[NIU]: Fix link LED handling.

The LED in the current driver will not be controlled correctly. During
a link change the carrier of the link is not available and the LED
will never turn on.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 4 deletions

diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 112ab079ce7d..abfc61c3a38c 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -1045,6 +1045,7 @@ static int niu_serdes_init(struct niu *np)
 }
 
 static void niu_init_xif(struct niu *);
+static void niu_handle_led(struct niu *, int status);
 
 static int niu_link_status_common(struct niu *np, int link_up)
 {
@@ -1066,11 +1067,15 @@ static int niu_link_status_common(struct niu *np, int link_up)
 
                 spin_lock_irqsave(&np->lock, flags);
                 niu_init_xif(np);
+                niu_handle_led(np, 1);
                 spin_unlock_irqrestore(&np->lock, flags);
 
                 netif_carrier_on(dev);
         } else if (netif_carrier_ok(dev) && !link_up) {
                 niuwarn(LINK, "%s: Link is down\n", dev->name);
+                spin_lock_irqsave(&np->lock, flags);
+                niu_handle_led(np, 0);
+                spin_unlock_irqrestore(&np->lock, flags);
                 netif_carrier_off(dev);
         }
 
@@ -3915,16 +3920,14 @@ static int niu_init_ipp(struct niu *np)
         return 0;
 }
 
-static void niu_init_xif_xmac(struct niu *np)
+static void niu_handle_led(struct niu *np, int status)
 {
-        struct niu_link_config *lp = &np->link_config;
         u64 val;
-
         val = nr64_mac(XMAC_CONFIG);
 
         if ((np->flags & NIU_FLAGS_10G) != 0 &&
             (np->flags & NIU_FLAGS_FIBER) != 0) {
-                if (netif_carrier_ok(np->dev)) {
+                if (status) {
                         val |= XMAC_CONFIG_LED_POLARITY;
                         val &= ~XMAC_CONFIG_FORCE_LED_ON;
                 } else {
@@ -3933,6 +3936,15 @@ static void niu_init_xif_xmac(struct niu *np)
                 }
         }
 
+        nw64_mac(XMAC_CONFIG, val);
+}
+
+static void niu_init_xif_xmac(struct niu *np)
+{
+        struct niu_link_config *lp = &np->link_config;
+        u64 val;
+
+        val = nr64_mac(XMAC_CONFIG);
         val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
 
         val |= XMAC_CONFIG_TX_OUTPUT_EN;
@@ -4776,6 +4788,8 @@ static int niu_close(struct net_device *dev)
 
         niu_free_channels(np);
 
+        niu_handle_led(np, 0);
+
         return 0;
 }