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i2c: tegra: Add clk_prepare/clk_unprepare 

Use clk_prepare/clk_unprepare as required by the generic clk framework.

Cc: w.sang@pengutronix.de
Cc: linux-i2c@vger.kernel.org
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Prashant Gaikwad 2012-06-05 09:59:36 +05:30 committed by Stephen Warren
parent 6a5278d071
commit 6f786aad10
1 changed files with 5 additions and 5 deletions
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10
drivers/i2c/busses/i2c-tegra.c
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@ -341,7 +341,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
u32 val;
int err = 0;
clk_enable(i2c_dev->clk);
clk_prepare_enable(i2c_dev->clk);
tegra_periph_reset_assert(i2c_dev->clk);
udelay(2);
@ -372,7 +372,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
if (tegra_i2c_flush_fifos(i2c_dev))
err = -ETIMEDOUT;
clk_disable(i2c_dev->clk);
clk_disable_unprepare(i2c_dev->clk);
if (i2c_dev->irq_disabled) {
i2c_dev->irq_disabled = 0;
@ -546,14 +546,14 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
if (i2c_dev->is_suspended)
return -EBUSY;
clk_enable(i2c_dev->clk);
clk_prepare_enable(i2c_dev->clk);
for (i = 0; i < num; i++) {
int stop = (i == (num - 1)) ? 1 : 0;
ret = tegra_i2c_xfer_msg(i2c_dev, &msgs[i], stop);
if (ret)
break;
}
clk_disable(i2c_dev->clk);
clk_disable_unprepare(i2c_dev->clk);
return ret ?: i;
}
@ -666,7 +666,7 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
goto err_free;
}
clk_enable(i2c_dev->i2c_clk);
clk_prepare_enable(i2c_dev->i2c_clk);
i2c_set_adapdata(&i2c_dev->adapter, i2c_dev);
i2c_dev->adapter.owner = THIS_MODULE;