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From: Stephen Boyd <sboyd@kernel.org>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Rob Herring <robh+dt@kernel.org>,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] clk: add 74aup1g157gw 2-input multiplexer as clock driver
Date: Fri, 12 Oct 2018 09:06:42 -0700	[thread overview]
Message-ID: <153936040246.5275.14492857755273657122@swboyd.mtv.corp.google.com> (raw)
In-Reply-To: <87woqoaty1.wl-kuninori.morimoto.gx@renesas.com>

Quoting Kuninori Morimoto (2018-10-11 17:37:30)
> > > +       .recalc_rate    = clk74_recalc_rate,
> > > +       .get_parent     = clk74_get_parent,
> > > +};
> > 
> > Can this all be handled by the 'gpio-mux-clock' compatible/driver? I
> > suppose it may need an update to add the rounding policy that you want
> > via some sort of DT property, but otherwise it would be fine?
> 
> Hmm.. not sure.
> If we can add new feature (= .round_rate ?) on gpio-mux-clock,
> I can consider it.

Yes that would be the idea. Extend gpio-mux-clock driver to have what
you want with rounding. I'm not really sure why there is a rounding
policy needed though. Is it a static configuration at boot, or does the
code using this gpio clk need to search the parent rate space somehow
and mux it over?


  reply	other threads:[~2018-10-12 16:06 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-10  2:15 [PATCH 0/2] " Kuninori Morimoto
2018-10-10  2:16 ` [PATCH 1/2] dt-bindings: clock: add description of 74aup1g157gw Kuninori Morimoto
2018-10-17 16:05   ` Rob Herring
2018-10-18  0:15     ` Kuninori Morimoto
2018-10-10  2:16 ` [PATCH 2/2] clk: add 74aup1g157gw 2-input multiplexer as clock driver Kuninori Morimoto
2018-10-11  6:39   ` Stephen Boyd
2018-10-12  0:37     ` Kuninori Morimoto
2018-10-12 16:06       ` Stephen Boyd [this message]
2018-10-14 23:53         ` Kuninori Morimoto

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