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Subject: Re: [PATCH] clk: tegra: mark TEGRA210_CLK_DBGAPB as always on
To: Geert Uytterhoeven <geert@linux-m68k.org>
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From: Jon Hunter <jonathanh@nvidia.com>
Message-ID: <313f1245-02aa-496c-3545-5029ece652af@nvidia.com>
Date: Wed, 8 Mar 2017 11:48:21 +0000
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On 08/03/17 11:38, Geert Uytterhoeven wrote:
> Hi Jon,
> 
> On Wed, Mar 8, 2017 at 11:13 AM, Jon Hunter <jonathanh@nvidia.com> wrote:
>>> I had a similar issue with SH-Mobile AG5, where the power domain containing
>>> the JTAG interface is powered down.
>>
>> This reminds me, does your patch assume that the DFD power domain is
>> enabled? I am guessing that it needs to be for JTAG to work.
> 
> Yes. The pm-rmobile driver looks for "arm,coresight-etm3x" devices, and
> marks the corresponding PM Domain as always-on, as long as the
> Coresight code doesn't handle runtime PM.

Sorry Geert, but I was asking Peter specifically about the power-domain
on Tegra as I have a feeling we may have the same scenario ;-)

Jon

-- 
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