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i2c: lpc32xx: use api to get hclk instead of fix value

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The HCLK is not constant and can take different value; use the api function to get the value of the HCLK for the I2C clock high and low computation.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
This commit is contained in:
Sylvain Lemieux 2015-07-27 13:37:37 -04:00 committed by Tom Rini
parent 2783fe6903
commit b395a996a6
1 changed files with 1 additions and 1 deletions
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drivers/i2c/lpc32xx_i2c.c
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@ -72,7 +72,7 @@ static unsigned int lpc32xx_i2c_set_bus_speed(struct i2c_adapter *adap,
if (speed == 0)
return -EINVAL;
half_period = (105000000 / speed) / 2;
half_period = (get_hclk_clk_rate() / speed) / 2;
if ((half_period > 255) || (half_period < 0))
return -EINVAL;