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author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-03-04 18:28:26 +0100 |
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committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-07-04 15:50:29 +0200 |
commit | cca8d0596c4c7acb371ea1bc5eee9b404b30516a (patch) | |
tree | 95de8f13d8c8634303add8a14a01661995959244 /Documentation | |
parent | 3e29b5543f9250bb358169cff0594f58284ece74 (diff) | |
download | op-kernel-dev-cca8d0596c4c7acb371ea1bc5eee9b404b30516a.zip op-kernel-dev-cca8d0596c4c7acb371ea1bc5eee9b404b30516a.tar.gz |
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>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/timer/renesas,mtu2.txt | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/timer/renesas,mtu2.txt b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt new file mode 100644 index 0000000..917453f --- /dev/null +++ b/Documentation/devicetree/bindings/timer/renesas,mtu2.txt @@ -0,0 +1,39 @@ +* 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"; + }; |