From e90460970fde8bdccf2147e899cb9953943e16d2 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Wed, 16 May 2012 17:28:29 +0200
Subject: [PATCH] gpu: ipu-v3: Add ipu_idmac_get_current_buffer function

This function returns the currently active buffer (0 or 1)
of a double buffered IDMAC channel. It is to be used by the
CSI driver.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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