On Tuesday 12 September 2017 07:28 AM, Baolin Wang wrote: >> @@ -802,13 +821,24 @@ static int davinci_i2c_probe(struct platform_device *pdev) >> dev->clk = devm_clk_get(&pdev->dev, NULL); >> if (IS_ERR(dev->clk)) >> return PTR_ERR(dev->clk); >> - clk_prepare_enable(dev->clk); > You removed clk enable here, I think it can not work if we did not > open CONFIG_PM macro. I think you should keep clk enable here, and set What do you mean by "open CONFIG_PM macro" ? > rpm active by pm_runtime_set_active() before issuing > pm_runtime_enable(). Can you explain why you want to do this instead of relying on pm_runtime_get_sync() to enable clock? Thanks, Sekhar
