From 23b5e3ad68a3c26a6a36039ea907997664aedcab Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Fri, 6 May 2011 19:56:52 +0200
Subject: dmaengine: at_hdmac: implement pause and resume in atc_control

Pause and resume controls are useful for audio devices. This also returns
correct status from atc_tx_status() in case chan is paused.

Idea from dw_dmac patch by Linus Walleij.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/at_hdmac_regs.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/dma/at_hdmac_regs.h')

diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index ae3056df4f4b..087dbf1dd39c 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -191,6 +191,7 @@ txd_to_at_desc(struct dma_async_tx_descriptor *txd)
  */
 enum atc_status {
 	ATC_IS_ERROR = 0,
+	ATC_IS_PAUSED = 1,
 	ATC_IS_CYCLIC = 24,
 };
 
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