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authorSimon Horman <horms+renesas@verge.net.au>2016-12-07 13:39:36 +0300
committerWolfram Sang <wsa@the-dreams.de>2016-12-12 00:52:28 +0300
commitb880ccaf1742c28e91534ad7820c4405c04dabf9 (patch)
treed55c51108c3aac137a1f0cc29b35e1c17cfb38c1 /Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
parentad4a8dc3fec6485b18654d1090ef8012fcfc37b8 (diff)
downloadlinux-b880ccaf1742c28e91534ad7820c4405c04dabf9.tar.xz
i2c: sh_mobile: Add per-Generation fallback bindings
Add per-Generation fallback bindings for R-Car SoCs. This is in keeping with the compatibility string scheme is being adopted for drivers for Renesas SoCs. Also, improve readability by listing the rmobile fallback compatibility string after the more-specific compatibility strings they provide a fallback for. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt17
1 files changed, 14 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
index 214f94c25d37..7716acc55dec 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -1,8 +1,7 @@
Device tree configuration for Renesas IIC (sh_mobile) driver
Required properties:
-- compatible : "renesas,iic-<soctype>". "renesas,rmobile-iic" as fallback
- Examples with soctypes are:
+- compatible :
- "renesas,iic-r8a73a4" (R-Mobile APE6)
- "renesas,iic-r8a7740" (R-Mobile A1)
- "renesas,iic-r8a7790" (R-Car H2)
@@ -12,6 +11,17 @@ Required properties:
- "renesas,iic-r8a7794" (R-Car E2)
- "renesas,iic-r8a7795" (R-Car H3)
- "renesas,iic-sh73a0" (SH-Mobile AG5)
+ - "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device)
+ - "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
+ - "renesas,rmobile-iic" (generic device)
+
+ When compatible with a generic R-Car version, nodes
+ must list the SoC-specific version corresponding to
+ the platform first followed by the generic R-Car
+ version.
+
+ renesas,rmobile-iic must always follow.
+
- reg : address start and address range size of device
- interrupts : interrupt of device
- clocks : clock for device
@@ -31,7 +41,8 @@ Pinctrl properties might be needed, too. See there.
Example:
iic0: i2c@e6500000 {
- compatible = "renesas,iic-r8a7790", "renesas,rmobile-iic";
+ compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
+ "renesas,rmobile-iic";
reg = <0 0xe6500000 0 0x425>;
interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp3_clks R8A7790_CLK_IIC0>;