On Wed, Dec 14, 2011 at 04:55:27PM +0800, Barry Song wrote: > +static int __devinit i2c_sirfsoc_probe(struct platform_device *pdev) > +{ > + struct clk *clk; > + > + clk = clk_get(&pdev->dev, NULL); > + err = clk_prepare(clk); > + err = clk_enable(clk); ... > + clk_disable(clk); > + > + dev_info(&pdev->dev, " I2C adapter ready to operate\n"); > + > + return 0; > +} > + > +static int __devexit i2c_sirfsoc_remove(struct platform_device *pdev) > +{ > + clk_disable(siic->clk); > + clk_unprepare(siic->clk); > + clk_put(siic->clk); This doesn't look right - look at the state which you leave the clk in upon successful probe, and now look at what you do when you do a remove. It seems that you disable an already disabled clock to me. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html