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From: Eduardo Valentin <eduardo.valentin@ti.com>
To: Zhang Rui <rui.zhang@intel.com>
Cc: <linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Eduardo Valentin <eduardo.valentin@ti.com>
Subject: [PATCH 2/2] staging: ti-soc-thermal: remove external heat while extrapolating hotspot
Date: Fri, 22 Mar 2013 17:13:07 -0400	[thread overview]
Message-ID: <1363986787-28147-3-git-send-email-eduardo.valentin@ti.com> (raw)
In-Reply-To: <1363986787-28147-1-git-send-email-eduardo.valentin@ti.com>

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 <eduardo.valentin@ti.com>
---
 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


WARNING: multiple messages have this Message-ID (diff)
From: Eduardo Valentin <eduardo.valentin@ti.com>
To: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Eduardo Valentin <eduardo.valentin@ti.com>
Subject: [PATCH 2/2] staging: ti-soc-thermal: remove external heat while extrapolating hotspot
Date: Fri, 22 Mar 2013 17:13:07 -0400	[thread overview]
Message-ID: <1363986787-28147-3-git-send-email-eduardo.valentin@ti.com> (raw)
In-Reply-To: <1363986787-28147-1-git-send-email-eduardo.valentin@ti.com>

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 <eduardo.valentin@ti.com>
---
 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


  parent reply	other threads:[~2013-03-22 21:14 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-22 21:13 [PATCH 0/2] thermal: lookup temperature Eduardo Valentin
2013-03-22 21:13 ` Eduardo Valentin
2013-03-22 21:13 ` [PATCH 1/2] thermal: introduce thermal_zone_lookup_temperature helper function Eduardo Valentin
2013-03-22 21:13   ` Eduardo Valentin
2013-03-25  6:10   ` Zhang Rui
2013-03-25  6:20     ` R, Durgadoss
2013-03-25  6:20       ` R, Durgadoss
2013-03-25  6:26       ` Zhang Rui
2013-03-25 11:25         ` Eduardo Valentin
2013-03-22 21:13 ` Eduardo Valentin [this message]
2013-03-22 21:13   ` [PATCH 2/2] staging: ti-soc-thermal: remove external heat while extrapolating hotspot Eduardo Valentin
2013-03-25  6:23   ` Zhang Rui
2013-03-25 11:18     ` Eduardo Valentin
2013-03-25 11:18       ` Eduardo Valentin
2013-04-24 18:16 [PATCH 0/2] staging: ti-soc-thermal: couple of fixes Eduardo Valentin
2013-04-24 18:16 ` [PATCH 2/2] staging: ti-soc-thermal: remove external heat while extrapolating hotspot Eduardo Valentin
2013-04-24 18:16   ` Eduardo Valentin

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