boards: shield: add support for stm32f769i_disco board

Add support for STMicroelectronics B-LCD40-DSI1 shield to stm32f769i_disco board. Default config for lvgl is adjusted to lower value to fix compilation issue on low memory footprint stm32f769i_disco. region `IDT_LIST' overflowed by 121081 bytes bss ' will not fit in region `RAM' ld.bfd: region `RAM' overflowed by 1220664 bytes collect2: error: ld returned 1 exit status Signed-off-by: Saravanan Sekar <[email protected]>
zephyrproject-rtos · Jun 28, 2024 · 6b80813 · 6b80813
1 parent cdc1149
commit 6b80813
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Showing 7 changed files with 119 additions and 8 deletions.
diff --git a/boards/shields/st_b_lcd40_dsi1_mb1166/Kconfig.defconfig b/boards/shields/st_b_lcd40_dsi1_mb1166/Kconfig.defconfig
@@ -8,19 +8,13 @@ if SHIELD_ST_B_LCD40_DSI1_MB1166 || SHIELD_ST_B_LCD40_DSI1_MB1166_A09
 if LVGL
 
 config STM32_LTDC_FB_NUM
-	default 0
+	default 1
 
 config INPUT
 	default y
 
 config LV_Z_VDB_SIZE
-	default 100
-
-config LV_Z_DOUBLE_VDB
-	default y
-
-config LV_Z_VBD_CUSTOM_SECTION
-	default y
+	default 10
 
 config LV_Z_FULL_REFRESH
 	default y

diff --git a/boards/shields/st_b_lcd40_dsi1_mb1166/boards/st_b_lcd40_dsi1_mb1166/stm32f769i_disco.conf b/boards/shields/st_b_lcd40_dsi1_mb1166/boards/st_b_lcd40_dsi1_mb1166/stm32f769i_disco.conf
@@ -0,0 +1,5 @@
+# Copyright (c) 2024 Linumiz
+# SPDX-License-Identifier: Apache-2.0
+
+# Initialize after LTDC and MIPI-DSI
+CONFIG_DISPLAY_OTM8009A_INIT_PRIORITY=87
diff --git a/boards/shields/st_b_lcd40_dsi1_mb1166/boards/st_b_lcd40_dsi1_mb1166/stm32f769i_disco.overlay b/boards/shields/st_b_lcd40_dsi1_mb1166/boards/st_b_lcd40_dsi1_mb1166/stm32f769i_disco.overlay
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2024 Linumiz
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&ltdc {
+	/* orisetech, otm8009a */
+	display-timings {
+		compatible = "zephyr,panel-timing";
+		hsync-active = <0>;
+		vsync-active = <0>;
+		de-active = <0>;
+		pixelclk-active = <0>;
+		hsync-len = <2>;
+		vsync-len = <1>;
+		hback-porch = <34>;
+		vback-porch = <15>;
+		hfront-porch = <34>;
+		vfront-porch = <16>;
+	};
+};
diff --git a/boards/shields/st_b_lcd40_dsi1_mb1166/boards/stm32f769i_disco.conf b/boards/shields/st_b_lcd40_dsi1_mb1166/boards/stm32f769i_disco.conf
@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Linumiz
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MEMC=y
+CONFIG_STM32_LTDC_RGB888=y
+CONFIG_HEAP_MEM_POOL_SIZE=65536
diff --git a/boards/shields/st_b_lcd40_dsi1_mb1166/boards/stm32f769i_disco.overlay b/boards/shields/st_b_lcd40_dsi1_mb1166/boards/stm32f769i_disco.overlay
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2024 Linumiz
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/display/panel.h>
+
+/ {
+	lvgl_pointer {
+		compatible = "zephyr,lvgl-pointer-input";
+		input = <&ft5336>;
+	};
+
+	chosen {
+		zephyr,display = &ltdc;
+	};
+};
+
+&ltdc {
+	status = "okay";
+	ext-sdram = <&sdram1>;
+	width = <800>;
+	height = <480>;
+	def-back-color-red = <0>;
+	def-back-color-green = <0>;
+	def-back-color-blue = <0>;
+	pixel-format = <PANEL_PIXEL_FORMAT_RGB_888>;
+};
+
+&mipi_dsi {
+	status = "okay";
+
+	pll-ndiv = <100>;
+	pll-idf = <5>;
+	pll-odf = <0>;
+
+	vs-active-high;
+	hs-active-high;
+	de-active-high;
+};
diff --git a/boards/st/stm32f769i_disco/doc/index.rst b/boards/st/stm32f769i_disco/doc/index.rst
@@ -120,6 +120,9 @@ The Zephyr stm32f769i_disco board configuration supports the following hardware
 +-----------+------------+-------------------------------------+
 | TOUCH     | off-chip   | ft5336(FT6202)                      |
 +-----------+------------+-------------------------------------+
+| DISPLAY   | off-chip   | MIPI DSI Host with shield (MP1166)  |
+|           |            | st_b_lcd40_dsi1_mb1166              |
++-----------+------------+-------------------------------------+
 
 Other hardware features are not yet supported on Zephyr porting.
 
@@ -162,6 +165,29 @@ The STM32F769I Discovery kit has up to 8 UARTs. The Zephyr console output is ass
 which connected to the onboard ST-LINK/V2 Virtual COM port interface. Default communication
 settings are 115200 8N1.
 
+Display
+=======
+
+The STM32F769I Discovery kit has a dedicated DSI LCD connector **CN1**, where
+the MB1166 (B-LCD40-DSI1) display extension board can be mounted. Enable display
+support in Zephyr by adding the shield ``st_b_lcd40_dsi1_mb1166`` or
+``st_b_lcd40_dsi1_mb1166_a09`` to your build command, for example:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/drivers/display
+   :board: stm32f769i_disco
+   :shield: st_b_lcd40_dsi1_mb1166
+   :goals: build flash
+
+.. note::
+   The shield comes in different hardware revisions, the MB1166-A09
+   is utilizing a NT35510 panel controller and shall specifically
+   use ``st_b_lcd40_dsi1_mb1166_a09`` as SHIELD when building
+   Prior versions are utilizing an OTM8009a controller and shall
+   use shield name without postfix, that is: ``st_b_lcd40_dsi1_mb1166``
+   Shield version is printed on a sticker placed below the two bottom
+   mounting holes and has the format: MB1166-Axx
+
 Programming and Debugging
 *************************
 

diff --git a/boards/st/stm32f769i_disco/stm32f769i_disco.dts b/boards/st/stm32f769i_disco/stm32f769i_disco.dts
@@ -80,6 +80,23 @@
 		zephyr,memory-region = "QSPI_AVAIL";
 		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
 	};
+
+	dsi_lcd_qsh_030: connector_dsi_lcd {
+		compatible = "st,dsi-lcd-qsh-030";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map = <4 0 &gpioi 13 0>,	/* TOUCH_INT */
+			   <35 0 &gpiod 12 0>,	/* SCLK/MCLK */
+			   <39 0 &gpiod 11 0>,	/* I2S */
+			   <40 0 &gpiob 9 0>,	/* I2C4_SDA */
+			   <44 0 &gpiob 8 0>,	/* I2C4_SCL */
+			   <45 0 &gpioa 8 0>,	/* CEC_CLK */
+			   <47 0 &gpioa 15 0>,	/* CEC */
+			   <49 0 &gpioj 2 0>,	/* DSI_TE */
+			   <53 0 &gpioi 14 0>,	/* LCD_BL_CTRL */
+			   <57 0 &gpioj 15 0>;	/* DSI_RESET */
+	};
 };
 
 qsh_030_i2c: &i2c4 {