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Date:   Mon, 20 Jul 2020 01:10:05 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Maxime Ripard <mripard@...nel.org>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH 3/4] drm/panel: ilitek-ili9881c: add support for Feixin K101-IM2BYL02 panel

Feixin K101-IM2BYL02 is a new panel by Feixin designed as a replacement
to their K101-IM2BA02 panel. This panel utilizes the Ilitek ILI9881C
controller.

Add this panel's initialzation sequence and timing to ILI9881C driver.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
---
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 217 ++++++++++++++++++
 1 file changed, 217 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index 4f8e6865029f1..638108c519f02 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -260,6 +260,199 @@ static const struct ili9881c_instr lhr050h41_init[] = {
 	ILI9881C_COMMAND_INSTR(0xD3, 0x3F),
 };
 
+static const struct ili9881c_instr k101_im2byl02_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, 0x00),
+	ILI9881C_COMMAND_INSTR(0x05, 0x00),
+	ILI9881C_COMMAND_INSTR(0x06, 0x08),
+	ILI9881C_COMMAND_INSTR(0x07, 0x00),
+	ILI9881C_COMMAND_INSTR(0x08, 0x00),
+	ILI9881C_COMMAND_INSTR(0x09, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0A, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0B, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0D, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0E, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0F, 0x00),
+	ILI9881C_COMMAND_INSTR(0x10, 0x00),
+	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, 0xC0),
+	ILI9881C_COMMAND_INSTR(0x20, 0x06),
+	ILI9881C_COMMAND_INSTR(0x21, 0x01),
+	ILI9881C_COMMAND_INSTR(0x22, 0x06),
+	ILI9881C_COMMAND_INSTR(0x23, 0x01),
+	ILI9881C_COMMAND_INSTR(0x24, 0x88),
+	ILI9881C_COMMAND_INSTR(0x25, 0x88),
+	ILI9881C_COMMAND_INSTR(0x26, 0x00),
+	ILI9881C_COMMAND_INSTR(0x27, 0x00),
+	ILI9881C_COMMAND_INSTR(0x28, 0x3B),
+	ILI9881C_COMMAND_INSTR(0x29, 0x03),
+	ILI9881C_COMMAND_INSTR(0x2A, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2B, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2D, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2E, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2F, 0x00),
+	ILI9881C_COMMAND_INSTR(0x30, 0x00),
+	ILI9881C_COMMAND_INSTR(0x31, 0x00),
+	ILI9881C_COMMAND_INSTR(0x32, 0x00),
+	ILI9881C_COMMAND_INSTR(0x33, 0x00),
+	ILI9881C_COMMAND_INSTR(0x34, 0x00), /* GPWR1/2 non overlap time 2.62us */
+	ILI9881C_COMMAND_INSTR(0x35, 0x00),
+	ILI9881C_COMMAND_INSTR(0x36, 0x00),
+	ILI9881C_COMMAND_INSTR(0x37, 0x00),
+	ILI9881C_COMMAND_INSTR(0x38, 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, 0x00),
+	ILI9881C_COMMAND_INSTR(0x44, 0x00),
+	ILI9881C_COMMAND_INSTR(0x50, 0x01),
+	ILI9881C_COMMAND_INSTR(0x51, 0x23),
+	ILI9881C_COMMAND_INSTR(0x52, 0x45),
+	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, 0x00),
+	ILI9881C_COMMAND_INSTR(0x5F, 0x01),
+	ILI9881C_COMMAND_INSTR(0x60, 0x01),
+	ILI9881C_COMMAND_INSTR(0x61, 0x06),
+	ILI9881C_COMMAND_INSTR(0x62, 0x06),
+	ILI9881C_COMMAND_INSTR(0x63, 0x07),
+	ILI9881C_COMMAND_INSTR(0x64, 0x07),
+	ILI9881C_COMMAND_INSTR(0x65, 0x00),
+	ILI9881C_COMMAND_INSTR(0x66, 0x00),
+	ILI9881C_COMMAND_INSTR(0x67, 0x02),
+	ILI9881C_COMMAND_INSTR(0x68, 0x02),
+	ILI9881C_COMMAND_INSTR(0x69, 0x05),
+	ILI9881C_COMMAND_INSTR(0x6A, 0x05),
+	ILI9881C_COMMAND_INSTR(0x6B, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6C, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x6D, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x6E, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x6F, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x70, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x71, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x72, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x73, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x74, 0x02),
+	ILI9881C_COMMAND_INSTR(0x75, 0x01),
+	ILI9881C_COMMAND_INSTR(0x76, 0x01),
+	ILI9881C_COMMAND_INSTR(0x77, 0x06),
+	ILI9881C_COMMAND_INSTR(0x78, 0x06),
+	ILI9881C_COMMAND_INSTR(0x79, 0x07),
+	ILI9881C_COMMAND_INSTR(0x7A, 0x07),
+	ILI9881C_COMMAND_INSTR(0x7B, 0x00),
+	ILI9881C_COMMAND_INSTR(0x7C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x7D, 0x02),
+	ILI9881C_COMMAND_INSTR(0x7E, 0x02),
+	ILI9881C_COMMAND_INSTR(0x7F, 0x05),
+	ILI9881C_COMMAND_INSTR(0x80, 0x05),
+	ILI9881C_COMMAND_INSTR(0x81, 0x02),
+	ILI9881C_COMMAND_INSTR(0x82, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x83, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x84, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x85, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x86, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x87, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x88, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x89, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x8A, 0x02),
+	ILI9881C_SWITCH_PAGE_INSTR(4),
+	ILI9881C_COMMAND_INSTR(0x3B, 0xC0), /* ILI4003D sel */
+	ILI9881C_COMMAND_INSTR(0x6C, 0x15), /* Set VCORE voltage = 1.5V */
+	ILI9881C_COMMAND_INSTR(0x6E, 0x2A), /* di_pwr_reg=0 for power mode 2A, VGH clamp 18V */
+	ILI9881C_COMMAND_INSTR(0x6F, 0x33), /* pumping ratio VGH=5x VGL=-3x */
+	ILI9881C_COMMAND_INSTR(0x8D, 0x1B), /* VGL clamp -10V */
+	ILI9881C_COMMAND_INSTR(0x87, 0xBA), /* ESD */
+	ILI9881C_COMMAND_INSTR(0x3A, 0x24), /* POWER SAVING */
+	ILI9881C_COMMAND_INSTR(0x26, 0x76),
+	ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
+	ILI9881C_SWITCH_PAGE_INSTR(1),
+	ILI9881C_COMMAND_INSTR(0x22, 0x0A), /* BGR, SS */
+	ILI9881C_COMMAND_INSTR(0x31, 0x00), /* Zigzag type3 inversion */
+	ILI9881C_COMMAND_INSTR(0x40, 0x53), /* ILI4003D sel */
+	ILI9881C_COMMAND_INSTR(0x43, 0x66),
+	ILI9881C_COMMAND_INSTR(0x53, 0x4C),
+	ILI9881C_COMMAND_INSTR(0x50, 0x87),
+	ILI9881C_COMMAND_INSTR(0x51, 0x82),
+	ILI9881C_COMMAND_INSTR(0x60, 0x15),
+	ILI9881C_COMMAND_INSTR(0x61, 0x01),
+	ILI9881C_COMMAND_INSTR(0x62, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x63, 0x00),
+	ILI9881C_COMMAND_INSTR(0xA0, 0x00),
+	ILI9881C_COMMAND_INSTR(0xA1, 0x13), /* VP251 */
+	ILI9881C_COMMAND_INSTR(0xA2, 0x23), /* VP247 */
+	ILI9881C_COMMAND_INSTR(0xA3, 0x14), /* VP243 */
+	ILI9881C_COMMAND_INSTR(0xA4, 0x16), /* VP239 */
+	ILI9881C_COMMAND_INSTR(0xA5, 0x29), /* VP231 */
+	ILI9881C_COMMAND_INSTR(0xA6, 0x1E), /* VP219 */
+	ILI9881C_COMMAND_INSTR(0xA7, 0x1D), /* VP203 */
+	ILI9881C_COMMAND_INSTR(0xA8, 0x86), /* VP175 */
+	ILI9881C_COMMAND_INSTR(0xA9, 0x1E), /* VP144 */
+	ILI9881C_COMMAND_INSTR(0xAA, 0x29), /* VP111 */
+	ILI9881C_COMMAND_INSTR(0xAB, 0x74), /* VP80 */
+	ILI9881C_COMMAND_INSTR(0xAC, 0x19), /* VP52 */
+	ILI9881C_COMMAND_INSTR(0xAD, 0x17), /* VP36 */
+	ILI9881C_COMMAND_INSTR(0xAE, 0x4B), /* VP24 */
+	ILI9881C_COMMAND_INSTR(0xAF, 0x20), /* VP16 */
+	ILI9881C_COMMAND_INSTR(0xB0, 0x26), /* VP12 */
+	ILI9881C_COMMAND_INSTR(0xB1, 0x4C), /* VP8 */
+	ILI9881C_COMMAND_INSTR(0xB2, 0x5D), /* VP4 */
+	ILI9881C_COMMAND_INSTR(0xB3, 0x3F), /* VP0 */
+	ILI9881C_COMMAND_INSTR(0xC0, 0x00), /* VN255 GAMMA N */
+	ILI9881C_COMMAND_INSTR(0xC1, 0x13), /* VN251 */
+	ILI9881C_COMMAND_INSTR(0xC2, 0x23), /* VN247 */
+	ILI9881C_COMMAND_INSTR(0xC3, 0x14), /* VN243 */
+	ILI9881C_COMMAND_INSTR(0xC4, 0x16), /* VN239 */
+	ILI9881C_COMMAND_INSTR(0xC5, 0x29), /* VN231 */
+	ILI9881C_COMMAND_INSTR(0xC6, 0x1E), /* VN219 */
+	ILI9881C_COMMAND_INSTR(0xC7, 0x1D), /* VN203 */
+	ILI9881C_COMMAND_INSTR(0xC8, 0x86), /* VN175 */
+	ILI9881C_COMMAND_INSTR(0xC9, 0x1E), /* VN144 */
+	ILI9881C_COMMAND_INSTR(0xCA, 0x29), /* VN111 */
+	ILI9881C_COMMAND_INSTR(0xCB, 0x74), /* VN80 */
+	ILI9881C_COMMAND_INSTR(0xCC, 0x19), /* VN52 */
+	ILI9881C_COMMAND_INSTR(0xCD, 0x17), /* VN36 */
+	ILI9881C_COMMAND_INSTR(0xCE, 0x4B), /* VN24 */
+	ILI9881C_COMMAND_INSTR(0xCF, 0x20), /* VN16 */
+	ILI9881C_COMMAND_INSTR(0xD0, 0x26), /* VN12 */
+	ILI9881C_COMMAND_INSTR(0xD1, 0x4C), /* VN8 */
+	ILI9881C_COMMAND_INSTR(0xD2, 0x5D), /* VN4 */
+	ILI9881C_COMMAND_INSTR(0xD3, 0x3F), /* VN0 */
+};
+
 static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
 {
 	return container_of(panel, struct ili9881c, panel);
@@ -393,6 +586,23 @@ static const struct drm_display_mode lhr050h41_default_mode = {
 	.height_mm	= 110,
 };
 
+static const struct drm_display_mode k101_im2byl02_default_mode = {
+	.clock		= 69700,
+
+	.hdisplay	= 800,
+	.hsync_start	= 800 + 6,
+	.hsync_end	= 800 + 6 + 15,
+	.htotal		= 800 + 6 + 15 + 16,
+
+	.vdisplay	= 1280,
+	.vsync_start	= 1280 + 8,
+	.vsync_end	= 1280 + 8 + 48,
+	.vtotal		= 1280 + 8 + 48 + 52,
+
+	.width_mm	= 135,
+	.height_mm	= 217,
+};
+
 static int ili9881c_get_modes(struct drm_panel *panel,
 			      struct drm_connector *connector)
 {
@@ -485,8 +695,15 @@ static const struct ili9881c_desc lhr050h41_desc = {
 	.mode = &lhr050h41_default_mode,
 };
 
+static const struct ili9881c_desc k101_im2byl02_desc = {
+	.init = k101_im2byl02_init,
+	.init_length = ARRAY_SIZE(k101_im2byl02_init),
+	.mode = &k101_im2byl02_default_mode,
+};
+
 static const struct of_device_id ili9881c_of_match[] = {
 	{ .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
+	{ .compatible = "feixin,k101-im2byl02", .data = &k101_im2byl02_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ili9881c_of_match);
-- 
2.27.0

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