boards: frdm_rw612: Add Display support

Add support to work with the LCD-PAR-S035 display
that is connected over the PMOD interface.

Signed-off-by: Mahesh Mahadevan <[email protected]>

Author: mmahadevan108

boards/nxp/frdm_rw612/Kconfig.defconfig

@@ -8,4 +8,21 @@ if BOARD_FRDM_RW612
 config NET_L2_ETHERNET
 	default y if DT_HAS_NXP_ENET_MAC_ENABLED && NETWORKING
 
+if LVGL
+
+# Enable DMA for LCDIC
+config MIPI_DBI_NXP_LCDIC_DMA
+	default y if MIPI_DBI
+
+# Increase descriptor count. LVGL will allocate a 30KB buffer,
+# and the SPI driver sets up RX and TX side. Since LPC DMA has
+# 1KB limit per descriptor, we need 60
+config DMA_MCUX_LPC_NUMBER_OF_DESCRIPTORS
+	default 60
+
+config LV_Z_FLUSH_THREAD
+	default y
+
+endif # LVGL
+
 endif # BOARD_FRDM_RW612

boards/nxp/frdm_rw612/doc/index.rst

@@ -69,6 +69,9 @@ Supported Features
 +-----------+------------+-----------------------------------+
 | Wi-Fi     | on-chip    | Wi-Fi                             |
 +-----------+------------+-----------------------------------+
+| LCDIC     | on-chip    | mipi-dbi. Tested with             |
+|           |            | :ref:`lcd_par_s035`               |
++-----------+------------+-----------------------------------+
 
 The default configuration can be found in the defconfig file:
 

boards/nxp/frdm_rw612/frdm_rw612-pinctrl.dtsi

@@ -60,4 +60,16 @@
 			slew-rate = "normal";
 		};
 	};
+
+	pinmux_lcdic: pinmux_lcdic {
+		group0 {
+			pinmux = <IO_MUX_LCD_SPI_IO44
+				IO_MUX_LCD_SPI_IO45
+				IO_MUX_LCD_SPI_IO46
+				IO_MUX_LCD_SPI_IO47
+				IO_MUX_LCD_SPI_IO48
+				IO_MUX_LCD_SPI_IO49>;
+			slew-rate = "ultra";
+		};
+	};
 };

boards/nxp/frdm_rw612/frdm_rw612_common.dtsi

@@ -45,6 +45,15 @@
 			status = "okay";
 		};
 	};
+
+	nxp_lcd_pmod_connector: lcd-pmod-connector {
+		compatible = "nxp,lcd-pmod";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xfffffff0>;
+		gpio-map-pass-thru = <0 0xf>;
+		gpio-map = <10  0 &hsgpio1 12 0>,  /* Pin 10, LCD and touch reset */
+			   <12  0 &hsgpio0 18 0>;  /* Pin 11, LCD touch INT */
+	};
 };
 
 &flexcomm3 {
@@ -240,3 +249,13 @@ arduino_i2c: &flexcomm2 {
 	pinctrl-0 = <&pinmux_flexcomm2_i2c>;
 	pinctrl-names = "default";
 };
+
+zephyr_mipi_dbi_spi: &lcdic {
+	status = "okay";
+	pinctrl-0 = <&pinmux_lcdic>;
+	pinctrl-names = "default";
+};
+
+nxp_pmod_touch_panel_i2c: &arduino_i2c {
+	status = "okay";
+};

samples/drivers/display/sample.yaml

@@ -107,4 +107,5 @@ tests:
       - platform:frdm_mcxn947/mcxn947/cpu0:SHIELD=lcd_par_s035_8080
       - platform:frdm_mcxn236/mcxn236:SHIELD=lcd_par_s035_8080
       - platform:frdm_mcxa156/mcxa156:SHIELD=lcd_par_s035_8080
+      - platform:frdm_rw612:SHIELD=lcd_par_s035_spi
       - platform:ek_ra8d1:SHIELD=rtkmipilcdb00000be