niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

44
drivers/net/ethernet/realtek/r8169_main.c
View file

@ -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;