net: icplus: fix interrupt mask

This patch fixes the interrupt mask for IC101 A/G devices
and now enables the link/speed/duplex interrupts.
This is done by setting the "INTR pin used" bit and cleaning
all the other bits in the Register 17.

Reported-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c
index 5ac46f5..47f8e89 100644 (file)
--- a/drivers/net/phy/icplus.c
+++ b/drivers/net/phy/icplus.c
@@ -41,6 +41,8 @@ MODULE_LICENSE("GPL");
 #define IP1001_APS_ON                  11      /* IP1001 APS Mode  bit */
 #define IP101A_G_APS_ON                        2       /* IP101A/G APS Mode bit */
 #define IP101A_G_IRQ_CONF_STATUS       0x11    /* Conf Info IRQ & Status Reg */
+#define        IP101A_G_IRQ_PIN_USED           (1<<15) /* INTR pin used */
+#define        IP101A_G_IRQ_DEFAULT            IP101A_G_IRQ_PIN_USED
 
 static int ip175c_config_init(struct phy_device *phydev)
 {
@@ -136,6 +138,11 @@ static int ip1001_config_init(struct phy_device *phydev)
        if (c < 0)
                return c;
 
+       /* INTR pin used: speed/link/duplex will cause an interrupt */
+       c = phy_write(phydev, IP101A_G_IRQ_CONF_STATUS, IP101A_G_IRQ_DEFAULT);
+       if (c < 0)
+               return c;
+
        if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
                /* Additional delay (2ns) used to adjust RX clock phase
                 * at RGMII interface */