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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2014-03-04 18:28:26 +0100
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2014-07-04 15:50:29 +0200
commitcca8d0596c4c7acb371ea1bc5eee9b404b30516a (patch)
tree95de8f13d8c8634303add8a14a01661995959244 /Documentation/devicetree/bindings/timer
parent3e29b5543f9250bb358169cff0594f58284ece74 (diff)
clocksource: sh_mtu2: Add DT support
Document DT bindings and parse them in the MTU2 driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
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+* Renesas R-Car Multi-Function Timer Pulse Unit 2 (MTU2)
+
+The MTU2 is a multi-purpose, multi-channel timer/counter with configurable
+clock inputs and programmable compare match.
+
+Channels share hardware resources but their counter and compare match value
+are independent. The MTU2 hardware supports five channels indexed from 0 to 4.
+
+Required Properties:
+
+ - compatible: must contain "renesas,mtu2"
+
+ - reg: base address and length of the registers block for the timer module.
+
+ - interrupts: interrupt specifiers for the timer, one for each entry in
+ interrupt-names.
+ - interrupt-names: must contain one entry named "tgi?a" for each enabled
+ channel, where "?" is the channel index expressed as one digit from "0" to
+ "4".
+
+ - clocks: a list of phandle + clock-specifier pairs, one for each entry
+ in clock-names.
+ - clock-names: must contain "fck" for the functional clock.
+
+
+Example: R7S72100 (RZ/A1H) MTU2 node
+
+ mtu2: timer@fcff0000 {
+ compatible = "renesas,mtu2";
+ reg = <0xfcff0000 0x400>;
+ interrupts = <0 139 IRQ_TYPE_LEVEL_HIGH>,
+ <0 146 IRQ_TYPE_LEVEL_HIGH>,
+ <0 150 IRQ_TYPE_LEVEL_HIGH>,
+ <0 154 IRQ_TYPE_LEVEL_HIGH>,
+ <0 159 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tgi0a", "tgi1a", "tgi2a", "tgi3a", "tgi4a";
+ clocks = <&mstp3_clks R7S72100_CLK_MTU2>;
+ clock-names = "fck";
+ };

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