dma: imx-dma: Add oftree support

Adding devicetree support for imx-dma driver. Use driver name for
function 'imx_dma_is_general_purpose' because the devicename for
devicetree initialized devices is different.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h
index f6d30cc1cb77..beac6b8b6a7b 100644
--- a/include/linux/platform_data/dma-imx.h
+++ b/include/linux/platform_data/dma-imx.h
@@ -60,10 +60,8 @@ static inline int imx_dma_is_ipu(struct dma_chan *chan)
 
 static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
 {
-        return strstr(dev_name(chan->device->dev), "sdma") ||
-                !strcmp(dev_name(chan->device->dev), "imx1-dma") ||
-                !strcmp(dev_name(chan->device->dev), "imx21-dma") ||
-                !strcmp(dev_name(chan->device->dev), "imx27-dma");
+        return !strcmp(chan->device->dev->driver->name, "imx-sdma") ||
+                !strcmp(chan->device->dev->driver->name, "imx-dma");
 }
 
 #endif