From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: u.kleine-koenig@pengutronix.de, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: f.fainelli@gmail.com, linux-pwm@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
wahrenst@gmx.net, linux-input@vger.kernel.org,
dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org,
devel@driverdev.osuosl.org, p.zabel@pengutronix.de,
linux-gpio@vger.kernel.org, linus.walleij@linaro.org,
linux-clk@vger.kernel.org, sboyd@kernel.org,
linux-rpi-kernel@lists.infradead.org, bgolaszewski@baylibre.com,
andy.shevchenko@gmail.com
Subject: [PATCH v6 10/11] DO NOT MERGE: ARM: dts: Add RPi's official PoE hat support
Date: Fri, 11 Dec 2020 17:47:59 +0100 [thread overview]
Message-ID: <20201211164801.7838-11-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20201211164801.7838-1-nsaenzjulienne@suse.de>
This is an example on how to enable the fan on top of RPi's official PoE
hat.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 54 +++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 403bacf986eb..9ae44620c5b8 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -5,6 +5,7 @@
#include "bcm283x-rpi-usb-peripheral.dtsi"
#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
+#include <dt-bindings/pwm/raspberrypi,firmware-poe-pwm.h>
/ {
compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
@@ -68,6 +69,54 @@ sd_vcc_reg: sd_vcc_reg {
enable-active-high;
gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
};
+
+ fan: pwm-fan {
+ compatible = "pwm-fan";
+ cooling-levels = <0 50 150 255>;
+ #cooling-cells = <2>;
+ pwms = <&fwpwm RASPBERRYPI_FIRMWARE_PWM_POE 80000>;
+ };
+
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ trips {
+ threshold: trip-point@0 {
+ temperature = <45000>;
+ hysteresis = <5000>;
+ type = "active";
+ };
+
+ target: trip-point@1 {
+ temperature = <50000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ cpu_hot: cpu_hot@0 {
+ temperature = <55000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&threshold>;
+ cooling-device = <&fan 0 1>;
+ };
+
+ map1 {
+ trip = <&target>;
+ cooling-device = <&fan 1 2>;
+ };
+
+ map2 {
+ trip = <&cpu_hot>;
+ cooling-device = <&fan 2 3>;
+ };
+ };
+ };
+ };
};
&ddc0 {
@@ -103,6 +152,11 @@ reset: reset {
compatible = "raspberrypi,firmware-reset";
#reset-cells = <1>;
};
+
+ fwpwm: pwm {
+ compatible = "raspberrypi,firmware-poe-pwm";
+ #pwm-cells = <2>;
+ };
};
&gpio {
--
2.29.2
next prev parent reply other threads:[~2020-12-11 18:04 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-11 16:47 [PATCH v6 00/11] Raspberry Pi PoE HAT fan support Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 01/11] firmware: raspberrypi: Keep count of all consumers Nicolas Saenz Julienne
2020-12-13 5:14 ` Stephen Boyd
2020-12-16 10:37 ` Bartosz Golaszewski
2020-12-11 16:47 ` [PATCH v6 02/11] firmware: raspberrypi: Introduce devm_rpi_firmware_get() Nicolas Saenz Julienne
2020-12-16 10:35 ` Bartosz Golaszewski
2020-12-16 10:37 ` Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 03/11] clk: bcm: rpi: Release firmware handle on unbind Nicolas Saenz Julienne
2020-12-13 5:12 ` Stephen Boyd
2020-12-11 16:47 ` [PATCH v6 04/11] gpio: raspberrypi-exp: " Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 05/11] reset: raspberrypi: " Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 06/11] soc: bcm: raspberrypi-power: " Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 07/11] staging: vchiq: " Nicolas Saenz Julienne
2020-12-11 16:47 ` [PATCH v6 08/11] input: raspberrypi-ts: Release firmware handle when not needed Nicolas Saenz Julienne
2020-12-11 18:17 ` Florian Fainelli
2020-12-11 16:47 ` [PATCH v6 09/11] dt-bindings: pwm: Add binding for RPi firmware PWM bus Nicolas Saenz Julienne
2020-12-11 16:47 ` Nicolas Saenz Julienne [this message]
2020-12-11 16:48 ` [PATCH v6 11/11] pwm: Add Raspberry Pi Firmware based " Nicolas Saenz Julienne
2021-01-12 9:18 ` Uwe Kleine-König
2021-01-14 18:44 ` Nicolas Saenz Julienne
2021-01-11 21:02 ` [PATCH v6 00/11] Raspberry Pi PoE HAT fan support Nicolas Saenz Julienne
2021-01-12 8:52 ` Linus Walleij
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