dt-bindings: mmc: sdhci-pxa: add pxav1

Add a compatible for the pxav1 controller in the PXA168, along with
optional pinctrl properties to use for an errata workaround.
Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230116194401.20372-9-doug@schmorgal.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml

@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Marvell PXA SDHCI v2/v3
+title: Marvell PXA SDHCI v1/v2/v3
 
 maintainers:
   - Ulf Hansson <ulf.hansson@linaro.org>
@@ -34,6 +34,7 @@ allOf:
 properties:
   compatible:
     enum:
+      - mrvl,pxav1-mmc
       - mrvl,pxav2-mmc
       - mrvl,pxav3-mmc
       - marvell,armada-380-sdhci
@@ -61,6 +62,22 @@ properties:
       - const: io
       - const: core
 
+  pinctrl-names:
+    description:
+      Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin between
+      SDIO CMD and GPIO mode.
+    items:
+      - const: default
+      - const: state_cmd_gpio
+
+  pinctrl-0:
+    description:
+      Should contain default pinctrl.
+
+  pinctrl-1:
+    description:
+      Should switch CMD pin to GPIO mode as a high output.
+
   mrvl,clk-delay-cycles:
     description: Specify a number of cycles to delay for tuning.
     $ref: /schemas/types.yaml#/definitions/uint32