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net: dsa: Add support for reporting switch chip temperatures

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

Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Guenter Roeck 2014-10-29 10:44:58 -07:00 • committed by David S. Miller
commit 51579c3f1a
3 changed files with 158 additions and 0 deletions
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16
include/net/dsa.h
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@ -139,6 +139,14 @@ struct dsa_switch {
*/
struct device *master_dev;
#ifdef CONFIG_NET_DSA_HWMON
/*
* Hardware monitoring information
*/
char hwmon_name[IFNAMSIZ + 8];
struct device *hwmon_dev;
#endif
/*
* Slave mii_bus and devices for the individual ports.
*/
@ -242,6 +250,14 @@ struct dsa_switch_driver {
struct ethtool_eee *e);
int (*get_eee)(struct dsa_switch *ds, int port,
struct ethtool_eee *e);
#ifdef CONFIG_NET_DSA_HWMON
/* Hardware monitoring */
int (*get_temp)(struct dsa_switch *ds, int *temp);
int (*get_temp_limit)(struct dsa_switch *ds, int *temp);
int (*set_temp_limit)(struct dsa_switch *ds, int temp);
int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
#endif
};
void register_switch_driver(struct dsa_switch_driver *type);