On Fri, 2013-03-22 at 17:13 -0400, Eduardo Valentin wrote: > For boards that provide a PCB sensor close to SoC junction > temperature, it is possible to remove the cumulative heat > reported by the SoC temperature sensor. > > This patch changes the extrapolation computation to consider > an external sensor in the extrapolation equations. > > Signed-off-by: Eduardo Valentin <[email protected]> > --- > drivers/staging/ti-soc-thermal/ti-thermal-common.c | 5 ++--- > 1 files changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/staging/ti-soc-thermal/ti-thermal-common.c > b/drivers/staging/ti-soc-thermal/ti-thermal-common.c > index 231c549..52d3c1b 100644 > --- a/drivers/staging/ti-soc-thermal/ti-thermal-common.c > +++ b/drivers/staging/ti-soc-thermal/ti-thermal-common.c > @@ -92,10 +92,9 @@ static inline int ti_thermal_get_temp(struct > thermal_zone_device *thermal, > if (ret) > return ret; > > - pcb_temp = 0; > - /* TODO: Introduce pcb temperature lookup */ > + ret = thermal_zone_lookup_temperature("pcb", &pcb_temp); > /* In case pcb zone is available, use the extrapolation rule with it */ > - if (pcb_temp) { > + if (!ret) { > tmp -= pcb_temp; > slope = s->slope_pcb; > constant = s->constant_pcb;
I can not see this piece of code. But I assume that the thermal_zone_device is registered in another driver, right? or else you can use the thermal_zone_device pointer directly instead. thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
