From: Yuantian Tang <[email protected]>
There are 2 thermal zones in ls1088a soc. Add the other thermal zone
node to enable it.
Also update the values in calibration table to make the temperatures
monitored more precise.
Signed-off-by: Yuantian Tang <[email protected]>
---
.../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100 +++++++++++-------
1 file changed, 62 insertions(+), 38 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 36a799554620..ccbbc23e6c85 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -129,19 +129,19 @@
};
thermal-zones {
- cpu_thermal: cpu-thermal {
+ core-cluster {
polling-delay-passive = <1000>;
polling-delay = <5000>;
thermal-sensors = <&tmu 0>;
trips {
- cpu_alert: cpu-alert {
+ core_cluster_alert: core-cluster-alert {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};
- cpu_crit: cpu-crit {
+ core_cluster_crit: core-cluster-crit {
temperature = <95000>;
hysteresis = <2000>;
type = "critical";
@@ -150,7 +150,7 @@
cooling-maps {
map0 {
- trip = <&cpu_alert>;
+ trip = <&core_cluster_alert>;
cooling-device =
<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
@@ -163,6 +163,26 @@
};
};
};
+
+ soc {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+ thermal-sensors = <&tmu 1>;
+
+ trips {
+ soc-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ soc-crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
};
timer {
@@ -209,45 +229,49 @@
compatible = "fsl,qoriq-tmu";
reg = <0x0 0x1f80000 0x0 0x10000>;
interrupts = <0 23 0x4>;
- fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x30062>;
+ fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x70062>;
fsl,tmu-calibration =
/* Calibration data group 1 */
- <0x00000000 0x00000026
- 0x00000001 0x0000002d
- 0x00000002 0x00000032
- 0x00000003 0x00000039
- 0x00000004 0x0000003f
- 0x00000005 0x00000046
- 0x00000006 0x0000004d
- 0x00000007 0x00000054
- 0x00000008 0x0000005a
- 0x00000009 0x00000061
- 0x0000000a 0x0000006a
- 0x0000000b 0x00000071
+ <0x00000000 0x00000023
+ 0x00000001 0x0000002a
+ 0x00000002 0x00000030
+ 0x00000003 0x00000037
+ 0x00000004 0x0000003d
+ 0x00000005 0x00000044
+ 0x00000006 0x0000004a
+ 0x00000007 0x00000051
+ 0x00000008 0x00000057
+ 0x00000009 0x0000005e
+ 0x0000000a 0x00000064
+ 0x0000000b 0x0000006b
/* Calibration data group 2 */
- 0x00010000 0x00000025
- 0x00010001 0x0000002c
- 0x00010002 0x00000035
- 0x00010003 0x0000003d
- 0x00010004 0x00000045
- 0x00010005 0x0000004e
- 0x00010006 0x00000057
- 0x00010007 0x00000061
- 0x00010008 0x0000006b
- 0x00010009 0x00000076
+ 0x00010000 0x00000022
+ 0x00010001 0x0000002a
+ 0x00010002 0x00000032
+ 0x00010003 0x0000003a
+ 0x00010004 0x00000042
+ 0x00010005 0x0000004a
+ 0x00010006 0x00000052
+ 0x00010007 0x0000005a
+ 0x00010008 0x00000062
+ 0x00010009 0x0000006a
/* Calibration data group 3 */
- 0x00020000 0x00000029
- 0x00020001 0x00000033
- 0x00020002 0x0000003d
- 0x00020003 0x00000049
- 0x00020004 0x00000056
- 0x00020005 0x00000061
- 0x00020006 0x0000006d
+ 0x00020000 0x00000021
+ 0x00020001 0x0000002b
+ 0x00020002 0x00000035
+ 0x00020003 0x00000040
+ 0x00020004 0x0000004a
+ 0x00020005 0x00000054
+ 0x00020006 0x0000005e
/* Calibration data group 4 */
- 0x00030000 0x00000021
- 0x00030001 0x0000002a
- 0x00030002 0x0000003c
- 0x00030003 0x0000004e>;
+ 0x00030000 0x00000010
+ 0x00030001 0x0000001c
+ 0x00030002 0x00000027
+ 0x00030003 0x00000032
+ 0x00030004 0x0000003e
+ 0x00030005 0x00000049
+ 0x00030006 0x00000054
+ 0x00030007 0x00000060>;
little-endian;
#thermal-sensor-cells = <1>;
};
--
2.17.1
On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
>
> From: Yuantian Tang <[email protected]>
>
> There are 2 thermal zones in ls1088a soc. Add the other thermal zone
> node to enable it.
> Also update the values in calibration table to make the temperatures
> monitored more precise.
>
> Signed-off-by: Yuantian Tang <[email protected]>
> ---
> .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100 +++++++++++-------
> 1 file changed, 62 insertions(+), 38 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> index 36a799554620..ccbbc23e6c85 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> @@ -129,19 +129,19 @@
> };
>
> thermal-zones {
> - cpu_thermal: cpu-thermal {
> + core-cluster {
> polling-delay-passive = <1000>;
> polling-delay = <5000>;
> thermal-sensors = <&tmu 0>;
>
> trips {
> - cpu_alert: cpu-alert {
> + core_cluster_alert: core-cluster-alert {
> temperature = <85000>;
> hysteresis = <2000>;
> type = "passive";
> };
>
> - cpu_crit: cpu-crit {
> + core_cluster_crit: core-cluster-crit {
> temperature = <95000>;
> hysteresis = <2000>;
> type = "critical";
> @@ -150,7 +150,7 @@
>
> cooling-maps {
> map0 {
> - trip = <&cpu_alert>;
> + trip = <&core_cluster_alert>;
> cooling-device =
> <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> @@ -163,6 +163,26 @@
> };
> };
> };
> +
> + soc {
> + polling-delay-passive = <1000>;
> + polling-delay = <5000>;
> + thermal-sensors = <&tmu 1>;
> +
> + trips {
> + soc-alert {
> + temperature = <85000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> +
> + soc-crit {
> + temperature = <95000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + };
You should also add a cooling-maps section for this thermal zone given
that it has a passive trip type. Otherwise there is no use for a
passive trip type.
> };
>
> timer {
> @@ -209,45 +229,49 @@
> compatible = "fsl,qoriq-tmu";
> reg = <0x0 0x1f80000 0x0 0x10000>;
> interrupts = <0 23 0x4>;
> - fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x30062>;
> + fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x70062>;
> fsl,tmu-calibration =
> /* Calibration data group 1 */
> - <0x00000000 0x00000026
> - 0x00000001 0x0000002d
> - 0x00000002 0x00000032
> - 0x00000003 0x00000039
> - 0x00000004 0x0000003f
> - 0x00000005 0x00000046
> - 0x00000006 0x0000004d
> - 0x00000007 0x00000054
> - 0x00000008 0x0000005a
> - 0x00000009 0x00000061
> - 0x0000000a 0x0000006a
> - 0x0000000b 0x00000071
> + <0x00000000 0x00000023
> + 0x00000001 0x0000002a
> + 0x00000002 0x00000030
> + 0x00000003 0x00000037
> + 0x00000004 0x0000003d
> + 0x00000005 0x00000044
> + 0x00000006 0x0000004a
> + 0x00000007 0x00000051
> + 0x00000008 0x00000057
> + 0x00000009 0x0000005e
> + 0x0000000a 0x00000064
> + 0x0000000b 0x0000006b
> /* Calibration data group 2 */
> - 0x00010000 0x00000025
> - 0x00010001 0x0000002c
> - 0x00010002 0x00000035
> - 0x00010003 0x0000003d
> - 0x00010004 0x00000045
> - 0x00010005 0x0000004e
> - 0x00010006 0x00000057
> - 0x00010007 0x00000061
> - 0x00010008 0x0000006b
> - 0x00010009 0x00000076
> + 0x00010000 0x00000022
> + 0x00010001 0x0000002a
> + 0x00010002 0x00000032
> + 0x00010003 0x0000003a
> + 0x00010004 0x00000042
> + 0x00010005 0x0000004a
> + 0x00010006 0x00000052
> + 0x00010007 0x0000005a
> + 0x00010008 0x00000062
> + 0x00010009 0x0000006a
> /* Calibration data group 3 */
> - 0x00020000 0x00000029
> - 0x00020001 0x00000033
> - 0x00020002 0x0000003d
> - 0x00020003 0x00000049
> - 0x00020004 0x00000056
> - 0x00020005 0x00000061
> - 0x00020006 0x0000006d
> + 0x00020000 0x00000021
> + 0x00020001 0x0000002b
> + 0x00020002 0x00000035
> + 0x00020003 0x00000040
> + 0x00020004 0x0000004a
> + 0x00020005 0x00000054
> + 0x00020006 0x0000005e
> /* Calibration data group 4 */
> - 0x00030000 0x00000021
> - 0x00030001 0x0000002a
> - 0x00030002 0x0000003c
> - 0x00030003 0x0000004e>;
> + 0x00030000 0x00000010
> + 0x00030001 0x0000001c
> + 0x00030002 0x00000027
> + 0x00030003 0x00000032
> + 0x00030004 0x0000003e
> + 0x00030005 0x00000049
> + 0x00030006 0x00000054
> + 0x00030007 0x00000060>;
> little-endian;
> #thermal-sensor-cells = <1>;
> };
> --
> 2.17.1
>
> -----Original Message-----
> From: Amit Kucheria <[email protected]>
> Sent: 2020年6月30日 13:12
> To: Andy Tang <[email protected]>
> Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> Herring <[email protected]>; lakml <[email protected]>;
> open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <[email protected]>; LKML <[email protected]>
> Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal zone
> support
>
> Caution: EXT Email
>
> On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> >
> > From: Yuantian Tang <[email protected]>
> >
> > There are 2 thermal zones in ls1088a soc. Add the other thermal zone
> > node to enable it.
> > Also update the values in calibration table to make the temperatures
> > monitored more precise.
> >
> > Signed-off-by: Yuantian Tang <[email protected]>
> > ---
> > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > +++++++++++-------
> > 1 file changed, 62 insertions(+), 38 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > index 36a799554620..ccbbc23e6c85 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > @@ -129,19 +129,19 @@
> > };
> >
> > thermal-zones {
> > - cpu_thermal: cpu-thermal {
> > + core-cluster {
> > polling-delay-passive = <1000>;
> > polling-delay = <5000>;
> > thermal-sensors = <&tmu 0>;
> >
> > trips {
> > - cpu_alert: cpu-alert {
> > + core_cluster_alert:
> core-cluster-alert
> > + {
> > temperature = <85000>;
> > hysteresis = <2000>;
> > type = "passive";
> > };
> >
> > - cpu_crit: cpu-crit {
> > + core_cluster_crit: core-cluster-crit {
> > temperature = <95000>;
> > hysteresis = <2000>;
> > type = "critical"; @@
> -150,7
> > +150,7 @@
> >
> > cooling-maps {
> > map0 {
> > - trip = <&cpu_alert>;
> > + trip =
> <&core_cluster_alert>;
> > cooling-device =
> > <&cpu0
> THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > <&cpu1
> > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26 @@
> > };
> > };
> > };
> > +
> > + soc {
> > + polling-delay-passive = <1000>;
> > + polling-delay = <5000>;
> > + thermal-sensors = <&tmu 1>;
> > +
> > + trips {
> > + soc-alert {
> > + temperature = <85000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > +
> > + soc-crit {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
>
> You should also add a cooling-maps section for this thermal zone given that it
> has a passive trip type. Otherwise there is no use for a passive trip type.
It is better to have a cooling device. But there is only one cooling device on this platform
which is used by core-cluster. So there is no extra cooling device for it.
This zone can take action when critical temp is reached. So it is still useful.
What do you suggest?
BR,
Andy
>
> > };
> >
> > timer {
> > @@ -209,45 +229,49 @@
> > compatible = "fsl,qoriq-tmu";
> > reg = <0x0 0x1f80000 0x0 0x10000>;
> > interrupts = <0 23 0x4>;
> > - fsl,tmu-range = <0xb0000 0x9002a 0x6004c
> 0x30062>;
> > + fsl,tmu-range = <0xb0000 0x9002a 0x6004c
> > + 0x70062>;
> > fsl,tmu-calibration =
> > /* Calibration data group 1 */
> > - <0x00000000 0x00000026
> > - 0x00000001 0x0000002d
> > - 0x00000002 0x00000032
> > - 0x00000003 0x00000039
> > - 0x00000004 0x0000003f
> > - 0x00000005 0x00000046
> > - 0x00000006 0x0000004d
> > - 0x00000007 0x00000054
> > - 0x00000008 0x0000005a
> > - 0x00000009 0x00000061
> > - 0x0000000a 0x0000006a
> > - 0x0000000b 0x00000071
> > + <0x00000000 0x00000023
> > + 0x00000001 0x0000002a
> > + 0x00000002 0x00000030
> > + 0x00000003 0x00000037
> > + 0x00000004 0x0000003d
> > + 0x00000005 0x00000044
> > + 0x00000006 0x0000004a
> > + 0x00000007 0x00000051
> > + 0x00000008 0x00000057
> > + 0x00000009 0x0000005e
> > + 0x0000000a 0x00000064
> > + 0x0000000b 0x0000006b
> > /* Calibration data group 2 */
> > - 0x00010000 0x00000025
> > - 0x00010001 0x0000002c
> > - 0x00010002 0x00000035
> > - 0x00010003 0x0000003d
> > - 0x00010004 0x00000045
> > - 0x00010005 0x0000004e
> > - 0x00010006 0x00000057
> > - 0x00010007 0x00000061
> > - 0x00010008 0x0000006b
> > - 0x00010009 0x00000076
> > + 0x00010000 0x00000022
> > + 0x00010001 0x0000002a
> > + 0x00010002 0x00000032
> > + 0x00010003 0x0000003a
> > + 0x00010004 0x00000042
> > + 0x00010005 0x0000004a
> > + 0x00010006 0x00000052
> > + 0x00010007 0x0000005a
> > + 0x00010008 0x00000062
> > + 0x00010009 0x0000006a
> > /* Calibration data group 3 */
> > - 0x00020000 0x00000029
> > - 0x00020001 0x00000033
> > - 0x00020002 0x0000003d
> > - 0x00020003 0x00000049
> > - 0x00020004 0x00000056
> > - 0x00020005 0x00000061
> > - 0x00020006 0x0000006d
> > + 0x00020000 0x00000021
> > + 0x00020001 0x0000002b
> > + 0x00020002 0x00000035
> > + 0x00020003 0x00000040
> > + 0x00020004 0x0000004a
> > + 0x00020005 0x00000054
> > + 0x00020006 0x0000005e
> > /* Calibration data group 4 */
> > - 0x00030000 0x00000021
> > - 0x00030001 0x0000002a
> > - 0x00030002 0x0000003c
> > - 0x00030003 0x0000004e>;
> > + 0x00030000 0x00000010
> > + 0x00030001 0x0000001c
> > + 0x00030002 0x00000027
> > + 0x00030003 0x00000032
> > + 0x00030004 0x0000003e
> > + 0x00030005 0x00000049
> > + 0x00030006 0x00000054
> > + 0x00030007 0x00000060>;
> > little-endian;
> > #thermal-sensor-cells = <1>;
> > };
> > --
> > 2.17.1
> >
On Tue, Jun 30, 2020 at 10:58 AM Andy Tang <[email protected]> wrote:
>
>
>
> > -----Original Message-----
> > From: Amit Kucheria <[email protected]>
> > Sent: 2020年6月30日 13:12
> > To: Andy Tang <[email protected]>
> > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> > Herring <[email protected]>; lakml <[email protected]>;
> > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > <[email protected]>; LKML <[email protected]>
> > Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal zone
> > support
> >
> > Caution: EXT Email
> >
> > On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> > >
> > > From: Yuantian Tang <[email protected]>
> > >
> > > There are 2 thermal zones in ls1088a soc. Add the other thermal zone
> > > node to enable it.
> > > Also update the values in calibration table to make the temperatures
> > > monitored more precise.
> > >
> > > Signed-off-by: Yuantian Tang <[email protected]>
> > > ---
> > > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > > +++++++++++-------
> > > 1 file changed, 62 insertions(+), 38 deletions(-)
> > >
> > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > index 36a799554620..ccbbc23e6c85 100644
> > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > @@ -129,19 +129,19 @@
> > > };
> > >
> > > thermal-zones {
> > > - cpu_thermal: cpu-thermal {
> > > + core-cluster {
> > > polling-delay-passive = <1000>;
> > > polling-delay = <5000>;
> > > thermal-sensors = <&tmu 0>;
> > >
> > > trips {
> > > - cpu_alert: cpu-alert {
> > > + core_cluster_alert:
> > core-cluster-alert
> > > + {
> > > temperature = <85000>;
> > > hysteresis = <2000>;
> > > type = "passive";
> > > };
> > >
> > > - cpu_crit: cpu-crit {
> > > + core_cluster_crit: core-cluster-crit {
> > > temperature = <95000>;
> > > hysteresis = <2000>;
> > > type = "critical"; @@
> > -150,7
> > > +150,7 @@
> > >
> > > cooling-maps {
> > > map0 {
> > > - trip = <&cpu_alert>;
> > > + trip =
> > <&core_cluster_alert>;
> > > cooling-device =
> > > <&cpu0
> > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > > <&cpu1
> > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26 @@
> > > };
> > > };
> > > };
> > > +
> > > + soc {
> > > + polling-delay-passive = <1000>;
> > > + polling-delay = <5000>;
> > > + thermal-sensors = <&tmu 1>;
> > > +
> > > + trips {
> > > + soc-alert {
> > > + temperature = <85000>;
> > > + hysteresis = <2000>;
> > > + type = "passive";
> > > + };
> > > +
> > > + soc-crit {
> > > + temperature = <95000>;
> > > + hysteresis = <2000>;
> > > + type = "critical";
> > > + };
> > > + };
> > > + };
> >
> > You should also add a cooling-maps section for this thermal zone given that it
> > has a passive trip type. Otherwise there is no use for a passive trip type.
> It is better to have a cooling device. But there is only one cooling device on this platform
> which is used by core-cluster. So there is no extra cooling device for it.
> This zone can take action when critical temp is reached. So it is still useful.
> What do you suggest?
If the action taken by the core-cluster cooling-maps is the only one
that can be taken, I suggest getting rid of the the soc-alert passive
trip completely. It is not of any use.
If there is a chance that your soc thermal-zone can heat up before
your cpu-cluster zone (unlikely), you could use the same cooling
device (cpu0, cpu1) for soc thermal zone too.
> -----Original Message-----
> From: Amit Kucheria <[email protected]>
> Sent: 2020年6月30日 13:37
> To: Andy Tang <[email protected]>
> Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> Herring <[email protected]>; lakml <[email protected]>;
> open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <[email protected]>; LKML <[email protected]>
> Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> zone support
>
> Caution: EXT Email
>
> On Tue, Jun 30, 2020 at 10:58 AM Andy Tang <[email protected]> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Amit Kucheria <[email protected]>
> > > Sent: 2020年6月30日 13:12
> > > To: Andy Tang <[email protected]>
> > > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>;
> > > Rob Herring <[email protected]>; lakml
> > > <[email protected]>;
> > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > <[email protected]>; LKML <[email protected]>
> > > Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> > > zone support
> > >
> > > Caution: EXT Email
> > >
> > > On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> > > >
> > > > From: Yuantian Tang <[email protected]>
> > > >
> > > > There are 2 thermal zones in ls1088a soc. Add the other thermal
> > > > zone node to enable it.
> > > > Also update the values in calibration table to make the
> > > > temperatures monitored more precise.
> > > >
> > > > Signed-off-by: Yuantian Tang <[email protected]>
> > > > ---
> > > > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > > > +++++++++++-------
> > > > 1 file changed, 62 insertions(+), 38 deletions(-)
> > > >
> > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > index 36a799554620..ccbbc23e6c85 100644
> > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > @@ -129,19 +129,19 @@
> > > > };
> > > >
> > > > thermal-zones {
> > > > - cpu_thermal: cpu-thermal {
> > > > + core-cluster {
> > > > polling-delay-passive = <1000>;
> > > > polling-delay = <5000>;
> > > > thermal-sensors = <&tmu 0>;
> > > >
> > > > trips {
> > > > - cpu_alert: cpu-alert {
> > > > + core_cluster_alert:
> > > core-cluster-alert
> > > > + {
> > > > temperature =
> <85000>;
> > > > hysteresis = <2000>;
> > > > type = "passive";
> > > > };
> > > >
> > > > - cpu_crit: cpu-crit {
> > > > + core_cluster_crit:
> > > > + core-cluster-crit {
> > > > temperature =
> <95000>;
> > > > hysteresis = <2000>;
> > > > type = "critical"; @@
> > > -150,7
> > > > +150,7 @@
> > > >
> > > > cooling-maps {
> > > > map0 {
> > > > - trip = <&cpu_alert>;
> > > > + trip =
> > > <&core_cluster_alert>;
> > > > cooling-device =
> > > > <&cpu0
> > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > > > <&cpu1
> > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26 @@
> > > > };
> > > > };
> > > > };
> > > > +
> > > > + soc {
> > > > + polling-delay-passive = <1000>;
> > > > + polling-delay = <5000>;
> > > > + thermal-sensors = <&tmu 1>;
> > > > +
> > > > + trips {
> > > > + soc-alert {
> > > > + temperature =
> <85000>;
> > > > + hysteresis = <2000>;
> > > > + type = "passive";
> > > > + };
> > > > +
> > > > + soc-crit {
> > > > + temperature =
> <95000>;
> > > > + hysteresis = <2000>;
> > > > + type = "critical";
> > > > + };
> > > > + };
> > > > + };
> > >
> > > You should also add a cooling-maps section for this thermal zone
> > > given that it has a passive trip type. Otherwise there is no use for a
> passive trip type.
> > It is better to have a cooling device. But there is only one cooling
> > device on this platform which is used by core-cluster. So there is no extra
> cooling device for it.
> > This zone can take action when critical temp is reached. So it is still useful.
> > What do you suggest?
>
> If the action taken by the core-cluster cooling-maps is the only one that can
> be taken, I suggest getting rid of the the soc-alert passive trip completely. It is
> not of any use.
>
> If there is a chance that your soc thermal-zone can heat up before your
> cpu-cluster zone (unlikely), you could use the same cooling device (cpu0, cpu1)
> for soc thermal zone too.
Thanks for your suggestion.
I was told that a cooling-maps can not be applied to more than one thermal zone.
So the only option is to remove the alert trip.
BR,
Andy
On Tue, Jun 30, 2020 at 12:07 PM Andy Tang <[email protected]> wrote:
>
>
>
> > -----Original Message-----
> > From: Amit Kucheria <[email protected]>
> > Sent: 2020年6月30日 13:37
> > To: Andy Tang <[email protected]>
> > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> > Herring <[email protected]>; lakml <[email protected]>;
> > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > <[email protected]>; LKML <[email protected]>
> > Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> > zone support
> >
> > Caution: EXT Email
> >
> > On Tue, Jun 30, 2020 at 10:58 AM Andy Tang <[email protected]> wrote:
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Amit Kucheria <[email protected]>
> > > > Sent: 2020年6月30日 13:12
> > > > To: Andy Tang <[email protected]>
> > > > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>;
> > > > Rob Herring <[email protected]>; lakml
> > > > <[email protected]>;
> > > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > > <[email protected]>; LKML <[email protected]>
> > > > Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> > > > zone support
> > > >
> > > > Caution: EXT Email
> > > >
> > > > On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> > > > >
> > > > > From: Yuantian Tang <[email protected]>
> > > > >
> > > > > There are 2 thermal zones in ls1088a soc. Add the other thermal
> > > > > zone node to enable it.
> > > > > Also update the values in calibration table to make the
> > > > > temperatures monitored more precise.
> > > > >
> > > > > Signed-off-by: Yuantian Tang <[email protected]>
> > > > > ---
> > > > > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > > > > +++++++++++-------
> > > > > 1 file changed, 62 insertions(+), 38 deletions(-)
> > > > >
> > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > index 36a799554620..ccbbc23e6c85 100644
> > > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > @@ -129,19 +129,19 @@
> > > > > };
> > > > >
> > > > > thermal-zones {
> > > > > - cpu_thermal: cpu-thermal {
> > > > > + core-cluster {
> > > > > polling-delay-passive = <1000>;
> > > > > polling-delay = <5000>;
> > > > > thermal-sensors = <&tmu 0>;
> > > > >
> > > > > trips {
> > > > > - cpu_alert: cpu-alert {
> > > > > + core_cluster_alert:
> > > > core-cluster-alert
> > > > > + {
> > > > > temperature =
> > <85000>;
> > > > > hysteresis = <2000>;
> > > > > type = "passive";
> > > > > };
> > > > >
> > > > > - cpu_crit: cpu-crit {
> > > > > + core_cluster_crit:
> > > > > + core-cluster-crit {
> > > > > temperature =
> > <95000>;
> > > > > hysteresis = <2000>;
> > > > > type = "critical"; @@
> > > > -150,7
> > > > > +150,7 @@
> > > > >
> > > > > cooling-maps {
> > > > > map0 {
> > > > > - trip = <&cpu_alert>;
> > > > > + trip =
> > > > <&core_cluster_alert>;
> > > > > cooling-device =
> > > > > <&cpu0
> > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > > > > <&cpu1
> > > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26 @@
> > > > > };
> > > > > };
> > > > > };
> > > > > +
> > > > > + soc {
> > > > > + polling-delay-passive = <1000>;
> > > > > + polling-delay = <5000>;
> > > > > + thermal-sensors = <&tmu 1>;
> > > > > +
> > > > > + trips {
> > > > > + soc-alert {
> > > > > + temperature =
> > <85000>;
> > > > > + hysteresis = <2000>;
> > > > > + type = "passive";
> > > > > + };
> > > > > +
> > > > > + soc-crit {
> > > > > + temperature =
> > <95000>;
> > > > > + hysteresis = <2000>;
> > > > > + type = "critical";
> > > > > + };
> > > > > + };
> > > > > + };
> > > >
> > > > You should also add a cooling-maps section for this thermal zone
> > > > given that it has a passive trip type. Otherwise there is no use for a
> > passive trip type.
> > > It is better to have a cooling device. But there is only one cooling
> > > device on this platform which is used by core-cluster. So there is no extra
> > cooling device for it.
> > > This zone can take action when critical temp is reached. So it is still useful.
> > > What do you suggest?
> >
> > If the action taken by the core-cluster cooling-maps is the only one that can
> > be taken, I suggest getting rid of the the soc-alert passive trip completely. It is
> > not of any use.
> >
> > If there is a chance that your soc thermal-zone can heat up before your
> > cpu-cluster zone (unlikely), you could use the same cooling device (cpu0, cpu1)
> > for soc thermal zone too.
> Thanks for your suggestion.
> I was told that a cooling-maps can not be applied to more than one thermal zone.
> So the only option is to remove the alert trip.
The cooling-map is unique to the thermal-zone. But the cooling devices
may be reused.
See arch/arm64/boot/dts/qcom/sdm845.dtsi for an example.
So, in your case, you would have a cooling-map section that ties the
soc-alert trip to the same cooling devices as in cpu-cluster cooling
map.
> -----Original Message-----
> From: Amit Kucheria <[email protected]>
> Sent: 2020年6月30日 14:47
> To: Andy Tang <[email protected]>
> Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> Herring <[email protected]>; lakml <[email protected]>;
> open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <[email protected]>; LKML <[email protected]>
> Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> zone support
>
> Caution: EXT Email
>
> On Tue, Jun 30, 2020 at 12:07 PM Andy Tang <[email protected]> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Amit Kucheria <[email protected]>
> > > Sent: 2020年6月30日 13:37
> > > To: Andy Tang <[email protected]>
> > > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>;
> > > Rob Herring <[email protected]>; lakml
> > > <[email protected]>;
> > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > <[email protected]>; LKML <[email protected]>
> > > Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more
> > > thermal zone support
> > >
> > > Caution: EXT Email
> > >
> > > On Tue, Jun 30, 2020 at 10:58 AM Andy Tang <[email protected]>
> wrote:
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Amit Kucheria <[email protected]>
> > > > > Sent: 2020年6月30日 13:12
> > > > > To: Andy Tang <[email protected]>
> > > > > Cc: Shawn Guo <[email protected]>; Leo Li
> > > > > <[email protected]>; Rob Herring <[email protected]>; lakml
> > > > > <[email protected]>;
> > > > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > > > <[email protected]>; LKML
> > > > > <[email protected]>
> > > > > Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more
> > > > > thermal zone support
> > > > >
> > > > > Caution: EXT Email
> > > > >
> > > > > On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> > > > > >
> > > > > > From: Yuantian Tang <[email protected]>
> > > > > >
> > > > > > There are 2 thermal zones in ls1088a soc. Add the other
> > > > > > thermal zone node to enable it.
> > > > > > Also update the values in calibration table to make the
> > > > > > temperatures monitored more precise.
> > > > > >
> > > > > > Signed-off-by: Yuantian Tang <[email protected]>
> > > > > > ---
> > > > > > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > > > > > +++++++++++-------
> > > > > > 1 file changed, 62 insertions(+), 38 deletions(-)
> > > > > >
> > > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > index 36a799554620..ccbbc23e6c85 100644
> > > > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > @@ -129,19 +129,19 @@
> > > > > > };
> > > > > >
> > > > > > thermal-zones {
> > > > > > - cpu_thermal: cpu-thermal {
> > > > > > + core-cluster {
> > > > > > polling-delay-passive = <1000>;
> > > > > > polling-delay = <5000>;
> > > > > > thermal-sensors = <&tmu 0>;
> > > > > >
> > > > > > trips {
> > > > > > - cpu_alert: cpu-alert {
> > > > > > + core_cluster_alert:
> > > > > core-cluster-alert
> > > > > > + {
> > > > > > temperature =
> > > <85000>;
> > > > > > hysteresis =
> <2000>;
> > > > > > type = "passive";
> > > > > > };
> > > > > >
> > > > > > - cpu_crit: cpu-crit {
> > > > > > + core_cluster_crit:
> > > > > > + core-cluster-crit {
> > > > > > temperature =
> > > <95000>;
> > > > > > hysteresis =
> <2000>;
> > > > > > type = "critical";
> @@
> > > > > -150,7
> > > > > > +150,7 @@
> > > > > >
> > > > > > cooling-maps {
> > > > > > map0 {
> > > > > > - trip =
> <&cpu_alert>;
> > > > > > + trip =
> > > > > <&core_cluster_alert>;
> > > > > > cooling-device =
> > > > > > <&cpu0
> > > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > > > > > <&cpu1
> > > > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26
> @@
> > > > > > };
> > > > > > };
> > > > > > };
> > > > > > +
> > > > > > + soc {
> > > > > > + polling-delay-passive = <1000>;
> > > > > > + polling-delay = <5000>;
> > > > > > + thermal-sensors = <&tmu 1>;
> > > > > > +
> > > > > > + trips {
> > > > > > + soc-alert {
> > > > > > + temperature =
> > > <85000>;
> > > > > > + hysteresis =
> <2000>;
> > > > > > + type = "passive";
> > > > > > + };
> > > > > > +
> > > > > > + soc-crit {
> > > > > > + temperature =
> > > <95000>;
> > > > > > + hysteresis =
> <2000>;
> > > > > > + type = "critical";
> > > > > > + };
> > > > > > + };
> > > > > > + };
> > > > >
> > > > > You should also add a cooling-maps section for this thermal zone
> > > > > given that it has a passive trip type. Otherwise there is no use
> > > > > for a
> > > passive trip type.
> > > > It is better to have a cooling device. But there is only one
> > > > cooling device on this platform which is used by core-cluster. So
> > > > there is no extra
> > > cooling device for it.
> > > > This zone can take action when critical temp is reached. So it is still
> useful.
> > > > What do you suggest?
> > >
> > > If the action taken by the core-cluster cooling-maps is the only one
> > > that can be taken, I suggest getting rid of the the soc-alert
> > > passive trip completely. It is not of any use.
> > >
> > > If there is a chance that your soc thermal-zone can heat up before
> > > your cpu-cluster zone (unlikely), you could use the same cooling
> > > device (cpu0, cpu1) for soc thermal zone too.
> > Thanks for your suggestion.
> > I was told that a cooling-maps can not be applied to more than one thermal
> zone.
> > So the only option is to remove the alert trip.
>
> The cooling-map is unique to the thermal-zone. But the cooling devices may
> be reused.
>
> See arch/arm64/boot/dts/qcom/sdm845.dtsi for an example.
>
> So, in your case, you would have a cooling-map section that ties the soc-alert
> trip to the same cooling devices as in cpu-cluster cooling map.
Got it. Thanks,
BR,
Andy
Hi Shawn,
Do you think it is ok if the cooling devices are shared between thermal zones?
BR,
Andy
> -----Original Message-----
> From: Amit Kucheria <[email protected]>
> Sent: 2020年6月30日 14:47
> To: Andy Tang <[email protected]>
> Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>; Rob
> Herring <[email protected]>; lakml <[email protected]>;
> open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <[email protected]>; LKML <[email protected]>
> Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more thermal
> zone support
>
> Caution: EXT Email
>
> On Tue, Jun 30, 2020 at 12:07 PM Andy Tang <[email protected]> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Amit Kucheria <[email protected]>
> > > Sent: 2020年6月30日 13:37
> > > To: Andy Tang <[email protected]>
> > > Cc: Shawn Guo <[email protected]>; Leo Li <[email protected]>;
> > > Rob Herring <[email protected]>; lakml
> > > <[email protected]>;
> > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > <[email protected]>; LKML <[email protected]>
> > > Subject: Re: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more
> > > thermal zone support
> > >
> > > Caution: EXT Email
> > >
> > > On Tue, Jun 30, 2020 at 10:58 AM Andy Tang <[email protected]>
> wrote:
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Amit Kucheria <[email protected]>
> > > > > Sent: 2020年6月30日 13:12
> > > > > To: Andy Tang <[email protected]>
> > > > > Cc: Shawn Guo <[email protected]>; Leo Li
> > > > > <[email protected]>; Rob Herring <[email protected]>; lakml
> > > > > <[email protected]>;
> > > > > open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> > > > > <[email protected]>; LKML
> > > > > <[email protected]>
> > > > > Subject: [EXT] Re: [PATCH 1/2] arm64: dts: ls1088a: add more
> > > > > thermal zone support
> > > > >
> > > > > Caution: EXT Email
> > > > >
> > > > > On Tue, Jun 30, 2020 at 8:56 AM <[email protected]> wrote:
> > > > > >
> > > > > > From: Yuantian Tang <[email protected]>
> > > > > >
> > > > > > There are 2 thermal zones in ls1088a soc. Add the other
> > > > > > thermal zone node to enable it.
> > > > > > Also update the values in calibration table to make the
> > > > > > temperatures monitored more precise.
> > > > > >
> > > > > > Signed-off-by: Yuantian Tang <[email protected]>
> > > > > > ---
> > > > > > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 100
> > > > > > +++++++++++-------
> > > > > > 1 file changed, 62 insertions(+), 38 deletions(-)
> > > > > >
> > > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > index 36a799554620..ccbbc23e6c85 100644
> > > > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > > > > > @@ -129,19 +129,19 @@
> > > > > > };
> > > > > >
> > > > > > thermal-zones {
> > > > > > - cpu_thermal: cpu-thermal {
> > > > > > + core-cluster {
> > > > > > polling-delay-passive = <1000>;
> > > > > > polling-delay = <5000>;
> > > > > > thermal-sensors = <&tmu 0>;
> > > > > >
> > > > > > trips {
> > > > > > - cpu_alert: cpu-alert {
> > > > > > + core_cluster_alert:
> > > > > core-cluster-alert
> > > > > > + {
> > > > > > temperature =
> > > <85000>;
> > > > > > hysteresis =
> <2000>;
> > > > > > type = "passive";
> > > > > > };
> > > > > >
> > > > > > - cpu_crit: cpu-crit {
> > > > > > + core_cluster_crit:
> > > > > > + core-cluster-crit {
> > > > > > temperature =
> > > <95000>;
> > > > > > hysteresis =
> <2000>;
> > > > > > type = "critical";
> @@
> > > > > -150,7
> > > > > > +150,7 @@
> > > > > >
> > > > > > cooling-maps {
> > > > > > map0 {
> > > > > > - trip =
> <&cpu_alert>;
> > > > > > + trip =
> > > > > <&core_cluster_alert>;
> > > > > > cooling-device =
> > > > > > <&cpu0
> > > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > > > > > <&cpu1
> > > > > > THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, @@ -163,6 +163,26
> @@
> > > > > > };
> > > > > > };
> > > > > > };
> > > > > > +
> > > > > > + soc {
> > > > > > + polling-delay-passive = <1000>;
> > > > > > + polling-delay = <5000>;
> > > > > > + thermal-sensors = <&tmu 1>;
> > > > > > +
> > > > > > + trips {
> > > > > > + soc-alert {
> > > > > > + temperature =
> > > <85000>;
> > > > > > + hysteresis =
> <2000>;
> > > > > > + type = "passive";
> > > > > > + };
> > > > > > +
> > > > > > + soc-crit {
> > > > > > + temperature =
> > > <95000>;
> > > > > > + hysteresis =
> <2000>;
> > > > > > + type = "critical";
> > > > > > + };
> > > > > > + };
> > > > > > + };
> > > > >
> > > > > You should also add a cooling-maps section for this thermal zone
> > > > > given that it has a passive trip type. Otherwise there is no use
> > > > > for a
> > > passive trip type.
> > > > It is better to have a cooling device. But there is only one
> > > > cooling device on this platform which is used by core-cluster. So
> > > > there is no extra
> > > cooling device for it.
> > > > This zone can take action when critical temp is reached. So it is still
> useful.
> > > > What do you suggest?
> > >
> > > If the action taken by the core-cluster cooling-maps is the only one
> > > that can be taken, I suggest getting rid of the the soc-alert
> > > passive trip completely. It is not of any use.
> > >
> > > If there is a chance that your soc thermal-zone can heat up before
> > > your cpu-cluster zone (unlikely), you could use the same cooling
> > > device (cpu0, cpu1) for soc thermal zone too.
> > Thanks for your suggestion.
> > I was told that a cooling-maps can not be applied to more than one thermal
> zone.
> > So the only option is to remove the alert trip.
>
> The cooling-map is unique to the thermal-zone. But the cooling devices may
> be reused.
>
> See arch/arm64/boot/dts/qcom/sdm845.dtsi for an example.
>
> So, in your case, you would have a cooling-map section that ties the soc-alert
> trip to the same cooling devices as in cpu-cluster cooling map.
On Thu, Jul 02, 2020 at 03:33:59AM +0000, Andy Tang wrote:
> Hi Shawn,
>
> Do you think it is ok if the cooling devices are shared between thermal zones?
Yeah, Amit has the authority on thermal support, so follow his
suggestion, I would say :)
Shawn