diff options
| author | Bryan Brattlof <bb@ti.com> | 2023-04-05 16:53:24 -0500 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2023-06-14 21:41:32 +0530 |
| commit | 225312fbaf37bb283dbc92a0a1d4dfe58629ab64 (patch) | |
| tree | ebb35a54764dcda0b2b354ca961673c0f5d4b1d4 /arch/arm64 | |
| parent | bbb6dc62505acf6fcb80573f7e7a59875c33be0d (diff) | |
| download | lwn-225312fbaf37bb283dbc92a0a1d4dfe58629ab64.tar.gz lwn-225312fbaf37bb283dbc92a0a1d4dfe58629ab64.zip | |
arm64: dts: ti: k3-am62a-wakeup: add VTM node
The am62ax supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with three associated temperature monitors
located in various hot spots of the die.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230405215328.3755561-4-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi | 47 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 8 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62a.dtsi | 2 |
3 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi new file mode 100644 index 000000000000..85ce545633ea --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <dt-bindings/thermal/thermal.h> + +thermal_zones: thermal-zones { + main0_thermal: main0-thermal { + polling-delay-passive = <250>; /* milliSeconds */ + polling-delay = <500>; /* milliSeconds */ + thermal-sensors = <&wkup_vtm0 0>; + + trips { + main0_crit: main0-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; + + main1_thermal: main1-thermal { + polling-delay-passive = <250>; /* milliSeconds */ + polling-delay = <500>; /* milliSeconds */ + thermal-sensors = <&wkup_vtm0 1>; + + trips { + main1_crit: main1-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; + + main2_thermal: main2-thermal { + polling-delay-passive = <250>; /* milliSeconds */ + polling-delay = <500>; /* milliSeconds */ + thermal-sensors = <&wkup_vtm0 2>; + + trips { + main2_crit: main2-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi index d848eb24b552..4e8279fa01e1 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi @@ -62,4 +62,12 @@ /* Used by DM firmware */ status = "reserved"; }; + + wkup_vtm0: temperature-sensor@b00000 { + compatible = "ti,j7200-vtm"; + reg = <0x00 0xb00000 0x00 0x400>, + <0x00 0xb01000 0x00 0x400>; + power-domains = <&k3_pds 95 TI_SCI_PD_EXCLUSIVE>; + #thermal-sensor-cells = <1>; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am62a.dtsi b/arch/arm64/boot/dts/ti/k3-am62a.dtsi index fe60c9ce21e3..61a210ecd5ff 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a.dtsi @@ -115,6 +115,8 @@ <0x00 0x78100000 0x00 0x78100000 0x00 0x00008000>; /* DM R5 BTCM*/ }; }; + + #include "k3-am62a-thermal.dtsi" }; /* Now include the peripherals for each bus segments */ |