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i2c: imx: add clk_prepare/clk_unprepare 

It's for migrating to generic clk framework API.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Richard Zhao 2011-11-15 14:48:08 +08:00 committed by Sascha Hauer
parent ef5ca193ca
commit 83914337d1
1 changed files with 2 additions and 2 deletions
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4
drivers/i2c/busses/i2c-imx.c
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@ -196,7 +196,7 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
clk_enable(i2c_imx->clk);
clk_prepare_enable(i2c_imx->clk);
writeb(i2c_imx->ifdr, i2c_imx->base + IMX_I2C_IFDR);
/* Enable I2C controller */
writeb(0, i2c_imx->base + IMX_I2C_I2SR);
@ -245,7 +245,7 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)
/* Disable I2C controller */
writeb(0, i2c_imx->base + IMX_I2C_I2CR);
clk_disable(i2c_imx->clk);
clk_disable_unprepare(i2c_imx->clk);
}
static void __init i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx,