imx53-qsb: Import devicetree files from Linux

Import the imx53-qsb devicetree files from Linux kernel
version 5.11-rc7.

This is in preparation for converting the mx53loco_defconfig
target to driver model.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
diff --git a/arch/arm/dts/imx53-qsb.dts b/arch/arm/dts/imx53-qsb.dts
new file mode 100644
index 0000000..6831836
--- /dev/null
+++ b/arch/arm/dts/imx53-qsb.dts
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2011 Freescale Semiconductor, Inc.
+// Copyright 2011 Linaro Ltd.
+
+/dts-v1/;
+#include "imx53-qsb-common.dtsi"
+
+/ {
+	model = "Freescale i.MX53 Quick Start Board";
+	compatible = "fsl,imx53-qsb", "fsl,imx53";
+};
+
+&i2c1 {
+	pmic: dialog@48 {
+		compatible = "dlg,da9053-aa", "dlg,da9052";
+		reg = <0x48>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>; /* low-level active IRQ at GPIO7_11 */
+
+		regulators {
+			buck1_reg: buck1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <2075000>;
+				regulator-always-on;
+			};
+
+			buck2_reg: buck2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <2075000>;
+				regulator-always-on;
+			};
+
+			buck3_reg: buck3 {
+				regulator-min-microvolt = <925000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-always-on;
+			};
+
+			buck4_reg: buck4 {
+				regulator-min-microvolt = <925000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-always-on;
+			};
+
+			ldo1_reg: ldo1 {
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2_reg: ldo2 {
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo3_reg: ldo3 {
+				regulator-min-microvolt = <1725000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			ldo4_reg: ldo4 {
+				regulator-min-microvolt = <1725000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			ldo5_reg: ldo5 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-always-on;
+			};
+
+			ldo6_reg: ldo6 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-always-on;
+			};
+
+			ldo7_reg: ldo7 {
+				regulator-min-microvolt = <2750000>;
+				regulator-max-microvolt = <2750000>;
+			};
+
+			ldo8_reg: ldo8 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-always-on;
+			};
+
+			ldo9_reg: ldo9 {
+				regulator-min-microvolt = <1250000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-always-on;
+			};
+
+			ldo10_reg: ldo10 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&tve {
+	dac-supply = <&ldo7_reg>;
+};