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[PATCH/RFC,v2,01/12] PM / Domains: Add DT bindings for power-on/off latencies

Message ID 1410893339-6361-2-git-send-email-geert+renesas@glider.be
State Superseded, archived
Headers show

Commit Message

Geert Uytterhoeven Sept. 16, 2014, 6:48 p.m. UTC 
PM domain power on/off-latencies are properties of the hardware.
In legacy code, they're specified from platform code.
On DT platforms, their values should come from DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kevin Hilman <khilman@linaro.org>
---
v2:
  - Add Acked-by
---
 Documentation/devicetree/bindings/power/power_domain.txt | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
index 98c16672ab5f49e0..7bc421d84367d636 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -19,12 +19,18 @@  Required properties:
    providing multiple PM domains (e.g. power controllers), but can be any value
    as specified by device tree binding documentation of particular provider.
 
+Optional properties:
+ - power-on-latency: Power-on latency of the PM domain, in ns,
+ - power-off-latency: Power-off latency of the PM domain, in ns.
+
 Example:
 
 	power: power-controller@12340000 {
 		compatible = "foo,power-controller";
 		reg = <0x12340000 0x1000>;
 		#power-domain-cells = <1>;
+		power-on-latency = <250000>;
+		power-off-latency = <250000>;
 	};
 
 The node above defines a power controller that is a PM domain provider and