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| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2011-08-22 21:07:14 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-26 12:48:24 -0400 |
| commit | 6e6f400f5381e08dc80e1b5a37ed02a081c179d9 (patch) | |
| tree | 40eb251b991f078a62dd1b73b606956446c7db62 /drivers/net/phy/national.c | |
| parent | e2e6be56df37c371f564e127c154036b0c2211a1 (diff) | |
| download | talos-op-linux-6e6f400f5381e08dc80e1b5a37ed02a081c179d9.tar.gz talos-op-linux-6e6f400f5381e08dc80e1b5a37ed02a081c179d9.zip | |
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: Thorsten Schubert <tshu@msc-ge.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/national.c')
| -rw-r--r-- | drivers/net/phy/national.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/phy/national.c b/drivers/net/phy/national.c index 0620ba963508..04bb8fcc0cb5 100644 --- a/drivers/net/phy/national.c +++ b/drivers/net/phy/national.c @@ -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) |
