dt-bindings: mfd: pm8008: Add gpio-ranges and spmi-gpio compatible

Add gpio-ranges and "qcom,spmi-gpio" compatible to match with the
parent qcom,pmic-gpio.yaml binding.
Signed-off-by: satya priya <skakit@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Guru Das Srinagesh <gurus@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml

@@ -53,7 +53,9 @@ patternProperties:
 
     properties:
       compatible:
-        const: qcom,pm8008-gpio
+        items:
+          - const: qcom,pm8008-gpio
+          - const: qcom,spmi-gpio
 
       reg:
         description: Peripheral address of one of the two GPIO peripherals.
@@ -61,6 +63,9 @@ patternProperties:
 
       gpio-controller: true
 
+      gpio-ranges:
+        maxItems: 1
+
       interrupt-controller: true
 
       "#interrupt-cells":
@@ -75,6 +80,7 @@ patternProperties:
       - gpio-controller
       - interrupt-controller
       - "#gpio-cells"
+      - gpio-ranges
       - "#interrupt-cells"
 
     additionalProperties: false
@@ -107,10 +113,11 @@ examples:
         interrupt-parent = <&tlmm>;
         interrupts = <32 IRQ_TYPE_EDGE_RISING>;
 
-        gpio@c000 {
-          compatible = "qcom,pm8008-gpio";
+        pm8008_gpios: gpio@c000 {
+          compatible = "qcom,pm8008-gpio", "qcom,spmi-gpio";
           reg = <0xc000>;
           gpio-controller;
+          gpio-ranges = <&pm8008_gpios 0 0 2>;
           #gpio-cells = <2>;
           interrupt-controller;
           #interrupt-cells = <2>;