linux-kernel - Re: [PATCH v5 12/44] clk: davinci: Add platform information for TI DA850 PSC

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Message-ID: <152303318048.143116.2883441215887455211@swboyd.mtv.corp.google.com>
Date:   Fri, 06 Apr 2018 09:46:20 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>, Sekhar Nori <nsekhar@...com>
Cc:     Michael Turquette <mturquette@...libre.com>,
        David Lechner <david@...hnology.com>,
        linux-clk <linux-clk@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...nel.org>,
        Adam Ford <aford173@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 12/44] clk: davinci: Add platform information for TI DA850 PSC

Quoting Sekhar Nori (2018-04-06 02:37:03)
> 
> Can you please check that and confirm there is no issue with genpd and 
> using CLK_OF_DECLARE() to initialize clocks?
> 
> Unless you report an issue back, or Mike and Stephen have ideas about 
> how to handle the dependency between PSC/PLL derived timer clock 
> initialization and and timer_probe(), I think we need to move back to 
> using CLK_OF_DECLARE(). 

In such a case, please use the hybrid approach where the clks required
for the clockevent and/or clocksource are registered in the early
CLK_OF_DECLARE path but the rest of the clks get registered with a
proper platform device and driver. There are examples of this approach
on other platforms already.