From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
Subject: Re: mt8173-evb: failing to boot in linux-next and mainline
Date: Mon, 28 Mar 2016 08:15:20 -0700
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In-Reply-To: <1459165876.24094.8.camel@mtksdaap41> (Eddie Huang's message of
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To: Eddie Huang <eddie.huang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Cc: Tyler Baker <tyler.baker-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
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Hi Eddie,

Eddie Huang <eddie.huang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> writes:

[...]

> Thanks your testing again. I can reproduce your case in my local
> environment using 4.6-rc1. After checking, there are two ways to avoid
> the hang:
> 1. set clk_ignore_unused to kernel command line
> 2. Revert patch "cc8ed76 soc: mediatek: SCPSYS: Fix double enabling of
> regulators"
>
> It seems there is a problem between turn on/off clock and power domain.
> We will try to fix this and send patch to public once have a solution.

Thanks for verifying.

I've confirmed that reverting the patch suggested above fixes the
problem.

Since -rc1 is out, and this problem still exists in mainline, if a
proper fix is not found very soon, I suggest reverting that patch in mainline.

Kevin