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-rw-r--r--Documentation/devicetree/bindings/spi/sh-msiof.txt23
1 files changed, 19 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt
index f24baf3b6cc1..d11c3721e7cd 100644
--- a/Documentation/devicetree/bindings/spi/sh-msiof.txt
+++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt
@@ -6,8 +6,17 @@ Required properties:
"renesas,sh-mobile-msiof" for SH Mobile series.
Examples with soctypes are:
"renesas,msiof-r8a7790" (R-Car H2)
- "renesas,msiof-r8a7791" (R-Car M2)
-- reg : Offset and length of the register set for the device
+ "renesas,msiof-r8a7791" (R-Car M2-W)
+ "renesas,msiof-r8a7792" (R-Car V2H)
+ "renesas,msiof-r8a7793" (R-Car M2-N)
+ "renesas,msiof-r8a7794" (R-Car E2)
+- reg : A list of offsets and lengths of the register sets for
+ the device.
+ If only one register set is present, it is to be used
+ by both the CPU and the DMA engine.
+ If two register sets are present, the first is to be
+ used by the CPU, and the second is to be used by the
+ DMA engine.
- interrupt-parent : The phandle for the interrupt controller that
services interrupts for this device
- interrupts : Interrupt specifier
@@ -17,12 +26,16 @@ Required properties:
Optional properties:
- clocks : Must contain a reference to the functional clock.
- num-cs : Total number of chip-selects (default is 1)
+- dmas : Must contain a list of two references to DMA
+ specifiers, one for transmission, and one for
+ reception.
+- dma-names : Must contain a list of two DMA names, "tx" and "rx".
Optional properties, deprecated for soctype-specific bindings:
- renesas,tx-fifo-size : Overrides the default tx fifo size given in words
(default is 64)
- renesas,rx-fifo-size : Overrides the default rx fifo size given in words
- (default is 64, or 256 on R-Car H2 and M2)
+ (default is 64, or 256 on R-Car Gen2)
Pinctrl properties might be needed, too. See
Documentation/devicetree/bindings/pinctrl/renesas,*.
@@ -31,9 +44,11 @@ Example:
msiof0: spi@e6e20000 {
compatible = "renesas,msiof-r8a7791";
- reg = <0 0xe6e20000 0 0x0064>;
+ reg = <0 0xe6e20000 0 0x0064>, <0 0xe7e20000 0 0x0064>;
interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp0_clks R8A7791_CLK_MSIOF0>;
+ dmas = <&dmac0 0x51>, <&dmac0 0x52>;
+ dma-names = "tx", "rx";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";