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; -- 1.7.7.1.488.ge8e1c -- 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/
