[PATCH] Re: Endless "supply vcc not found, using dummy regulator"

["Steinar H. Gunderson" <sgunderson-jG/AHqQBv7lBDgjK7y7TUQ@public.gmane.org>]

On Tue, May 24, 2016 at 05:53:34PM +0200, Krzysztof Kozlowski wrote:
>         exynos->clk = devm_clk_get(dev, "usbdrd30");
>         if (IS_ERR(exynos->clk)) {
> +		// On each error path since here we need to
> +		// revert work done by dwc3_exynos_register_phys()
>                 dev_err(dev, "couldn't get clock\n");
>                 return -EINVAL;
>         }
>         clk_prepare_enable(exynos->clk);

OK, so I took Mark's advice and moved the phy instantiation towards the end
of the function (after the regulators have successfully come up). It reduced
the number of probes, even with the original initramfs, dramatically, so
it seems to work quite well. It also reduces the text for each deferred probe
by a lot, since we no longer have the dummy regulator message for each one
(only the message about “no suspend clk specified” is left). Finally, this
arrangement reduced the need for extra error handling to a minimum.

Cc-ing Felipe and and linux-usb@, and adding the patch as a reply to this
message.

/* Steinar */
-- 
Homepage: https://www.sesse.net/
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html