From: Kamil Trzciński
The driver is for panels based on the Himax HX8394 controller, such as the
HannStar HSD060BHW4 720x1440 TFT LCD panel that uses a MIPI-DSI interface.
Signed-off-by: Kamil Trzciński
Co-developed-by: Ondrej Jirman
Signed-off-by: Ondrej Jirman
Co-developed-by: Javier Martinez Canillas
Signed-off-by: Javier Martinez Canillas
Reviewed-by: Sam Ravnborg
---
Changes in v3:
- Add Sam Ravnborg's reviwed-by tag.
- Move driver patch after one introducing the DT binding (Sam Ravnborg).
Changes in v2:
- Add year to driver's copyright notice (Sam Ravnborg)
- Remove unused header include (Sam Ravnborg).
- Use mipi_dsi_dcs_write_seq() helper and drop custom macro (Sam Ravnborg).
- Drop unnecessary info messages and move useful one to debug (Sam Ravnborg).
drivers/gpu/drm/panel/Kconfig | 12 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-himax-hx8394.c | 446 +
3 files changed, 459 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-himax-hx8394.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 737edcdf9eef..7ee9c83f09a7 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -154,6 +154,18 @@ config DRM_PANEL_FEIYANG_FY07024DI26A30D
Say Y if you want to enable support for panels based on the
Feiyang FY07024DI26A30-D MIPI-DSI interface.
+config DRM_PANEL_HIMAX_HX8394
+ tristate "HIMAX HX8394 MIPI-DSI LCD panels"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y if you want to enable support for panels based on the
+ Himax HX8394 controller, such as the HannStar HSD060BHW4
+ 720x1440 TFT LCD panel that uses a MIPI-DSI interface.
+
+ If M is selected the module will be called panel-himax-hx8394.
+
config DRM_PANEL_ILITEK_IL9322
tristate "Ilitek ILI9322 320x240 QVGA panels"
depends on OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index f8f9d9f6a307..84c01adafd4c 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_DRM_PANEL_EBBG_FT8719) += panel-ebbg-ft8719.o
obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o
obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o
obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) +=
panel-feiyang-fy07024di26a30d.o
+obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o
obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9341) += panel-ilitek-ili9341.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
diff --git a/drivers/gpu/drm/panel/panel-himax-hx8394.c
b/drivers/gpu/drm/panel/panel-himax-hx8394.c
new file mode 100644
index ..fc7a2c299f8d
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-himax-hx8394.c
@@ -0,0 +1,446 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for panels based on Himax HX8394 controller, such as:
+ *
+ * - HannStar HSD060BHW4 5.99" MIPI-DSI panel
+ *
+ * Copyright (C) 2021 Kamil Trzciński
+ *
+ * Based on drivers/gpu/drm/panel/panel-sitronix-st7703.c
+ * Copyright (C) Purism SPC 2019
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+
+#include
+#include
+#include
+
+#define DRV_NAME "panel-himax-hx8394"
+
+/* Manufacturer specific commands sent via DSI, listed in HX8394-F datasheet */
+#define HX8394_CMD_SETSEQUENCE 0xb0
+#define HX8394_CMD_SETPOWER 0xb1
+#define HX8394_CMD_SETDISP 0xb2
+#define HX8394_CMD_SETCYC0xb4
+#define HX8394_CMD_SETVCOM 0xb6
+#define HX8394_CMD_SETTE 0xb7
+#define HX8394_CMD_SETSENSOR 0xb8
+#define HX8394_CMD_SETEXTC 0xb9
+#define HX8394_CMD_SETMIPI 0xba
+#define HX8394_CMD_SETOTP0xbb
+#define HX8394_CMD_SETREGBANK0xbd
+#define HX8394_CMD_UNKNOWN1 0xc0
+#define HX8394_CMD_SETDGCLUT 0xc1
+#define HX8394_CMD_SETID 0xc3
+#define HX8394_CMD_SETDDB0xc4
+#define HX8394_CMD_UNKNOWN2 0xc6
+#define HX8394_CMD_SETCABC 0xc9
+#define HX8394_CMD_SETCABCGAIN 0xca
+#define HX8394_CMD_SETPANEL 0xcc
+#define HX8394_CMD_SETOFFSET 0xd2
+#define HX8394_CMD_SETGIP0 0xd3
+#define HX8394_CMD_UNKNOWN3 0xd4
+#define HX8394_CMD_SETGIP1 0xd5
+#define HX8394_CMD_SETGIP2 0xd6
+#define HX8394_CMD_SETGPO0xd6
+#define HX8394_CMD_SETSCALING0xdd
+#define HX8394_CMD_SETIDLE 0xdf
+#define HX8394_CMD_SETGAMMA 0xe0
+#define HX8394_CMD_SETCHEMODE_DYN 0xe4
+#define HX8394_CMD_SETCHE0xe5
+#define HX8394_CMD_SETCESEL 0xe6
+#define HX8394_CMD_SET_SP_CMD0xe9
+#define HX8394_CMD_SETREADINDEX 0xfe
+#define HX8394_CMD_GETSPIREAD0xff
+
+struct hx8394 {
+ struct device *dev;
+ struct drm_panel panel;
+ struct
