[PATCH V2 4/4] arm64: dts: qcom: ipq5332: add support for the RDP474 variant

[Kathiravan T]

Add the initial device tree support for the Reference Design
Platform(RDP) 474 based on IPQ5332 family of SoC. This patch carries
the support for Console UART, eMMC, I2C and GPIO based buttons.

Signed-off-by: Kathiravan T <quic_kathirav@xxxxxxxxxxx>
---
Changes in V2:
	- Used hypen in node name instead of underscore
	- s/gpio_keys_default/gpio_keys_default_state

 arch/arm64/boot/dts/qcom/Makefile           |   1 +
 arch/arm64/boot/dts/qcom/ipq5332-rdp474.dts | 112 ++++++++++++++++++++
 2 files changed, 113 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/ipq5332-rdp474.dts

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 4f9e81253e18..0f8c763a9bd9 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-ifc6640.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-mi01.2.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp442.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp468.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-rdp474.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq6018-cp01-c1.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk01.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk10-c1.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq5332-rdp474.dts b/arch/arm64/boot/dts/qcom/ipq5332-rdp474.dts
new file mode 100644
index 000000000000..53c68d8c5e5d
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq5332-rdp474.dts
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * IPQ5332 RDP474 board device tree source
+ *
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "ipq5332.dtsi"
+
+/ {
+	model = "Qualcomm Technologies, Inc. IPQ5332 MI01.9";
+	compatible = "qcom,ipq5332-ap-mi01.9", "qcom,ipq5332";
+
+	aliases {
+		serial0 = &blsp1_uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&gpio_keys_default_state>;
+		pinctrl-names = "default";
+
+		button-wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&blsp1_uart0 {
+	pinctrl-0 = <&serial_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&blsp1_i2c1 {
+	clock-frequency  = <400000>;
+	pinctrl-0 = <&i2c_1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&sdhc {
+	bus-width = <4>;
+	max-frequency = <192000000>;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+	non-removable;
+	pinctrl-0 = <&sdc_default_state>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&sleep_clk {
+	clock-frequency = <32000>;
+};
+
+&xo_board {
+	clock-frequency = <24000000>;
+};
+
+/* PINCTRL */
+
+&tlmm {
+	gpio_keys_default_state: gpio-keys-default-state {
+		pins = "gpio35";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-pull-up;
+	};
+
+	i2c_1_pins: i2c-1-state {
+		pins = "gpio29", "gpio30";
+		function = "blsp1_i2c0";
+		drive-strength = <8>;
+		bias-pull-up;
+	};
+
+	sdc_default_state: sdc-default-state {
+		clk-pins {
+			pins = "gpio13";
+			function = "sdc_clk";
+			drive-strength = <8>;
+			bias-disable;
+		};
+
+		cmd-pins {
+			pins = "gpio12";
+			function = "sdc_cmd";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		data-pins {
+			pins = "gpio8", "gpio9", "gpio10", "gpio11";
+			function = "sdc_data";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+	};
+};
-- 
2.17.1