9882T
+	tristate "Ilitek ILI9882t-based panels"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y if you want to enable support for panels based on the
+	  Ilitek ILI9882t controller.
+
 config DRM_PANEL_INNOLUX_EJ030NA
         tristate "Innolux EJ030NA 320x480 LCD panel"
         depends on OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index e14ce55a0875..d10c3de51c6d 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o
 obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
 obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9341) += panel-ilitek-ili9341.o
 obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
+obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9882T) += panel-ilitek-ili9882t.o
 obj-$(CONFIG_DRM_PANEL_INNOLUX_EJ030NA) += panel-innolux-ej030na.o
 obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
 obj-$(CONFIG_DRM_PANEL_JADARD_JD9365DA_H3) += panel-jadard-jd9365da-h3.o
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 5ac926281d2c..4f370bc6dca8 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -1370,346 +1370,6 @@ static const struct panel_init_cmd starry_himax83102_j02_init_cmd[] = {
 	{},
 };
 
-static const struct panel_init_cmd starry_ili9882t_init_cmd[] = {
-	_INIT_DELAY_CMD(5),
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x01),
-	_INIT_DCS_CMD(0x00, 0x42),
-	_INIT_DCS_CMD(0x01, 0x11),
-	_INIT_DCS_CMD(0x02, 0x00),
-	_INIT_DCS_CMD(0x03, 0x00),
-
-	_INIT_DCS_CMD(0x04, 0x01),
-	_INIT_DCS_CMD(0x05, 0x11),
-	_INIT_DCS_CMD(0x06, 0x00),
-	_INIT_DCS_CMD(0x07, 0x00),
-
-	_INIT_DCS_CMD(0x08, 0x80),
-	_INIT_DCS_CMD(0x09, 0x81),
-	_INIT_DCS_CMD(0x0A, 0x71),
-	_INIT_DCS_CMD(0x0B, 0x00),
-
-	_INIT_DCS_CMD(0x0C, 0x00),
-	_INIT_DCS_CMD(0x0E, 0x1A),
-
-	_INIT_DCS_CMD(0x24, 0x00),
-	_INIT_DCS_CMD(0x25, 0x00),
-	_INIT_DCS_CMD(0x26, 0x00),
-	_INIT_DCS_CMD(0x27, 0x00),
-
-	_INIT_DCS_CMD(0x2C, 0xD4),
-	_INIT_DCS_CMD(0xB9, 0x40),
-
-	_INIT_DCS_CMD(0xB0, 0x11),
-
-	_INIT_DCS_CMD(0xE6, 0x32),
-	_INIT_DCS_CMD(0xD1, 0x30),
-
-	_INIT_DCS_CMD(0xD6, 0x55),
-
-	_INIT_DCS_CMD(0xD0, 0x01),
-	_INIT_DCS_CMD(0xE3, 0x93),
-	_INIT_DCS_CMD(0xE4, 0x00),
-	_INIT_DCS_CMD(0xE5, 0x80),
-
-	_INIT_DCS_CMD(0x31, 0x07),
-	_INIT_DCS_CMD(0x32, 0x07),
-	_INIT_DCS_CMD(0x33, 0x07),
-	_INIT_DCS_CMD(0x34, 0x07),
-	_INIT_DCS_CMD(0x35, 0x07),
-	_INIT_DCS_CMD(0x36, 0x01),
-	_INIT_DCS_CMD(0x37, 0x00),
-	_INIT_DCS_CMD(0x38, 0x28),
-	_INIT_DCS_CMD(0x39, 0x29),
-	_INIT_DCS_CMD(0x3A, 0x11),
-	_INIT_DCS_CMD(0x3B, 0x13),
-	_INIT_DCS_CMD(0x3C, 0x15),
-	_INIT_DCS_CMD(0x3D, 0x17),
-	_INIT_DCS_CMD(0x3E, 0x09),
-	_INIT_DCS_CMD(0x3F, 0x0D),
-	_INIT_DCS_CMD(0x40, 0x02),
-	_INIT_DCS_CMD(0x41, 0x02),
-	_INIT_DCS_CMD(0x42, 0x02),
-	_INIT_DCS_CMD(0x43, 0x02),
-	_INIT_DCS_CMD(0x44, 0x02),
-	_INIT_DCS_CMD(0x45, 0x02),
-	_INIT_DCS_CMD(0x46, 0x02),
-
-	_INIT_DCS_CMD(0x47, 0x07),
-	_INIT_DCS_CMD(0x48, 0x07),
-	_INIT_DCS_CMD(0x49, 0x07),
-	_INIT_DCS_CMD(0x4A, 0x07),
-	_INIT_DCS_CMD(0x4B, 0x07),
-	_INIT_DCS_CMD(0x4C, 0x01),
-	_INIT_DCS_CMD(0x4D, 0x00),
-	_INIT_DCS_CMD(0x4E, 0x28),
-	_INIT_DCS_CMD(0x4F, 0x29),
-	_INIT_DCS_CMD(0x50, 0x10),
-	_INIT_DCS_CMD(0x51, 0x12),
-	_INIT_DCS_CMD(0x52, 0x14),
-	_INIT_DCS_CMD(0x53, 0x16),
-	_INIT_DCS_CMD(0x54, 0x08),
-	_INIT_DCS_CMD(0x55, 0x0C),
-	_INIT_DCS_CMD(0x56, 0x02),
-	_INIT_DCS_CMD(0x57, 0x02),
-	_INIT_DCS_CMD(0x58, 0x02),
-	_INIT_DCS_CMD(0x59, 0x02),
-	_INIT_DCS_CMD(0x5A, 0x02),
-	_INIT_DCS_CMD(0x5B, 0x02),
-	_INIT_DCS_CMD(0x5C, 0x02),
-
-	_INIT_DCS_CMD(0x61, 0x07),
-	_INIT_DCS_CMD(0x62, 0x07),
-	_INIT_DCS_CMD(0x63, 0x07),
-	_INIT_DCS_CMD(0x64, 0x07),
-	_INIT_DCS_CMD(0x65, 0x07),
-	_INIT_DCS_CMD(0x66, 0x01),
-	_INIT_DCS_CMD(0x67, 0x00),
-	_INIT_DCS_CMD(0x68, 0x28),
-	_INIT_DCS_CMD(0x69, 0x29),
-	_INIT_DCS_CMD(0x6A, 0x16),
-	_INIT_DCS_CMD(0x6B, 0x14),
-	_INIT_DCS_CMD(0x6C, 0x12),
-	_INIT_DCS_CMD(0x6D, 0x10),
-	_INIT_DCS_CMD(0x6E, 0x0C),
-	_INIT_DCS_CMD(0x6F, 0x08),
-	_INIT_DCS_CMD(0x70, 0x02),
-	_INIT_DCS_CMD(0x71, 0x02),
-	_INIT_DCS_CMD(0x72, 0x02),
-	_INIT_DCS_CMD(0x73, 0x02),
-	_INIT_DCS_CMD(0x74, 0x02),
-	_INIT_DCS_CMD(0x75, 0x02),
-	_INIT_DCS_CMD(0x76, 0x02),
-
-	_INIT_DCS_CMD(0x77, 0x07),
-	_INIT_DCS_CMD(0x78, 0x07),
-	_INIT_DCS_CMD(0x79, 0x07),
-	_INIT_DCS_CMD(0x7A, 0x07),
-	_INIT_DCS_CMD(0x7B, 0x07),
-	_INIT_DCS_CMD(0x7C, 0x01),
-	_INIT_DCS_CMD(0x7D, 0x00),
-	_INIT_DCS_CMD(0x7E, 0x28),
-	_INIT_DCS_CMD(0x7F, 0x29),
-	_INIT_DCS_CMD(0x80, 0x17),
-	_INIT_DCS_CMD(0x81, 0x15),
-	_INIT_DCS_CMD(0x82, 0x13),
-	_INIT_DCS_CMD(0x83, 0x11),
-	_INIT_DCS_CMD(0x84, 0x0D),
-	_INIT_DCS_CMD(0x85, 0x09),
-	_INIT_DCS_CMD(0x86, 0x02),
-	_INIT_DCS_CMD(0x87, 0x07),
-	_INIT_DCS_CMD(0x88, 0x07),
-	_INIT_DCS_CMD(0x89, 0x07),
-	_INIT_DCS_CMD(0x8A, 0x07),
-	_INIT_DCS_CMD(0x8B, 0x07),
-	_INIT_DCS_CMD(0x8C, 0x07),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x02),
-	_INIT_DCS_CMD(0x29, 0x3A),
-	_INIT_DCS_CMD(0x2A, 0x3B),
-
-	_INIT_DCS_CMD(0x06, 0x01),
-	_INIT_DCS_CMD(0x07, 0x01),
-	_INIT_DCS_CMD(0x08, 0x0C),
-	_INIT_DCS_CMD(0x09, 0x44),
-
-	_INIT_DCS_CMD(0x3C, 0x0A),
-	_INIT_DCS_CMD(0x39, 0x11),
-	_INIT_DCS_CMD(0x3D, 0x00),
-	_INIT_DCS_CMD(0x3A, 0x0C),
-	_INIT_DCS_CMD(0x3B, 0x44),
-
-	_INIT_DCS_CMD(0x53, 0x1F),
-	_INIT_DCS_CMD(0x5E, 0x40),
-	_INIT_DCS_CMD(0x84, 0x00),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x03),
-	_INIT_DCS_CMD(0x20, 0x01),
-	_INIT_DCS_CMD(0x21, 0x3C),
-	_INIT_DCS_CMD(0x22, 0xFA),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x0A),
-	_INIT_DCS_CMD(0xE0, 0x01),
-	_INIT_DCS_CMD(0xE2, 0x01),
-	_INIT_DCS_CMD(0xE5, 0x91),
-	_INIT_DCS_CMD(0xE6, 0x3C),
-	_INIT_DCS_CMD(0xE7, 0x00),
-	_INIT_DCS_CMD(0xE8, 0xFA),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x12),
-	_INIT_DCS_CMD(0x87, 0x2C),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x05),
-	_INIT_DCS_CMD(0x73, 0xE5),
-	_INIT_DCS_CMD(0x7F, 0x6B),
-	_INIT_DCS_CMD(0x6D, 0xA4),
-	_INIT_DCS_CMD(0x79, 0x54),
-	_INIT_DCS_CMD(0x69, 0x97),
-	_INIT_DCS_CMD(0x6A, 0x97),
-	_INIT_DCS_CMD(0xA5, 0x3F),
-	_INIT_DCS_CMD(0x61, 0xDA),
-	_INIT_DCS_CMD(0xA7, 0xF1),
-	_INIT_DCS_CMD(0x5F, 0x01),
-	_INIT_DCS_CMD(0x62, 0x3F),
-	_INIT_DCS_CMD(0x1D, 0x90),
-	_INIT_DCS_CMD(0x86, 0x87),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x06),
-	_INIT_DCS_CMD(0xC0, 0x80),
-	_INIT_DCS_CMD(0xC1, 0x07),
-	_INIT_DCS_CMD(0xCA, 0x58),
-	_INIT_DCS_CMD(0xCB, 0x02),
-	_INIT_DCS_CMD(0xCE, 0x58),
-	_INIT_DCS_CMD(0xCF, 0x02),
-	_INIT_DCS_CMD(0x67, 0x60),
-	_INIT_DCS_CMD(0x10, 0x00),
-	_INIT_DCS_CMD(0x92, 0x22),
-	_INIT_DCS_CMD(0xD3, 0x08),
-	_INIT_DCS_CMD(0xD6, 0x55),
-	_INIT_DCS_CMD(0xDC, 0x38),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x08),
-	_INIT_DCS_CMD(0xE0, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8),
-	_INIT_DCS_CMD(0xE1, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x04),
-	_INIT_DCS_CMD(0xBA, 0x81),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x0C),
-	_INIT_DCS_CMD(0x00, 0x02),
-	_INIT_DCS_CMD(0x01, 0x00),
-	_INIT_DCS_CMD(0x02, 0x03),
-	_INIT_DCS_CMD(0x03, 0x01),
-	_INIT_DCS_CMD(0x04, 0x03),
-	_INIT_DCS_CMD(0x05, 0x02),
-	_INIT_DCS_CMD(0x06, 0x04),
-	_INIT_DCS_CMD(0x07, 0x03),
-	_INIT_DCS_CMD(0x08, 0x03),
-	_INIT_DCS_CMD(0x09, 0x04),
-	_INIT_DCS_CMD(0x0A, 0x04),
-	_INIT_DCS_CMD(0x0B, 0x05),
-	_INIT_DCS_CMD(0x0C, 0x04),
-	_INIT_DCS_CMD(0x0D, 0x06),
-	_INIT_DCS_CMD(0x0E, 0x05),
-	_INIT_DCS_CMD(0x0F, 0x07),
-	_INIT_DCS_CMD(0x10, 0x04),
-	_INIT_DCS_CMD(0x11, 0x08),
-	_INIT_DCS_CMD(0x12, 0x05),
-	_INIT_DCS_CMD(0x13, 0x09),
-	_INIT_DCS_CMD(0x14, 0x05),
-	_INIT_DCS_CMD(0x15, 0x0A),
-	_INIT_DCS_CMD(0x16, 0x06),
-	_INIT_DCS_CMD(0x17, 0x0B),
-	_INIT_DCS_CMD(0x18, 0x05),
-	_INIT_DCS_CMD(0x19, 0x0C),
-	_INIT_DCS_CMD(0x1A, 0x06),
-	_INIT_DCS_CMD(0x1B, 0x0D),
-	_INIT_DCS_CMD(0x1C, 0x06),
-	_INIT_DCS_CMD(0x1D, 0x0E),
-	_INIT_DCS_CMD(0x1E, 0x07),
-	_INIT_DCS_CMD(0x1F, 0x0F),
-	_INIT_DCS_CMD(0x20, 0x06),
-	_INIT_DCS_CMD(0x21, 0x10),
-	_INIT_DCS_CMD(0x22, 0x07),
-	_INIT_DCS_CMD(0x23, 0x11),
-	_INIT_DCS_CMD(0x24, 0x07),
-	_INIT_DCS_CMD(0x25, 0x12),
-	_INIT_DCS_CMD(0x26, 0x08),
-	_INIT_DCS_CMD(0x27, 0x13),
-	_INIT_DCS_CMD(0x28, 0x07),
-	_INIT_DCS_CMD(0x29, 0x14),
-	_INIT_DCS_CMD(0x2A, 0x08),
-	_INIT_DCS_CMD(0x2B, 0x15),
-	_INIT_DCS_CMD(0x2C, 0x08),
-	_INIT_DCS_CMD(0x2D, 0x16),
-	_INIT_DCS_CMD(0x2E, 0x09),
-	_INIT_DCS_CMD(0x2F, 0x17),
-	_INIT_DCS_CMD(0x30, 0x08),
-	_INIT_DCS_CMD(0x31, 0x18),
-	_INIT_DCS_CMD(0x32, 0x09),
-	_INIT_DCS_CMD(0x33, 0x19),
-	_INIT_DCS_CMD(0x34, 0x09),
-	_INIT_DCS_CMD(0x35, 0x1A),
-	_INIT_DCS_CMD(0x36, 0x0A),
-	_INIT_DCS_CMD(0x37, 0x1B),
-	_INIT_DCS_CMD(0x38, 0x0A),
-	_INIT_DCS_CMD(0x39, 0x1C),
-	_INIT_DCS_CMD(0x3A, 0x0A),
-	_INIT_DCS_CMD(0x3B, 0x1D),
-	_INIT_DCS_CMD(0x3C, 0x0A),
-	_INIT_DCS_CMD(0x3D, 0x1E),
-	_INIT_DCS_CMD(0x3E, 0x0A),
-	_INIT_DCS_CMD(0x3F, 0x1F),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x04),
-	_INIT_DCS_CMD(0xBA, 0x01),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x0E),
-	_INIT_DCS_CMD(0x02, 0x0C),
-	_INIT_DCS_CMD(0x20, 0x10),
-	_INIT_DCS_CMD(0x25, 0x16),
-	_INIT_DCS_CMD(0x26, 0xE0),
-	_INIT_DCS_CMD(0x27, 0x00),
-	_INIT_DCS_CMD(0x29, 0x71),
-	_INIT_DCS_CMD(0x2A, 0x46),
-	_INIT_DCS_CMD(0x2B, 0x1F),
-	_INIT_DCS_CMD(0x2D, 0xC7),
-	_INIT_DCS_CMD(0x31, 0x02),
-	_INIT_DCS_CMD(0x32, 0xDF),
-	_INIT_DCS_CMD(0x33, 0x5A),
-	_INIT_DCS_CMD(0x34, 0xC0),
-	_INIT_DCS_CMD(0x35, 0x5A),
-	_INIT_DCS_CMD(0x36, 0xC0),
-	_INIT_DCS_CMD(0x38, 0x65),
-	_INIT_DCS_CMD(0x80, 0x3E),
-	_INIT_DCS_CMD(0x81, 0xA0),
-	_INIT_DCS_CMD(0xB0, 0x01),
-	_INIT_DCS_CMD(0xB1, 0xCC),
-	_INIT_DCS_CMD(0xC0, 0x12),
-	_INIT_DCS_CMD(0xC2, 0xCC),
-	_INIT_DCS_CMD(0xC3, 0xCC),
-	_INIT_DCS_CMD(0xC4, 0xCC),
-	_INIT_DCS_CMD(0xC5, 0xCC),
-	_INIT_DCS_CMD(0xC6, 0xCC),
-	_INIT_DCS_CMD(0xC7, 0xCC),
-	_INIT_DCS_CMD(0xC8, 0xCC),
-	_INIT_DCS_CMD(0xC9, 0xCC),
-	_INIT_DCS_CMD(0x30, 0x00),
-	_INIT_DCS_CMD(0x00, 0x81),
-	_INIT_DCS_CMD(0x08, 0x02),
-	_INIT_DCS_CMD(0x09, 0x00),
-	_INIT_DCS_CMD(0x07, 0x21),
-	_INIT_DCS_CMD(0x04, 0x10),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x1E),
-	_INIT_DCS_CMD(0x60, 0x00),
-	_INIT_DCS_CMD(0x64, 0x00),
-	_INIT_DCS_CMD(0x6D, 0x00),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x0B),
-	_INIT_DCS_CMD(0xA6, 0x44),
-	_INIT_DCS_CMD(0xA7, 0xB6),
-	_INIT_DCS_CMD(0xA8, 0x03),
-	_INIT_DCS_CMD(0xA9, 0x03),
-	_INIT_DCS_CMD(0xAA, 0x51),
-	_INIT_DCS_CMD(0xAB, 0x51),
-	_INIT_DCS_CMD(0xAC, 0x04),
-	_INIT_DCS_CMD(0xBD, 0x92),
-	_INIT_DCS_CMD(0xBE, 0xA1),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x05),
-	_INIT_DCS_CMD(0x86, 0x87),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x06),
-	_INIT_DCS_CMD(0x92, 0x22),
-
-	_INIT_DCS_CMD(0xFF, 0x98, 0x82, 0x00),
-	_INIT_DCS_CMD(0x11),
-	_INIT_DELAY_CMD(120),
-	_INIT_DCS_CMD(0x29),
-	_INIT_DELAY_CMD(20),
-	{},
-};
-
 static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
 {
 	return container_of(panel, struct boe_panel, base);
@@ -2135,34 +1795,6 @@ static const struct panel_desc starry_himax83102_j02_desc = {
 	.lp11_before_reset = true,
 };
 
-static const struct drm_display_mode starry_ili9882t_default_mode = {
-	.clock = 165280,
-	.hdisplay = 1200,
-	.hsync_start = 1200 + 72,
-	.hsync_end = 1200 + 72 + 30,
-	.htotal = 1200 + 72 + 30 + 72,
-	.vdisplay = 1920,
-	.vsync_start = 1920 + 68,
-	.vsync_end = 1920 + 68 + 2,
-	.vtotal = 1920 + 68 + 2 + 10,
-	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
-};
-
-static const struct panel_desc starry_ili9882t_desc = {
-	.modes = &starry_ili9882t_default_mode,
-	.bpc = 8,
-	.size = {
-		.width_mm = 141,
-		.height_mm = 226,
-	},
-	.lanes = 4,
-	.format = MIPI_DSI_FMT_RGB888,
-	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
-		      MIPI_DSI_MODE_LPM,
-	.init_cmds = starry_ili9882t_init_cmd,
-	.lp11_before_reset = true,
-};
-
 static int boe_panel_get_modes(struct drm_panel *panel,
 			       struct drm_connector *connector)
 {
@@ -2339,9 +1971,6 @@ static const struct of_device_id boe_of_match[] = {
 	{ .compatible = "starry,himax83102-j02",
 	  .data = &starry_himax83102_j02_desc
 	},
-	{ .compatible = "starry,ili9882t",
-	  .data = &starry_ili9882t_desc
-	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, boe_of_match);
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
new file mode 100644
index 000000000000..93a40c2f1483
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
@@ -0,0 +1,759 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Panels based on the Ilitek ILI9882T display controller.
+ */
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+#include <video/mipi_display.h>
+
+/*
+ * Use this descriptor struct to describe different panels using the
+ * Ilitek ILI9882T display controller.
+ */
+struct panel_desc {
+	const struct drm_display_mode *modes;
+	unsigned int bpc;
+
+	/**
+	 * @width_mm: width of the panel's active display area
+	 * @height_mm: height of the panel's active display area
+	 */
+	struct {
+		unsigned int width_mm;
+		unsigned int height_mm;
+	} size;
+
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	const struct panel_init_cmd *init_cmds;
+	unsigned int lanes;
+};
+
+struct ili9882t {
+	struct drm_panel base;
+	struct mipi_dsi_device *dsi;
+
+	const struct panel_desc *desc;
+
+	enum drm_panel_orientation orientation;
+	struct regulator *pp3300;
+	struct regulator *pp1800;
+	struct regulator *avee;
+	struct regulator *avdd;
+	struct gpio_desc *enable_gpio;
+};
+
+enum dsi_cmd_type {
+	INIT_DCS_CMD,
+	DELAY_CMD,
+};
+
+struct panel_init_cmd {
+	enum dsi_cmd_type type;
+	size_t len;
+	const char *data;
+};
+
+#define _INIT_DCS_CMD(...) { \
+	.type = INIT_DCS_CMD, \
+	.len = sizeof((char[]){__VA_ARGS__}), \
+	.data = (char[]){__VA_ARGS__} }
+
+#define _INIT_DELAY_CMD(...) { \
+	.type = DELAY_CMD,\
+	.len = sizeof((char[]){__VA_ARGS__}), \
+	.data = (char[]){__VA_ARGS__} }
+
+/* ILI9882-specific commands, add new commands as you decode them */
+#define ILI9882T_DCS_SWITCH_PAGE	0xFF
+
+#define _INIT_SWITCH_PAGE_CMD(page) \
+	_INIT_DCS_CMD(ILI9882T_DCS_SWITCH_PAGE, 0x98, 0x82, (page))
+
+static const struct panel_init_cmd starry_ili9882t_init_cmd[] = {
+	_INIT_DELAY_CMD(5),
+	_INIT_SWITCH_PAGE_CMD(0x01),
+	_INIT_DCS_CMD(0x00, 0x42),
+	_INIT_DCS_CMD(0x01, 0x11),
+	_INIT_DCS_CMD(0x02, 0x00),
+	_INIT_DCS_CMD(0x03, 0x00),
+
+	_INIT_DCS_CMD(0x04, 0x01),
+	_INIT_DCS_CMD(0x05, 0x11),
+	_INIT_DCS_CMD(0x06, 0x00),
+	_INIT_DCS_CMD(0x07, 0x00),
+
+	_INIT_DCS_CMD(0x08, 0x80),
+	_INIT_DCS_CMD(0x09, 0x81),
+	_INIT_DCS_CMD(0x0A, 0x71),
+	_INIT_DCS_CMD(0x0B, 0x00),
+
+	_INIT_DCS_CMD(0x0C, 0x00),
+	_INIT_DCS_CMD(0x0E, 0x1A),
+
+	_INIT_DCS_CMD(0x24, 0x00),
+	_INIT_DCS_CMD(0x25, 0x00),
+	_INIT_DCS_CMD(0x26, 0x00),
+	_INIT_DCS_CMD(0x27, 0x00),
+
+	_INIT_DCS_CMD(0x2C, 0xD4),
+	_INIT_DCS_CMD(0xB9, 0x40),
+
+	_INIT_DCS_CMD(0xB0, 0x11),
+
+	_INIT_DCS_CMD(0xE6, 0x32),
+	_INIT_DCS_CMD(0xD1, 0x30),
+
+	_INIT_DCS_CMD(0xD6, 0x55),
+
+	_INIT_DCS_CMD(0xD0, 0x01),
+	_INIT_DCS_CMD(0xE3, 0x93),
+	_INIT_DCS_CMD(0xE4, 0x00),
+	_INIT_DCS_CMD(0xE5, 0x80),
+
+	_INIT_DCS_CMD(0x31, 0x07),
+	_INIT_DCS_CMD(0x32, 0x07),
+	_INIT_DCS_CMD(0x33, 0x07),
+	_INIT_DCS_CMD(0x34, 0x07),
+	_INIT_DCS_CMD(0x35, 0x07),
+	_INIT_DCS_CMD(0x36, 0x01),
+	_INIT_DCS_CMD(0x37, 0x00),
+	_INIT_DCS_CMD(0x38, 0x28),
+	_INIT_DCS_CMD(0x39, 0x29),
+	_INIT_DCS_CMD(0x3A, 0x11),
+	_INIT_DCS_CMD(0x3B, 0x13),
+	_INIT_DCS_CMD(0x3C, 0x15),
+	_INIT_DCS_CMD(0x3D, 0x17),
+	_INIT_DCS_CMD(0x3E, 0x09),
+	_INIT_DCS_CMD(0x3F, 0x0D),
+	_INIT_DCS_CMD(0x40, 0x02),
+	_INIT_DCS_CMD(0x41, 0x02),
+	_INIT_DCS_CMD(0x42, 0x02),
+	_INIT_DCS_CMD(0x43, 0x02),
+	_INIT_DCS_CMD(0x44, 0x02),
+	_INIT_DCS_CMD(0x45, 0x02),
+	_INIT_DCS_CMD(0x46, 0x02),
+
+	_INIT_DCS_CMD(0x47, 0x07),
+	_INIT_DCS_CMD(0x48, 0x07),
+	_INIT_DCS_CMD(0x49, 0x07),
+	_INIT_DCS_CMD(0x4A, 0x07),
+	_INIT_DCS_CMD(0x4B, 0x07),
+	_INIT_DCS_CMD(0x4C, 0x01),
+	_INIT_DCS_CMD(0x4D, 0x00),
+	_INIT_DCS_CMD(0x4E, 0x28),
+	_INIT_DCS_CMD(0x4F, 0x29),
+	_INIT_DCS_CMD(0x50, 0x10),
+	_INIT_DCS_CMD(0x51, 0x12),
+	_INIT_DCS_CMD(0x52, 0x14),
+	_INIT_DCS_CMD(0x53, 0x16),
+	_INIT_DCS_CMD(0x54, 0x08),
+	_INIT_DCS_CMD(0x55, 0x0C),
+	_INIT_DCS_CMD(0x56, 0x02),
+	_INIT_DCS_CMD(0x57, 0x02),
+	_INIT_DCS_CMD(0x58, 0x02),
+	_INIT_DCS_CMD(0x59, 0x02),
+	_INIT_DCS_CMD(0x5A, 0x02),
+	_INIT_DCS_CMD(0x5B, 0x02),
+	_INIT_DCS_CMD(0x5C, 0x02),
+
+	_INIT_DCS_CMD(0x61, 0x07),
+	_INIT_DCS_CMD(0x62, 0x07),
+	_INIT_DCS_CMD(0x63, 0x07),
+	_INIT_DCS_CMD(0x64, 0x07),
+	_INIT_DCS_CMD(0x65, 0x07),
+	_INIT_DCS_CMD(0x66, 0x01),
+	_INIT_DCS_CMD(0x67, 0x00),
+	_INIT_DCS_CMD(0x68, 0x28),
+	_INIT_DCS_CMD(0x69, 0x29),
+	_INIT_DCS_CMD(0x6A, 0x16),
+	_INIT_DCS_CMD(0x6B, 0x14),
+	_INIT_DCS_CMD(0x6C, 0x12),
+	_INIT_DCS_CMD(0x6D, 0x10),
+	_INIT_DCS_CMD(0x6E, 0x0C),
+	_INIT_DCS_CMD(0x6F, 0x08),
+	_INIT_DCS_CMD(0x70, 0x02),
+	_INIT_DCS_CMD(0x71, 0x02),
+	_INIT_DCS_CMD(0x72, 0x02),
+	_INIT_DCS_CMD(0x73, 0x02),
+	_INIT_DCS_CMD(0x74, 0x02),
+	_INIT_DCS_CMD(0x75, 0x02),
+	_INIT_DCS_CMD(0x76, 0x02),
+
+	_INIT_DCS_CMD(0x77, 0x07),
+	_INIT_DCS_CMD(0x78, 0x07),
+	_INIT_DCS_CMD(0x79, 0x07),
+	_INIT_DCS_CMD(0x7A, 0x07),
+	_INIT_DCS_CMD(0x7B, 0x07),
+	_INIT_DCS_CMD(0x7C, 0x01),
+	_INIT_DCS_CMD(0x7D, 0x00),
+	_INIT_DCS_CMD(0x7E, 0x28),
+	_INIT_DCS_CMD(0x7F, 0x29),
+	_INIT_DCS_CMD(0x80, 0x17),
+	_INIT_DCS_CMD(0x81, 0x15),
+	_INIT_DCS_CMD(0x82, 0x13),
+	_INIT_DCS_CMD(0x83, 0x11),
+	_INIT_DCS_CMD(0x84, 0x0D),
+	_INIT_DCS_CMD(0x85, 0x09),
+	_INIT_DCS_CMD(0x86, 0x02),
+	_INIT_DCS_CMD(0x87, 0x07),
+	_INIT_DCS_CMD(0x88, 0x07),
+	_INIT_DCS_CMD(0x89, 0x07),
+	_INIT_DCS_CMD(0x8A, 0x07),
+	_INIT_DCS_CMD(0x8B, 0x07),
+	_INIT_DCS_CMD(0x8C, 0x07),
+
+	_INIT_SWITCH_PAGE_CMD(0x02),
+	_INIT_DCS_CMD(0x29, 0x3A),
+	_INIT_DCS_CMD(0x2A, 0x3B),
+
+	_INIT_DCS_CMD(0x06, 0x01),
+	_INIT_DCS_CMD(0x07, 0x01),
+	_INIT_DCS_CMD(0x08, 0x0C),
+	_INIT_DCS_CMD(0x09, 0x44),
+
+	_INIT_DCS_CMD(0x3C, 0x0A),
+	_INIT_DCS_CMD(0x39, 0x11),
+	_INIT_DCS_CMD(0x3D, 0x00),
+	_INIT_DCS_CMD(0x3A, 0x0C),
+	_INIT_DCS_CMD(0x3B, 0x44),
+
+	_INIT_DCS_CMD(0x53, 0x1F),
+	_INIT_DCS_CMD(0x5E, 0x40),
+	_INIT_DCS_CMD(0x84, 0x00),
+
+	_INIT_SWITCH_PAGE_CMD(0x03),
+	_INIT_DCS_CMD(0x20, 0x01),
+	_INIT_DCS_CMD(0x21, 0x3C),
+	_INIT_DCS_CMD(0x22, 0xFA),
+
+	_INIT_SWITCH_PAGE_CMD(0x0A),
+	_INIT_DCS_CMD(0xE0, 0x01),
+	_INIT_DCS_CMD(0xE2, 0x01),
+	_INIT_DCS_CMD(0xE5, 0x91),
+	_INIT_DCS_CMD(0xE6, 0x3C),
+	_INIT_DCS_CMD(0xE7, 0x00),
+	_INIT_DCS_CMD(0xE8, 0xFA),
+
+	_INIT_SWITCH_PAGE_CMD(0x12),
+	_INIT_DCS_CMD(0x87, 0x2C),
+
+	_INIT_SWITCH_PAGE_CMD(0x05),
+	_INIT_DCS_CMD(0x73, 0xE5),
+	_INIT_DCS_CMD(0x7F, 0x6B),
+	_INIT_DCS_CMD(0x6D, 0xA4),
+	_INIT_DCS_CMD(0x79, 0x54),
+	_INIT_DCS_CMD(0x69, 0x97),
+	_INIT_DCS_CMD(0x6A, 0x97),
+	_INIT_DCS_CMD(0xA5, 0x3F),
+	_INIT_DCS_CMD(0x61, 0xDA),
+	_INIT_DCS_CMD(0xA7, 0xF1),
+	_INIT_DCS_CMD(0x5F, 0x01),
+	_INIT_DCS_CMD(0x62, 0x3F),
+	_INIT_DCS_CMD(0x1D, 0x90),
+	_INIT_DCS_CMD(0x86, 0x87),
+
+	_INIT_SWITCH_PAGE_CMD(0x06),
+	_INIT_DCS_CMD(0xC0, 0x80),
+	_INIT_DCS_CMD(0xC1, 0x07),
+	_INIT_DCS_CMD(0xCA, 0x58),
+	_INIT_DCS_CMD(0xCB, 0x02),
+	_INIT_DCS_CMD(0xCE, 0x58),
+	_INIT_DCS_CMD(0xCF, 0x02),
+	_INIT_DCS_CMD(0x67, 0x60),
+	_INIT_DCS_CMD(0x10, 0x00),
+	_INIT_DCS_CMD(0x92, 0x22),
+	_INIT_DCS_CMD(0xD3, 0x08),
+	_INIT_DCS_CMD(0xD6, 0x55),
+	_INIT_DCS_CMD(0xDC, 0x38),
+
+	_INIT_SWITCH_PAGE_CMD(0x08),
+	_INIT_DCS_CMD(0xE0, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8),
+	_INIT_DCS_CMD(0xE1, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8),
+
+	_INIT_SWITCH_PAGE_CMD(0x04),
+	_INIT_DCS_CMD(0xBA, 0x81),
+
+	_INIT_SWITCH_PAGE_CMD(0x0C),
+	_INIT_DCS_CMD(0x00, 0x02),
+	_INIT_DCS_CMD(0x01, 0x00),
+	_INIT_DCS_CMD(0x02, 0x03),
+	_INIT_DCS_CMD(0x03, 0x01),
+	_INIT_DCS_CMD(0x04, 0x03),
+	_INIT_DCS_CMD(0x05, 0x02),
+	_INIT_DCS_CMD(0x06, 0x04),
+	_INIT_DCS_CMD(0x07, 0x03),
+	_INIT_DCS_CMD(0x08, 0x03),
+	_INIT_DCS_CMD(0x09, 0x04),
+	_INIT_DCS_CMD(0x0A, 0x04),
+	_INIT_DCS_CMD(0x0B, 0x05),
+	_INIT_DCS_CMD(0x0C, 0x04),
+	_INIT_DCS_CMD(0x0D, 0x06),
+	_INIT_DCS_CMD(0x0E, 0x05),
+	_INIT_DCS_CMD(0x0F, 0x07),
+	_INIT_DCS_CMD(0x10, 0x04),
+	_INIT_DCS_CMD(0x11, 0x08),
+	_INIT_DCS_CMD(0x12, 0x05),
+	_INIT_DCS_CMD(0x13, 0x09),
+	_INIT_DCS_CMD(0x14, 0x05),
+	_INIT_DCS_CMD(0x15, 0x0A),
+	_INIT_DCS_CMD(0x16, 0x06),
+	_INIT_DCS_CMD(0x17, 0x0B),
+	_INIT_DCS_CMD(0x18, 0x05),
+	_INIT_DCS_CMD(0x19, 0x0C),
+	_INIT_DCS_CMD(0x1A, 0x06),
+	_INIT_DCS_CMD(0x1B, 0x0D),
+	_INIT_DCS_CMD(0x1C, 0x06),
+	_INIT_DCS_CMD(0x1D, 0x0E),
+	_INIT_DCS_CMD(0x1E, 0x07),
+	_INIT_DCS_CMD(0x1F, 0x0F),
+	_INIT_DCS_CMD(0x20, 0x06),
+	_INIT_DCS_CMD(0x21, 0x10),
+	_INIT_DCS_CMD(0x22, 0x07),
+	_INIT_DCS_CMD(0x23, 0x11),
+	_INIT_DCS_CMD(0x24, 0x07),
+	_INIT_DCS_CMD(0x25, 0x12),
+	_INIT_DCS_CMD(0x26, 0x08),
+	_INIT_DCS_CMD(0x27, 0x13),
+	_INIT_DCS_CMD(0x28, 0x07),
+	_INIT_DCS_CMD(0x29, 0x14),
+	_INIT_DCS_CMD(0x2A, 0x08),
+	_INIT_DCS_CMD(0x2B, 0x15),
+	_INIT_DCS_CMD(0x2C, 0x08),
+	_INIT_DCS_CMD(0x2D, 0x16),
+	_INIT_DCS_CMD(0x2E, 0x09),
+	_INIT_DCS_CMD(0x2F, 0x17),
+	_INIT_DCS_CMD(0x30, 0x08),
+	_INIT_DCS_CMD(0x31, 0x18),
+	_INIT_DCS_CMD(0x32, 0x09),
+	_INIT_DCS_CMD(0x33, 0x19),
+	_INIT_DCS_CMD(0x34, 0x09),
+	_INIT_DCS_CMD(0x35, 0x1A),
+	_INIT_DCS_CMD(0x36, 0x0A),
+	_INIT_DCS_CMD(0x37, 0x1B),
+	_INIT_DCS_CMD(0x38, 0x0A),
+	_INIT_DCS_CMD(0x39, 0x1C),
+	_INIT_DCS_CMD(0x3A, 0x0A),
+	_INIT_DCS_CMD(0x3B, 0x1D),
+	_INIT_DCS_CMD(0x3C, 0x0A),
+	_INIT_DCS_CMD(0x3D, 0x1E),
+	_INIT_DCS_CMD(0x3E, 0x0A),
+	_INIT_DCS_CMD(0x3F, 0x1F),
+
+	_INIT_SWITCH_PAGE_CMD(0x04),
+	_INIT_DCS_CMD(0xBA, 0x01),
+
+	_INIT_SWITCH_PAGE_CMD(0x0E),
+	_INIT_DCS_CMD(0x02, 0x0C),
+	_INIT_DCS_CMD(0x20, 0x10),
+	_INIT_DCS_CMD(0x25, 0x16),
+	_INIT_DCS_CMD(0x26, 0xE0),
+	_INIT_DCS_CMD(0x27, 0x00),
+	_INIT_DCS_CMD(0x29, 0x71),
+	_INIT_DCS_CMD(0x2A, 0x46),
+	_INIT_DCS_CMD(0x2B, 0x1F),
+	_INIT_DCS_CMD(0x2D, 0xC7),
+	_INIT_DCS_CMD(0x31, 0x02),
+	_INIT_DCS_CMD(0x32, 0xDF),
+	_INIT_DCS_CMD(0x33, 0x5A),
+	_INIT_DCS_CMD(0x34, 0xC0),
+	_INIT_DCS_CMD(0x35, 0x5A),
+	_INIT_DCS_CMD(0x36, 0xC0),
+	_INIT_DCS_CMD(0x38, 0x65),
+	_INIT_DCS_CMD(0x80, 0x3E),
+	_INIT_DCS_CMD(0x81, 0xA0),
+	_INIT_DCS_CMD(0xB0, 0x01),
+	_INIT_DCS_CMD(0xB1, 0xCC),
+	_INIT_DCS_CMD(0xC0, 0x12),
+	_INIT_DCS_CMD(0xC2, 0xCC),
+	_INIT_DCS_CMD(0xC3, 0xCC),
+	_INIT_DCS_CMD(0xC4, 0xCC),
+	_INIT_DCS_CMD(0xC5, 0xCC),
+	_INIT_DCS_CMD(0xC6, 0xCC),
+	_INIT_DCS_CMD(0xC7, 0xCC),
+	_INIT_DCS_CMD(0xC8, 0xCC),
+	_INIT_DCS_CMD(0xC9, 0xCC),
+	_INIT_DCS_CMD(0x30, 0x00),
+	_INIT_DCS_CMD(0x00, 0x81),
+	_INIT_DCS_CMD(0x08, 0x02),
+	_INIT_DCS_CMD(0x09, 0x00),
+	_INIT_DCS_CMD(0x07, 0x21),
+	_INIT_DCS_CMD(0x04, 0x10),
+
+	_INIT_SWITCH_PAGE_CMD(0x1E),
+	_INIT_DCS_CMD(0x60, 0x00),
+	_INIT_DCS_CMD(0x64, 0x00),
+	_INIT_DCS_CMD(0x6D, 0x00),
+
+	_INIT_SWITCH_PAGE_CMD(0x0B),
+	_INIT_DCS_CMD(0xA6, 0x44),
+	_INIT_DCS_CMD(0xA7, 0xB6),
+	_INIT_DCS_CMD(0xA8, 0x03),
+	_INIT_DCS_CMD(0xA9, 0x03),
+	_INIT_DCS_CMD(0xAA, 0x51),
+	_INIT_DCS_CMD(0xAB, 0x51),
+	_INIT_DCS_CMD(0xAC, 0x04),
+	_INIT_DCS_CMD(0xBD, 0x92),
+	_INIT_DCS_CMD(0xBE, 0xA1),
+
+	_INIT_SWITCH_PAGE_CMD(0x05),
+	_INIT_DCS_CMD(0x86, 0x87),
+
+	_INIT_SWITCH_PAGE_CMD(0x06),
+	_INIT_DCS_CMD(0x92, 0x22),
+
+	_INIT_SWITCH_PAGE_CMD(0x00),
+	_INIT_DCS_CMD(MIPI_DCS_EXIT_SLEEP_MODE),
+	_INIT_DELAY_CMD(120),
+	_INIT_DCS_CMD(MIPI_DCS_SET_DISPLAY_ON),
+	_INIT_DELAY_CMD(20),
+	{},
+};
+
+static inline struct ili9882t *to_ili9882t(struct drm_panel *panel)
+{
+	return container_of(panel, struct ili9882t, base);
+}
+
+static int ili9882t_init_dcs_cmd(struct ili9882t *ili)
+{
+	struct mipi_dsi_device *dsi = ili->dsi;
+	struct drm_panel *panel = &ili->base;
+	int i, err = 0;
+
+	if (ili->desc->init_cmds) {
+		const struct panel_init_cmd *init_cmds = ili->desc->init_cmds;
+
+		for (i = 0; init_cmds[i].len != 0; i++) {
+			const struct panel_init_cmd *cmd = &init_cmds[i];
+
+			switch (cmd->type) {
+			case DELAY_CMD:
+				msleep(cmd->data[0]);
+				err = 0;
+				break;
+
+			case INIT_DCS_CMD:
+				err = mipi_dsi_dcs_write(dsi, cmd->data[0],
+							 cmd->len <= 1 ? NULL :
+							 &cmd->data[1],
+							 cmd->len - 1);
+				break;
+
+			default:
+				err = -EINVAL;
+			}
+
+			if (err < 0) {
+				dev_err(panel->dev,
+					"failed to write command %u\n", i);
+				return err;
+			}
+		}
+	}
+	return 0;
+}
+
+static int ili9882t_enter_sleep_mode(struct ili9882t *ili)
+{
+	struct mipi_dsi_device *dsi = ili->dsi;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0)
+		return ret;
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int ili9882t_disable(struct drm_panel *panel)
+{
+	struct ili9882t *ili = to_ili9882t(panel);
+	int ret;
+
+	ret = ili9882t_enter_sleep_mode(ili);
+	if (ret < 0) {
+		dev_err(panel->dev, "failed to set panel off: %d\n", ret);
+		return ret;
+	}
+
+	msleep(150);
+
+	return 0;
+}
+
+static int ili9882t_unprepare(struct drm_panel *panel)
+{
+	struct ili9882t *ili = to_ili9882t(panel);
+
+	gpiod_set_value(ili->enable_gpio, 0);
+	usleep_range(1000, 2000);
+	regulator_disable(ili->avee);
+	regulator_disable(ili->avdd);
+	usleep_range(5000, 7000);
+	regulator_disable(ili->pp1800);
+	regulator_disable(ili->pp3300);
+
+	return 0;
+}
+
+static int ili9882t_prepare(struct drm_panel *panel)
+{
+	struct ili9882t *ili = to_ili9882t(panel);
+	int ret;
+
+	gpiod_set_value(ili->enable_gpio, 0);
+	usleep_range(1000, 1500);
+
+	ret = regulator_enable(ili->pp3300);
+	if (ret < 0)
+		return ret;
+
+	ret = regulator_enable(ili->pp1800);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(3000, 5000);
+
+	ret = regulator_enable(ili->avdd);
+	if (ret < 0)
+		goto poweroff1v8;
+	ret = regulator_enable(ili->avee);
+	if (ret < 0)
+		goto poweroffavdd;
+
+	usleep_range(10000, 11000);
+
+	// MIPI needs to keep the LP11 state before the lcm_reset pin is pulled high
+	mipi_dsi_dcs_nop(ili->dsi);
+	usleep_range(1000, 2000);
+
+	gpiod_set_value(ili->enable_gpio, 1);
+	usleep_range(1000, 2000);
+	gpiod_set_value(ili->enable_gpio, 0);
+	usleep_range(1000, 2000);
+	gpiod_set_value(ili->enable_gpio, 1);
+	usleep_range(6000, 10000);
+
+	ret = ili9882t_init_dcs_cmd(ili);
+	if (ret < 0) {
+		dev_err(panel->dev, "failed to init panel: %d\n", ret);
+		goto poweroff;
+	}
+
+	return 0;
+
+poweroff:
+	regulator_disable(ili->avee);
+poweroffavdd:
+	regulator_disable(ili->avdd);
+poweroff1v8:
+	usleep_range(5000, 7000);
+	regulator_disable(ili->pp1800);
+	gpiod_set_value(ili->enable_gpio, 0);
+
+	return ret;
+}
+
+static int ili9882t_enable(struct drm_panel *panel)
+{
+	msleep(130);
+	return 0;
+}
+
+static const struct drm_display_mode starry_ili9882t_default_mode = {
+	.clock = 165280,
+	.hdisplay = 1200,
+	.hsync_start = 1200 + 72,
+	.hsync_end = 1200 + 72 + 30,
+	.htotal = 1200 + 72 + 30 + 72,
+	.vdisplay = 1920,
+	.vsync_start = 1920 + 68,
+	.vsync_end = 1920 + 68 + 2,
+	.vtotal = 1920 + 68 + 2 + 10,
+	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct panel_desc starry_ili9882t_desc = {
+	.modes = &starry_ili9882t_default_mode,
+	.bpc = 8,
+	.size = {
+		.width_mm = 141,
+		.height_mm = 226,
+	},
+	.lanes = 4,
+	.format = MIPI_DSI_FMT_RGB888,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+		      MIPI_DSI_MODE_LPM,
+	.init_cmds = starry_ili9882t_init_cmd,
+};
+
+static int ili9882t_get_modes(struct drm_panel *panel,
+			      struct drm_connector *connector)
+{
+	struct ili9882t *ili = to_ili9882t(panel);
+	const struct drm_display_mode *m = ili->desc->modes;
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, m);
+	if (!mode) {
+		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+			m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
+		return -ENOMEM;
+	}
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	drm_mode_set_name(mode);
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = ili->desc->size.width_mm;
+	connector->display_info.height_mm = ili->desc->size.height_mm;
+	connector->display_info.bpc = ili->desc->bpc;
+
+	return 1;
+}
+
+static enum drm_panel_orientation ili9882t_get_orientation(struct drm_panel *panel)
+{
+	struct ili9882t *ili = to_ili9882t(panel);
+
+	return ili->orientation;
+}
+
+static const struct drm_panel_funcs ili9882t_funcs = {
+	.disable = ili9882t_disable,
+	.unprepare = ili9882t_unprepare,
+	.prepare = ili9882t_prepare,
+	.enable = ili9882t_enable,
+	.get_modes = ili9882t_get_modes,
+	.get_orientation = ili9882t_get_orientation,
+};
+
+static int ili9882t_add(struct ili9882t *ili)
+{
+	struct device *dev = &ili->dsi->dev;
+	int err;
+
+	ili->avdd = devm_regulator_get(dev, "avdd");
+	if (IS_ERR(ili->avdd))
+		return PTR_ERR(ili->avdd);
+
+	ili->avee = devm_regulator_get(dev, "avee");
+	if (IS_ERR(ili->avee))
+		return PTR_ERR(ili->avee);
+
+	ili->pp3300 = devm_regulator_get(dev, "pp3300");
+	if (IS_ERR(ili->pp3300))
+		return PTR_ERR(ili->pp3300);
+
+	ili->pp1800 = devm_regulator_get(dev, "pp1800");
+	if (IS_ERR(ili->pp1800))
+		return PTR_ERR(ili->pp1800);
+
+	ili->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+	if (IS_ERR(ili->enable_gpio)) {
+		dev_err(dev, "cannot get reset-gpios %ld\n",
+			PTR_ERR(ili->enable_gpio));
+		return PTR_ERR(ili->enable_gpio);
+	}
+
+	gpiod_set_value(ili->enable_gpio, 0);
+
+	drm_panel_init(&ili->base, dev, &ili9882t_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+	err = of_drm_get_panel_orientation(dev->of_node, &ili->orientation);
+	if (err < 0) {
+		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
+		return err;
+	}
+
+	err = drm_panel_of_backlight(&ili->base);
+	if (err)
+		return err;
+
+	ili->base.funcs = &ili9882t_funcs;
+	ili->base.dev = &ili->dsi->dev;
+
+	drm_panel_add(&ili->base);
+
+	return 0;
+}
+
+static int ili9882t_probe(struct mipi_dsi_device *dsi)
+{
+	struct ili9882t *ili;
+	int ret;
+	const struct panel_desc *desc;
+
+	ili = devm_kzalloc(&dsi->dev, sizeof(*ili), GFP_KERNEL);
+	if (!ili)
+		return -ENOMEM;
+
+	desc = of_device_get_match_data(&dsi->dev);
+	dsi->lanes = desc->lanes;
+	dsi->format = desc->format;
+	dsi->mode_flags = desc->mode_flags;
+	ili->desc = desc;
+	ili->dsi = dsi;
+	ret = ili9882t_add(ili);
+	if (ret < 0)
+		return ret;
+
+	mipi_dsi_set_drvdata(dsi, ili);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret)
+		drm_panel_remove(&ili->base);
+
+	return ret;
+}
+
+static void ili9882t_remove(struct mipi_dsi_device *dsi)
+{
+	struct ili9882t *ili = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
+
+	if (ili->base.dev)
+		drm_panel_remove(&ili->base);
+}
+
+static const struct of_device_id ili9882t_of_match[] = {
+	{ .compatible = "starry,ili9882t",
+	  .data = &starry_ili9882t_desc
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ili9882t_of_match);
+
+static struct mipi_dsi_driver ili9882t_driver = {
+	.driver = {
+		.name = "panel-ili9882t",
+		.of_match_table = ili9882t_of_match,
+	},
+	.probe = ili9882t_probe,
+	.remove = ili9882t_remove,
+};
+module_mipi_dsi_driver(ili9882t_driver);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_DESCRIPTION("Ilitek ILI9882T-based panels driver");
+MODULE_LICENSE("GPL");
-- 
cgit