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r8169: add support for the temperature sensor being available from RTL8125B

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This adds support for the temperature sensor being available from
RTL8125B. Register information was taken from r8125 vendor driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2024-10-07 20:34:12 +02:00 • committed by David S. Miller
parent 2a80d89256
commit 1ffcc8d413
1 changed files with 44 additions and 0 deletions
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44
drivers/net/ethernet/realtek/r8169_main.c
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@ -16,6 +16,7 @@
#include <linux/clk.h> #include <linux/clk.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/ethtool.h> #include <linux/ethtool.h>
#include <linux/hwmon.h>
#include <linux/phy.h> #include <linux/phy.h>
#include <linux/if_vlan.h> #include <linux/if_vlan.h>
#include <linux/in.h> #include <linux/in.h>
@ -5363,6 +5364,43 @@ static bool rtl_aspm_is_safe(struct rtl8169_private *tp)
return false; 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) static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{ {
struct rtl8169_private *tp; 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) if (rc)
return 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); rc = register_netdev(dev);
if (rc) if (rc)
return rc; return rc;