arm64: tegra: Add Tegra234 thermal support

Add device tree node for the BPMP thermal node on Tegra234 and add
thermal zone definitions.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index f5146ce..f4974e8 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -8,6 +8,7 @@
 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
 #include <dt-bindings/power/tegra234-powergate.h>
 #include <dt-bindings/reset/tegra234-reset.h>
+#include <dt-bindings/thermal/tegra234-bpmp-thermal.h>
 
 / {
        compatible = "nvidia,tegra234";
@@ -3027,6 +3028,11 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                };
+
+               bpmp_thermal: thermal {
+                       compatible = "nvidia,tegra186-bpmp-thermal";
+                       #thermal-sensor-cells = <1>;
+               };
        };
 
        cpus {
@@ -3517,6 +3523,53 @@
                                         <&bpmp TEGRA234_CLK_PLLA_OUT0>;
        };
 
+       thermal-zones {
+               cpu-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CPU>;
+                       status = "disabled";
+               };
+
+               gpu-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_GPU>;
+                       status = "disabled";
+               };
+
+               cv0-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV0>;
+                       status = "disabled";
+               };
+
+               cv1-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV1>;
+                       status = "disabled";
+               };
+
+               cv2-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV2>;
+                       status = "disabled";
+               };
+
+               soc0-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC0>;
+                       status = "disabled";
+               };
+
+               soc1-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC1>;
+                       status = "disabled";
+               };
+
+               soc2-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC2>;
+                       status = "disabled";
+               };
+
+               tj-thermal {
+                       thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_TJ_MAX>;
+                       status = "disabled";
+               };
+       };
+
        timer {
                compatible = "arm,armv8-timer";
                interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,

diff --git a/include/dt-bindings/thermal/tegra234-bpmp-thermal.h b/include/dt-bindings/thermal/tegra234-bpmp-thermal.h
new file mode 100644 (file)
index 0000000..9347879
--- /dev/null
+++ b/include/dt-bindings/thermal/tegra234-bpmp-thermal.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for binding nvidia,tegra234-bpmp-thermal.
+ */
+
+#ifndef _DT_BINDINGS_THERMAL_TEGRA234_BPMP_THERMAL_H
+#define _DT_BINDINGS_THERMAL_TEGRA234_BPMP_THERMAL_H
+
+#define TEGRA234_BPMP_THERMAL_ZONE_CPU         0
+#define TEGRA234_BPMP_THERMAL_ZONE_GPU         1
+#define TEGRA234_BPMP_THERMAL_ZONE_CV0         2
+#define TEGRA234_BPMP_THERMAL_ZONE_CV1         3
+#define TEGRA234_BPMP_THERMAL_ZONE_CV2         4
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC0                5
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC1                6
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC2                7
+#define TEGRA234_BPMP_THERMAL_ZONE_TJ_MAX      8
+
+#endif