ENGR00298338 PXP: fix hang issue due to read pxp reg when clk disabled

The function dump_pxp_reg() may be called when the pxp
clock is disabled. So this will cause system hang issue.
Now add clock enable/disable pair to this function call.

Signed-off-by: Fancy Fang <chen.fang@freescale.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/dma/pxp/pxp_dma_v2.c b/drivers/dma/pxp/pxp_dma_v2.c
index 6afec14f5002..c644604227ff 100644
--- a/drivers/dma/pxp/pxp_dma_v2.c
+++ b/drivers/dma/pxp/pxp_dma_v2.c
@@ -1786,7 +1786,9 @@ static int pxp_probe(struct platform_device *pdev)
         }
 
         device_create_file(&pdev->dev, &dev_attr_block_size);
+        pxp_clk_enable(pxp);
         dump_pxp_reg(pxp);
+        pxp_clk_disable(pxp);
 
         INIT_WORK(&pxp->work, clkoff_callback);
         init_timer(&pxp->clk_timer);