在 2017年08月04日 16:06, Rocky Hao 写道:
add thermal zone and dynamic CPU power coefficients for rk3328
Signed-off-by: Rocky Hao <rocky.hao@xxxxxxxxxxxxxx>
---
Change in v2:
- remove gerrit Change-Id
arch/arm64/boot/dts/rockchip/rk3328.dtsi | 43 ++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 186fb93fdffd..68829f808320 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -47,6 +47,7 @@
#include <dt-bindings/pinctrl/rockchip.h>
#include <dt-bindings/power/rk3328-power.h>
#include <dt-bindings/soc/rockchip,boot-mode.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
compatible = "rockchip,rk3328";
@@ -74,6 +75,8 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x0>;
clocks = <&cru ARMCLK>;
+ #cooling-cells = <2>; /* min followed by max */
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
};
@@ -83,6 +86,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x1>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
};
@@ -92,6 +96,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x2>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
};
@@ -101,6 +106,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x3>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
};
@@ -308,6 +314,43 @@
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
};
+ thermal-zones {
+ soc_thermal: soc-thermal {
+ polling-delay-passive = <20>; /* milliseconds */
+ polling-delay = <1000>; /* milliseconds */
+ sustainable-power = <1000>; /* milliwatts */
+
+ thermal-sensors = <&tsadc 0>;
+
+ trips {
+ threshold: trip-point0 {
+ temperature = <70000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
+ type = "passive";
+ };
+ target: trip-point1 {
+ temperature = <85000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
+ type = "passive";
+ };
+ soc_crit: soc-crit {
+ temperature = <95000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
The document had already described, maybe we should remove the
millicelsius/milliseconds/milliwatts here.
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&target>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ contribution = <4096>;
+ };
+ };
+ };
+
+ };
+
tsadc: tsadc@ff250000 {
compatible = "rockchip,rk3328-tsadc";
reg = <0x0 0xff250000 0x0 0x100>;
--
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