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[1/1] i2c: imx: convert clk_prepare/clk_unprepare

Message ID 1320901459-13208-1-git-send-email-richard.zhao@linaro.org
State Changes Requested
Headers show

Commit Message

Richard Zhao Nov. 10, 2011, 5:04 a.m. UTC 
Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
---
 drivers/i2c/busses/i2c-imx.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 58832e5..aad623b 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -196,6 +196,7 @@  static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
 
 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
 
+	clk_prepare(i2c_imx->clk);
 	clk_enable(i2c_imx->clk);
 	writeb(i2c_imx->ifdr, i2c_imx->base + IMX_I2C_IFDR);
 	/* Enable I2C controller */
@@ -246,6 +247,7 @@  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_unprepare(i2c_imx->clk);
 }
 
 static void __init i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx,