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i2c: at91_i2c: Remove unnecessary clock calling

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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>
This commit is contained in:
Wenyou Yang 2016-09-27 11:00:31 +08:00 • committed by Andreas Bießmann
parent d85d92ae7b
commit 2ccc07bbdc
1 changed files with 0 additions and 16 deletions
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16
drivers/i2c/at91_i2c.c
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@ -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) static int at91_i2c_enable_clk(struct udevice *dev)
{ {
struct at91_i2c_bus *bus = dev_get_priv(dev); struct at91_i2c_bus *bus = dev_get_priv(dev);
struct udevice *dev_clk;
struct clk clk; struct clk clk;
ulong clk_rate; ulong clk_rate;
int periph;
int ret; int ret;
ret = clk_get_by_index(dev, 0, &clk); ret = clk_get_by_index(dev, 0, &clk);
if (ret) if (ret)
return -EINVAL; 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); ret = clk_enable(&clk);
if (ret) if (ret)
return ret; return ret;
ret = clk_get_by_index(dev_clk, 0, &clk);
if (ret)
return ret;
clk_rate = clk_get_rate(&clk); clk_rate = clk_get_rate(&clk);
if (!clk_rate) if (!clk_rate)
return -ENODEV; return -ENODEV;