arm64: dts: amlogic: a1: introduce cpu temperature sensor

The A1 SoC family has only one thermal sensor for CPU temperature
measurement. It is required to set the TS clock rate to 500kHz to make
it workable.

Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Link: https://lore.kernel.org/r/20240328192645.20914-3-ddrokosov@salutedevices.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index edd751243277f7268bbf53bf036ca1a2bf1150e5..a3ff266fb17d59ce5542a2e97f18d803a976dc70 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -400,6 +400,17 @@
                                power-domains = <&pwrc PWRC_USB_ID>;
                        };
 
+                       cpu_temp: temperature-sensor@4c00 {
+                               compatible = "amlogic,a1-cpu-thermal";
+                               reg = <0x0 0x4c00 0x0 0x50>;
+                               interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clkc_periphs CLKID_TS>;
+                               assigned-clocks = <&clkc_periphs CLKID_TS>;
+                               assigned-clock-rates = <500000>;
+                               #thermal-sensor-cells = <0>;
+                               amlogic,ao-secure = <&sec_AO>;
+                       };
+
                        hwrng: rng@5118 {
                                compatible = "amlogic,meson-rng";
                                reg = <0x0 0x5118 0x0 0x4>;