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authorGary Zhang <b13634@freescale.com>2011-10-21 11:28:23 +0800
committerJason Liu <r64343@freescale.com>2012-07-20 13:16:42 +0800
commitc64381d0c36b79755c883ef590789546610a6bde (patch)
treee03843c90bac1bde65ff75ecfa7f1c9dd47276b8 /drivers/dma
parentefaf4c81197f430ba5ff694780166801caf5730a (diff)
ENGR00160512 SDMA: close clock when not used
When SDMA is not used, close SDMA clock. Signed-off-by: Gary Zhang <b13634@freescale.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/imx-sdma.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 34dd96a2f371..7dd48b11ee4c 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -833,11 +833,11 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
sdmac->peripheral_type = data->peripheral_type;
sdmac->event_id0 = data->dma_request;
- ret = sdma_set_channel_priority(sdmac, prio);
+ ret = sdma_request_channel(sdmac);
if (ret)
return ret;
- ret = sdma_request_channel(sdmac);
+ ret = sdma_set_channel_priority(sdmac, prio);
if (ret)
return ret;
@@ -1142,7 +1142,6 @@ static int __init sdma_get_firmware(struct sdma_engine *sdma,
addr = (void *)header + header->script_addrs_start;
ram_code = (void *)header + header->ram_code_start;
- clk_enable(sdma->clk);
/* download the RAM image for SDMA */
sdma_load_script(sdma, ram_code,
header->ram_code_size,