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Date: Thu, 21 Mar 2019 15:48:34 +0100
From: Lucas Stach <l.stach@...gutronix.de>
To: "Angus Ainslie (Purism)" <angus@...ea.ca>,
Fabio Estevam <festevam@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
NXP Linux Team <linux-imx@....com>,
Carlo Caione <ccaione@...libre.com>,
Abel Vesa <abel.vesa@....com>,
Daniel Baluta <daniel.baluta@....com>,
Guido Günther <agx@...xcpu.org>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] arm64: dts: fsl: imx8mq: enable the multi sensor TMU
Am Donnerstag, den 21.03.2019, 05:52 -0700 schrieb Angus Ainslie (Purism):
> Add the imx8mq TMU (Thermal management unit) nodes for CPU,
> GPU, and VPU.
>
> Signed-off-by: Angus Ainslie (Purism) <angus@...ea.ca>
Reviewed-by: Lucas Stach <l.stach@...gutronix.de>
> ---
>
> Changes since v3:
>
> Moved the annotation.
>
> Changes since v2:
>
> Updated alert and critical temps for commercial parts.
> Fixed node names.
>
> Changes since v1:
>
> Removed references to multi sensor patch.
>
> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 118 ++++++++++++++++++++++
> 1 file changed, 118 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> index b39c6c75c043..81d5ce1b1ec1 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> @@ -8,6 +8,7 @@
> #include <dt-bindings/power/imx8mq-power.h>
> #include <dt-bindings/gpio/gpio.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/thermal/thermal.h>
> #include "imx8mq-pinfunc.h"
>
> / {
> @@ -89,6 +90,7 @@
> > reg = <0x0>;
> > enable-method = "psci";
> > next-level-cache = <&A53_L2>;
> > + #cooling-cells = <2>;
> > };
>
> > > A53_1: cpu@1 {
> @@ -97,6 +99,7 @@
> > reg = <0x1>;
> > enable-method = "psci";
> > next-level-cache = <&A53_L2>;
> > + #cooling-cells = <2>;
> > };
>
> > > A53_2: cpu@2 {
> @@ -105,6 +108,7 @@
> > reg = <0x2>;
> > enable-method = "psci";
> > next-level-cache = <&A53_L2>;
> > + #cooling-cells = <2>;
> > };
>
> > > A53_3: cpu@3 {
> @@ -113,6 +117,7 @@
> > reg = <0x3>;
> > enable-method = "psci";
> > next-level-cache = <&A53_L2>;
> > + #cooling-cells = <2>;
> > };
>
> > A53_L2: l2-cache0 {
> @@ -210,6 +215,119 @@
> > #interrupt-cells = <2>;
> > };
>
> > > + tmu: tmu@...60000 {
> > + compatible = "fsl,imx8mq-tmu";
> > + reg = <0x30260000 0x10000>;
> > + interrupt = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
> > + little-endian;
> > + fsl,tmu-range = <0xb0000 0xa0026 0x80048 0x70061>;
> > + fsl,tmu-calibration = <0x00000000 0x00000023
> > + 0x00000001 0x00000029
> > + 0x00000002 0x0000002f
> > + 0x00000003 0x00000035
> > + 0x00000004 0x0000003d
> > + 0x00000005 0x00000043
> > + 0x00000006 0x0000004b
> > + 0x00000007 0x00000051
> > + 0x00000008 0x00000057
> > + 0x00000009 0x0000005f
> > + 0x0000000a 0x00000067
> > + 0x0000000b 0x0000006f
> +
> > + 0x00010000 0x0000001b
> > + 0x00010001 0x00000023
> > + 0x00010002 0x0000002b
> > + 0x00010003 0x00000033
> > + 0x00010004 0x0000003b
> > + 0x00010005 0x00000043
> > + 0x00010006 0x0000004b
> > + 0x00010007 0x00000055
> > + 0x00010008 0x0000005d
> > + 0x00010009 0x00000067
> > + 0x0001000a 0x00000070
> +
> > + 0x00020000 0x00000017
> > + 0x00020001 0x00000023
> > + 0x00020002 0x0000002d
> > + 0x00020003 0x00000037
> > + 0x00020004 0x00000041
> > + 0x00020005 0x0000004b
> > + 0x00020006 0x00000057
> > + 0x00020007 0x00000063
> > + 0x00020008 0x0000006f
> +
> > + 0x00030000 0x00000015
> > + 0x00030001 0x00000021
> > + 0x00030002 0x0000002d
> > + 0x00030003 0x00000039
> > + 0x00030004 0x00000045
> > + 0x00030005 0x00000053
> > + 0x00030006 0x0000005f
> > + 0x00030007 0x00000071>;
> > + #thermal-sensor-cells = <1>;
> > + };
> +
> > + thermal-zones {
> > + cpu-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <2000>;
> > + thermal-sensors = <&tmu 0>;
> +
> > + trips {
> > + cpu_alert: cpu-alert {
> > + temperature = <80000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> +
> > + cpu-crit {
> > + temperature = <90000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> +
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu_alert>;
> > + cooling-device =
> > + <&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> +
> > + gpu-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <2000>;
> > + thermal-sensors = <&tmu 1>;
> +
> > + trips {
> > + gpu-crit {
> > + temperature = <90000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> +
> > + vpu-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <2000>;
> > + thermal-sensors = <&tmu 2>;
> +
> > + trips {
> > + vpu-crit {
> > + temperature = <90000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > + };
> +
> > > wdog1: watchdog@...80000 {
> > compatible = "fsl,imx8mq-wdt", "fsl,imx21-wdt";
> > reg = <0x30280000 0x10000>;
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