From: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
Binding documentation:
- Add future-proof "renesas,hspi-<soctype>" compatible values,
- Add "interrupt-parent", "#address-cells" and "#size-cells" properties,
- Add reference to pinctrl documentation,
- Add example bindings.
r8a7778 and r8a7779 dtsi:
- Add "renesas,hspi-r8a7778" resp. "renesas,hspi-r8a7779" compatible
values,
- Correct reference to parent interrupt controller
(use "interrupt-parent" instead of "interrupt-controller"),
- Add missing "#address-cells" and "#size-cells" properties, which are
needed when populating the SPI buses.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
---
Untested due to lack of hardware
Documentation/devicetree/bindings/spi/sh-hspi.txt | 27 ++++++++++++++++++---
arch/arm/boot/dts/r8a7778.dtsi | 18 +++++++++-----
arch/arm/boot/dts/r8a7779.dtsi | 18 +++++++++-----
3 files changed, 48 insertions(+), 15 deletions(-)
diff --git a/Documentation/devicetree/bindings/spi/sh-hspi.txt b/Documentation/devicetree/bindings/spi/sh-hspi.txt
index 30b57b1c8a13..d43080eb6b3a 100644
--- a/Documentation/devicetree/bindings/spi/sh-hspi.txt
+++ b/Documentation/devicetree/bindings/spi/sh-hspi.txt
@@ -1,7 +1,28 @@
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 of valid soctypes are "r8a7778" (R-Car M1),
+ and "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";
+ };
diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi
index 85c5b3b99f5e..3c6fab5c9702 100644
--- a/arch/arm/boot/dts/r8a7778.dtsi
+++ b/arch/arm/boot/dts/r8a7778.dtsi
@@ -204,26 +204,32 @@
};
hspi0: spi@fffc7000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7778", "renesas,hspi";
reg = <0xfffc7000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 63 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
hspi1: spi@fffc8000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7778", "renesas,hspi";
reg = <0xfffc8000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 84 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
hspi2: spi@fffc6000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7778", "renesas,hspi";
reg = <0xfffc6000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 85 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index d0561d4c7c46..8b1a336ee401 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -256,26 +256,32 @@
};
hspi0: spi@fffc7000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7779", "renesas,hspi";
reg = <0xfffc7000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 73 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
hspi1: spi@fffc8000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7779", "renesas,hspi";
reg = <0xfffc8000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 74 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
hspi2: spi@fffc6000 {
- compatible = "renesas,hspi";
+ compatible = "renesas,hspi-r8a7779", "renesas,hspi";
reg = <0xfffc6000 0x18>;
- interrupt-controller = <&gic>;
+ interrupt-parent = <&gic>;
interrupts = <0 75 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
status = "disabled";
};
};
--
1.7.9.5
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