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@xxxxxxxxx>
Acked-by: Kevin Hilman <khilman@xxxxxxxxxx>
Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---
v6:
- Rebased on top of v4.1-rc1 for new RFC,
v5:
- No changes,
v4:
- Add Reviewed-by,
- Replace single latency value by list of latencies,
v3:
- No changes,
v2:
- Add Acked-by.
---
Documentation/devicetree/bindings/power/power_domain.txt | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
index 025b5e7df61c630c..d659e5cb39be6057 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -28,6 +28,12 @@ Optional properties:
created by the given provider should be subdomains of the domain
specified by this binding. More details about power domain specifier are
available in the next section.
+ - power-on-latency: List of power-on latencies (in ns), one for each PM
+ domain. If all power-on latencies are identical, the list may be shortened
+ to a single value.
+ - power-off-latency: List of power-off latencies (in ns), one for each PM
+ domain. If all power-off latencies are identical, the list may be shortened
+ to a single value.
Example:
@@ -35,10 +41,12 @@ Example:
compatible = "foo,power-controller";
reg = <0x12340000 0x1000>;
#power-domain-cells = <1>;
+ power-on-latency = <250000 400000 180000>;
+ power-off-latency = <250000 400000 300000>;
};
-The node above defines a power controller that is a PM domain provider and
-expects one cell as its phandle argument.
+The node above defines a power controller that is a PM domain provider for
+3 PM domains, and expects one cell as its phandle argument.
Example 2:
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
