[v2,2/2] drm/panel: support for BOE tv101wum-nl6 wuxga dsi video mode panel

Submitted by Jitao Shi on June 24, 2019, 6:03 a.m.

Details

Message ID 20190624060343.62451-3-jitao.shi@mediatek.com
State New
Headers show
Series "Add BOE tv101wum-nl6 panel driver" ( rev: 1 ) in DRI devel

Not browsing as part of any series.

Commit Message

Jitao Shi June 24, 2019, 6:03 a.m.
Add driver for BOE tv101wum-nl6 panel is a 10.1" 1200x1920 panel.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/gpu/drm/panel/Kconfig                 |  10 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 715 ++++++++++++++++++
 3 files changed, 726 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c

Patch hide | download patch | download mbox

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index e36dbb4df867..2b055ce0700b 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -17,6 +17,15 @@  config DRM_PANEL_ARM_VERSATILE
 	  reference designs. The panel is detected using special registers
 	  in the Versatile family syscon registers.
 
+config DRM_PANEL_BOE_TV101WUM_NL6
+	tristate "BOE TV101WUM 1200x1920 panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to support for BOE TV101WUM WUXGA PANEL
+	  DSI Video Mode panel
+
 config DRM_PANEL_LVDS
 	tristate "Generic LVDS panel driver"
 	depends on OF
@@ -272,4 +281,5 @@  config DRM_PANEL_TRULY_NT35597_WQXGA
 	help
 	  Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
 	  Video Mode panel
+
 endmenu
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 78e3dc376bdd..8d009223c44e 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -1,5 +1,6 @@ 
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o
+obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o
 obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
 obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
 obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
new file mode 100644
index 000000000000..6e06c8506623
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -0,0 +1,715 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Jitao Shi <jitao.shi@mediatek.com>
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+#include <video/mipi_display.h>
+
+struct panel_desc {
+	const struct drm_display_mode *modes;
+	unsigned int bpc;
+
+	/**
+	 * @width: width (in millimeters) of the panel's active display area
+	 * @height: height (in millimeters) of the panel's active display area
+	 */
+	struct {
+		unsigned int width;
+		unsigned int height;
+	} size;
+
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	const struct panel_init_cmd *init_cmds;
+	unsigned int lanes;
+};
+
+struct boe_panel {
+	struct drm_panel base;
+	struct mipi_dsi_device *dsi;
+
+	const struct panel_desc *desc;
+
+	struct backlight_device *backlight;
+	struct regulator *pp1800;
+	struct regulator *avee;
+	struct regulator *avdd;
+	struct gpio_desc *enable_gpio;
+
+	bool prepared;
+	bool enabled;
+
+	const struct drm_display_mode *mode;
+};
+
+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__} }
+
+static const struct panel_init_cmd boe_init_cmd[] = {
+	_INIT_DELAY_CMD(24),
+	_INIT_DCS_CMD(0xB0, 0x05),
+	_INIT_DCS_CMD(0xB1, 0xE5),
+	_INIT_DCS_CMD(0xB3, 0x52),
+	_INIT_DCS_CMD(0xB0, 0x00),
+	_INIT_DCS_CMD(0xB3, 0x88),
+	_INIT_DCS_CMD(0xB0, 0x04),
+	_INIT_DCS_CMD(0xB8, 0x00),
+	_INIT_DCS_CMD(0xB0, 0x00),
+	_INIT_DCS_CMD(0xB6, 0x03),
+	_INIT_DCS_CMD(0xBA, 0x8B),
+	_INIT_DCS_CMD(0xBF, 0x1A),
+	_INIT_DCS_CMD(0xC0, 0x0F),
+	_INIT_DCS_CMD(0xC2, 0x0C),
+	_INIT_DCS_CMD(0xC3, 0x02),
+	_INIT_DCS_CMD(0xC4, 0x0C),
+	_INIT_DCS_CMD(0xC5, 0x02),
+	_INIT_DCS_CMD(0xB0, 0x01),
+	_INIT_DCS_CMD(0xE0, 0x26),
+	_INIT_DCS_CMD(0xE1, 0x26),
+	_INIT_DCS_CMD(0xDC, 0x00),
+	_INIT_DCS_CMD(0xDD, 0x00),
+	_INIT_DCS_CMD(0xCC, 0x26),
+	_INIT_DCS_CMD(0xCD, 0x26),
+	_INIT_DCS_CMD(0xC8, 0x00),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xD2, 0x03),
+	_INIT_DCS_CMD(0xD3, 0x03),
+	_INIT_DCS_CMD(0xE6, 0x04),
+	_INIT_DCS_CMD(0xE7, 0x04),
+	_INIT_DCS_CMD(0xC4, 0x09),
+	_INIT_DCS_CMD(0xC5, 0x09),
+	_INIT_DCS_CMD(0xD8, 0x0A),
+	_INIT_DCS_CMD(0xD9, 0x0A),
+	_INIT_DCS_CMD(0xC2, 0x0B),
+	_INIT_DCS_CMD(0xC3, 0x0B),
+	_INIT_DCS_CMD(0xD6, 0x0C),
+	_INIT_DCS_CMD(0xD7, 0x0C),
+	_INIT_DCS_CMD(0xC0, 0x05),
+	_INIT_DCS_CMD(0xC1, 0x05),
+	_INIT_DCS_CMD(0xD4, 0x06),
+	_INIT_DCS_CMD(0xD5, 0x06),
+	_INIT_DCS_CMD(0xCA, 0x07),
+	_INIT_DCS_CMD(0xCB, 0x07),
+	_INIT_DCS_CMD(0xDE, 0x08),
+	_INIT_DCS_CMD(0xDF, 0x08),
+	_INIT_DCS_CMD(0xB0, 0x02),
+	_INIT_DCS_CMD(0xC0, 0x00),
+	_INIT_DCS_CMD(0xC1, 0x0D),
+	_INIT_DCS_CMD(0xC2, 0x17),
+	_INIT_DCS_CMD(0xC3, 0x26),
+	_INIT_DCS_CMD(0xC4, 0x31),
+	_INIT_DCS_CMD(0xC5, 0x1C),
+	_INIT_DCS_CMD(0xC6, 0x2C),
+	_INIT_DCS_CMD(0xC7, 0x33),
+	_INIT_DCS_CMD(0xC8, 0x31),
+	_INIT_DCS_CMD(0xC9, 0x37),
+	_INIT_DCS_CMD(0xCA, 0x37),
+	_INIT_DCS_CMD(0xCB, 0x37),
+	_INIT_DCS_CMD(0xCC, 0x39),
+	_INIT_DCS_CMD(0xCD, 0x2E),
+	_INIT_DCS_CMD(0xCE, 0x2F),
+	_INIT_DCS_CMD(0xCF, 0x2F),
+	_INIT_DCS_CMD(0xD0, 0x07),
+	_INIT_DCS_CMD(0xD2, 0x00),
+	_INIT_DCS_CMD(0xD3, 0x0D),
+	_INIT_DCS_CMD(0xD4, 0x17),
+	_INIT_DCS_CMD(0xD5, 0x26),
+	_INIT_DCS_CMD(0xD6, 0x31),
+	_INIT_DCS_CMD(0xD7, 0x3F),
+	_INIT_DCS_CMD(0xD8, 0x3F),
+	_INIT_DCS_CMD(0xD9, 0x3F),
+	_INIT_DCS_CMD(0xDA, 0x3F),
+	_INIT_DCS_CMD(0xDB, 0x37),
+	_INIT_DCS_CMD(0xDC, 0x37),
+	_INIT_DCS_CMD(0xDD, 0x37),
+	_INIT_DCS_CMD(0xDE, 0x39),
+	_INIT_DCS_CMD(0xDF, 0x2E),
+	_INIT_DCS_CMD(0xE0, 0x2F),
+	_INIT_DCS_CMD(0xE1, 0x2F),
+	_INIT_DCS_CMD(0xE2, 0x07),
+	_INIT_DCS_CMD(0xB0, 0x03),
+	_INIT_DCS_CMD(0xC8, 0x0B),
+	_INIT_DCS_CMD(0xC9, 0x07),
+	_INIT_DCS_CMD(0xC3, 0x00),
+	_INIT_DCS_CMD(0xE7, 0x00),
+	_INIT_DCS_CMD(0xC5, 0x2A),
+	_INIT_DCS_CMD(0xDE, 0x2A),
+	_INIT_DCS_CMD(0xCA, 0x43),
+	_INIT_DCS_CMD(0xC9, 0x07),
+	_INIT_DCS_CMD(0xE4, 0xC0),
+	_INIT_DCS_CMD(0xE5, 0x0D),
+	_INIT_DCS_CMD(0xCB, 0x00),
+	_INIT_DCS_CMD(0xB0, 0x06),
+	_INIT_DCS_CMD(0xB8, 0xA5),
+	_INIT_DCS_CMD(0xC0, 0xA5),
+	_INIT_DCS_CMD(0xC7, 0x0F),
+	_INIT_DCS_CMD(0xD5, 0x32),
+	_INIT_DCS_CMD(0xB8, 0x00),
+	_INIT_DCS_CMD(0xC0, 0x00),
+	_INIT_DCS_CMD(0xBC, 0x00),
+	_INIT_DCS_CMD(0xB0, 0x07),
+	_INIT_DCS_CMD(0xB1, 0x00),
+	_INIT_DCS_CMD(0xB2, 0x02),
+	_INIT_DCS_CMD(0xB3, 0x0F),
+	_INIT_DCS_CMD(0xB4, 0x25),
+	_INIT_DCS_CMD(0xB5, 0x39),
+	_INIT_DCS_CMD(0xB6, 0x4E),
+	_INIT_DCS_CMD(0xB7, 0x72),
+	_INIT_DCS_CMD(0xB8, 0x97),
+	_INIT_DCS_CMD(0xB9, 0xDC),
+	_INIT_DCS_CMD(0xBA, 0x22),
+	_INIT_DCS_CMD(0xBB, 0xA4),
+	_INIT_DCS_CMD(0xBC, 0x2B),
+	_INIT_DCS_CMD(0xBD, 0x2F),
+	_INIT_DCS_CMD(0xBE, 0xA9),
+	_INIT_DCS_CMD(0xBF, 0x25),
+	_INIT_DCS_CMD(0xC0, 0x61),
+	_INIT_DCS_CMD(0xC1, 0x97),
+	_INIT_DCS_CMD(0xC2, 0xB2),
+	_INIT_DCS_CMD(0xC3, 0xCD),
+	_INIT_DCS_CMD(0xC4, 0xD9),
+	_INIT_DCS_CMD(0xC5, 0xE7),
+	_INIT_DCS_CMD(0xC6, 0xF4),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x08),
+	_INIT_DCS_CMD(0xB1, 0x04),
+	_INIT_DCS_CMD(0xB2, 0x05),
+	_INIT_DCS_CMD(0xB3, 0x11),
+	_INIT_DCS_CMD(0xB4, 0x24),
+	_INIT_DCS_CMD(0xB5, 0x39),
+	_INIT_DCS_CMD(0xB6, 0x4F),
+	_INIT_DCS_CMD(0xB7, 0x72),
+	_INIT_DCS_CMD(0xB8, 0x98),
+	_INIT_DCS_CMD(0xB9, 0xDC),
+	_INIT_DCS_CMD(0xBA, 0x23),
+	_INIT_DCS_CMD(0xBB, 0xA6),
+	_INIT_DCS_CMD(0xBC, 0x2C),
+	_INIT_DCS_CMD(0xBD, 0x30),
+	_INIT_DCS_CMD(0xBE, 0xAA),
+	_INIT_DCS_CMD(0xBF, 0x26),
+	_INIT_DCS_CMD(0xC0, 0x62),
+	_INIT_DCS_CMD(0xC1, 0x9B),
+	_INIT_DCS_CMD(0xC2, 0xB5),
+	_INIT_DCS_CMD(0xC3, 0xCF),
+	_INIT_DCS_CMD(0xC4, 0xDB),
+	_INIT_DCS_CMD(0xC5, 0xE8),
+	_INIT_DCS_CMD(0xC6, 0xF5),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x09),
+	_INIT_DCS_CMD(0xB1, 0x04),
+	_INIT_DCS_CMD(0xB2, 0x02),
+	_INIT_DCS_CMD(0xB3, 0x16),
+	_INIT_DCS_CMD(0xB4, 0x24),
+	_INIT_DCS_CMD(0xB5, 0x3B),
+	_INIT_DCS_CMD(0xB6, 0x4F),
+	_INIT_DCS_CMD(0xB7, 0x73),
+	_INIT_DCS_CMD(0xB8, 0x99),
+	_INIT_DCS_CMD(0xB9, 0xE0),
+	_INIT_DCS_CMD(0xBA, 0x26),
+	_INIT_DCS_CMD(0xBB, 0xAD),
+	_INIT_DCS_CMD(0xBC, 0x36),
+	_INIT_DCS_CMD(0xBD, 0x3A),
+	_INIT_DCS_CMD(0xBE, 0xAE),
+	_INIT_DCS_CMD(0xBF, 0x2A),
+	_INIT_DCS_CMD(0xC0, 0x66),
+	_INIT_DCS_CMD(0xC1, 0x9E),
+	_INIT_DCS_CMD(0xC2, 0xB8),
+	_INIT_DCS_CMD(0xC3, 0xD1),
+	_INIT_DCS_CMD(0xC4, 0xDD),
+	_INIT_DCS_CMD(0xC5, 0xE9),
+	_INIT_DCS_CMD(0xC6, 0xF6),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x0A),
+	_INIT_DCS_CMD(0xB1, 0x00),
+	_INIT_DCS_CMD(0xB2, 0x02),
+	_INIT_DCS_CMD(0xB3, 0x0F),
+	_INIT_DCS_CMD(0xB4, 0x25),
+	_INIT_DCS_CMD(0xB5, 0x39),
+	_INIT_DCS_CMD(0xB6, 0x4E),
+	_INIT_DCS_CMD(0xB7, 0x72),
+	_INIT_DCS_CMD(0xB8, 0x97),
+	_INIT_DCS_CMD(0xB9, 0xDC),
+	_INIT_DCS_CMD(0xBA, 0x22),
+	_INIT_DCS_CMD(0xBB, 0xA4),
+	_INIT_DCS_CMD(0xBC, 0x2B),
+	_INIT_DCS_CMD(0xBD, 0x2F),
+	_INIT_DCS_CMD(0xBE, 0xA9),
+	_INIT_DCS_CMD(0xBF, 0x25),
+	_INIT_DCS_CMD(0xC0, 0x61),
+	_INIT_DCS_CMD(0xC1, 0x97),
+	_INIT_DCS_CMD(0xC2, 0xB2),
+	_INIT_DCS_CMD(0xC3, 0xCD),
+	_INIT_DCS_CMD(0xC4, 0xD9),
+	_INIT_DCS_CMD(0xC5, 0xE7),
+	_INIT_DCS_CMD(0xC6, 0xF4),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x0B),
+	_INIT_DCS_CMD(0xB1, 0x04),
+	_INIT_DCS_CMD(0xB2, 0x05),
+	_INIT_DCS_CMD(0xB3, 0x11),
+	_INIT_DCS_CMD(0xB4, 0x24),
+	_INIT_DCS_CMD(0xB5, 0x39),
+	_INIT_DCS_CMD(0xB6, 0x4F),
+	_INIT_DCS_CMD(0xB7, 0x72),
+	_INIT_DCS_CMD(0xB8, 0x98),
+	_INIT_DCS_CMD(0xB9, 0xDC),
+	_INIT_DCS_CMD(0xBA, 0x23),
+	_INIT_DCS_CMD(0xBB, 0xA6),
+	_INIT_DCS_CMD(0xBC, 0x2C),
+	_INIT_DCS_CMD(0xBD, 0x30),
+	_INIT_DCS_CMD(0xBE, 0xAA),
+	_INIT_DCS_CMD(0xBF, 0x26),
+	_INIT_DCS_CMD(0xC0, 0x62),
+	_INIT_DCS_CMD(0xC1, 0x9B),
+	_INIT_DCS_CMD(0xC2, 0xB5),
+	_INIT_DCS_CMD(0xC3, 0xCF),
+	_INIT_DCS_CMD(0xC4, 0xDB),
+	_INIT_DCS_CMD(0xC5, 0xE8),
+	_INIT_DCS_CMD(0xC6, 0xF5),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x0C),
+	_INIT_DCS_CMD(0xB1, 0x04),
+	_INIT_DCS_CMD(0xB2, 0x02),
+	_INIT_DCS_CMD(0xB3, 0x16),
+	_INIT_DCS_CMD(0xB4, 0x24),
+	_INIT_DCS_CMD(0xB5, 0x3B),
+	_INIT_DCS_CMD(0xB6, 0x4F),
+	_INIT_DCS_CMD(0xB7, 0x73),
+	_INIT_DCS_CMD(0xB8, 0x99),
+	_INIT_DCS_CMD(0xB9, 0xE0),
+	_INIT_DCS_CMD(0xBA, 0x26),
+	_INIT_DCS_CMD(0xBB, 0xAD),
+	_INIT_DCS_CMD(0xBC, 0x36),
+	_INIT_DCS_CMD(0xBD, 0x3A),
+	_INIT_DCS_CMD(0xBE, 0xAE),
+	_INIT_DCS_CMD(0xBF, 0x2A),
+	_INIT_DCS_CMD(0xC0, 0x66),
+	_INIT_DCS_CMD(0xC1, 0x9E),
+	_INIT_DCS_CMD(0xC2, 0xB8),
+	_INIT_DCS_CMD(0xC3, 0xD1),
+	_INIT_DCS_CMD(0xC4, 0xDD),
+	_INIT_DCS_CMD(0xC5, 0xE9),
+	_INIT_DCS_CMD(0xC6, 0xF6),
+	_INIT_DCS_CMD(0xC7, 0xFA),
+	_INIT_DCS_CMD(0xC8, 0xFC),
+	_INIT_DCS_CMD(0xC9, 0x00),
+	_INIT_DCS_CMD(0xCA, 0x00),
+	_INIT_DCS_CMD(0xCB, 0x16),
+	_INIT_DCS_CMD(0xCC, 0xAF),
+	_INIT_DCS_CMD(0xCD, 0xFF),
+	_INIT_DCS_CMD(0xCE, 0xFF),
+	_INIT_DCS_CMD(0xB0, 0x00),
+	_INIT_DCS_CMD(0xB3, 0x08),
+	_INIT_DCS_CMD(0xB0, 0x04),
+	_INIT_DCS_CMD(0xB8, 0x68),
+	_INIT_DELAY_CMD(150),
+	{},
+};
+
+static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct boe_panel, base);
+}
+
+static int boe_panel_init(struct boe_panel *boe)
+{
+	struct mipi_dsi_device *dsi = boe->dsi;
+	struct drm_panel *panel = &boe->base;
+	int err, i;
+
+	if (boe->desc->init_cmds) {
+		const struct panel_init_cmd *init_cmds = boe->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;
+			}
+
+			if (err < 0) {
+				dev_err(panel->dev,
+					"failed to write command %u\n", i);
+				return err;
+			}
+		}
+	}
+	return 0;
+}
+
+static int boe_panel_off(struct boe_panel *boe)
+{
+	struct mipi_dsi_device *dsi = boe->dsi;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int boe_panel_disable(struct drm_panel *panel)
+{
+	struct boe_panel *boe = to_boe_panel(panel);
+
+	if (!boe->enabled)
+		return 0;
+
+	backlight_disable(boe->backlight);
+
+	boe->enabled = false;
+
+	return 0;
+}
+
+static int boe_panel_unprepare(struct drm_panel *panel)
+{
+	struct boe_panel *boe = to_boe_panel(panel);
+	int ret;
+
+	if (!boe->prepared)
+		return 0;
+
+	ret = boe_panel_off(boe);
+	if (ret < 0) {
+		dev_err(panel->dev, "failed to set panel off: %d\n", ret);
+		return ret;
+	}
+
+	msleep(150);
+	if (boe->enable_gpio)
+		gpiod_set_value(boe->enable_gpio, 0);
+	usleep_range(500, 1000);
+	regulator_disable(boe->avee);
+	regulator_disable(boe->avdd);
+	usleep_range(5000, 7000);
+	regulator_disable(boe->pp1800);
+
+	boe->prepared = false;
+
+	return 0;
+}
+
+static int boe_panel_prepare(struct drm_panel *panel)
+{
+	struct boe_panel *boe = to_boe_panel(panel);
+	int ret;
+
+	if (boe->prepared)
+		return 0;
+
+	if (boe->enable_gpio) {
+		gpiod_set_value(boe->enable_gpio, 0);
+		usleep_range(1000, 1500);
+	}
+
+	ret = regulator_enable(boe->pp1800);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(3000, 5000);
+
+	ret = regulator_enable(boe->avdd);
+	if (ret < 0)
+		goto poweroff1v8;
+	ret = regulator_enable(boe->avee);
+	if (ret < 0)
+		goto poweroffavdd;
+
+	msleep(100);
+
+	if (boe->enable_gpio) {
+		gpiod_set_value(boe->enable_gpio, 1);
+		usleep_range(10000, 12000);
+	}
+
+	ret = boe_panel_init(boe);
+	if (ret < 0) {
+		dev_err(panel->dev, "failed to init panel: %d\n", ret);
+		goto poweroff;
+	}
+
+	boe->prepared = true;
+
+	return 0;
+
+poweroff:
+	regulator_disable(boe->avee);
+poweroffavdd:
+	regulator_disable(boe->avdd);
+poweroff1v8:
+	usleep_range(5000, 7000);
+	regulator_disable(boe->pp1800);
+	if (boe->enable_gpio)
+		gpiod_set_value(boe->enable_gpio, 0);
+	return ret;
+}
+
+static int boe_panel_enable(struct drm_panel *panel)
+{
+	struct boe_panel *boe = to_boe_panel(panel);
+	int ret;
+
+	if (boe->enabled)
+		return 0;
+
+	ret = backlight_enable(boe->backlight);
+	if (ret) {
+		dev_err(panel->dev, "Failed to enable backlight %d\n",
+			ret);
+		return ret;
+	}
+
+	boe->enabled = true;
+
+	return 0;
+}
+
+static const struct drm_display_mode boe_default_mode = {
+	.clock = 159425,
+	.hdisplay = 1200,
+	.hsync_start = 1200 + 100,
+	.hsync_end = 1200 + 100 + 40,
+	.htotal = 1200 + 100 + 40 + 24,
+	.vdisplay = 1920,
+	.vsync_start = 1920 + 10,
+	.vsync_end = 1920 + 10 + 14,
+	.vtotal = 1920 + 10 + 14 + 4,
+	.vrefresh = 60,
+	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct panel_desc boe_tv101wum_nl6_desc = {
+	.modes = &boe_default_mode,
+	.bpc = 8,
+	.size = {
+		.width = 216,
+		.height = 135,
+	},
+	.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 = boe_init_cmd,
+};
+
+static int boe_panel_get_modes(struct drm_panel *panel)
+{
+	struct boe_panel *boe = to_boe_panel(panel);
+	const struct drm_display_mode *m = boe->desc->modes;
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(panel->drm, m);
+	if (!mode) {
+		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+			m->hdisplay, m->vdisplay, m->vrefresh);
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+
+	drm_mode_probed_add(panel->connector, mode);
+
+	panel->connector->display_info.width_mm = boe->desc->size.width;
+	panel->connector->display_info.height_mm = boe->desc->size.height;
+	panel->connector->display_info.bpc = boe->desc->bpc;
+
+	return 1;
+}
+
+static const struct drm_panel_funcs boe_panel_funcs = {
+	.disable = boe_panel_disable,
+	.unprepare = boe_panel_unprepare,
+	.prepare = boe_panel_prepare,
+	.enable = boe_panel_enable,
+	.get_modes = boe_panel_get_modes,
+};
+
+static int boe_panel_add(struct boe_panel *boe)
+{
+	struct device *dev = &boe->dsi->dev;
+
+	boe->avdd = devm_regulator_get(dev, "avdd");
+	if (IS_ERR(boe->avdd))
+		return PTR_ERR(boe->avdd);
+
+	boe->avee = devm_regulator_get(dev, "avee");
+	if (IS_ERR(boe->avee))
+		return PTR_ERR(boe->avee);
+
+	boe->pp1800 = devm_regulator_get(dev, "pp1800");
+	if (IS_ERR(boe->pp1800))
+		return PTR_ERR(boe->pp1800);
+
+	boe->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+	if (IS_ERR(boe->enable_gpio)) {
+		dev_err(dev, "cannot get reset-gpios %ld\n",
+			PTR_ERR(boe->enable_gpio));
+		return PTR_ERR(boe->enable_gpio);
+	}
+
+	gpiod_set_value(boe->enable_gpio, 0);
+
+	boe->backlight = devm_of_find_backlight(dev);
+	if (IS_ERR(boe->backlight))
+		return PTR_ERR(boe->backlight);
+
+	drm_panel_init(&boe->base);
+	boe->base.funcs = &boe_panel_funcs;
+	boe->base.dev = &boe->dsi->dev;
+
+	return drm_panel_add(&boe->base);
+}
+
+static int boe_panel_probe(struct mipi_dsi_device *dsi)
+{
+	struct boe_panel *boe;
+	int ret;
+	const struct panel_desc *desc;
+
+	boe = devm_kzalloc(&dsi->dev, sizeof(*boe), GFP_KERNEL);
+	if (!boe)
+		return -ENOMEM;
+
+	desc = of_device_get_match_data(&dsi->dev);
+	dsi->lanes = desc->lanes;
+	dsi->format = desc->format;
+	dsi->mode_flags = desc->mode_flags;
+	boe->desc = desc;
+	boe->dsi = dsi;
+	ret = boe_panel_add(boe);
+	if (ret < 0)
+		return ret;
+
+	mipi_dsi_set_drvdata(dsi, boe);
+
+	return mipi_dsi_attach(dsi);
+}
+
+static int boe_panel_remove(struct mipi_dsi_device *dsi)
+{
+	struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = boe_panel_disable(&boe->base);
+	if (ret < 0)
+		dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
+
+	if (boe->base.dev)
+		drm_panel_remove(&boe->base);
+
+	return 0;
+}
+
+static void boe_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
+
+	boe_panel_disable(&boe->base);
+}
+
+static const struct of_device_id boe_of_match[] = {
+	{ .compatible = "boe,tv101wum-nl6",
+	  .data = &boe_tv101wum_nl6_desc
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, boe_of_match);
+
+static struct mipi_dsi_driver boe_panel_driver = {
+	.driver = {
+		.name = "panel-boe-tv101wum-nl6",
+		.of_match_table = boe_of_match,
+	},
+	.probe = boe_panel_probe,
+	.remove = boe_panel_remove,
+	.shutdown = boe_panel_shutdown,
+};
+module_mipi_dsi_driver(boe_panel_driver);
+
+MODULE_AUTHOR("Jitao Shi <jitao.shi@mediatek.com>");
+MODULE_DESCRIPTION("BOE tv101wum-nl6 1200x1920 video mode panel driver");
+MODULE_LICENSE("GPL v2");

Comments

On Mon, Jun 24, 2019 at 2:04 PM Jitao Shi <jitao.shi@mediatek.com> wrote:
>
> Add driver for BOE tv101wum-nl6 panel is a 10.1" 1200x1920 panel.
>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> ---
>  drivers/gpu/drm/panel/Kconfig                 |  10 +
>  drivers/gpu/drm/panel/Makefile                |   1 +
>  .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 715 ++++++++++++++++++
>  3 files changed, 726 insertions(+)
>  create mode 100644 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index e36dbb4df867..2b055ce0700b 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -17,6 +17,15 @@ config DRM_PANEL_ARM_VERSATILE
>           reference designs. The panel is detected using special registers
>           in the Versatile family syscon registers.
>
> +config DRM_PANEL_BOE_TV101WUM_NL6
> +       tristate "BOE TV101WUM 1200x1920 panel"
> +       depends on OF
> +       depends on DRM_MIPI_DSI
> +       depends on BACKLIGHT_CLASS_DEVICE
> +       help
> +         Say Y here if you want to support for BOE TV101WUM WUXGA PANEL
> +         DSI Video Mode panel
> +
>  config DRM_PANEL_LVDS
>         tristate "Generic LVDS panel driver"
>         depends on OF
> @@ -272,4 +281,5 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
>         help
>           Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
>           Video Mode panel
> +

Drop this change.

>  endmenu
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index 78e3dc376bdd..8d009223c44e 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -1,5 +1,6 @@
>  # SPDX-License-Identifier: GPL-2.0
>  obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o
> +obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o
>  obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
>  obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
>  obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
> diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> new file mode 100644
> index 000000000000..6e06c8506623
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> @@ -0,0 +1,715 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2018 MediaTek Inc.
> + * Author: Jitao Shi <jitao.shi@mediatek.com>
> + */
> +
> +#include <linux/backlight.h>
> +#include <linux/delay.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/regulator/consumer.h>
> +
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_panel.h>
> +
> +#include <video/mipi_display.h>
> +
> +struct panel_desc {
> +       const struct drm_display_mode *modes;
> +       unsigned int bpc;
> +
> +       /**
> +        * @width: width (in millimeters) of the panel's active display area
> +        * @height: height (in millimeters) of the panel's active display area
> +        */
> +       struct {
> +               unsigned int width;
> +               unsigned int height;
> +       } size;
> +
> +       unsigned long mode_flags;
> +       enum mipi_dsi_pixel_format format;
> +       const struct panel_init_cmd *init_cmds;
> +       unsigned int lanes;
> +};
> +
> +struct boe_panel {
> +       struct drm_panel base;
> +       struct mipi_dsi_device *dsi;
> +
> +       const struct panel_desc *desc;
> +
> +       struct backlight_device *backlight;
> +       struct regulator *pp1800;
> +       struct regulator *avee;
> +       struct regulator *avdd;
> +       struct gpio_desc *enable_gpio;
> +
> +       bool prepared;
> +       bool enabled;
> +
> +       const struct drm_display_mode *mode;
> +};
> +
> +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__} }
> +
> +static const struct panel_init_cmd boe_init_cmd[] = {
> +       _INIT_DELAY_CMD(24),
> +       _INIT_DCS_CMD(0xB0, 0x05),
> +       _INIT_DCS_CMD(0xB1, 0xE5),
> +       _INIT_DCS_CMD(0xB3, 0x52),
> +       _INIT_DCS_CMD(0xB0, 0x00),
> +       _INIT_DCS_CMD(0xB3, 0x88),
> +       _INIT_DCS_CMD(0xB0, 0x04),
> +       _INIT_DCS_CMD(0xB8, 0x00),
> +       _INIT_DCS_CMD(0xB0, 0x00),
> +       _INIT_DCS_CMD(0xB6, 0x03),
> +       _INIT_DCS_CMD(0xBA, 0x8B),
> +       _INIT_DCS_CMD(0xBF, 0x1A),
> +       _INIT_DCS_CMD(0xC0, 0x0F),
> +       _INIT_DCS_CMD(0xC2, 0x0C),
> +       _INIT_DCS_CMD(0xC3, 0x02),
> +       _INIT_DCS_CMD(0xC4, 0x0C),
> +       _INIT_DCS_CMD(0xC5, 0x02),
> +       _INIT_DCS_CMD(0xB0, 0x01),
> +       _INIT_DCS_CMD(0xE0, 0x26),
> +       _INIT_DCS_CMD(0xE1, 0x26),
> +       _INIT_DCS_CMD(0xDC, 0x00),
> +       _INIT_DCS_CMD(0xDD, 0x00),
> +       _INIT_DCS_CMD(0xCC, 0x26),
> +       _INIT_DCS_CMD(0xCD, 0x26),
> +       _INIT_DCS_CMD(0xC8, 0x00),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xD2, 0x03),
> +       _INIT_DCS_CMD(0xD3, 0x03),
> +       _INIT_DCS_CMD(0xE6, 0x04),
> +       _INIT_DCS_CMD(0xE7, 0x04),
> +       _INIT_DCS_CMD(0xC4, 0x09),
> +       _INIT_DCS_CMD(0xC5, 0x09),
> +       _INIT_DCS_CMD(0xD8, 0x0A),
> +       _INIT_DCS_CMD(0xD9, 0x0A),
> +       _INIT_DCS_CMD(0xC2, 0x0B),
> +       _INIT_DCS_CMD(0xC3, 0x0B),
> +       _INIT_DCS_CMD(0xD6, 0x0C),
> +       _INIT_DCS_CMD(0xD7, 0x0C),
> +       _INIT_DCS_CMD(0xC0, 0x05),
> +       _INIT_DCS_CMD(0xC1, 0x05),
> +       _INIT_DCS_CMD(0xD4, 0x06),
> +       _INIT_DCS_CMD(0xD5, 0x06),
> +       _INIT_DCS_CMD(0xCA, 0x07),
> +       _INIT_DCS_CMD(0xCB, 0x07),
> +       _INIT_DCS_CMD(0xDE, 0x08),
> +       _INIT_DCS_CMD(0xDF, 0x08),
> +       _INIT_DCS_CMD(0xB0, 0x02),
> +       _INIT_DCS_CMD(0xC0, 0x00),
> +       _INIT_DCS_CMD(0xC1, 0x0D),
> +       _INIT_DCS_CMD(0xC2, 0x17),
> +       _INIT_DCS_CMD(0xC3, 0x26),
> +       _INIT_DCS_CMD(0xC4, 0x31),
> +       _INIT_DCS_CMD(0xC5, 0x1C),
> +       _INIT_DCS_CMD(0xC6, 0x2C),
> +       _INIT_DCS_CMD(0xC7, 0x33),
> +       _INIT_DCS_CMD(0xC8, 0x31),
> +       _INIT_DCS_CMD(0xC9, 0x37),
> +       _INIT_DCS_CMD(0xCA, 0x37),
> +       _INIT_DCS_CMD(0xCB, 0x37),
> +       _INIT_DCS_CMD(0xCC, 0x39),
> +       _INIT_DCS_CMD(0xCD, 0x2E),
> +       _INIT_DCS_CMD(0xCE, 0x2F),
> +       _INIT_DCS_CMD(0xCF, 0x2F),
> +       _INIT_DCS_CMD(0xD0, 0x07),
> +       _INIT_DCS_CMD(0xD2, 0x00),
> +       _INIT_DCS_CMD(0xD3, 0x0D),
> +       _INIT_DCS_CMD(0xD4, 0x17),
> +       _INIT_DCS_CMD(0xD5, 0x26),
> +       _INIT_DCS_CMD(0xD6, 0x31),
> +       _INIT_DCS_CMD(0xD7, 0x3F),
> +       _INIT_DCS_CMD(0xD8, 0x3F),
> +       _INIT_DCS_CMD(0xD9, 0x3F),
> +       _INIT_DCS_CMD(0xDA, 0x3F),
> +       _INIT_DCS_CMD(0xDB, 0x37),
> +       _INIT_DCS_CMD(0xDC, 0x37),
> +       _INIT_DCS_CMD(0xDD, 0x37),
> +       _INIT_DCS_CMD(0xDE, 0x39),
> +       _INIT_DCS_CMD(0xDF, 0x2E),
> +       _INIT_DCS_CMD(0xE0, 0x2F),
> +       _INIT_DCS_CMD(0xE1, 0x2F),
> +       _INIT_DCS_CMD(0xE2, 0x07),
> +       _INIT_DCS_CMD(0xB0, 0x03),
> +       _INIT_DCS_CMD(0xC8, 0x0B),
> +       _INIT_DCS_CMD(0xC9, 0x07),
> +       _INIT_DCS_CMD(0xC3, 0x00),
> +       _INIT_DCS_CMD(0xE7, 0x00),
> +       _INIT_DCS_CMD(0xC5, 0x2A),
> +       _INIT_DCS_CMD(0xDE, 0x2A),
> +       _INIT_DCS_CMD(0xCA, 0x43),
> +       _INIT_DCS_CMD(0xC9, 0x07),
> +       _INIT_DCS_CMD(0xE4, 0xC0),
> +       _INIT_DCS_CMD(0xE5, 0x0D),
> +       _INIT_DCS_CMD(0xCB, 0x00),
> +       _INIT_DCS_CMD(0xB0, 0x06),
> +       _INIT_DCS_CMD(0xB8, 0xA5),
> +       _INIT_DCS_CMD(0xC0, 0xA5),
> +       _INIT_DCS_CMD(0xC7, 0x0F),
> +       _INIT_DCS_CMD(0xD5, 0x32),
> +       _INIT_DCS_CMD(0xB8, 0x00),
> +       _INIT_DCS_CMD(0xC0, 0x00),
> +       _INIT_DCS_CMD(0xBC, 0x00),
> +       _INIT_DCS_CMD(0xB0, 0x07),
> +       _INIT_DCS_CMD(0xB1, 0x00),
> +       _INIT_DCS_CMD(0xB2, 0x02),
> +       _INIT_DCS_CMD(0xB3, 0x0F),
> +       _INIT_DCS_CMD(0xB4, 0x25),
> +       _INIT_DCS_CMD(0xB5, 0x39),
> +       _INIT_DCS_CMD(0xB6, 0x4E),
> +       _INIT_DCS_CMD(0xB7, 0x72),
> +       _INIT_DCS_CMD(0xB8, 0x97),
> +       _INIT_DCS_CMD(0xB9, 0xDC),
> +       _INIT_DCS_CMD(0xBA, 0x22),
> +       _INIT_DCS_CMD(0xBB, 0xA4),
> +       _INIT_DCS_CMD(0xBC, 0x2B),
> +       _INIT_DCS_CMD(0xBD, 0x2F),
> +       _INIT_DCS_CMD(0xBE, 0xA9),
> +       _INIT_DCS_CMD(0xBF, 0x25),
> +       _INIT_DCS_CMD(0xC0, 0x61),
> +       _INIT_DCS_CMD(0xC1, 0x97),
> +       _INIT_DCS_CMD(0xC2, 0xB2),
> +       _INIT_DCS_CMD(0xC3, 0xCD),
> +       _INIT_DCS_CMD(0xC4, 0xD9),
> +       _INIT_DCS_CMD(0xC5, 0xE7),
> +       _INIT_DCS_CMD(0xC6, 0xF4),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x08),
> +       _INIT_DCS_CMD(0xB1, 0x04),
> +       _INIT_DCS_CMD(0xB2, 0x05),
> +       _INIT_DCS_CMD(0xB3, 0x11),
> +       _INIT_DCS_CMD(0xB4, 0x24),
> +       _INIT_DCS_CMD(0xB5, 0x39),
> +       _INIT_DCS_CMD(0xB6, 0x4F),
> +       _INIT_DCS_CMD(0xB7, 0x72),
> +       _INIT_DCS_CMD(0xB8, 0x98),
> +       _INIT_DCS_CMD(0xB9, 0xDC),
> +       _INIT_DCS_CMD(0xBA, 0x23),
> +       _INIT_DCS_CMD(0xBB, 0xA6),
> +       _INIT_DCS_CMD(0xBC, 0x2C),
> +       _INIT_DCS_CMD(0xBD, 0x30),
> +       _INIT_DCS_CMD(0xBE, 0xAA),
> +       _INIT_DCS_CMD(0xBF, 0x26),
> +       _INIT_DCS_CMD(0xC0, 0x62),
> +       _INIT_DCS_CMD(0xC1, 0x9B),
> +       _INIT_DCS_CMD(0xC2, 0xB5),
> +       _INIT_DCS_CMD(0xC3, 0xCF),
> +       _INIT_DCS_CMD(0xC4, 0xDB),
> +       _INIT_DCS_CMD(0xC5, 0xE8),
> +       _INIT_DCS_CMD(0xC6, 0xF5),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x09),
> +       _INIT_DCS_CMD(0xB1, 0x04),
> +       _INIT_DCS_CMD(0xB2, 0x02),
> +       _INIT_DCS_CMD(0xB3, 0x16),
> +       _INIT_DCS_CMD(0xB4, 0x24),
> +       _INIT_DCS_CMD(0xB5, 0x3B),
> +       _INIT_DCS_CMD(0xB6, 0x4F),
> +       _INIT_DCS_CMD(0xB7, 0x73),
> +       _INIT_DCS_CMD(0xB8, 0x99),
> +       _INIT_DCS_CMD(0xB9, 0xE0),
> +       _INIT_DCS_CMD(0xBA, 0x26),
> +       _INIT_DCS_CMD(0xBB, 0xAD),
> +       _INIT_DCS_CMD(0xBC, 0x36),
> +       _INIT_DCS_CMD(0xBD, 0x3A),
> +       _INIT_DCS_CMD(0xBE, 0xAE),
> +       _INIT_DCS_CMD(0xBF, 0x2A),
> +       _INIT_DCS_CMD(0xC0, 0x66),
> +       _INIT_DCS_CMD(0xC1, 0x9E),
> +       _INIT_DCS_CMD(0xC2, 0xB8),
> +       _INIT_DCS_CMD(0xC3, 0xD1),
> +       _INIT_DCS_CMD(0xC4, 0xDD),
> +       _INIT_DCS_CMD(0xC5, 0xE9),
> +       _INIT_DCS_CMD(0xC6, 0xF6),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x0A),
> +       _INIT_DCS_CMD(0xB1, 0x00),
> +       _INIT_DCS_CMD(0xB2, 0x02),
> +       _INIT_DCS_CMD(0xB3, 0x0F),
> +       _INIT_DCS_CMD(0xB4, 0x25),
> +       _INIT_DCS_CMD(0xB5, 0x39),
> +       _INIT_DCS_CMD(0xB6, 0x4E),
> +       _INIT_DCS_CMD(0xB7, 0x72),
> +       _INIT_DCS_CMD(0xB8, 0x97),
> +       _INIT_DCS_CMD(0xB9, 0xDC),
> +       _INIT_DCS_CMD(0xBA, 0x22),
> +       _INIT_DCS_CMD(0xBB, 0xA4),
> +       _INIT_DCS_CMD(0xBC, 0x2B),
> +       _INIT_DCS_CMD(0xBD, 0x2F),
> +       _INIT_DCS_CMD(0xBE, 0xA9),
> +       _INIT_DCS_CMD(0xBF, 0x25),
> +       _INIT_DCS_CMD(0xC0, 0x61),
> +       _INIT_DCS_CMD(0xC1, 0x97),
> +       _INIT_DCS_CMD(0xC2, 0xB2),
> +       _INIT_DCS_CMD(0xC3, 0xCD),
> +       _INIT_DCS_CMD(0xC4, 0xD9),
> +       _INIT_DCS_CMD(0xC5, 0xE7),
> +       _INIT_DCS_CMD(0xC6, 0xF4),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x0B),
> +       _INIT_DCS_CMD(0xB1, 0x04),
> +       _INIT_DCS_CMD(0xB2, 0x05),
> +       _INIT_DCS_CMD(0xB3, 0x11),
> +       _INIT_DCS_CMD(0xB4, 0x24),
> +       _INIT_DCS_CMD(0xB5, 0x39),
> +       _INIT_DCS_CMD(0xB6, 0x4F),
> +       _INIT_DCS_CMD(0xB7, 0x72),
> +       _INIT_DCS_CMD(0xB8, 0x98),
> +       _INIT_DCS_CMD(0xB9, 0xDC),
> +       _INIT_DCS_CMD(0xBA, 0x23),
> +       _INIT_DCS_CMD(0xBB, 0xA6),
> +       _INIT_DCS_CMD(0xBC, 0x2C),
> +       _INIT_DCS_CMD(0xBD, 0x30),
> +       _INIT_DCS_CMD(0xBE, 0xAA),
> +       _INIT_DCS_CMD(0xBF, 0x26),
> +       _INIT_DCS_CMD(0xC0, 0x62),
> +       _INIT_DCS_CMD(0xC1, 0x9B),
> +       _INIT_DCS_CMD(0xC2, 0xB5),
> +       _INIT_DCS_CMD(0xC3, 0xCF),
> +       _INIT_DCS_CMD(0xC4, 0xDB),
> +       _INIT_DCS_CMD(0xC5, 0xE8),
> +       _INIT_DCS_CMD(0xC6, 0xF5),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x0C),
> +       _INIT_DCS_CMD(0xB1, 0x04),
> +       _INIT_DCS_CMD(0xB2, 0x02),
> +       _INIT_DCS_CMD(0xB3, 0x16),
> +       _INIT_DCS_CMD(0xB4, 0x24),
> +       _INIT_DCS_CMD(0xB5, 0x3B),
> +       _INIT_DCS_CMD(0xB6, 0x4F),
> +       _INIT_DCS_CMD(0xB7, 0x73),
> +       _INIT_DCS_CMD(0xB8, 0x99),
> +       _INIT_DCS_CMD(0xB9, 0xE0),
> +       _INIT_DCS_CMD(0xBA, 0x26),
> +       _INIT_DCS_CMD(0xBB, 0xAD),
> +       _INIT_DCS_CMD(0xBC, 0x36),
> +       _INIT_DCS_CMD(0xBD, 0x3A),
> +       _INIT_DCS_CMD(0xBE, 0xAE),
> +       _INIT_DCS_CMD(0xBF, 0x2A),
> +       _INIT_DCS_CMD(0xC0, 0x66),
> +       _INIT_DCS_CMD(0xC1, 0x9E),
> +       _INIT_DCS_CMD(0xC2, 0xB8),
> +       _INIT_DCS_CMD(0xC3, 0xD1),
> +       _INIT_DCS_CMD(0xC4, 0xDD),
> +       _INIT_DCS_CMD(0xC5, 0xE9),
> +       _INIT_DCS_CMD(0xC6, 0xF6),
> +       _INIT_DCS_CMD(0xC7, 0xFA),
> +       _INIT_DCS_CMD(0xC8, 0xFC),
> +       _INIT_DCS_CMD(0xC9, 0x00),
> +       _INIT_DCS_CMD(0xCA, 0x00),
> +       _INIT_DCS_CMD(0xCB, 0x16),
> +       _INIT_DCS_CMD(0xCC, 0xAF),
> +       _INIT_DCS_CMD(0xCD, 0xFF),
> +       _INIT_DCS_CMD(0xCE, 0xFF),
> +       _INIT_DCS_CMD(0xB0, 0x00),
> +       _INIT_DCS_CMD(0xB3, 0x08),
> +       _INIT_DCS_CMD(0xB0, 0x04),
> +       _INIT_DCS_CMD(0xB8, 0x68),
> +       _INIT_DELAY_CMD(150),
> +       {},
> +};
> +
> +static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
> +{
> +       return container_of(panel, struct boe_panel, base);
> +}
> +
> +static int boe_panel_init(struct boe_panel *boe)
> +{
> +       struct mipi_dsi_device *dsi = boe->dsi;
> +       struct drm_panel *panel = &boe->base;
> +       int err, i;
> +
> +       if (boe->desc->init_cmds) {
> +               const struct panel_init_cmd *init_cmds = boe->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;
> +                       }
> +
> +                       if (err < 0) {
> +                               dev_err(panel->dev,
> +                                       "failed to write command %u\n", i);
> +                               return err;
> +                       }
> +               }
> +       }
> +       return 0;
> +}
> +
> +static int boe_panel_off(struct boe_panel *boe)
> +{
> +       struct mipi_dsi_device *dsi = boe->dsi;
> +       int ret;
> +
> +       dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
> +
> +       ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> +       if (ret < 0)
> +               return ret;
> +
> +       return 0;
> +}
> +
> +static int boe_panel_disable(struct drm_panel *panel)
> +{
> +       struct boe_panel *boe = to_boe_panel(panel);
> +
> +       if (!boe->enabled)
> +               return 0;
> +
> +       backlight_disable(boe->backlight);
> +
> +       boe->enabled = false;
> +
> +       return 0;
> +}
> +
> +static int boe_panel_unprepare(struct drm_panel *panel)
> +{
> +       struct boe_panel *boe = to_boe_panel(panel);
> +       int ret;
> +
> +       if (!boe->prepared)
> +               return 0;
> +
> +       ret = boe_panel_off(boe);
> +       if (ret < 0) {
> +               dev_err(panel->dev, "failed to set panel off: %d\n", ret);
> +               return ret;
> +       }
> +
> +       msleep(150);
> +       if (boe->enable_gpio)
> +               gpiod_set_value(boe->enable_gpio, 0);
> +       usleep_range(500, 1000);
> +       regulator_disable(boe->avee);
> +       regulator_disable(boe->avdd);
> +       usleep_range(5000, 7000);
> +       regulator_disable(boe->pp1800);
> +
> +       boe->prepared = false;
> +
> +       return 0;
> +}
> +
> +static int boe_panel_prepare(struct drm_panel *panel)
> +{
> +       struct boe_panel *boe = to_boe_panel(panel);
> +       int ret;
> +
> +       if (boe->prepared)
> +               return 0;
> +
> +       if (boe->enable_gpio) {
> +               gpiod_set_value(boe->enable_gpio, 0);
> +               usleep_range(1000, 1500);
> +       }
> +
> +       ret = regulator_enable(boe->pp1800);
> +       if (ret < 0)
> +               return ret;
> +
> +       usleep_range(3000, 5000);
> +
> +       ret = regulator_enable(boe->avdd);
> +       if (ret < 0)
> +               goto poweroff1v8;
> +       ret = regulator_enable(boe->avee);
> +       if (ret < 0)
> +               goto poweroffavdd;
> +
> +       msleep(100);
> +
> +       if (boe->enable_gpio) {
> +               gpiod_set_value(boe->enable_gpio, 1);
> +               usleep_range(10000, 12000);
> +       }
> +
> +       ret = boe_panel_init(boe);
> +       if (ret < 0) {
> +               dev_err(panel->dev, "failed to init panel: %d\n", ret);
> +               goto poweroff;
> +       }
> +
> +       boe->prepared = true;
> +
> +       return 0;
> +
> +poweroff:
> +       regulator_disable(boe->avee);
> +poweroffavdd:
> +       regulator_disable(boe->avdd);
> +poweroff1v8:
> +       usleep_range(5000, 7000);
> +       regulator_disable(boe->pp1800);
> +       if (boe->enable_gpio)
> +               gpiod_set_value(boe->enable_gpio, 0);
> +       return ret;
> +}
> +
> +static int boe_panel_enable(struct drm_panel *panel)
> +{
> +       struct boe_panel *boe = to_boe_panel(panel);
> +       int ret;
> +
> +       if (boe->enabled)
> +               return 0;
> +
> +       ret = backlight_enable(boe->backlight);
> +       if (ret) {
> +               dev_err(panel->dev, "Failed to enable backlight %d\n",
> +                       ret);
> +               return ret;
> +       }
> +
> +       boe->enabled = true;
> +
> +       return 0;
> +}
> +
> +static const struct drm_display_mode boe_default_mode = {
> +       .clock = 159425,
> +       .hdisplay = 1200,
> +       .hsync_start = 1200 + 100,
> +       .hsync_end = 1200 + 100 + 40,
> +       .htotal = 1200 + 100 + 40 + 24,
> +       .vdisplay = 1920,
> +       .vsync_start = 1920 + 10,
> +       .vsync_end = 1920 + 10 + 14,
> +       .vtotal = 1920 + 10 + 14 + 4,
> +       .vrefresh = 60,
> +       .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> +};
> +
> +static const struct panel_desc boe_tv101wum_nl6_desc = {
> +       .modes = &boe_default_mode,
> +       .bpc = 8,
> +       .size = {
> +               .width = 216,
> +               .height = 135,
> +       },
> +       .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 = boe_init_cmd,
> +};
> +
> +static int boe_panel_get_modes(struct drm_panel *panel)
> +{
> +       struct boe_panel *boe = to_boe_panel(panel);
> +       const struct drm_display_mode *m = boe->desc->modes;
> +       struct drm_display_mode *mode;
> +
> +       mode = drm_mode_duplicate(panel->drm, m);
> +       if (!mode) {
> +               dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
> +                       m->hdisplay, m->vdisplay, m->vrefresh);
> +               return -ENOMEM;
> +       }
> +
> +       drm_mode_set_name(mode);
> +

Sam suggested adding this here:
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;

> +       drm_mode_probed_add(panel->connector, mode);
> +
> +       panel->connector->display_info.width_mm = boe->desc->size.width;
> +       panel->connector->display_info.height_mm = boe->desc->size.height;
> +       panel->connector->display_info.bpc = boe->desc->bpc;
> +
> +       return 1;
> +}
> +
> +static const struct drm_panel_funcs boe_panel_funcs = {
> +       .disable = boe_panel_disable,
> +       .unprepare = boe_panel_unprepare,
> +       .prepare = boe_panel_prepare,
> +       .enable = boe_panel_enable,
> +       .get_modes = boe_panel_get_modes,
> +};
> +
> +static int boe_panel_add(struct boe_panel *boe)
> +{
> +       struct device *dev = &boe->dsi->dev;
> +
> +       boe->avdd = devm_regulator_get(dev, "avdd");
> +       if (IS_ERR(boe->avdd))
> +               return PTR_ERR(boe->avdd);
> +
> +       boe->avee = devm_regulator_get(dev, "avee");
> +       if (IS_ERR(boe->avee))
> +               return PTR_ERR(boe->avee);
> +
> +       boe->pp1800 = devm_regulator_get(dev, "pp1800");
> +       if (IS_ERR(boe->pp1800))
> +               return PTR_ERR(boe->pp1800);
> +
> +       boe->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
> +       if (IS_ERR(boe->enable_gpio)) {
> +               dev_err(dev, "cannot get reset-gpios %ld\n",
> +                       PTR_ERR(boe->enable_gpio));
> +               return PTR_ERR(boe->enable_gpio);
> +       }
> +
> +       gpiod_set_value(boe->enable_gpio, 0);
> +
> +       boe->backlight = devm_of_find_backlight(dev);
> +       if (IS_ERR(boe->backlight))
> +               return PTR_ERR(boe->backlight);
> +
> +       drm_panel_init(&boe->base);
> +       boe->base.funcs = &boe_panel_funcs;
> +       boe->base.dev = &boe->dsi->dev;
> +
> +       return drm_panel_add(&boe->base);
> +}
> +
> +static int boe_panel_probe(struct mipi_dsi_device *dsi)
> +{
> +       struct boe_panel *boe;
> +       int ret;
> +       const struct panel_desc *desc;
> +
> +       boe = devm_kzalloc(&dsi->dev, sizeof(*boe), GFP_KERNEL);
> +       if (!boe)
> +               return -ENOMEM;
> +
> +       desc = of_device_get_match_data(&dsi->dev);
> +       dsi->lanes = desc->lanes;
> +       dsi->format = desc->format;
> +       dsi->mode_flags = desc->mode_flags;
> +       boe->desc = desc;
> +       boe->dsi = dsi;
> +       ret = boe_panel_add(boe);
> +       if (ret < 0)
> +               return ret;
> +
> +       mipi_dsi_set_drvdata(dsi, boe);
> +
> +       return mipi_dsi_attach(dsi);
> +}
> +
> +static int boe_panel_remove(struct mipi_dsi_device *dsi)
> +{
> +       struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
> +       int ret;
> +
> +       ret = boe_panel_disable(&boe->base);
> +       if (ret < 0)
> +               dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
> +
> +       ret = mipi_dsi_detach(dsi);
> +       if (ret < 0)
> +               dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
> +
> +       if (boe->base.dev)
> +               drm_panel_remove(&boe->base);
> +
> +       return 0;
> +}
> +
> +static void boe_panel_shutdown(struct mipi_dsi_device *dsi)
> +{
> +       struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
> +
> +       boe_panel_disable(&boe->base);
> +}
> +
> +static const struct of_device_id boe_of_match[] = {
> +       { .compatible = "boe,tv101wum-nl6",
> +         .data = &boe_tv101wum_nl6_desc
> +       },
> +       { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, boe_of_match);
> +
> +static struct mipi_dsi_driver boe_panel_driver = {
> +       .driver = {
> +               .name = "panel-boe-tv101wum-nl6",
> +               .of_match_table = boe_of_match,
> +       },
> +       .probe = boe_panel_probe,
> +       .remove = boe_panel_remove,
> +       .shutdown = boe_panel_shutdown,
> +};
> +module_mipi_dsi_driver(boe_panel_driver);
> +
> +MODULE_AUTHOR("Jitao Shi <jitao.shi@mediatek.com>");
> +MODULE_DESCRIPTION("BOE tv101wum-nl6 1200x1920 video mode panel driver");
> +MODULE_LICENSE("GPL v2");
> --
> 2.21.0
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
On Mon, Jun 24, 2019 at 4:25 PM Nicolas Boichat <drinkcat@chromium.org> wrote:
>
> On Mon, Jun 24, 2019 at 2:04 PM Jitao Shi <jitao.shi@mediatek.com> wrote:
> >
> > Add driver for BOE tv101wum-nl6 panel is a 10.1" 1200x1920 panel.
> >
> > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> > ---
> >  drivers/gpu/drm/panel/Kconfig                 |  10 +
> >  drivers/gpu/drm/panel/Makefile                |   1 +
> >  .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 715 ++++++++++++++++++
> >  3 files changed, 726 insertions(+)
> >  create mode 100644 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> >
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index e36dbb4df867..2b055ce0700b 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -17,6 +17,15 @@ config DRM_PANEL_ARM_VERSATILE
> >           reference designs. The panel is detected using special registers
> >           in the Versatile family syscon registers.
> >
> > +config DRM_PANEL_BOE_TV101WUM_NL6
> > +       tristate "BOE TV101WUM 1200x1920 panel"
> > +       depends on OF
> > +       depends on DRM_MIPI_DSI
> > +       depends on BACKLIGHT_CLASS_DEVICE
> > +       help
> > +         Say Y here if you want to support for BOE TV101WUM WUXGA PANEL
> > +         DSI Video Mode panel
> > +
> >  config DRM_PANEL_LVDS
> >         tristate "Generic LVDS panel driver"
> >         depends on OF
> > @@ -272,4 +281,5 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
> >         help
> >           Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
> >           Video Mode panel
> > +
>
> Drop this change.
>
> >  endmenu
> > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> > index 78e3dc376bdd..8d009223c44e 100644
> > --- a/drivers/gpu/drm/panel/Makefile
> > +++ b/drivers/gpu/drm/panel/Makefile
> > @@ -1,5 +1,6 @@
> >  # SPDX-License-Identifier: GPL-2.0
> >  obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o
> > +obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o
> >  obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
> >  obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
> >  obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
> > diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> > new file mode 100644
> > index 000000000000..6e06c8506623
> > --- /dev/null
> > +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> > @@ -0,0 +1,715 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Copyright (c) 2018 MediaTek Inc.
> > + * Author: Jitao Shi <jitao.shi@mediatek.com>
> > + */
> > +
> > +#include <linux/backlight.h>
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/of_device.h>
> > +#include <linux/regulator/consumer.h>
> > +
> > +#include <drm/drm_crtc.h>
> > +#include <drm/drm_mipi_dsi.h>
> > +#include <drm/drm_panel.h>
> > +
> > +#include <video/mipi_display.h>
> > +
> > +struct panel_desc {
> > +       const struct drm_display_mode *modes;
> > +       unsigned int bpc;
> > +
> > +       /**
> > +        * @width: width (in millimeters) of the panel's active display area
> > +        * @height: height (in millimeters) of the panel's active display area
> > +        */
> > +       struct {
> > +               unsigned int width;
> > +               unsigned int height;
> > +       } size;
> > +
> > +       unsigned long mode_flags;
> > +       enum mipi_dsi_pixel_format format;
> > +       const struct panel_init_cmd *init_cmds;
> > +       unsigned int lanes;
> > +};
> > +
> > +struct boe_panel {
> > +       struct drm_panel base;
> > +       struct mipi_dsi_device *dsi;
> > +
> > +       const struct panel_desc *desc;
> > +
> > +       struct backlight_device *backlight;
> > +       struct regulator *pp1800;
> > +       struct regulator *avee;
> > +       struct regulator *avdd;
> > +       struct gpio_desc *enable_gpio;
> > +
> > +       bool prepared;
> > +       bool enabled;
> > +
> > +       const struct drm_display_mode *mode;
> > +};
> > +
> > +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__} }
> > +
> > +static const struct panel_init_cmd boe_init_cmd[] = {
> > +       _INIT_DELAY_CMD(24),
> > +       _INIT_DCS_CMD(0xB0, 0x05),
> > +       _INIT_DCS_CMD(0xB1, 0xE5),
> > +       _INIT_DCS_CMD(0xB3, 0x52),
> > +       _INIT_DCS_CMD(0xB0, 0x00),
> > +       _INIT_DCS_CMD(0xB3, 0x88),
> > +       _INIT_DCS_CMD(0xB0, 0x04),
> > +       _INIT_DCS_CMD(0xB8, 0x00),
> > +       _INIT_DCS_CMD(0xB0, 0x00),
> > +       _INIT_DCS_CMD(0xB6, 0x03),
> > +       _INIT_DCS_CMD(0xBA, 0x8B),
> > +       _INIT_DCS_CMD(0xBF, 0x1A),
> > +       _INIT_DCS_CMD(0xC0, 0x0F),
> > +       _INIT_DCS_CMD(0xC2, 0x0C),
> > +       _INIT_DCS_CMD(0xC3, 0x02),
> > +       _INIT_DCS_CMD(0xC4, 0x0C),
> > +       _INIT_DCS_CMD(0xC5, 0x02),
> > +       _INIT_DCS_CMD(0xB0, 0x01),
> > +       _INIT_DCS_CMD(0xE0, 0x26),
> > +       _INIT_DCS_CMD(0xE1, 0x26),
> > +       _INIT_DCS_CMD(0xDC, 0x00),
> > +       _INIT_DCS_CMD(0xDD, 0x00),
> > +       _INIT_DCS_CMD(0xCC, 0x26),
> > +       _INIT_DCS_CMD(0xCD, 0x26),
> > +       _INIT_DCS_CMD(0xC8, 0x00),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xD2, 0x03),
> > +       _INIT_DCS_CMD(0xD3, 0x03),
> > +       _INIT_DCS_CMD(0xE6, 0x04),
> > +       _INIT_DCS_CMD(0xE7, 0x04),
> > +       _INIT_DCS_CMD(0xC4, 0x09),
> > +       _INIT_DCS_CMD(0xC5, 0x09),
> > +       _INIT_DCS_CMD(0xD8, 0x0A),
> > +       _INIT_DCS_CMD(0xD9, 0x0A),
> > +       _INIT_DCS_CMD(0xC2, 0x0B),
> > +       _INIT_DCS_CMD(0xC3, 0x0B),
> > +       _INIT_DCS_CMD(0xD6, 0x0C),
> > +       _INIT_DCS_CMD(0xD7, 0x0C),
> > +       _INIT_DCS_CMD(0xC0, 0x05),
> > +       _INIT_DCS_CMD(0xC1, 0x05),
> > +       _INIT_DCS_CMD(0xD4, 0x06),
> > +       _INIT_DCS_CMD(0xD5, 0x06),
> > +       _INIT_DCS_CMD(0xCA, 0x07),
> > +       _INIT_DCS_CMD(0xCB, 0x07),
> > +       _INIT_DCS_CMD(0xDE, 0x08),
> > +       _INIT_DCS_CMD(0xDF, 0x08),
> > +       _INIT_DCS_CMD(0xB0, 0x02),
> > +       _INIT_DCS_CMD(0xC0, 0x00),
> > +       _INIT_DCS_CMD(0xC1, 0x0D),
> > +       _INIT_DCS_CMD(0xC2, 0x17),
> > +       _INIT_DCS_CMD(0xC3, 0x26),
> > +       _INIT_DCS_CMD(0xC4, 0x31),
> > +       _INIT_DCS_CMD(0xC5, 0x1C),
> > +       _INIT_DCS_CMD(0xC6, 0x2C),
> > +       _INIT_DCS_CMD(0xC7, 0x33),
> > +       _INIT_DCS_CMD(0xC8, 0x31),
> > +       _INIT_DCS_CMD(0xC9, 0x37),
> > +       _INIT_DCS_CMD(0xCA, 0x37),
> > +       _INIT_DCS_CMD(0xCB, 0x37),
> > +       _INIT_DCS_CMD(0xCC, 0x39),
> > +       _INIT_DCS_CMD(0xCD, 0x2E),
> > +       _INIT_DCS_CMD(0xCE, 0x2F),
> > +       _INIT_DCS_CMD(0xCF, 0x2F),
> > +       _INIT_DCS_CMD(0xD0, 0x07),
> > +       _INIT_DCS_CMD(0xD2, 0x00),
> > +       _INIT_DCS_CMD(0xD3, 0x0D),
> > +       _INIT_DCS_CMD(0xD4, 0x17),
> > +       _INIT_DCS_CMD(0xD5, 0x26),
> > +       _INIT_DCS_CMD(0xD6, 0x31),
> > +       _INIT_DCS_CMD(0xD7, 0x3F),
> > +       _INIT_DCS_CMD(0xD8, 0x3F),
> > +       _INIT_DCS_CMD(0xD9, 0x3F),
> > +       _INIT_DCS_CMD(0xDA, 0x3F),
> > +       _INIT_DCS_CMD(0xDB, 0x37),
> > +       _INIT_DCS_CMD(0xDC, 0x37),
> > +       _INIT_DCS_CMD(0xDD, 0x37),
> > +       _INIT_DCS_CMD(0xDE, 0x39),
> > +       _INIT_DCS_CMD(0xDF, 0x2E),
> > +       _INIT_DCS_CMD(0xE0, 0x2F),
> > +       _INIT_DCS_CMD(0xE1, 0x2F),
> > +       _INIT_DCS_CMD(0xE2, 0x07),
> > +       _INIT_DCS_CMD(0xB0, 0x03),
> > +       _INIT_DCS_CMD(0xC8, 0x0B),
> > +       _INIT_DCS_CMD(0xC9, 0x07),
> > +       _INIT_DCS_CMD(0xC3, 0x00),
> > +       _INIT_DCS_CMD(0xE7, 0x00),
> > +       _INIT_DCS_CMD(0xC5, 0x2A),
> > +       _INIT_DCS_CMD(0xDE, 0x2A),
> > +       _INIT_DCS_CMD(0xCA, 0x43),
> > +       _INIT_DCS_CMD(0xC9, 0x07),
> > +       _INIT_DCS_CMD(0xE4, 0xC0),
> > +       _INIT_DCS_CMD(0xE5, 0x0D),
> > +       _INIT_DCS_CMD(0xCB, 0x00),
> > +       _INIT_DCS_CMD(0xB0, 0x06),
> > +       _INIT_DCS_CMD(0xB8, 0xA5),
> > +       _INIT_DCS_CMD(0xC0, 0xA5),
> > +       _INIT_DCS_CMD(0xC7, 0x0F),
> > +       _INIT_DCS_CMD(0xD5, 0x32),
> > +       _INIT_DCS_CMD(0xB8, 0x00),
> > +       _INIT_DCS_CMD(0xC0, 0x00),
> > +       _INIT_DCS_CMD(0xBC, 0x00),
> > +       _INIT_DCS_CMD(0xB0, 0x07),
> > +       _INIT_DCS_CMD(0xB1, 0x00),
> > +       _INIT_DCS_CMD(0xB2, 0x02),
> > +       _INIT_DCS_CMD(0xB3, 0x0F),
> > +       _INIT_DCS_CMD(0xB4, 0x25),
> > +       _INIT_DCS_CMD(0xB5, 0x39),
> > +       _INIT_DCS_CMD(0xB6, 0x4E),
> > +       _INIT_DCS_CMD(0xB7, 0x72),
> > +       _INIT_DCS_CMD(0xB8, 0x97),
> > +       _INIT_DCS_CMD(0xB9, 0xDC),
> > +       _INIT_DCS_CMD(0xBA, 0x22),
> > +       _INIT_DCS_CMD(0xBB, 0xA4),
> > +       _INIT_DCS_CMD(0xBC, 0x2B),
> > +       _INIT_DCS_CMD(0xBD, 0x2F),
> > +       _INIT_DCS_CMD(0xBE, 0xA9),
> > +       _INIT_DCS_CMD(0xBF, 0x25),
> > +       _INIT_DCS_CMD(0xC0, 0x61),
> > +       _INIT_DCS_CMD(0xC1, 0x97),
> > +       _INIT_DCS_CMD(0xC2, 0xB2),
> > +       _INIT_DCS_CMD(0xC3, 0xCD),
> > +       _INIT_DCS_CMD(0xC4, 0xD9),
> > +       _INIT_DCS_CMD(0xC5, 0xE7),
> > +       _INIT_DCS_CMD(0xC6, 0xF4),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x08),
> > +       _INIT_DCS_CMD(0xB1, 0x04),
> > +       _INIT_DCS_CMD(0xB2, 0x05),
> > +       _INIT_DCS_CMD(0xB3, 0x11),
> > +       _INIT_DCS_CMD(0xB4, 0x24),
> > +       _INIT_DCS_CMD(0xB5, 0x39),
> > +       _INIT_DCS_CMD(0xB6, 0x4F),
> > +       _INIT_DCS_CMD(0xB7, 0x72),
> > +       _INIT_DCS_CMD(0xB8, 0x98),
> > +       _INIT_DCS_CMD(0xB9, 0xDC),
> > +       _INIT_DCS_CMD(0xBA, 0x23),
> > +       _INIT_DCS_CMD(0xBB, 0xA6),
> > +       _INIT_DCS_CMD(0xBC, 0x2C),
> > +       _INIT_DCS_CMD(0xBD, 0x30),
> > +       _INIT_DCS_CMD(0xBE, 0xAA),
> > +       _INIT_DCS_CMD(0xBF, 0x26),
> > +       _INIT_DCS_CMD(0xC0, 0x62),
> > +       _INIT_DCS_CMD(0xC1, 0x9B),
> > +       _INIT_DCS_CMD(0xC2, 0xB5),
> > +       _INIT_DCS_CMD(0xC3, 0xCF),
> > +       _INIT_DCS_CMD(0xC4, 0xDB),
> > +       _INIT_DCS_CMD(0xC5, 0xE8),
> > +       _INIT_DCS_CMD(0xC6, 0xF5),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x09),
> > +       _INIT_DCS_CMD(0xB1, 0x04),
> > +       _INIT_DCS_CMD(0xB2, 0x02),
> > +       _INIT_DCS_CMD(0xB3, 0x16),
> > +       _INIT_DCS_CMD(0xB4, 0x24),
> > +       _INIT_DCS_CMD(0xB5, 0x3B),
> > +       _INIT_DCS_CMD(0xB6, 0x4F),
> > +       _INIT_DCS_CMD(0xB7, 0x73),
> > +       _INIT_DCS_CMD(0xB8, 0x99),
> > +       _INIT_DCS_CMD(0xB9, 0xE0),
> > +       _INIT_DCS_CMD(0xBA, 0x26),
> > +       _INIT_DCS_CMD(0xBB, 0xAD),
> > +       _INIT_DCS_CMD(0xBC, 0x36),
> > +       _INIT_DCS_CMD(0xBD, 0x3A),
> > +       _INIT_DCS_CMD(0xBE, 0xAE),
> > +       _INIT_DCS_CMD(0xBF, 0x2A),
> > +       _INIT_DCS_CMD(0xC0, 0x66),
> > +       _INIT_DCS_CMD(0xC1, 0x9E),
> > +       _INIT_DCS_CMD(0xC2, 0xB8),
> > +       _INIT_DCS_CMD(0xC3, 0xD1),
> > +       _INIT_DCS_CMD(0xC4, 0xDD),
> > +       _INIT_DCS_CMD(0xC5, 0xE9),
> > +       _INIT_DCS_CMD(0xC6, 0xF6),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x0A),
> > +       _INIT_DCS_CMD(0xB1, 0x00),
> > +       _INIT_DCS_CMD(0xB2, 0x02),
> > +       _INIT_DCS_CMD(0xB3, 0x0F),
> > +       _INIT_DCS_CMD(0xB4, 0x25),
> > +       _INIT_DCS_CMD(0xB5, 0x39),
> > +       _INIT_DCS_CMD(0xB6, 0x4E),
> > +       _INIT_DCS_CMD(0xB7, 0x72),
> > +       _INIT_DCS_CMD(0xB8, 0x97),
> > +       _INIT_DCS_CMD(0xB9, 0xDC),
> > +       _INIT_DCS_CMD(0xBA, 0x22),
> > +       _INIT_DCS_CMD(0xBB, 0xA4),
> > +       _INIT_DCS_CMD(0xBC, 0x2B),
> > +       _INIT_DCS_CMD(0xBD, 0x2F),
> > +       _INIT_DCS_CMD(0xBE, 0xA9),
> > +       _INIT_DCS_CMD(0xBF, 0x25),
> > +       _INIT_DCS_CMD(0xC0, 0x61),
> > +       _INIT_DCS_CMD(0xC1, 0x97),
> > +       _INIT_DCS_CMD(0xC2, 0xB2),
> > +       _INIT_DCS_CMD(0xC3, 0xCD),
> > +       _INIT_DCS_CMD(0xC4, 0xD9),
> > +       _INIT_DCS_CMD(0xC5, 0xE7),
> > +       _INIT_DCS_CMD(0xC6, 0xF4),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x0B),
> > +       _INIT_DCS_CMD(0xB1, 0x04),
> > +       _INIT_DCS_CMD(0xB2, 0x05),
> > +       _INIT_DCS_CMD(0xB3, 0x11),
> > +       _INIT_DCS_CMD(0xB4, 0x24),
> > +       _INIT_DCS_CMD(0xB5, 0x39),
> > +       _INIT_DCS_CMD(0xB6, 0x4F),
> > +       _INIT_DCS_CMD(0xB7, 0x72),
> > +       _INIT_DCS_CMD(0xB8, 0x98),
> > +       _INIT_DCS_CMD(0xB9, 0xDC),
> > +       _INIT_DCS_CMD(0xBA, 0x23),
> > +       _INIT_DCS_CMD(0xBB, 0xA6),
> > +       _INIT_DCS_CMD(0xBC, 0x2C),
> > +       _INIT_DCS_CMD(0xBD, 0x30),
> > +       _INIT_DCS_CMD(0xBE, 0xAA),
> > +       _INIT_DCS_CMD(0xBF, 0x26),
> > +       _INIT_DCS_CMD(0xC0, 0x62),
> > +       _INIT_DCS_CMD(0xC1, 0x9B),
> > +       _INIT_DCS_CMD(0xC2, 0xB5),
> > +       _INIT_DCS_CMD(0xC3, 0xCF),
> > +       _INIT_DCS_CMD(0xC4, 0xDB),
> > +       _INIT_DCS_CMD(0xC5, 0xE8),
> > +       _INIT_DCS_CMD(0xC6, 0xF5),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x0C),
> > +       _INIT_DCS_CMD(0xB1, 0x04),
> > +       _INIT_DCS_CMD(0xB2, 0x02),
> > +       _INIT_DCS_CMD(0xB3, 0x16),
> > +       _INIT_DCS_CMD(0xB4, 0x24),
> > +       _INIT_DCS_CMD(0xB5, 0x3B),
> > +       _INIT_DCS_CMD(0xB6, 0x4F),
> > +       _INIT_DCS_CMD(0xB7, 0x73),
> > +       _INIT_DCS_CMD(0xB8, 0x99),
> > +       _INIT_DCS_CMD(0xB9, 0xE0),
> > +       _INIT_DCS_CMD(0xBA, 0x26),
> > +       _INIT_DCS_CMD(0xBB, 0xAD),
> > +       _INIT_DCS_CMD(0xBC, 0x36),
> > +       _INIT_DCS_CMD(0xBD, 0x3A),
> > +       _INIT_DCS_CMD(0xBE, 0xAE),
> > +       _INIT_DCS_CMD(0xBF, 0x2A),
> > +       _INIT_DCS_CMD(0xC0, 0x66),
> > +       _INIT_DCS_CMD(0xC1, 0x9E),
> > +       _INIT_DCS_CMD(0xC2, 0xB8),
> > +       _INIT_DCS_CMD(0xC3, 0xD1),
> > +       _INIT_DCS_CMD(0xC4, 0xDD),
> > +       _INIT_DCS_CMD(0xC5, 0xE9),
> > +       _INIT_DCS_CMD(0xC6, 0xF6),
> > +       _INIT_DCS_CMD(0xC7, 0xFA),
> > +       _INIT_DCS_CMD(0xC8, 0xFC),
> > +       _INIT_DCS_CMD(0xC9, 0x00),
> > +       _INIT_DCS_CMD(0xCA, 0x00),
> > +       _INIT_DCS_CMD(0xCB, 0x16),
> > +       _INIT_DCS_CMD(0xCC, 0xAF),
> > +       _INIT_DCS_CMD(0xCD, 0xFF),
> > +       _INIT_DCS_CMD(0xCE, 0xFF),
> > +       _INIT_DCS_CMD(0xB0, 0x00),
> > +       _INIT_DCS_CMD(0xB3, 0x08),
> > +       _INIT_DCS_CMD(0xB0, 0x04),
> > +       _INIT_DCS_CMD(0xB8, 0x68),
> > +       _INIT_DELAY_CMD(150),
> > +       {},
> > +};
> > +
> > +static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
> > +{
> > +       return container_of(panel, struct boe_panel, base);
> > +}
> > +
> > +static int boe_panel_init(struct boe_panel *boe)
> > +{
> > +       struct mipi_dsi_device *dsi = boe->dsi;
> > +       struct drm_panel *panel = &boe->base;
> > +       int err, i;
> > +
> > +       if (boe->desc->init_cmds) {
> > +               const struct panel_init_cmd *init_cmds = boe->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;
> > +                       }
> > +
> > +                       if (err < 0) {
> > +                               dev_err(panel->dev,
> > +                                       "failed to write command %u\n", i);
> > +                               return err;
> > +                       }
> > +               }
> > +       }
> > +       return 0;
> > +}
> > +
> > +static int boe_panel_off(struct boe_panel *boe)
> > +{
> > +       struct mipi_dsi_device *dsi = boe->dsi;
> > +       int ret;
> > +
> > +       dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
> > +
> > +       ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> > +       if (ret < 0)
> > +               return ret;
> > +
> > +       return 0;
> > +}
> > +
> > +static int boe_panel_disable(struct drm_panel *panel)
> > +{
> > +       struct boe_panel *boe = to_boe_panel(panel);
> > +
> > +       if (!boe->enabled)
> > +               return 0;
> > +
> > +       backlight_disable(boe->backlight);
> > +
> > +       boe->enabled = false;
> > +
> > +       return 0;
> > +}
> > +
> > +static int boe_panel_unprepare(struct drm_panel *panel)
> > +{
> > +       struct boe_panel *boe = to_boe_panel(panel);
> > +       int ret;
> > +
> > +       if (!boe->prepared)
> > +               return 0;
> > +
> > +       ret = boe_panel_off(boe);
> > +       if (ret < 0) {
> > +               dev_err(panel->dev, "failed to set panel off: %d\n", ret);
> > +               return ret;
> > +       }
> > +
> > +       msleep(150);
> > +       if (boe->enable_gpio)
> > +               gpiod_set_value(boe->enable_gpio, 0);
> > +       usleep_range(500, 1000);
> > +       regulator_disable(boe->avee);
> > +       regulator_disable(boe->avdd);
> > +       usleep_range(5000, 7000);
> > +       regulator_disable(boe->pp1800);
> > +
> > +       boe->prepared = false;
> > +
> > +       return 0;
> > +}
> > +
> > +static int boe_panel_prepare(struct drm_panel *panel)
> > +{
> > +       struct boe_panel *boe = to_boe_panel(panel);
> > +       int ret;
> > +
> > +       if (boe->prepared)
> > +               return 0;
> > +
> > +       if (boe->enable_gpio) {
> > +               gpiod_set_value(boe->enable_gpio, 0);
> > +               usleep_range(1000, 1500);
> > +       }
> > +
> > +       ret = regulator_enable(boe->pp1800);
> > +       if (ret < 0)
> > +               return ret;
> > +
> > +       usleep_range(3000, 5000);
> > +
> > +       ret = regulator_enable(boe->avdd);
> > +       if (ret < 0)
> > +               goto poweroff1v8;
> > +       ret = regulator_enable(boe->avee);
> > +       if (ret < 0)
> > +               goto poweroffavdd;
> > +
> > +       msleep(100);
> > +
> > +       if (boe->enable_gpio) {
> > +               gpiod_set_value(boe->enable_gpio, 1);
> > +               usleep_range(10000, 12000);
> > +       }
> > +
> > +       ret = boe_panel_init(boe);
> > +       if (ret < 0) {
> > +               dev_err(panel->dev, "failed to init panel: %d\n", ret);
> > +               goto poweroff;
> > +       }
> > +
> > +       boe->prepared = true;
> > +
> > +       return 0;
> > +
> > +poweroff:
> > +       regulator_disable(boe->avee);
> > +poweroffavdd:
> > +       regulator_disable(boe->avdd);
> > +poweroff1v8:
> > +       usleep_range(5000, 7000);
> > +       regulator_disable(boe->pp1800);
> > +       if (boe->enable_gpio)
> > +               gpiod_set_value(boe->enable_gpio, 0);
> > +       return ret;
> > +}
> > +
> > +static int boe_panel_enable(struct drm_panel *panel)
> > +{
> > +       struct boe_panel *boe = to_boe_panel(panel);
> > +       int ret;
> > +
> > +       if (boe->enabled)
> > +               return 0;
> > +
> > +       ret = backlight_enable(boe->backlight);
> > +       if (ret) {
> > +               dev_err(panel->dev, "Failed to enable backlight %d\n",
> > +                       ret);
> > +               return ret;
> > +       }
> > +
> > +       boe->enabled = true;
> > +
> > +       return 0;
> > +}
> > +
> > +static const struct drm_display_mode boe_default_mode = {
> > +       .clock = 159425,
> > +       .hdisplay = 1200,
> > +       .hsync_start = 1200 + 100,
> > +       .hsync_end = 1200 + 100 + 40,
> > +       .htotal = 1200 + 100 + 40 + 24,
> > +       .vdisplay = 1920,
> > +       .vsync_start = 1920 + 10,
> > +       .vsync_end = 1920 + 10 + 14,
> > +       .vtotal = 1920 + 10 + 14 + 4,
> > +       .vrefresh = 60,
> > +       .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> > +};
> > +
> > +static const struct panel_desc boe_tv101wum_nl6_desc = {
> > +       .modes = &boe_default_mode,
> > +       .bpc = 8,
> > +       .size = {
> > +               .width = 216,
> > +               .height = 135,

This is wrong, as this is a portrait panel, should be: width=135, height=216.

> > +       },
> > +       .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 = boe_init_cmd,
> > +};
> > +
> > +static int boe_panel_get_modes(struct drm_panel *panel)
> > +{
> > +       struct boe_panel *boe = to_boe_panel(panel);
> > +       const struct drm_display_mode *m = boe->desc->modes;
> > +       struct drm_display_mode *mode;
> > +
> > +       mode = drm_mode_duplicate(panel->drm, m);
> > +       if (!mode) {
> > +               dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
> > +                       m->hdisplay, m->vdisplay, m->vrefresh);
> > +               return -ENOMEM;
> > +       }
> > +
> > +       drm_mode_set_name(mode);
> > +
>
> Sam suggested adding this here:
> mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;

Scrap that, I see that you added it in boe_default_mode.

>
> > +       drm_mode_probed_add(panel->connector, mode);
> > +
> > +       panel->connector->display_info.width_mm = boe->desc->size.width;
> > +       panel->connector->display_info.height_mm = boe->desc->size.height;
> > +       panel->connector->display_info.bpc = boe->desc->bpc;
> > +
> > +       return 1;
> > +}
> > +
> > +static const struct drm_panel_funcs boe_panel_funcs = {
> > +       .disable = boe_panel_disable,
> > +       .unprepare = boe_panel_unprepare,
> > +       .prepare = boe_panel_prepare,
> > +       .enable = boe_panel_enable,
> > +       .get_modes = boe_panel_get_modes,
> > +};
> > +
> > +static int boe_panel_add(struct boe_panel *boe)
> > +{
> > +       struct device *dev = &boe->dsi->dev;
> > +
> > +       boe->avdd = devm_regulator_get(dev, "avdd");
> > +       if (IS_ERR(boe->avdd))
> > +               return PTR_ERR(boe->avdd);
> > +
> > +       boe->avee = devm_regulator_get(dev, "avee");
> > +       if (IS_ERR(boe->avee))
> > +               return PTR_ERR(boe->avee);
> > +
> > +       boe->pp1800 = devm_regulator_get(dev, "pp1800");
> > +       if (IS_ERR(boe->pp1800))
> > +               return PTR_ERR(boe->pp1800);
> > +
> > +       boe->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
> > +       if (IS_ERR(boe->enable_gpio)) {
> > +               dev_err(dev, "cannot get reset-gpios %ld\n",
> > +                       PTR_ERR(boe->enable_gpio));
> > +               return PTR_ERR(boe->enable_gpio);
> > +       }
> > +
> > +       gpiod_set_value(boe->enable_gpio, 0);
> > +
> > +       boe->backlight = devm_of_find_backlight(dev);
> > +       if (IS_ERR(boe->backlight))
> > +               return PTR_ERR(boe->backlight);
> > +
> > +       drm_panel_init(&boe->base);
> > +       boe->base.funcs = &boe_panel_funcs;
> > +       boe->base.dev = &boe->dsi->dev;
> > +
> > +       return drm_panel_add(&boe->base);
> > +}
> > +
> > +static int boe_panel_probe(struct mipi_dsi_device *dsi)
> > +{
> > +       struct boe_panel *boe;
> > +       int ret;
> > +       const struct panel_desc *desc;
> > +
> > +       boe = devm_kzalloc(&dsi->dev, sizeof(*boe), GFP_KERNEL);
> > +       if (!boe)
> > +               return -ENOMEM;
> > +
> > +       desc = of_device_get_match_data(&dsi->dev);
> > +       dsi->lanes = desc->lanes;
> > +       dsi->format = desc->format;
> > +       dsi->mode_flags = desc->mode_flags;
> > +       boe->desc = desc;
> > +       boe->dsi = dsi;
> > +       ret = boe_panel_add(boe);
> > +       if (ret < 0)
> > +               return ret;
> > +
> > +       mipi_dsi_set_drvdata(dsi, boe);
> > +
> > +       return mipi_dsi_attach(dsi);
> > +}
> > +
> > +static int boe_panel_remove(struct mipi_dsi_device *dsi)
> > +{
> > +       struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
> > +       int ret;
> > +
> > +       ret = boe_panel_disable(&boe->base);
> > +       if (ret < 0)
> > +               dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
> > +
> > +       ret = mipi_dsi_detach(dsi);
> > +       if (ret < 0)
> > +               dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
> > +
> > +       if (boe->base.dev)
> > +               drm_panel_remove(&boe->base);
> > +
> > +       return 0;
> > +}
> > +
> > +static void boe_panel_shutdown(struct mipi_dsi_device *dsi)
> > +{
> > +       struct boe_panel *boe = mipi_dsi_get_drvdata(dsi);
> > +
> > +       boe_panel_disable(&boe->base);
> > +}
> > +
> > +static const struct of_device_id boe_of_match[] = {
> > +       { .compatible = "boe,tv101wum-nl6",
> > +         .data = &boe_tv101wum_nl6_desc
> > +       },
> > +       { /* sentinel */ }
> > +};
> > +MODULE_DEVICE_TABLE(of, boe_of_match);
> > +
> > +static struct mipi_dsi_driver boe_panel_driver = {
> > +       .driver = {
> > +               .name = "panel-boe-tv101wum-nl6",
> > +               .of_match_table = boe_of_match,
> > +       },
> > +       .probe = boe_panel_probe,
> > +       .remove = boe_panel_remove,
> > +       .shutdown = boe_panel_shutdown,
> > +};
> > +module_mipi_dsi_driver(boe_panel_driver);
> > +
> > +MODULE_AUTHOR("Jitao Shi <jitao.shi@mediatek.com>");
> > +MODULE_DESCRIPTION("BOE tv101wum-nl6 1200x1920 video mode panel driver");
> > +MODULE_LICENSE("GPL v2");
> > --
> > 2.21.0
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
On Mon, Jun 24, 2019 at 6:03 AM Jitao Shi <jitao.shi@mediatek.com> wrote:

There are some error when unbinding this driver,
`` echo 14014000.dsi.0 >
/sys/bus/mipi-dsi/drivers/panel-boe-tv101wum-nl6/unbind ``

[   40.404393] WARNING: CPU: 1 PID: 2612 at
/mnt/host/source/src/third_party/kernel/v4.19/drivers/regulator/core.c:2054
_regulator_put+0xe4/0xec
[   40.417098] Modules linked in: rfcomm uinput thermal_generic_adc
hci_uart btqca bluetooth ecdh_generic mtk_scp mtk_rpmsg mtk_scp_ipi
bridge rpmsg_core mt6577_auxadc stp llc nf_nat_tftp nv
[   40.471107] CPU: 1 PID: 2612 Comm: bash Tainted: G S
4.19.53 #99
[   40.478410] Hardware name: MediaTek krane rev3 sku16 board (DT)
[   40.484327] pstate: 80000005 (Nzcv daif -PAN -UAO)
[   40.489118] pc : _regulator_put+0xe4/0xec
[   40.493127] lr : regulator_put+0x2c/0x40
[   40.497044] sp : ffffff800cef3b00
[   40.500354] x29: ffffff800cef3b10 x28: fffffff0e7a22a00
[   40.505667] x27: 0000000000000000 x26: fffffff13876fc00
[   40.510979] x25: ffffff800cef3b68 x24: ffffff91f0b92000
[   40.516291] x23: ffffff91f03f2917 x22: ffffff91f0453a1c
[   40.521604] x21: fffffff13876fe00 x20: ffffff91f0a80988
[   40.526916] x19: fffffff13876ff00 x18: 0000000000000000
[   40.532229] x17: 0000000000000000 x16: 0000000000000000
[   40.537541] x15: 0000000000000000 x14: 0000000000000000
[   40.542854] x13: 0000000000000010 x12: 0000000000000000
[   40.548166] x11: 0000000000000000 x10: 0000000000000000
[   40.553478] x9 : fffffff0e7a22a00 x8 : 0000000000000001
[   40.558789] x7 : 0004be4200000000 x6 : 0000000042be0400
[   40.564102] x5 : ffffff91f043a5ef x4 : ffffff91f043a5ef
[   40.569414] x3 : 0000000000000000 x2 : 0000000000000000
[   40.574726] x1 : 00000000000000fe x0 : fffffff13876ff00
[   40.580040] Call trace:
[   40.582488]  _regulator_put+0xe4/0xec
[   40.586148]  regulator_put+0x2c/0x40
[   40.589724]  devm_regulator_release+0x1c/0x28
[   40.594084]  release_nodes+0x1f0/0x244
[   40.597832]  devres_release_all+0x3c/0x54
[   40.601840]  device_release_driver_internal+0x148/0x1ec
[   40.607061]  device_release_driver+0x24/0x30
[   40.611328]  unbind_store+0x90/0xdc
[   40.614814]  drv_attr_store+0x3c/0x54
[   40.618478]  sysfs_kf_write+0x50/0x68
[   40.622137]  kernfs_fop_write+0x12c/0x1c8
[   40.626146]  __vfs_write+0x54/0x15c
[   40.629631]  vfs_write+0xcc/0x188
[   40.632943]  ksys_write+0x78/0xd8
[   40.636255]  __arm64_sys_write+0x20/0x2c
[   40.640181]  el0_svc_common+0xa4/0x154
[   40.643928]  el0_svc_compat_handler+0x2c/0x38
[   40.648283]  el0_svc_compat+0x8/0x18
[   40.651855] ---[ end trace 65d8c8e7436ab6e9 ]---
[   40.656765] panel-boe-tv101wum-nl6 14014000.dsi.0: Dropping the
link to regulator.8
[   40.664649] WARNING: CPU: 6 PID: 2612 at
/mnt/host/source/src/third_party/kernel/v4.19/drivers/regulator/core.c:2054
_regulator_put+0xe4/0xec
[   40.677335] Modules linked in: rfcomm uinput thermal_generic_adc
hci_uart btqca bluetooth ecdh_generic mtk_scp mtk_rpmsg mtk_scp_ipi
bridge rpmsg_core mt6577_auxadc stp llc nf_nat_tftp nv
[   40.731273] CPU: 6 PID: 2612 Comm: bash Tainted: G S      W
4.19.53 #99
[   40.738574] Hardware name: MediaTek krane rev3 sku16 board (DT)
[   40.744488] pstate: 80000005 (Nzcv daif -PAN -UAO)
[   40.749276] pc : _regulator_put+0xe4/0xec
[   40.753282] lr : regulator_put+0x2c/0x40
[   40.757197] sp : ffffff800cef3b00
[   40.760505] x29: ffffff800cef3b10 x28: fffffff0e7a22a00
[   40.765814] x27: 0000000000000000 x26: fffffff13876fa00
[   40.771122] x25: ffffff800cef3b68 x24: ffffff91f0b92000
[   40.776429] x23: ffffff91f03f2917 x22: ffffff91f0453a1c
[   40.781736] x21: fffffff13876fc00 x20: ffffff91f0a80988
[   40.787044] x19: fffffff13876fd00 x18: 0000000000000020
[   40.792351] x17: 0000000000000001 x16: 0000000000000000
[   40.797658] x15: 0000000000000000 x14: 00000000000003f1
[   40.802966] x13: 0000000000000004 x12: 000000001f80c232
[   40.808272] x11: 0000000000000000 x10: 0000000000000001
[   40.813580] x9 : 7ee042d282bebd00 x8 : 0000000000000001
[   40.818887] x7 : fefeff2f2f37306f x6 : 0000000000000000
[   40.824194] x5 : 0000000000000000 x4 : ffffff91f0143fdc
[   40.829501] x3 : 0000000000000000 x2 : 0000000000000000
[   40.834809] x1 : 000000000000038c x0 : fffffff13876fd00
[   40.840116] Call trace:
[   40.842560]  _regulator_put+0xe4/0xec
[   40.846218]  regulator_put+0x2c/0x40
[   40.849791]  devm_regulator_release+0x1c/0x28
[   40.854148]  release_nodes+0x1f0/0x244
[   40.857892]  devres_release_all+0x3c/0x54
[   40.861898]  device_release_driver_internal+0x148/0x1ec
[   40.867116]  device_release_driver+0x24/0x30
[   40.871380]  unbind_store+0x90/0xdc
[   40.874863]  drv_attr_store+0x3c/0x54
[   40.878524]  sysfs_kf_write+0x50/0x68
[   40.882180]  kernfs_fop_write+0x12c/0x1c8
[   40.886186]  __vfs_write+0x54/0x15c
[   40.889668]  vfs_write+0xcc/0x188
[   40.892978]  ksys_write+0x78/0xd8
[   40.896287]  __arm64_sys_write+0x20/0x2c
[   40.900208]  el0_svc_common+0xa4/0x154
[   40.903951]  el0_svc_compat_handler+0x2c/0x38
[   40.908302]  el0_svc_compat+0x8/0x18
[   40.911871] ---[ end trace 65d8c8e7436ab6ea ]---
[   40.916642] panel-boe-tv101wum-nl6 14014000.dsi.0: Dropping the
link to regulator.7
[   40.924511] WARNING: CPU: 6 PID: 2612 at
/mnt/host/source/src/third_party/kernel/v4.19/drivers/regulator/core.c:2054
_regulator_put+0xe4/0xec
[   40.937193] Modules linked in: rfcomm uinput thermal_generic_adc
hci_uart btqca bluetooth ecdh_generic mtk_scp mtk_rpmsg mtk_scp_ipi
bridge rpmsg_core mt6577_auxadc stp llc nf_nat_tftp nv
[   40.991108] CPU: 6 PID: 2612 Comm: bash Tainted: G S      W
4.19.53 #99
[   40.998407] Hardware name: MediaTek krane rev3 sku16 board (DT)
[   41.004320] pstate: 80000005 (Nzcv daif -PAN -UAO)
[   41.009105] pc : _regulator_put+0xe4/0xec
[   41.013109] lr : regulator_put+0x2c/0x40
[   41.017022] sp : ffffff800cef3b00
[   41.020329] x29: ffffff800cef3b10 x28: fffffff0e7a22a00
[   41.025636] x27: 0000000000000000 x26: fffffff13876f900
[   41.030942] x25: ffffff800cef3b68 x24: ffffff91f0b92000
[   41.036248] x23: ffffff91f03f2917 x22: ffffff91f0453a1c
[   41.041554] x21: fffffff13876fa00 x20: ffffff91f0a80988
[   41.046859] x19: fffffff13876fb00 x18: 0000000000000020
[   41.052166] x17: 0000000000000001 x16: 0000000000000000
[   41.057472] x15: 00000000ffffffff x14: 00000000000002e3
[   41.062778] x13: 0000000000000000 x12: 0000000000000000
[   41.068084] x11: 0000000000000000 x10: 00000000ffffffff
[   41.073389] x9 : 7ee042d282bebd00 x8 : 0000000000000001
[   41.078696] x7 : 0000000000000000 x6 : ffffff800cef37f0
[   41.084002] x5 : 0000000000000040 x4 : 0000000000000000
[   41.089307] x3 : 0000000000000000 x2 : fffffff0e7a22ac0
[   41.094613] x1 : 0000000000000000 x0 : fffffff13876fb00
[   41.099918] Call trace:
[   41.102361]  _regulator_put+0xe4/0xec
[   41.106017]  regulator_put+0x2c/0x40
[   41.109587]  devm_regulator_release+0x1c/0x28
[   41.113939]  release_nodes+0x1f0/0x244
[   41.117683]  devres_release_all+0x3c/0x54
[   41.121686]  device_release_driver_internal+0x148/0x1ec
[   41.126904]  device_release_driver+0x24/0x30
[   41.131167]  unbind_store+0x90/0xdc
[   41.134649]  drv_attr_store+0x3c/0x54
[   41.138308]  sysfs_kf_write+0x50/0x68
[   41.141962]  kernfs_fop_write+0x12c/0x1c8
[   41.145965]  __vfs_write+0x54/0x15c
[   41.149446]  vfs_write+0xcc/0x188
[   41.152754]  ksys_write+0x78/0xd8
[   41.156061]  __arm64_sys_write+0x20/0x2c
[   41.159979]  el0_svc_common+0xa4/0x154
[   41.163722]  el0_svc_compat_handler+0x2c/0x38
[   41.168072]  el0_svc_compat+0x8/0x18
[   41.171640] ---[ end trace 65d8c8e7436ab6eb ]---
[   41.176405] panel-boe-tv101wum-nl6 14014000.dsi.0: Dropping the
link to regulator.6

Also, sometimes when rebinding the driver
`` echo 14014000.dsi.0 >
/sys/bus/mipi-dsi/drivers/panel-boe-tv101wum-nl6/bind ``
UI still failed to show up.