net: dsa: Add support for reporting switch chip temperatures

Some switches provide chip temperature data.
Add support for reporting it through the hwmon subsystem.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index a585fd6352eb..5f8ac404535b 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -11,6 +11,17 @@ config NET_DSA
 
 if NET_DSA
 
+config NET_DSA_HWMON
+        bool "Distributed Switch Architecture HWMON support"
+        default y
+        depends on HWMON && !(NET_DSA=y && HWMON=m)
+        ---help---
+          Say Y if you want to expose thermal sensor data on switches supported
+          by the Distributed Switch Architecture.
+
+          Some of those switches contain thermal sensors. This data is available
+          via the hwmon sysfs interface and exposes the onboard sensors.
+
 # tagging formats
 config NET_DSA_TAG_BRCM
         bool