ARM: dts: qcom: Add pm8226 PMIC

The pm8226 is used with Qualcomm platforms, like msm8226.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210911232707.259615-6-luca@z3ntu.xyz

arch/arm/boot/dts/qcom-pm8226.dtsi

+// SPDX-License-Identifier: BSD-3-Clause
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/spmi/spmi.h>
+
+&spmi_bus {
+	pm8226_0: pm8226@0 {
+		compatible = "qcom,pm8226", "qcom,spmi-pmic";
+		reg = <0x0 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pwrkey@800 {
+			compatible = "qcom,pm8941-pwrkey";
+			reg = <0x800>;
+			interrupts = <0x0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
+			debounce = <15625>;
+			bias-pull-up;
+		};
+	};
+
+	pm8226_1: pm8226@1 {
+		compatible = "qcom,pm8226", "qcom,spmi-pmic";
+		reg = <0x1 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};