Hello,
On 15.03.2016 11:51, Gao Pan wrote:
> Add i.MX7ULP i2c bus driver which can continue operating
> in stop modes provided an appropriate clock is available.
>
> It is also designed for low CPU overhead with DMA offloading
> of FIFO register accesses.
>
> Signed-off-by: Gao Pan <pandy.gao@xxxxxxx>
> ---
[snip]
> +
> +static int i2c_imx7ulp_start(struct imx7ulp_i2c_struct *i2c_imx7ulp)
> +{
> + int ret;
> + unsigned int temp;
> +
> + dev_dbg(&i2c_imx7ulp->adapter.dev, "<%s>\n", __func__);
> +
> + ret = clk_prepare_enable(i2c_imx7ulp->bus_clk);
> + if (ret) {
> + dev_err(&i2c_imx7ulp->adapter.dev,
> + "can't enable I2C bus clock, ret=%d\n", ret);
> + return ret;
> + }
> +
> + ret = clk_prepare_enable(i2c_imx7ulp->per_clk);
> + if (ret) {
> + dev_err(&i2c_imx7ulp->adapter.dev,
> + "can't enable I2C peripheral clock, ret=%d\n", ret);
> + return ret;
Leaked prepared/enabled i2c_imx7ulp->bus_clk clock on error path.
> + }
> +
--
With best wishes,
Vladimir
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