From: Nickey Yang
Support Kingdisplay kd097d04 9.7" 1536x2048 TFT LCD panel,
it is a MIPI dual-DSI panel.
v4:
- address Philipp's comments
- real range for usleep_range and
- poweroff ordering in kingdisplay_panel_prepare
- return value beautification in panel_probe
- update author naming for full name
v3:
- address Thierry's comments
- error handling for init dsi writes in init
- unconditionally remove the panel
- don't use drm_panel_detach
- a bit of variable signednes wiggling
- I did talk to ChromeOS people and the delays really should be as short
as possible, so dropped the 100ms from the delay comments
v2:
- update timing + cmds from chromeos kernel
- new backlight API including switch to devm_of_find_backlight
- fix most of Sean Paul's comments
enable/prepare tracking seems something all panels do
- document origins of the init sequence
- lanes per dsi interface to 4 (two interfaces). Matches how tegra
and pending rockchip dual-dsi handle (dual-)dsi lanes
- spdx header instead of license boilerplate
Signed-off-by: Nickey Yang
Signed-off-by: Heiko Stuebner
---
drivers/gpu/drm/panel/Kconfig | 11 +
drivers/gpu/drm/panel/Makefile| 1 +
.../drm/panel/panel-kingdisplay-kd097d04.c| 473 ++
3 files changed, 485 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 6020c30a33b3..458253dc0842 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -77,6 +77,17 @@ config DRM_PANEL_JDI_LT070ME05000
The panel has a 1200(RGB)×1920 (WUXGA) resolution and uses
24 bit per pixel.
+config DRM_PANEL_KINGDISPLAY_KD097D04
+ tristate "Kingdisplay kd097d04 panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to enable support for Kingdisplay kd097d04
+ TFT-LCD modules. The panel has a 1536x2048 resolution and uses
+ 24 bit RGB per pixel. It provides a MIPI DSI interface to
+ the host and has a built-in LED backlight.
+
config DRM_PANEL_SAMSUNG_LD9040
tristate "Samsung LD9040 RGB/SPI panel"
depends on OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 5ccaaa9d13af..d59f75b84d48 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
+obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) +=
panel-panasonic-vvx10f034n00.o
diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
new file mode 100644
index ..2a25a914d09e
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -0,0 +1,473 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+#include
+
+#include
+
+struct kingdisplay_panel {
+ struct drm_panel base;
+ struct mipi_dsi_device *link;
+
+ struct backlight_device *backlight;
+ struct regulator *supply;
+ struct gpio_desc *enable_gpio;
+
+ bool prepared;
+ bool enabled;
+};
+
+struct kingdisplay_panel_cmd {
+ char cmd;
+ char data;
+};
+
+/*
+ * According to the discussion on
+ * https://review.coreboot.org/#/c/coreboot/+/22472/
+ * the panel init array is not part of the panels datasheet but instead
+ * just came in this form from the panel vendor.
+ */
+static const struct kingdisplay_panel_cmd init_code[] = {
+ /* voltage setting */
+ { 0xB0, 0x00 },
+ { 0xB2, 0x02 },
+ { 0xB3, 0x11 },
+ { 0xB4, 0x00 },
+ { 0xB6, 0x80 },
+ /* VCOM disable */
+ { 0xB7, 0x02 },
+ { 0xB8, 0x80 },
+ { 0xBA, 0x43 },
+ /* VCOM setting */
+ { 0xBB, 0x53 },
+ /* VSP setting */
+ { 0xBC, 0x0A },
+ /* VSN setting */
+ { 0xBD, 0x4A },
+ /* VGH setting */
+ { 0xBE, 0x2F },
+ /* VGL setting */
+ { 0xBF, 0x1A },
+ { 0xF0, 0x39 },
+ { 0xF1, 0x22 },
+ /* Gamma setting */
+ { 0xB0, 0x02 },
+ { 0xC0, 0x00 },
+ { 0xC1, 0x01 },
+ { 0xC2, 0x0B },
+ { 0xC3, 0x15 },
+ { 0xC4, 0x22 },
+ { 0xC5, 0x11 },
+ { 0xC6, 0x15 },
+ { 0xC7, 0x19 },
+ {
