diff options
Diffstat (limited to 'drivers/net/ethernet/realtek')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 0cc9baaecb1b..c506ffc1c019 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -16,6 +16,7 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/ethtool.h> +#include <linux/hwmon.h> #include <linux/phy.h> #include <linux/if_vlan.h> #include <linux/in.h> @@ -5363,6 +5364,43 @@ static bool rtl_aspm_is_safe(struct rtl8169_private *tp) return false; } +static umode_t r8169_hwmon_is_visible(const void *drvdata, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + return 0444; +} + +static int r8169_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct rtl8169_private *tp = dev_get_drvdata(dev); + int val_raw; + + val_raw = phy_read_paged(tp->phydev, 0xbd8, 0x12) & 0x3ff; + if (val_raw >= 512) + val_raw -= 1024; + + *val = 1000 * val_raw / 2; + + return 0; +} + +static const struct hwmon_ops r8169_hwmon_ops = { + .is_visible = r8169_hwmon_is_visible, + .read = r8169_hwmon_read, +}; + +static const struct hwmon_channel_info * const r8169_hwmon_info[] = { + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + NULL +}; + +static const struct hwmon_chip_info r8169_hwmon_chip_info = { + .ops = &r8169_hwmon_ops, + .info = r8169_hwmon_info, +}; + static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { struct rtl8169_private *tp; @@ -5537,6 +5575,12 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; + /* The temperature sensor is available from RTl8125B */ + if (IS_REACHABLE(CONFIG_HWMON) && tp->mac_version >= RTL_GIGA_MAC_VER_63) + /* ignore errors */ + devm_hwmon_device_register_with_info(&pdev->dev, "nic_temp", tp, + &r8169_hwmon_chip_info, + NULL); rc = register_netdev(dev); if (rc) return rc; |