Thread (45 messages) flat view 45 messages, 6 authors, 2015-01-29

Re: [RFC PATCH v6 9/9] of: thermal: Introduce sustainable power for a thermal zone

From: Javi Merino <hidden>
Date: 2015-01-06 13:29:31
Also in: lkml

On Tue, Jan 06, 2015 at 01:13:03PM +0000, Eduardo Valentin wrote:
On Tue, Jan 06, 2015 at 09:42:15AM +0000, Javi Merino wrote:
quoted
On Fri, Jan 02, 2015 at 03:53:00PM +0000, Eduardo Valentin wrote:
quoted
On Fri, Dec 05, 2014 at 07:04:20PM +0000, Javi Merino wrote:
quoted
From: Punit Agrawal <redacted>

Introduce an optional property called, sustainable-power, which
represents the power (in mW) which the thermal zone can safely
dissipate.

If provided the property is parsed and associated with the thermal
zone via the thermal zone parameters.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Punit Agrawal <redacted>
---
 Documentation/devicetree/bindings/thermal/thermal.txt | 4 ++++
 drivers/thermal/of-thermal.c                          | 4 ++++
 2 files changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index f5db6b72a36f..c6eb9a8d2aed 100644
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt
@@ -167,6 +167,10 @@ Optional property:
 			by means of sensor ID. Additional coefficients are
 			interpreted as constant offset.
 
+- sustainable-power:	An estimate of the sustainable power (in mW) that the
+  Type: unsigned	thermal zone can dissipate.
+  Size: one cell
+
Please, include examples of this property, as you mentioned in the
governor documentation.
I'd rather put a pointer to the documentation instead of repeating the
same thing here.  What do you think?
The point is that device tree and Linux are supposed to be independent
entities. I would prefer if you could extend the explanation of what is
'sustainable power' in the above entry. On top of that, pick one of the
existing examples and extend it to include the 'sustainable-power' property,
with a comment explaining it, for instance.
Ok, I'll do that.

Cheers,
Javi
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