OMAPDSS: move omap_dispc_wait_for_irq_interruptible_timeout to dispc-compat.c

We have two functions to wait for a dispc interrupt:

int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,

Of these, the former is not used at all, and can be removed. The latter
is only used by the compat layer, and can be moved to the compat layer
code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/dispc-compat.c b/drivers/video/omap2/dss/dispc-compat.c
index cca38488ab27..24e1d5e974eb 100644
--- a/drivers/video/omap2/dss/dispc-compat.c
+++ b/drivers/video/omap2/dss/dispc-compat.c
@@ -205,3 +205,33 @@ void dispc_mgr_disable_sync(enum omap_channel channel)
 		WARN_ON(1);
 }
 
+int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
+		unsigned long timeout)
+{
+	void dispc_irq_wait_handler(void *data, u32 mask)
+	{
+		complete((struct completion *)data);
+	}
+
+	int r;
+	DECLARE_COMPLETION_ONSTACK(completion);
+
+	r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
+			irqmask);
+
+	if (r)
+		return r;
+
+	timeout = wait_for_completion_interruptible_timeout(&completion,
+			timeout);
+
+	omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
+
+	if (timeout == 0)
+		return -ETIMEDOUT;
+
+	if (timeout == -ERESTARTSYS)
+		return -ERESTARTSYS;
+
+	return 0;
+}