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Commit 6e6f400f authored by Giuseppe CAVALLARO's avatar Giuseppe CAVALLARO Committed by David S. Miller
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net/phy: fix DP83865 phy interrupt handler 



According to the DP83865 datasheet we need to clear
the interrupt status bit by writing a 1 to the
corresponding bit in INT_CLEAR (2:0 are reserved).

Proposed and tested by Thorsten.

Signed-off-by: default avatarThorsten Schubert <tshu@msc-ge.com>
Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e2e6be56

drivers/net/phy/national.c

+11 −6
Original line number Diff line number Diff line
@@ -25,8 +25,9 @@ 
/* DP83865 phy identifier values */

#define DP83865_PHY_ID	0x20005c7a



#define DP83865_INT_MASK_REG 0x15

#define DP83865_INT_MASK_STATUS 0x14

#define DP83865_INT_STATUS	0x14

#define DP83865_INT_MASK	0x15

#define DP83865_INT_CLEAR	0x17



#define DP83865_INT_REMOTE_FAULT 0x0008

#define DP83865_INT_ANE_COMPLETED 0x0010
@@ -68,21 +69,25 @@ static int ns_config_intr(struct phy_device *phydev) 
	int err;



	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)

		err = phy_write(phydev, DP83865_INT_MASK_REG,

		err = phy_write(phydev, DP83865_INT_MASK,

				DP83865_INT_MASK_DEFAULT);

	else

		err = phy_write(phydev, DP83865_INT_MASK_REG, 0);

		err = phy_write(phydev, DP83865_INT_MASK, 0);



	return err;

}



static int ns_ack_interrupt(struct phy_device *phydev)

{

	int ret = phy_read(phydev, DP83865_INT_MASK_STATUS);

	int ret = phy_read(phydev, DP83865_INT_STATUS);

	if (ret < 0)

		return ret;



	return 0;

	/* Clear the interrupt status bit by writing a “1”

	 * to the corresponding bit in INT_CLEAR (2:0 are reserved) */

	ret = phy_write(phydev, DP83865_INT_CLEAR, ret & ~0x7);



	return ret;

}



static void ns_giga_speed_fallback(struct phy_device *phydev, int mode)