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i2c: lpc32xx: use api to get hclk instead of fix value
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>
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@ -72,7 +72,7 @@ static unsigned int lpc32xx_i2c_set_bus_speed(struct i2c_adapter *adap,
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if (speed == 0)
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return -EINVAL;
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half_period = (105000000 / speed) / 2;
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half_period = (get_hclk_clk_rate() / speed) / 2;
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if ((half_period > 255) || (half_period < 0))
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return -EINVAL;
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