OMAP sDMA driver API omap_stop_dma() doesn't really stop the dma when used
in linking scenario. This patch fixes the same.
Signed-off-by: Santosh Shilimkar <santosh.shilim...@ti.com>
Signed-off-by: Venkatraman S <svenk...@ti.com>
Reviewed-By: Tony Lindgren <t...@atomide.com>
CC: Hari n <hari.z...@gmail.com>
CC: Jarkko Nikula <jhnik...@gmail.com>
---
arch/arm/plat-omap/dma.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index fd3154a..1c933b4 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -987,6 +987,11 @@ void omap_stop_dma(int lch)
/* Mark the current channel */
dma_chan_link_map[cur_lch] = 1;
+ /* Disable the DMA channel */
+ l = dma_read(CCR(lch));
+ l &= ~OMAP_DMA_CCR_EN;
+ dma_write(l, CCR(lch));
+
disable_lnk(cur_lch);
next_lch = dma_chan[cur_lch].next_lch;
--
1.5.4.7
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