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new e540e2b92 lvgl: Add IPS parameters to ILI9341 driver
e540e2b92 is described below
commit e540e2b92b8c5891811e41208a2f8a5308ad36b4
Author: Jerzy Kasenberg <[email protected]>
AuthorDate: Sun Sep 29 23:40:27 2024 +0200
lvgl: Add IPS parameters to ILI9341 driver
Some ILI9341 displays are IPS not TFT and
they require different configuration.
This adds syscfg value to use configuration
suitable for IPS displays base on ILI9341
controller.
Signed-off-by: Jerzy Kasenberg <[email protected]>
---
hw/drivers/display/lvgl/tft/ili9341/src/ili9341.c | 24 +++++++++++++++++++++++
hw/drivers/display/lvgl/tft/ili9341/syscfg.yml | 6 ++++++
2 files changed, 30 insertions(+)
diff --git a/hw/drivers/display/lvgl/tft/ili9341/src/ili9341.c
b/hw/drivers/display/lvgl/tft/ili9341/src/ili9341.c
index 09053df39..28bd75bc8 100644
--- a/hw/drivers/display/lvgl/tft/ili9341/src/ili9341.c
+++ b/hw/drivers/display/lvgl/tft/ili9341/src/ili9341.c
@@ -159,6 +159,7 @@ LCD_SEQUENCE(init_cmds)
1, ILI9341_SWRESET,
LCD_SEQUENCE_DELAY(5),
#endif
+#if MYNEWT_VAL(ILI9341_IPS) == 0
1, ILI9341_DISPOFF,
4, ILI9341_PWCTRLB, 0x00, 0x83, 0x30,
5, ILI9341_PWSEQCTRL, 0x64, 0x03, 0x12, 0x81,
@@ -177,6 +178,29 @@ LCD_SEQUENCE(init_cmds)
2, ILI9341_GAMSET, 01,
16, ILI9341_PGAMCTRL, 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87,
0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00,
16, ILI9341_NGAMCTRL, 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78,
0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f,
+#elif MYNEWT_VAL(ILI9341_IPS) == 1
+ 1, ILI9341_DISPOFF,
+ 4, ILI9341_PWCTRLB, 0x00, 0xC1, 0x30,
+ 5, ILI9341_PWSEQCTRL, 0x64, 0x03, 0x12, 0x81,
+ 4, ILI9341_TIMECTRLA_INT, 0x85, 0x00, 0x78,
+ 6, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02,
+ 2, ILI9341_PUMPRATIO, 0x20,
+ 3, ILI9341_TIMECTRLB, 0x00, 0x00,
+ 2, ILI9341_PWCTRL1, 0x13, /* VRH[5:0] */
+ 2, ILI9341_PWCTRL2, 0x13, /* SAP[2:0];BT[3:0] */
+ 3, ILI9341_VMCTRL1, 0x1C, 0x35,
+ 2, ILI9341_VMCTRL2, 0xC8,
+ 1, ILI9341_DINVON,
+ 2, ILI9341_MADCTL, MADCTL_BGR | MADCTL_MX,
+ 2, ILI9341_PIXSET, 0x55,
+ 3, ILI9341_IFCTL, 0x01, 0x30,
+ 3, ILI9341_FRMCTR1, 0x00, 0x1B,
+ /* positive gamma correction */
+ 2, ILI9341_GAM3CTRL, 0x00,
+ 2, ILI9341_GAMSET, 0x01,
+ 16, ILI9341_PGAMCTRL, 0x0F, 0x35, 0x31, 0x0B, 0x0E, 0x06, 0x49, 0xA7,
0x33, 0x07, 0x0F, 0x03, 0x0C, 0x0A, 0x00,
+ 16, ILI9341_NGAMCTRL, 0x00, 0x0A, 0x0F, 0x04, 0x11, 0x08, 0x36, 0x58,
0x4D, 0x07, 0x10, 0x0C, 0x32, 0x34, 0x0F,
+#endif
5, ILI9341_CASET, 0x00, 0x00, 0x00, 0xEF,
5, ILI9341_PASET, 0x00, 0x00, 0x01, 0x3F,
1, ILI9341_TEON,
diff --git a/hw/drivers/display/lvgl/tft/ili9341/syscfg.yml
b/hw/drivers/display/lvgl/tft/ili9341/syscfg.yml
index 9b18475be..716a531d5 100644
--- a/hw/drivers/display/lvgl/tft/ili9341/syscfg.yml
+++ b/hw/drivers/display/lvgl/tft/ili9341/syscfg.yml
@@ -17,6 +17,12 @@
#
syscfg.defs:
+ ILI9341_IPS:
+ description: >
+ Use configuration for IPS display.
+ IPS displays require different register values to show
+ correct colors.
+ value: 0
syscfg.vals:
LVGL_DISPLAY_HORIZONTAL_RESOLUTION: 240
