From: Nathan Morrisson <nmorrisson@phytec.com>
To: nm@ti.com, vigneshr@ti.com, kristo@kernel.org,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, upstream@lists.phytec.de,
w.egorov@phytec.de
Subject: [PATCH] arm64: dts: ti: am62-phyboard-lyra: Add overlay to enable a GPIO fan
Date: Wed, 7 Feb 2024 09:28:20 -0800 [thread overview]
Message-ID: <20240207172820.478332-1-nmorrisson@phytec.com> (raw)
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@phytec.com>
---
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-$(CONFIG_ARCH_K3) += k3-am62-phyboard-lyra-gpio-fan.dtbo
# Boards with AM62Ax SoC
dtb-$(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@phytec.com>
+ */
+
+/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
next reply other threads:[~2024-02-07 17:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-07 17:28 Nathan Morrisson [this message]
2024-02-07 22:20 ` Andrew Davis
2024-02-08 5:57 ` Wadim Egorov
2024-02-08 7:22 ` Jai Luthra
2024-02-08 6:02 ` Jai Luthra
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