* [PATCH 4/9] arm: dts: flag omap4430 with needs-cooling for cpu node
[not found] <1374073374-30946-1-git-send-email-eduardo.valentin@ti.com>
@ 2013-07-17 15:02 ` Eduardo Valentin
2013-07-17 15:02 ` [PATCH 5/8] arm: dts: add omap4430 thermal data Eduardo Valentin
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: Eduardo Valentin @ 2013-07-17 15:02 UTC (permalink / raw)
To: devicetree-discuss
Cc: wni, Russell King, Benoît Cousson, linux-pm, Tony Lindgren,
linux-kernel, lm-sensors, Eduardo Valentin, linux-omap,
linux-arm-kernel, l.stach
OMAP4430 devices can reach high temperatures and thus
needs to have cpufreq-cooling on systems running on it.
This patch adds the flag so that cpufreq-cpu0 driver
loads the cooling device to use cpufreq on OMAP4430.
Cc: "Benoît Cousson" <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
arch/arm/boot/dts/omap443x.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index bcf455e..4a4dcc3 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -22,6 +22,7 @@
1008000 1375000
>;
clock-latency = <300000>; /* From legacy driver */
+ needs-cooling; /* make sure we have cpufreq-cooling */
};
};
--
1.8.2.1.342.gfa7285d
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^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 5/8] arm: dts: add omap4430 thermal data
[not found] <1374073374-30946-1-git-send-email-eduardo.valentin@ti.com>
2013-07-17 15:02 ` [PATCH 4/9] arm: dts: flag omap4430 with needs-cooling for cpu node Eduardo Valentin
@ 2013-07-17 15:02 ` Eduardo Valentin
2013-07-17 15:02 ` [PATCH 6/8] arm: dts: flag omap4430 with needs-cooling for cpu node Eduardo Valentin
2013-07-17 15:02 ` [PATCH 7/9] arm: dts: add omap4430 thermal data Eduardo Valentin
3 siblings, 0 replies; 4+ messages in thread
From: Eduardo Valentin @ 2013-07-17 15:02 UTC (permalink / raw)
To: devicetree-discuss
Cc: wni, l.stach, linux-kernel, linux-pm, lm-sensors,
Eduardo Valentin, Benoît Cousson, Tony Lindgren,
Russell King, linux-omap, linux-arm-kernel
This patch changes the dtsi entry on omap4430 to contain
the thermal data. This data will enable the passive
cooling with CPUfreq cooling device at 100C and the
system will do a thermal shutdown at 125C.
Cc: "Benoît Cousson" <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
arch/arm/boot/dts/omap443x.dtsi | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index bcf455e..c9a1c89 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -8,6 +8,7 @@
* kind, whether express or implied.
*/
+#include <dt-bindings/thermal/thermal.h>
#include "omap4.dtsi"
/ {
@@ -26,8 +27,34 @@
};
bandgap {
- reg = <0x4a002260 0x4
- 0x4a00232C 0x4>;
+ reg = <0x4a002260 0x4 0x4a00232C 0x4>;
compatible = "ti,omap4430-bandgap";
+ thermal_zone {
+ type = "CPU";
+ mask = <0x03>; /* trips writability */
+ passive_delay = <250>; /* milliseconds */
+ polling_delay = <1000>; /* milliseconds */
+ governor = "step_wise";
+ trips {
+ alert@100000{
+ temperature = <100000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = <THERMAL_TRIP_PASSIVE>;
+ };
+ crit@125000{
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = <THERMAL_TRIP_CRITICAL>;
+ };
+ };
+ bind_params {
+ action@0{
+ cooling_device = "thermal-cpufreq";
+ weight = <100>; /* percentage */
+ mask = <0x01>;
+ /* no limits, using defaults */
+ };
+ };
+ };
};
};
--
1.8.2.1.342.gfa7285d
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 6/8] arm: dts: flag omap4430 with needs-cooling for cpu node
[not found] <1374073374-30946-1-git-send-email-eduardo.valentin@ti.com>
2013-07-17 15:02 ` [PATCH 4/9] arm: dts: flag omap4430 with needs-cooling for cpu node Eduardo Valentin
2013-07-17 15:02 ` [PATCH 5/8] arm: dts: add omap4430 thermal data Eduardo Valentin
@ 2013-07-17 15:02 ` Eduardo Valentin
2013-07-17 15:02 ` [PATCH 7/9] arm: dts: add omap4430 thermal data Eduardo Valentin
3 siblings, 0 replies; 4+ messages in thread
From: Eduardo Valentin @ 2013-07-17 15:02 UTC (permalink / raw)
To: devicetree-discuss
Cc: wni, l.stach, linux-kernel, linux-pm, lm-sensors,
Eduardo Valentin, Benoît Cousson, Tony Lindgren,
Russell King, linux-omap, linux-arm-kernel
OMAP4430 devices can reach high temperatures and thus
needs to have cpufreq-cooling on systems running on it.
This patch adds the flag so that cpufreq-cpu0 driver
loads the cooling device to use cpufreq on OMAP4430.
Cc: "Benoît Cousson" <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
arch/arm/boot/dts/omap443x.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index c9a1c89..27f0e0f 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -23,6 +23,7 @@
1008000 1375000
>;
clock-latency = <300000>; /* From legacy driver */
+ needs-cooling; /* make sure we have cpufreq-cooling */
};
};
--
1.8.2.1.342.gfa7285d
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 7/9] arm: dts: add omap4430 thermal data
[not found] <1374073374-30946-1-git-send-email-eduardo.valentin@ti.com>
` (2 preceding siblings ...)
2013-07-17 15:02 ` [PATCH 6/8] arm: dts: flag omap4430 with needs-cooling for cpu node Eduardo Valentin
@ 2013-07-17 15:02 ` Eduardo Valentin
3 siblings, 0 replies; 4+ messages in thread
From: Eduardo Valentin @ 2013-07-17 15:02 UTC (permalink / raw)
To: devicetree-discuss
Cc: wni, l.stach, linux-kernel, linux-pm, lm-sensors,
Eduardo Valentin, Benoît Cousson, Tony Lindgren,
Russell King, linux-omap, linux-arm-kernel
This patch changes the dtsi entry on omap4430 to contain
the thermal data. This data will enable the passive
cooling with CPUfreq cooling device at 100C and the
system will do a thermal shutdown at 125C.
Cc: "Benoît Cousson" <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
arch/arm/boot/dts/omap443x.dtsi | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index 4a4dcc3..27f0e0f 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -8,6 +8,7 @@
* kind, whether express or implied.
*/
+#include <dt-bindings/thermal/thermal.h>
#include "omap4.dtsi"
/ {
@@ -27,8 +28,34 @@
};
bandgap {
- reg = <0x4a002260 0x4
- 0x4a00232C 0x4>;
+ reg = <0x4a002260 0x4 0x4a00232C 0x4>;
compatible = "ti,omap4430-bandgap";
+ thermal_zone {
+ type = "CPU";
+ mask = <0x03>; /* trips writability */
+ passive_delay = <250>; /* milliseconds */
+ polling_delay = <1000>; /* milliseconds */
+ governor = "step_wise";
+ trips {
+ alert@100000{
+ temperature = <100000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = <THERMAL_TRIP_PASSIVE>;
+ };
+ crit@125000{
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = <THERMAL_TRIP_CRITICAL>;
+ };
+ };
+ bind_params {
+ action@0{
+ cooling_device = "thermal-cpufreq";
+ weight = <100>; /* percentage */
+ mask = <0x01>;
+ /* no limits, using defaults */
+ };
+ };
+ };
};
};
--
1.8.2.1.342.gfa7285d
--
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^ permalink raw reply related [flat|nested] 4+ messages in thread