dma/imx-sdma: move clk_enable out of sdma_request_channel

It makes clk_enable/disable pair more readable, and fix one bug:
sdma_init calls sdma_request_channel, but seems don't know
sdma_request_channel enabled the clock.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
[fixed typo in commit log]
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 17a9d46bba15..1e0e516b481f 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -802,8 +802,6 @@ static int sdma_request_channel(struct sdma_channel *sdmac)
         sdma->channel_control[channel].base_bd_ptr = sdmac->bd_phys;
         sdma->channel_control[channel].current_bd_ptr = sdmac->bd_phys;
 
-        clk_enable(sdma->clk);
-
         sdma_set_channel_priority(sdmac, MXC_SDMA_DEFAULT_PRIORITY);
 
         init_completion(&sdmac->done);
@@ -873,6 +871,9 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
 
         sdmac->peripheral_type = data->peripheral_type;
         sdmac->event_id0 = data->dma_request;
+
+        clk_enable(sdmac->sdma->clk);
+
         ret = sdma_request_channel(sdmac);
         if (ret)
                 return ret;