diff options
Diffstat (limited to 'target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch')
| -rw-r--r-- | target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch b/target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch deleted file mode 100644 index 5949b92be1..0000000000 --- a/target/linux/gemini/patches-5.4/0004-ARM-dts-gemini-Add-thermal-zone-to-DIR-685.patch +++ /dev/null @@ -1,101 +0,0 @@ -From 2b2e9d0e1ee4765b21c648235489028c6dc7e336 Mon Sep 17 00:00:00 2001 -From: Linus Walleij <linus.walleij@linaro.org> -Date: Tue, 31 Dec 2019 18:18:08 +0100 -Subject: [PATCH 4/7] ARM: dts: gemini: Add thermal zone to DIR-685 - -The DIR-685 can now exploit the thermal zone added by the -drive temperature sensor inside the hard drive. We have -patched the libata subsystem to assign the device nodes -properly to the SCSI devices and this is what the drivetemp -driver will use to populate the sensor and the thermal -zone, so pick that up into the thermal zone and let this -control the fan. - -The hardware lacks an embedded temperature sensor so the -D-Link vendor firmware uses this method to control the -temperature of the NAS enclosure using the thermal sensor -inside the hard drive. - -The drive temperature trigger points to be used comes from -the vendor firmware. - -Signed-off-by: Linus Walleij <linus.walleij@linaro.org> ---- - arch/arm/boot/dts/gemini-dlink-dir-685.dts | 48 ++++++++++++++++++++-- - 1 file changed, 45 insertions(+), 3 deletions(-) - ---- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts -+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts -@@ -119,13 +119,11 @@ - - /* - * This is a Sunon Maglev GM0502PFV2-8 cooling fan @10000 RPM. -- * Since the platform has no temperature sensor, this is controlled -- * from userspace by using the hard disks S.M.A.R.T. temperature - * sensor. It is turned on when the temperature exceeds 46 degrees - * and turned off when the temperatures goes below 41 degrees - * (celsius). - */ -- gpio-fan { -+ fan0: gpio-fan { - compatible = "gpio-fan"; - /* Collides with IDE */ - gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>; -@@ -133,6 +131,40 @@ - #cooling-cells = <2>; - }; - -+ thermal-zones { -+ chassis-thermal { -+ /* Poll every 20 seconds */ -+ polling-delay = <20000>; -+ /* Poll every 2nd second when cooling */ -+ polling-delay-passive = <2000>; -+ /* Use the thermal sensor in the hard drive */ -+ thermal-sensors = <&drive0>; -+ -+ /* Tripping points from the fan.script in the rootfs */ -+ trips { -+ alert: chassis-alert { -+ /* At 43 degrees turn on the fan */ -+ temperature = <43000>; -+ hysteresis = <3000>; -+ type = "active"; -+ }; -+ crit: chassis-crit { -+ /* Just shut down at 60 degrees */ -+ temperature = <60000>; -+ hysteresis = <2000>; -+ type = "critical"; -+ }; -+ }; -+ -+ cooling-maps { -+ map0 { -+ trip = <&alert>; -+ cooling-device = <&fan0 1 1>; -+ }; -+ }; -+ }; -+ }; -+ - /* - * The touchpad input is connected to a GPIO bit-banged - * I2C bus. -@@ -445,6 +477,16 @@ - - ide@63000000 { - status = "okay"; -+ -+ /* -+ * This drive may have a temperature sensor with a -+ * thermal zone we can use for thermal control of the -+ * chassis temperature using the fan. -+ */ -+ drive0: ide-port@0 { -+ reg = <0>; -+ #thermal-sensor-cells = <0>; -+ }; - }; - - display-controller@6a000000 { |