This patch adds DT bindings to declare holes in syscon register maps.
Signed-off-by: Seraphin Bonnaffe <[email protected]>
---
Documentation/devicetree/bindings/mfd/syscon.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt
b/Documentation/devicetree/bindings/mfd/syscon.txt
index fe8150b..80ab9ca 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.txt
+++ b/Documentation/devicetree/bindings/mfd/syscon.txt
@@ -13,8 +13,13 @@ Required properties:
- compatible: Should contain "syscon".
- reg: the register region can be accessed from syscon
+Optional properties:
+- holes: Register regions that cannot be accessed within reg range.
+ Each hole is described with its offset address, followed by its size.
+
Examples:
gpr: iomuxc-gpr@020e0000 {
compatible = "fsl,imx6q-iomuxc-gpr", "syscon";
reg = <0x020e0000 0x38>;
+ holes = <0x000c 0x8 0x020 0x4>;
};
--
1.9.1
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