i2c: at91_i2c: Remove unnecessary clock calling

Due to the peripheral clock driver improvement, remove the
unnecessary clock calling.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

diff --git a/drivers/i2c/at91_i2c.c b/drivers/i2c/at91_i2c.c
index d71f75c..dcd3ce8 100644 (file)
--- a/drivers/i2c/at91_i2c.c
+++ b/drivers/i2c/at91_i2c.c
@@ -176,34 +176,18 @@ static void at91_calc_i2c_clock(struct udevice *dev, int i2c_clk)
 static int at91_i2c_enable_clk(struct udevice *dev)
 {
        struct at91_i2c_bus *bus = dev_get_priv(dev);
-       struct udevice *dev_clk;
        struct clk clk;
        ulong clk_rate;
-       int periph;
        int ret;
 
        ret = clk_get_by_index(dev, 0, &clk);
        if (ret)
                return -EINVAL;
 
-       periph = fdtdec_get_uint(gd->fdt_blob, clk.dev->of_offset, "reg", -1);
-       if (periph < 0)
-               return -EINVAL;
-
-       dev_clk = dev_get_parent(clk.dev);
-       ret = clk_request(dev_clk, &clk);
-       if (ret)
-               return ret;
-
-       clk.id = periph;
        ret = clk_enable(&clk);
        if (ret)
                return ret;
 
-       ret = clk_get_by_index(dev_clk, 0, &clk);
-       if (ret)
-               return ret;
-
        clk_rate = clk_get_rate(&clk);
        if (!clk_rate)
                return -ENODEV;