[PATCH 5/6] arm64: dts: renesas: r9a08g045: Add TSU node
From: Claudiu <claudiu.beznea@tuxon.dev>
Date: 2025-01-03 16:38:41
Also in:
linux-clk, linux-devicetree, linux-pm, linux-renesas-soc, lkml
Subsystem:
arm/risc-v/renesas architecture, the rest · Maintainers:
Geert Uytterhoeven, Magnus Damm, Linus Torvalds
From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Add TSU node along with thermal zones and keep it enabled in the SoC DTSI. The temperature reported by the TSU can only be read through channel 8 of the ADC. Therefore, enable the ADC by default. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> --- arch/arm64/boot/dts/renesas/r9a08g045.dtsi | 43 ++++++++++++++++++- .../boot/dts/renesas/rzg3s-smarc-som.dtsi | 4 -- 2 files changed, 42 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi
index a9b98db9ef95..fd74138198a8 100644
--- a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi@@ -205,7 +205,6 @@ adc: adc@10058000 { #address-cells = <1>; #size-cells = <0>; #io-channel-cells = <1>; - status = "disabled"; channel@0 { reg = <0>;
@@ -244,6 +243,17 @@ channel@8 { }; }; + tsu: thermal@10059000 { + compatible = "renesas,r9a08g045-tsu"; + reg = <0 0x10059000 0 0x1000>; + clocks = <&cpg CPG_MOD R9A08G045_TSU_PCLK>; + resets = <&cpg R9A08G045_TSU_PRESETN>; + power-domains = <&cpg>; + #thermal-sensor-cells = <0>; + io-channels = <&adc 8>; + io-channel-names = "tsu"; + }; + vbattb: clock-controller@1005c000 { compatible = "renesas,r9a08g045-vbattb"; reg = <0 0x1005c000 0 0x1000>;
@@ -690,6 +700,37 @@ timer { "hyp-virt"; }; + thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <250>; + polling-delay = <1000>; + thermal-sensors = <&tsu>; + sustainable-power = <423>; + + cooling-maps { + map0 { + trip = <&target>; + cooling-device = <&cpu0 0 2>; + contribution = <1024>; + }; + }; + + trips { + sensor_crit: sensor-crit { + temperature = <125000>; + hysteresis = <1000>; + type = "critical"; + }; + + target: trip-point { + temperature = <100000>; + hysteresis = <1000>; + type = "passive"; + }; + }; + }; + }; + vbattb_xtal: vbattb-xtal { compatible = "fixed-clock"; #clock-cells = <0>;
diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
index ef12c1c462a7..041d256d7b79 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi@@ -102,10 +102,6 @@ x3_clk: x3-clock { }; }; -&adc { - status = "okay"; -}; - #if SW_CONFIG3 == SW_ON ð0 { pinctrl-0 = <ð0_pins>;
--
2.43.0