OMAP4 Mailbox driver - Includes Hiroshi's changes on mailbox driver along with...

OMAP4 Mailbox driver - Includes Hiroshi's changes on mailbox driver along with API changes introducted in the 2.6.31 kernel

This patch cleans up the mailbox driver module and adds the
following changes:
	- Remove sequence bit checking (protocol logic not
		required in the driver)
	- Remove class interface (not used presently)
	- Remove disalbe_/enable_mbox_irq in isr (No irqs
		happen in the isr)
	- Remove unnecessary arg for omap_mbox_msg_send
	- Expose omap_mbox_enable()/disable_irq()

NOTE::
For OMAP4 the tx work queue does not ssem to function
properly. Hence, calling __mbox_msg_send for now.
Signed-off-by: C A Subramaniam <subramaniam.ca@ti.com>
Signed-off-by: Ramesh Gupta G <grgupta@ti.com>

arch/arm/plat-omap/include/mach/mailbox.h

@@ -8,7 +8,6 @@
 #include <linux/blkdev.h>
 
 typedef u32 mbox_msg_t;
-typedef void (mbox_receiver_t)(mbox_msg_t msg);
 struct omap_mbox;
 
 typedef int __bitwise omap_mbox_irq_t;
@@ -29,8 +28,10 @@ struct omap_mbox_ops {
 	int		(*fifo_empty)(struct omap_mbox *mbox);
 	int		(*fifo_full)(struct omap_mbox *mbox);
 	/* irq */
-	void		(*enable_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
-	void		(*disable_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
+	void		(*enable_irq)(struct omap_mbox *mbox,
+						omap_mbox_irq_t irq);
+	void		(*disable_irq)(struct omap_mbox *mbox,
+						omap_mbox_irq_t irq);
 	void		(*ack_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
 	int		(*is_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq);
 	/* ctx */
@@ -64,7 +65,7 @@ struct omap_mbox {
 	void			(*err_notify)(void);
 };
 
-int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg, void *);
+int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg);
 void omap_mbox_init_seq(struct omap_mbox *);
 
 struct omap_mbox *omap_mbox_get(const char *);
@@ -93,4 +94,16 @@ static inline void omap_mbox_restore_ctx(struct omap_mbox *mbox)
 	mbox->ops->restore_ctx(mbox);
 }
 
+static inline void omap_mbox_enable_irq(struct omap_mbox *mbox,
+					omap_mbox_irq_t irq)
+{
+	mbox->ops->enable_irq(mbox, irq);
+}
+
+static inline void omap_mbox_disable_irq(struct omap_mbox *mbox,
+					 omap_mbox_irq_t irq)
+{
+	mbox->ops->disable_irq(mbox, irq);
+}
+
 #endif /* MAILBOX_H */