Channel 0 of SA56004ED chip refers to internal SA56004ED chip sensor (chip
itself is located on the board) and channel 1 of SA56004ED chip refers to
external sensor which is connected to temperature diode of the P2020 CPU.
Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
Signed-off-by: Pali Rohár <p...@kernel.org>
---
With this change userspace 'sensors' applications prints labels:
$ sensors
sa56004-i2c-0-4c
Adapter: MPC adapter (i2c@3000)
board: +34.2°C (low = +0.0°C, high = +70.0°C)
(crit = +85.0°C, hyst = +75.0°C)
cpu: +58.9°C (low = +0.0°C, high = +70.0°C)
(crit = +85.0°C, hyst = +75.0°C)
And without this change it prints just generic tempX names:
$ sensors
sa56004-i2c-0-4c
Adapter: MPC adapter (i2c@3000)
temp1: +43.0°C (low = +0.0°C, high = +70.0°C)
(crit = +85.0°C, hyst = +75.0°C)
temp2: +63.4°C (low = +0.0°C, high = +70.0°C)
(crit = +85.0°C, hyst = +75.0°C)
---
arch/powerpc/boot/dts/turris1x.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/powerpc/boot/dts/turris1x.dts
b/arch/powerpc/boot/dts/turris1x.dts
index 4033c554b06a..5b5278c32e43 100644
--- a/arch/powerpc/boot/dts/turris1x.dts
+++ b/arch/powerpc/boot/dts/turris1x.dts
@@ -69,6 +69,20 @@
interrupt-parent = <&gpio>;
interrupts = <12 IRQ_TYPE_LEVEL_LOW>, /* GPIO12
- ALERT pin */
<13 IRQ_TYPE_LEVEL_LOW>; /* GPIO13
- CRIT pin */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Local temperature sensor (SA56004ED
internal) */
+ channel@0 {
+ reg = <0>;
+ label = "board";
+ };
+
+ /* Remote temperature sensor (D+/D- connected
to P2020 CPU Temperature Diode) */
+ channel@1 {
+ reg = <1>;
+ label = "cpu";
+ };
};
/* DDR3 SPD/EEPROM */
--
2.20.1
