On Wed, Feb 20, 2019 at 06:53:58AM +0000, Anson Huang wrote:
> Add i.MX8QXP CPU thermal zone support.
>
> Signed-off-by: Anson Huang <[email protected]>
> ---
> Changes since V6:
> - add fallback compatible string "fsl,imx-sc-thermal" according to i.MX
> SC thermal driver
> update.
> ---
> arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 28 ++++++++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> index 4c3dd95..24b03d6 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
> @@ -10,6 +10,7 @@
> #include <dt-bindings/gpio/gpio.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> #include <dt-bindings/pinctrl/pads-imx8qxp.h>
> +#include <dt-bindings/thermal/thermal.h>
>
> / {
> interrupt-parent = <&gic>;
> @@ -116,6 +117,12 @@
> rtc: rtc {
> compatible = "fsl,imx8qxp-sc-rtc";
> };
> +
> + tsens: thermal-sensor {
> + compatible = "fsl,imx8qxp-sc-thermal",
> "fsl,imx-sc-thermal";
> + tsens-num = <1>;
> + #thermal-sensor-cells = <1>;
> + };
> };
>
> timer {
> @@ -443,4 +450,25 @@
> power-domains = <&pd IMX_SC_R_GPIO_7>;
> };
> };
> +
> + thermal_zones: thermal-zones {
> + cpu-thermal0 {
> + polling-delay-passive = <250>;
> + polling-delay = <2000>;
> + thermal-sensors = <&tsens 0>;
> + imx,sensor-resource-id = <355>;
> + trips {
> + cpu_alert0: trip0 {
> + temperature = <107000>;
> + hysteresis = <2000>;
> + type = "passive";
Please add your cooling maps for a passive trip point.
> + };
> + cpu_crit0: trip1 {
> + temperature = <127000>;
> + hysteresis = <2000>;
> + type = "critical";
> + };
> + };
> + };
> + };
> };
> --
> 2.7.4
>
