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authorGeert Uytterhoeven <geert+renesas@linux-m68k.org>2014-03-11 09:40:51 (GMT)
committerMark Brown <broonie@linaro.org>2014-03-11 10:38:41 (GMT)
commitc3003ce144fe0279e4299030b1cfad6f4b39116a (patch)
treebeee763e0cf9ee50b9a03b5a02abceba02acfae9 /Documentation/devicetree/bindings/spi
parente428a420078eac26039b53af464355332809be52 (diff)
spi: sh-spi: Improve bindings
- Add future-proof "renesas,hspi-<soctype>" compatible values, - Add missing "interrupt-parent", "#address-cells", and "#size-cells" properties, - Add reference to pinctrl documentation, - Add example bindings. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
-rw-r--r--Documentation/devicetree/bindings/spi/sh-hspi.txt28
1 files changed, 25 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/spi/sh-hspi.txt b/Documentation/devicetree/bindings/spi/sh-hspi.txt
index 30b57b1..319bad4 100644
--- a/Documentation/devicetree/bindings/spi/sh-hspi.txt
+++ b/Documentation/devicetree/bindings/spi/sh-hspi.txt
@@ -1,7 +1,29 @@
Renesas HSPI.
Required properties:
-- compatible : "renesas,hspi"
-- reg : Offset and length of the register set for the device
-- interrupts : interrupt line used by HSPI
+- compatible : "renesas,hspi-<soctype>", "renesas,hspi" as fallback.
+ Examples with soctypes are:
+ - "renesas,hspi-r8a7778" (R-Car M1)
+ - "renesas,hspi-r8a7779" (R-Car H1)
+- reg : Offset and length of the register set for the device
+- interrupt-parent : The phandle for the interrupt controller that
+ services interrupts for this device
+- interrupts : Interrupt specifier
+- #address-cells : Must be <1>
+- #size-cells : Must be <0>
+
+Pinctrl properties might be needed, too. See
+Documentation/devicetree/bindings/pinctrl/renesas,*.
+
+Example:
+
+ hspi0: spi@fffc7000 {
+ compatible = "renesas,hspi-r8a7778", "renesas,hspi";
+ reg = <0xfffc7000 0x18>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 63 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };

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