ENGR00217732-1: revert back rngc code

Revert to rngc code before as we will add dummy clock for it.

Signed-off-by: Terry Lv <r65388@freescale.com>

diff --git a/drivers/char/hw_random/fsl-rngc.c b/drivers/char/hw_random/fsl-rngc.c
index 5efe810b1aabb610325dad05cc7badaf099bef37..0ce3299639b1f804a27a5fe95a0aacd39c88d8d0 100644 (file)
--- a/drivers/char/hw_random/fsl-rngc.c
+++ b/drivers/char/hw_random/fsl-rngc.c
@@ -135,7 +135,7 @@ static int fsl_rngc_data_present(struct hwrng *rng, int wait)
        return level > 0 ? 1 : 0;
 }
 
-static int fsl_rngc_data_read(struct hwrng *rng, u32 *data)
+static int fsl_rngc_data_read(struct hwrng *rng, u32 * data)
 {
        int err;
        u32 rngc_base = (u32) rng->priv;
@@ -293,10 +293,13 @@ static int __init fsl_rngc_probe(struct platform_device *pdev)
 
        clk = clk_get(&pdev->dev, "rng_clk");
 
-       if (IS_ERR(clk))
-               dev_warn(&pdev->dev, "No rng_clk specified\n");
-       else
-               clk_enable(clk);
+       if (IS_ERR(clk)) {
+               dev_err(&pdev->dev, "Can not get rng_clk\n");
+               err = PTR_ERR(clk);
+               return err;
+       }
+
+       clk_enable(clk);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
@@ -337,7 +340,7 @@ static int __exit fsl_rngc_remove(struct platform_device *pdev)
        clk = clk_get(&pdev->dev, "rng_clk");
 
        if (IS_ERR(clk))
-               dev_warn(&pdev->dev, "No rng_clk specified\n");
+               dev_err(&pdev->dev, "Can not get rng_clk\n");
        else
                clk_disable(clk);