memstick: initial commit for Sony MemoryStick support

Sony MemoryStick cards are used in many products manufactured by Sony.
They are available both as storage and as IO expansion cards.  Currently,
only MemoryStick Pro storage cards are supported via TI FlashMedia
MemoryStick interface.

[mboton@gmail.com: biuld fix]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Miguel Boton <mboton@gmail.co>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index 54380da343a..63a089b2954 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);