From 87d08b11b1616cbc70c28c9d3601bd1a3642bae5 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@googlemail.com>
Date: Fri, 10 Feb 2017 17:12:29 +0100
Subject: [PATCH] devicetree: add lm90 thermal_zone sensor support
This patch updates the LM90's devicetree definition to
include the #thermal-sensor-cells property as well as
the sensor constants in include/dt-bindings/thermal/lm90.h.
Cc: Wei Ni <wni@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
Documentation/devicetree/bindings/hwmon/lm90.txt | 6 ++++++
MAINTAINERS | 1 +
include/dt-bindings/thermal/lm90.h | 12 ++++++++++++
3 files changed, 19 insertions(+)
create mode 100644 include/dt-bindings/thermal/lm90.h
diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt
index e8632486b9ef5..97581266e3297 100644
--- a/Documentation/devicetree/bindings/hwmon/lm90.txt
+++ b/Documentation/devicetree/bindings/hwmon/lm90.txt
@@ -33,6 +33,11 @@ Optional properties:
LM90 "-ALERT" pin output.
See interrupt-controller/interrupts.txt for the format.
+- #thermal-sensor-cells: should be set to 1. See thermal/thermal.txt for
+ details. See <include/dt-bindings/thermal/lm90.h> for the
+ definition of the local, remote and 2nd remote sensor index
+ constants.
+
Example LM90 node:
temp-sensor {
@@ -41,4 +46,5 @@ temp-sensor {
vcc-supply = <&palmas_ldo6_reg>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>;
+ #thermal-sensor-cells = <1>;
}
diff --git a/MAINTAINERS b/MAINTAINERS
index cfff2c9e3d947..ad5bfb441dec4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7527,6 +7527,7 @@ S: Maintained
F: Documentation/hwmon/lm90
F: Documentation/devicetree/bindings/hwmon/lm90.txt
F: drivers/hwmon/lm90.c
+F: include/dt-bindings/thermal/lm90.h
LM95234 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
diff --git a/include/dt-bindings/thermal/lm90.h b/include/dt-bindings/thermal/lm90.h
new file mode 100644
index 0000000000000..8c2e3095f704e
--- /dev/null
+++ b/include/dt-bindings/thermal/lm90.h
@@ -0,0 +1,12 @@
+/*
+ * This header provides constants for the LM90 thermal bindings.
+ */
+
+#ifndef _DT_BINDINGS_THERMAL_LM90_H_
+#define _DT_BINDINGS_THERMAL_LM90_H_
+
+#define LM90_LOCAL_TEMPERATURE 0
+#define LM90_REMOTE_TEMPERATURE 1
+#define LM90_REMOTE2_TEMPERATURE 2
+
+#endif
--
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