Messages in this thread | | | Date | Mon, 1 Aug 2016 14:11:39 +0200 | From | Jean-Francois Moine <> | Subject | Re: [PATCH 00/13] arm64: Allwinner A64 support based on sunxi-ng |
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On Mon, 1 Aug 2016 20:01:49 +0800 Chen-Yu Tsai <wens@csie.org> wrote:
> On Mon, Aug 1, 2016 at 8:00 PM, Jean-Francois Moine <moinejf@free.fr> wrote: > > On Mon, 1 Aug 2016 17:13:34 +0800 > > Chen-Yu Tsai <wens@csie.org> wrote: > > > >> > But I don't see why you are keeping the simple-gates. The bus gate may > >> > be ungated/gated when the clock is enabled/disabled, and that's what > >> > Allwinner's software does. > >> > >> For peripherals that have a separate mod clock, having them separate > >> is a good thing. One example might be the audio codecs. You could ungate > >> the bus gate to access its registers to program it, but only enable > >> the mod clock when you actually play something. > > > > The roles of the bus gate and the clock gate are the same. I don't see > > any reason to set one gate without setting the other one. More, the > > spec says what the bus gate must be enabled before the clock gate (and > > reverse order while disabling). So, setting both gates in one function > > call seems safer. > > Wha? Aren't bus gates and clock gates the same thing in this context?
Yes. What is the problem?
-- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/
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