Hi Mark, On Fri, Apr 17, 2015 at 9:46 PM, Mark Rutland <mark.rutland@xxxxxxx> wrote: > On Thu, Apr 16, 2015 at 11:35:38AM +0100, Keita Kobayashi wrote: >> This patch add the ARM CPUs Device Tree binding to document a new >> enable method of Renesas cpuidle. >> >> Signed-off-by: Keita Kobayashi <keita.kobayashi.ym@xxxxxxxxxxx> >> --- >> Documentation/devicetree/bindings/arm/cpus.txt | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt >> index 8b9e0a9..663ee11 100644 >> --- a/Documentation/devicetree/bindings/arm/cpus.txt >> +++ b/Documentation/devicetree/bindings/arm/cpus.txt >> @@ -196,6 +196,7 @@ nodes to be present and contain the properties described below. >> "qcom,gcc-msm8660" >> "qcom,kpss-acc-v1" >> "qcom,kpss-acc-v2" >> + "renesas,rcar-idle" > > The enable-method is about how to bring the CPU up (and potentially > implies other things, like how to take it down again). Thanks for your clarification. I now understand that this is related to SMP boot and CPU Hotplug. > These is no code in this series to that effect, no semantics are > provided, and the name implies this is idle-specific. > > So this doesn't look right, and makes no sense to me. Ok, I somehow (incorrectly?) assumed that the following line in patch 2/5* tied into this: +CPUIDLE_METHOD_OF_DECLARE(rcar, "renesas,rcar-idle", &rcar_cpuidle_ops); [*] [RFC/PATCH v2 2/5] ARM: shmobile: Add cpuidle_ops for R-Car cpuidle But if it is unrelated it should of course be dropped or reworked. Thanks, / magnus -- 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