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authorJon Hunter <jon-hunter@ti.com>2013-02-26 12:27:24 -0600
committerVinod Koul <vinod.koul@intel.com>2013-04-15 09:51:19 +0530
commit8d30662aac256eb61bc2f1d9cf1191825ef96328 (patch)
treefd39f755ea7cd13fbc79e2d3b06310caf2f07c62 /arch/arm/mach-omap2/dma.c
parentf5b9b77eea1f9aaf7725872be4b382f5530bb41e (diff)
downloadlinux-8d30662aac256eb61bc2f1d9cf1191825ef96328.tar.gz
dmaengine: OMAP: Register SDMA controller with Device Tree DMA driver
If the device-tree blob is present during boot, then register the SDMA controller with the device-tree DMA driver so that we can use device-tree to look-up DMA client information. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'arch/arm/mach-omap2/dma.c')
-rw-r--r--arch/arm/mach-omap2/dma.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index dab9fc014b97..49fd0d501c9b 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/of.h>
#include <linux/omap-dma.h>
#include "soc.h"
@@ -304,6 +305,9 @@ static int __init omap2_system_dma_init(void)
if (res)
return res;
+ if (of_have_populated_dt())
+ return res;
+
pdev = platform_device_register_full(&omap_dma_dev_info);
if (IS_ERR(pdev))
return PTR_ERR(pdev);