net: phy: dp83822: Fix reset pin definitions

JIRA: https://issues.redhat.com/browse/RHEL-57766

commit de96f6a
Author: Michel Alex <Alex.Michel@wiedemann-group.com>
Date:   Wed Oct 16 12:11:15 2024 +0000

    net: phy: dp83822: Fix reset pin definitions

    This change fixes a rare issue where the PHY fails to detect a link
    due to incorrect reset behavior.

    The SW_RESET definition was incorrectly assigned to bit 14, which is the
    Digital Restart bit according to the datasheet. This commit corrects
    SW_RESET to bit 15 and assigns DIG_RESTART to bit 14 as per the
    datasheet specifications.

    The SW_RESET define is only used in the phy_reset function, which fully
    re-initializes the PHY after the reset is performed. The change in the
    bit definitions should not have any negative impact on the functionality
    of the PHY.

    v2:
    - added Fixes tag
    - improved commit message

    Cc: stable@vger.kernel.org
    Fixes: 5dc39fd ("net: phy: DP83822: Add ability to advertise Fiber connection")
    Signed-off-by: Alex Michel <alex.michel@wiedemann-group.com>
    Reviewed-by: Andrew Lunn <andrew@lunn.ch>
    Message-ID: <AS1P250MB0608A798661549BF83C4B43EA9462@AS1P250MB0608.EURP250.PROD.OUTLOOK.COM>
    Signed-off-by: Andrew Lunn <andrew@lunn.ch>

Signed-off-by: Izabela Bakollari <ibakolla@redhat.com>

Author: Izabela Bakollari

drivers/net/phy/dp83822.c

@@ -45,8 +45,8 @@
 /* Control Register 2 bits */
 #define DP83822_FX_ENABLE	BIT(14)
 
-#define DP83822_HW_RESET	BIT(15)
-#define DP83822_SW_RESET	BIT(14)
+#define DP83822_SW_RESET	BIT(15)
+#define DP83822_DIG_RESTART	BIT(14)
 
 /* PHY STS bits */
 #define DP83822_PHYSTS_DUPLEX			BIT(2)