From: dillon min
This adds support for the Ilitek ILI9341 QVGA (240x320)
TFT panel driver.
This panel driver supports parallel RGB input.
The controller is combined with a physical panel and
configured through the device tree.
Signed-off-by: dillon min
---
drivers/gpu/drm/panel/Kconfig| 8 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 513 +++
3 files changed, 522 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9341.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index a1723c1..e42692c 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -95,6 +95,14 @@ config DRM_PANEL_ILITEK_IL9322
Say Y here if you want to enable support for Ilitek IL9322
QVGA (320x240) RGB, YUV and ITU-T BT.656 panels.
+config DRM_PANEL_ILITEK_IL9341
+ tristate "Ilitek ILI9341 240x320 QVGA panels"
+ depends on OF && SPI
+ select REGMAP
+ help
+ Say Y here if you want to enable support for Ilitek IL9341
+ QVGA (240x320) RGB panels.
+
config DRM_PANEL_ILITEK_ILI9881C
tristate "Ilitek ILI9881C-based panels"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 96a883c..d123543 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -8,6 +8,7 @@ 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_ILITEK_IL9322) += panel-ilitek-ili9322.o
+obj-$(CONFIG_DRM_PANEL_ILITEK_IL9341) += panel-ilitek-ili9341.o
obj-$(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
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
new file mode 100644
index 000..e458677
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
@@ -0,0 +1,513 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Ilitek ILI9341 TFT LCD drm_panel driver.
+ *
+ * This panel can be configured to support:
+ * - 16-bit parallel RGB interface
+ *
+ * Copyright (C) 2020 Dillon Min
+ * Derived from drivers/drm/gpu/panel/panel-ilitek-ili9322.c
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+
+#define DEFAULT_SPI_SPEED 1000
+
+#define ILI9341_SLEEP_OUT0x11 /* Sleep out register */
+#define ILI9341_GAMMA0x26 /* Gamma register */
+#define ILI9341_DISPLAY_OFF 0x28 /* Display off register */
+#define ILI9341_DISPLAY_ON 0x29 /* Display on register */
+#define ILI9341_COLUMN_ADDR 0x2A /* Colomn address register */
+#define ILI9341_PAGE_ADDR0x2B /* Page address register */
+#define ILI9341_GRAM 0x2C /* GRAM register */
+#define ILI9341_MAC 0x36 /* Memory Access Control register*/
+#define ILI9341_PIXEL_FORMAT 0x3A /* Pixel Format register */
+#define ILI9341_WDB 0x51 /* Write Brightness Display
+* register
+*/
+#define ILI9341_WCD 0x53 /* Write Control Display
+* register
+*/
+#define ILI9341_RGB_INTERFACE0xB0 /* RGB Interface Signal Control */
+#define ILI9341_FRC 0xB1 /* Frame Rate Control register */
+#define ILI9341_BPC 0xB5 /* Blanking Porch Control
+* register
+*/
+#define ILI9341_DFC 0xB6 /* Display Function Control
+* register
+*/
+#define ILI9341_POWER1 0xC0 /* Power Control 1 register */
+#define ILI9341_POWER2 0xC1 /* Power Control 2 register */
+#define ILI9341_VCOM10xC5 /* VCOM Control 1 register */
+#define ILI9341_VCOM20xC7 /* VCOM Control 2 register */
+#define ILI9341_POWERA 0xCB /* Power control A register */
+#define ILI9341_POWERB 0xCF /* Power control B register */
+#define ILI9341_PGAMMA 0xE0 /* Positive Gamma Correction
+* register
+*/
+#define ILI9341_NGAMMA 0xE1 /* Negative Gamma Correction
+*
