On Sat, Dec 17, 2016 at 3:24 AM, Alexey Khoroshilov
<khoroshilov@xxxxxxxxx> wrote:
> Dear Shubhrajyoti,
>
> Looking at 36ecbcab84d0 ("i2c: xiic: Implement power management")
> it is not clear why clk_prepare_enable(i2c->clk) is required in
> xiic_i2c_remove()?
834 ret = clk_prepare_enable(i2c->clk);
835 if (ret) {
836 dev_err(&pdev->dev, "Unable to enable clock.\n");
837 return ret;
838 }
839 xiic_deinit(i2c);
840 clk_disable_unprepare(i2c->clk);
so it is enabled and disabled after xiic_deinit.
>
> It is enabled in xiic_i2c_probe() and disabled/enabled in
> cdns_i2c_runtime_suspend()/cdns_i2c_runtime_resume().
>
> Could you please clarify the point.
>
> --
> Alexey Khoroshilov
> Linux Verification Center, ISPRAS
> web: http://linuxtesting.org
>
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