2 files changed, 24 insertions, 0 deletions

diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index 54380da343a5..63a089b29545 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -302,6 +302,21 @@ static int tifm_7xx1_resume(struct pci_dev *dev)
 
 #endif /* CONFIG_PM */
 
+static int tifm_7xx1_dummy_has_ms_pif(struct tifm_adapter *fm,
+                                      struct tifm_dev *sock)
+{
+        return 0;
+}
+
+static int tifm_7xx1_has_ms_pif(struct tifm_adapter *fm, struct tifm_dev *sock)
+{
+        if (((fm->num_sockets == 4) && (sock->socket_id == 2))
+            || ((fm->num_sockets == 2) && (sock->socket_id == 0)))
+                return 1;
+
+        return 0;
+}
+
 static int tifm_7xx1_probe(struct pci_dev *dev,
                            const struct pci_device_id *dev_id)
 {
@@ -336,6 +351,7 @@ static int tifm_7xx1_probe(struct pci_dev *dev,
 
         INIT_WORK(&fm->media_switcher, tifm_7xx1_switch_media);
         fm->eject = tifm_7xx1_eject;
+        fm->has_ms_pif = tifm_7xx1_has_ms_pif;
         pci_set_drvdata(dev, fm);
 
         fm->addr = ioremap(pci_resource_start(dev, 0),
@@ -377,6 +393,7 @@ static void tifm_7xx1_remove(struct pci_dev *dev)
         int cnt;
 
         fm->eject = tifm_7xx1_dummy_eject;
+        fm->has_ms_pif = tifm_7xx1_dummy_has_ms_pif;
         writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
         mmiowb();
         free_irq(dev->irq, fm);
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index 97544052e768..82dc72a1484f 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -284,6 +284,13 @@ void tifm_eject(struct tifm_dev *sock)
 }
 EXPORT_SYMBOL(tifm_eject);
 
+int tifm_has_ms_pif(struct tifm_dev *sock)
+{
+        struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
+        return fm->has_ms_pif(fm, sock);
+}
+EXPORT_SYMBOL(tifm_has_ms_pif);
+
 int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
                 int direction)
 {