[PATCH 1/2] thermal: Add support for thermal sensor for Kirkwood SoC
From: Nobuhiro Iwamatsu <hidden>
Date: 2012-12-14 21:25:39
Also in:
linux-pm
From: Nobuhiro Iwamatsu <hidden>
Date: 2012-12-14 21:25:39
Also in:
linux-pm
Hi, On Sat, Dec 8, 2012 at 9:08 AM, Russell King - ARM Linux [off-list ref] wrote:
On Fri, Dec 07, 2012 at 04:59:04PM -0700, Jason Gunthorpe wrote:quoted
On Fri, Dec 07, 2012 at 04:24:59PM -0700, Jason Gunthorpe wrote:quoted
On Sat, Dec 08, 2012 at 08:15:50AM +0900, Nobuhiro Iwamatsu wrote:quoted
Some kirkwood SoC has thermal sensor. This patch adds support for 88F6282 and 88F6283.Thanks! I was just about to write this.. Looks good here.Ah, looking closer: $ cat /sys/class/thermal/thermal_zone0/temp 37 That should be 37000, the value out of the driver should be in milli-Celsius. I'd use this equation instead: *temp = ((322 - reg) * 10000 * 1000) / 13625;Be careful of math overflows... make sure you do this calculation using unsigned arithmetic as temperatures above 157 degress will cause this to look like a negative number using signed math... However, that probably won't ever be noticed because at 157 degrees, you'll definitely be outside the operating limits of the device.
Oh, OK. I would like to thank you pointed out.
I will fix.
Best regards,
Nobuhiro
--
Nobuhiro Iwamatsu
iwamatsu at {nigauri.org / debian.org}
GPG ID: 40AD1FA6