Hi Nathan,
Thanks for the patch.
On Feb 07, 2024 at 09:28:20 -0800, Nathan Morrisson wrote:
> The phyBOARD-Lyra has a GPIO fan header. This overlay enables the fan
> header and sets the fan to turn on at 65C.
>
> Signed-off-by: Nathan Morrisson <nmorrisson@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/ti/Makefile | 1 +
> .../ti/k3-am62-phyboard-lyra-gpio-fan.dtso | 51 +++++++++++++++++++
> 2 files changed, 52 insertions(+)
> create mode 100644 arch/arm64/boot/dts/ti/k3-am62-phyboard-lyra-gpio-fan.dtso
>
> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> index 52c1dc910308..379fb4f31a1f 100644
> --- a/arch/arm64/boot/dts/ti/Makefile
> +++ b/arch/arm64/boot/dts/ti/Makefile
> @@ -23,6 +23,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev.dtb
> dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-mallow.dtb
> dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-yavia.dtb
> dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb
> +dtb-$(CONFIG_ARCH_K3) += k3-am62-phyboard-lyra-gpio-fan.dtbo
You can also add a compile time test, to check if this applies cleanly
on your phyboard base DTB.
Please see the "Build time test only, enabled by CONFIG_OF_ALL_DTBS"
section below in this file.
>
> # Boards with AM62Ax SoC
> dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phyboard-lyra-gpio-fan.dtso b/arch/arm64/boot/dts/ti/k3-am62-phyboard-lyra-gpio-fan.dtso
> new file mode 100644
> index 000000000000..9c05748bdd9d
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phyboard-lyra-gpio-fan.dtso
> @@ -0,0 +1,51 @@
> +// SPDX-License-Identifier: GPL-2.0-only OR MIT
> +/*
> + * Copyright (C) 2024 PHYTEC America LLC
> + * Author: Garrett Giordano <ggiordano@xxxxxxxxxx>
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/thermal/thermal.h>
> +#include "k3-pinctrl.h"
> +
> +&{/} {
> + fan: gpio-fan {
> + compatible = "gpio-fan";
> + gpio-fan,speed-map = <0 0 8600 1>;
> + gpios = <&main_gpio0 40 GPIO_ACTIVE_LOW>;
> + #cooling-cells = <2>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&gpio_fan_pins_default>;
> + status = "okay";
> + };
> +};
> +
> +&main_pmx0 {
> + gpio_fan_pins_default: gpio-fan-default-pins {
> + pinctrl-single,pins = <
> + AM62X_IOPAD(0x0a4, PIN_OUTPUT, 7) /* (M22) GPMC0_DIR.GPIO0_40 */
> + >;
> + };
> +};
> +
> +&thermal_zones {
> + main0_thermal: main0-thermal {
> + trips {
> + main0_thermal_trip0: main0-thermal-trip {
> + temperature = <65000>; /* millicelsius */
> + hysteresis = <2000>; /* millicelsius */
> + type = "active";
> + };
> + };
> +
> + cooling-maps {
> + map0 {
> + trip = <&main0_thermal_trip0>;
> + cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> + };
> +};
> --
> 2.25.1
>
--
Thanks,
Jai
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