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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2016-04-13 16:44:17 +0200 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2016-04-15 11:00:24 +1000 |
| commit | a85fff3b01ac1d67d9ef15672a9b5b5a4a44204e (patch) | |
| tree | b2566f130ecbda2184d937d1d5d18a7984a51d8b | |
| parent | f55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff) | |
| download | linux-a85fff3b01ac1d67d9ef15672a9b5b5a4a44204e.tar.gz linux-a85fff3b01ac1d67d9ef15672a9b5b5a4a44204e.tar.bz2 linux-a85fff3b01ac1d67d9ef15672a9b5b5a4a44204e.zip | |
PM / Domains: Add DT bindings for the R-Car System Controller
The Renesas R-Car System Controller provides power management for the
CPU cores and various coprocessors, following the generic PM domain
bindings in Documentation/devicetree/bindings/power/power_domain.txt.
This supports R-Car Gen1 (H1), Gen2, and Gen3.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| -rw-r--r-- | Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt new file mode 100644 index 000000000000..b74e4d4785ab --- /dev/null +++ b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt @@ -0,0 +1,48 @@ +DT bindings for the Renesas R-Car System Controller + +== System Controller Node == + +The R-Car System Controller provides power management for the CPU cores and +various coprocessors. + +Required properties: + - compatible: Must contain exactly one of the following: + - "renesas,r8a7779-sysc" (R-Car H1) + - "renesas,r8a7790-sysc" (R-Car H2) + - "renesas,r8a7791-sysc" (R-Car M2-W) + - "renesas,r8a7792-sysc" (R-Car V2H) + - "renesas,r8a7793-sysc" (R-Car M2-N) + - "renesas,r8a7794-sysc" (R-Car E2) + - "renesas,r8a7795-sysc" (R-Car H3) + - reg: Address start and address range for the device. + - #power-domain-cells: Must be 1. + + +Example: + + sysc: system-controller@e6180000 { + compatible = "renesas,r8a7791-sysc"; + reg = <0 0xe6180000 0 0x0200>; + #power-domain-cells = <1>; + }; + + +== PM Domain Consumers == + +Devices residing in a power area must refer to that power area, as documented +by the generic PM domain bindings in +Documentation/devicetree/bindings/power/power_domain.txt. + +Required properties: + - power-domains: A phandle and symbolic PM domain specifier, as defined in + <dt-bindings/power/r8a77*-sysc.h>. + + +Example: + + L2_CA15: cache-controller@0 { + compatible = "cache"; + power-domains = <&sysc R8A7791_PD_CA15_SCU>; + cache-unified; + cache-level = <2>; + }; |