[PATCH V2] arm64:dts:ls1046a: Add TMU device tree support

[Troy Jia]

> Subject: Re: [PATCH V2] arm64:dts:ls1046a: Add TMU device tree support
> 
> On Tue, Jan 03, 2017 at 02:42:19PM +0800, Jia Hongtao wrote:
> > Also add nodes and properties for thermal management support.
> >
> > Signed-off-by: Jia Hongtao <hongtao.jia at nxp.com>
> 
> The subject prefix is still not so right.  There should be a space after each colon.

Sorry. I will fix it.

> 
> > ---
> > Changes for V2:
> > * Update the subject title according to Shawn Guo's comment.
> > * Add comments for calibration data groups.
> > * Update "thermal-zones" property in a unified style with platform dts.
> >
> >  arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 83
> > ++++++++++++++++++++++++++
> >  1 file changed, 83 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > index 38806ca..df53a4a 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > @@ -45,6 +45,7 @@
> >   */
> >
> >  #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +#include <dt-bindings/thermal/thermal.h>
> >
> >  / {
> >  	compatible = "fsl,ls1046a";
> > @@ -67,6 +68,7 @@
> >  			clocks = <&clockgen 1 0>;
> >  			next-level-cache = <&l2>;
> >  			cpu-idle-states = <&CPU_PH20>;
> > +			#cooling-cells = <2>;
> >  		};
> >
> >  		cpu1: cpu at 1 {
> > @@ -279,6 +281,87 @@
> >  			clocks = <&sysclk>;
> >  		};
> >
> > +		tmu: tmu at 1f00000 {
> > +			compatible = "fsl,qoriq-tmu";
> > +			reg = <0x0 0x1f00000 0x0 0x10000>;
> > +			interrupts = <0 33 0x4>;
> > +			fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x30062>;
> > +			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
> > +
> > +				/* Calibration data group 2*/
> 
> The single line comment format is /* blabla */.  There are space at both beginning
> and end of the text.

Will fix.

> 
> Also I am asking that we use the single line comment to replace the blank line,
> which is still there.

I think keeping the newline makes it more clear in structure. But I also understand
your point - no newline inside one property, right? If so I will delete the newline.

-Hongtao.

> 
> > +				0x00010000 0x00000025
> > +				0x00010001 0x0000002c
> > +				0x00010002 0x00000035
> > +				0x00010003 0x0000003d
> > +				0x00010004 0x00000045
> > +				0x00010005 0x0000004e
> > +				0x00010006 0x00000057
> > +				0x00010007 0x00000061
> > +				0x00010008 0x0000006b
> > +				0x00010009 0x00000076
> > +
> > +				/* Calibration data group 3*/
> > +				0x00020000 0x00000029
> > +				0x00020001 0x00000033
> > +				0x00020002 0x0000003d
> > +				0x00020003 0x00000049
> > +				0x00020004 0x00000056
> > +				0x00020005 0x00000061
> > +				0x00020006 0x0000006d
> > +
> > +				/* Calibration data group 4*/
> > +				0x00030000 0x00000021
> > +				0x00030001 0x0000002a
> > +				0x00030002 0x0000003c
> > +				0x00030003 0x0000004e>;
> 
> Here is the format on my mind:
> 
> 			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
> 				/* Calibration data group 2 */
> 				0x00010000 0x00000025
> 				0x00010001 0x0000002c
> 				0x00010002 0x00000035
> 				0x00010003 0x0000003d
> 				0x00010004 0x00000045
> 				0x00010005 0x0000004e
> 				0x00010006 0x00000057
> 				0x00010007 0x00000061
> 				0x00010008 0x0000006b
> 				0x00010009 0x00000076
> 				/* Calibration data group 3 */
> 				0x00020000 0x00000029
> 				0x00020001 0x00000033
> 				0x00020002 0x0000003d
> 				0x00020003 0x00000049
> 				0x00020004 0x00000056
> 				0x00020005 0x00000061
> 				0x00020006 0x0000006d
> 				/* Calibration data group 4 */
> 				0x00030000 0x00000021
> 				0x00030001 0x0000002a
> 				0x00030002 0x0000003c
> 				0x00030003 0x0000004e
> 			>;
> 
> Shawn
> 
> > +			big-endian;
> > +			#thermal-sensor-cells = <1>;
> > +		};
> > +
> > +		thermal-zones {
> > +			cpu_thermal: cpu-thermal {
> > +				polling-delay-passive = <1000>;
> > +				polling-delay = <5000>;
> > +				thermal-sensors = <&tmu 3>;
> > +
> > +				trips {
> > +					cpu_alert: cpu-alert {
> > +						temperature = <85000>;
> > +						hysteresis = <2000>;
> > +						type = "passive";
> > +					};
> > +
> > +					cpu_crit: cpu-crit {
> > +						temperature = <95000>;
> > +						hysteresis = <2000>;
> > +						type = "critical";
> > +					};
> > +				};
> > +
> > +				cooling-maps {
> > +					map0 {
> > +						trip = <&cpu_alert>;
> > +						cooling-device =
> > +							<&cpu0
> THERMAL_NO_LIMIT
> > +							THERMAL_NO_LIMIT>;
> > +					};
> > +				};
> > +			};
> > +		};
> > +
> >  		dspi: dspi at 2100000 {
> >  			compatible = "fsl,ls1021a-v1.0-dspi";
> >  			#address-cells = <1>;
> > --
> > 2.1.0.27.g96db324
> >