From: Nathan Morrisson <nmorrisson@phytec.com>
To: nm@ti.com, vigneshr@ti.com, kristo@kernel.org, robh@kernel.org,
krzk+dt@kernel.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: am64-phyboard-electra: Add overlay to enable a GPIO fan
Date: Fri, 19 Apr 2024 12:31:14 -0700 [thread overview]
Message-ID: <20240419193114.3090084-1-nmorrisson@phytec.com> (raw)
The phyBOARD-Electra 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 | 4 ++
.../k3-am642-phyboard-electra-gpio-fan.dtso | 50 +++++++++++++++++++
2 files changed, 54 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 9a722c2473fb..fd91cf40af6d 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -48,6 +48,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-pcie.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-usb3.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-gpio-fan.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
@@ -131,6 +132,8 @@ k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \
k3-am62x-sk-csi2-tevi-ov5640.dtbo
k3-am642-evm-icssg1-dualemac-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
+k3-am642-phyboard-electra-gpio-fan-dtbs := \
+ k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \
@@ -174,6 +177,7 @@ DTC_FLAGS_k3-am62-lp-sk += -@
DTC_FLAGS_k3-am62a7-sk += -@
DTC_FLAGS_k3-am62p5-sk += -@
DTC_FLAGS_k3-am642-evm += -@
+DTC_FLAGS_k3-am642-phyboard-electra-rdk += -@
DTC_FLAGS_k3-am642-tqma64xxl-mbax4xxl += -@
DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@
DTC_FLAGS_k3-am68-sk-base-board += -@
diff --git a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso
new file mode 100644
index 000000000000..5057658061b4
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-gpio-fan.dtso
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2024 PHYTEC America LLC
+ * Author: Nathan Morrisson <nmorrisson@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 28 GPIO_ACTIVE_LOW>;
+ #cooling-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_fan_pins_default>;
+ };
+};
+
+&main_pmx0 {
+ gpio_fan_pins_default: gpio-fan-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x070, PIN_OUTPUT, 7) /* (V18) GPMC0_AD13.GPIO0_28 */
+ >;
+ };
+};
+
+&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:[~2024-04-19 19:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-19 19:31 Nathan Morrisson [this message]
2024-04-23 12:46 ` [PATCH] arm64: dts: ti: am64-phyboard-electra: Add overlay to enable a GPIO fan Wadim Egorov
2024-04-26 22:40 ` Nishanth Menon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240419193114.3090084-1-nmorrisson@phytec.com \
--to=nmorrisson@phytec.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=kristo@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nm@ti.com \
--cc=robh@kernel.org \
--cc=upstream@lists.phytec.de \
--cc=vigneshr@ti.com \
--cc=w.egorov@phytec.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).