On 08/26/2014 08:08 PM, Eduardo Valentin wrote: > Hi, > > On Tue, Aug 26, 2014 at 11:03:21AM +0800, Wei Ni wrote: >> On 08/25/2014 07:07 PM, Eduardo Valentin wrote: >>> Hello Wei Ni, >>> >>> On Mon, Aug 25, 2014 at 02:29:47PM +0800, Wei Ni wrote: >>>> Add more description for the "polling-delay" property. >>>> Set "trips" and "cooling maps" as optional property, because >>>> if missing these two sub-nodes, the thermal zone device still >>>> work properly. >>>> >>>> Signed-off-by: Wei Ni <wni@xxxxxxxxxx> >>>> --- >>>> Documentation/devicetree/bindings/thermal/thermal.txt | 10 ++++++---- >>>> 1 file changed, 6 insertions(+), 4 deletions(-) >>>> >>>> diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt >>>> index f5db6b7..e3d3ed9 100644 >>>> --- a/Documentation/devicetree/bindings/thermal/thermal.txt >>>> +++ b/Documentation/devicetree/bindings/thermal/thermal.txt >>>> @@ -136,8 +136,8 @@ containing trip nodes and one sub-node containing all the zone cooling maps. >>>> >>>> Required properties: >>>> - polling-delay: The maximum number of milliseconds to wait between polls >>>> - Type: unsigned when checking this thermal zone. >>>> - Size: one cell >>>> + Type: unsigned when checking this thermal zone. If this value is 0, the >>>> + Size: one cell driver will not run polling queue, but just cancel it. >>>> >>> >>> The description above is specific to Linux kernel implementation >>> nomenclature. DT description needs to be OS agnostic. >> >> Normally, the user may think a delay of 0 means that software >> continually polls this zone, but in here it mean no polling. May be it's >> better to add this description. >> > > Sure, I am fine adding it. Just please do not use Linux specific > nomenclature. Yes, you are right, I will just add "Cancel the polling if the delay is 0". Wei. > >>> >>>> - polling-delay-passive: The maximum number of milliseconds to wait >>>> Type: unsigned between polls when performing passive cooling. >>>> @@ -148,14 +148,16 @@ Required properties: >>>> phandles + sensor >>>> specifier >>>> >>>> +Optional property: >>>> - trips: A sub-node which is a container of only trip point nodes >>>> Type: sub-node required to describe the thermal zone. >>>> >>>> - cooling-maps: A sub-node which is a container of only cooling device >>>> Type: sub-node map nodes, used to describe the relation between trips >>>> - and cooling devices. >>>> + and cooling devices. If missing the "trips" property, >>>> + This sub-node will not be parsed, because no trips can >>>> + be bound to cooling devices. >>> >>> Do you mean if the thermal zone misses the "trips" property? Actually, >>> the binding describes both, cooling-maps and trips, as required >>> properties. Thus, both needs to be in place to consider the thermal zone >>> as a proper described zone. >>> >>>> >>>> -Optional property: >>>> - coefficients: An array of integers (one signed cell) containing >>>> Type: array coefficients to compose a linear relation between >>>> Elem size: one cell the sensors listed in the thermal-sensors property. >>>> -- >>>> 1.8.1.5 >>>> >> -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
