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References: <20211013172042.10884-1-semen.protsenko@linaro.org> <CAOMZO5CT+5=py=TBUMOZKRDsacNnGWV2TPBE7RtnZ3ocBBVReA@mail.gmail.com>
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From:   Sam Protsenko <semen.protsenko@linaro.org>
Date:   Tue, 19 Oct 2021 16:32:11 +0300
Message-ID: <CAPLW+4ne9xDxDW=RCzjXURujGCwbCU5mOrfPJ6bn2wY41jstiw@mail.gmail.com>
Subject: Re: [PATCH v6] clk: Add write operation for clk_parent debugfs node
To:     Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>
Cc:     Russell King <linux@armlinux.org.uk>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Sylwester Nawrocki <s.nawrocki@samsung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Mike Tipton <mdtipton@codeaurora.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Andy Shevchenko <andy@kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        linux-clk <linux-clk@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Fabio Estevam <festevam@gmail.com>
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On Wed, 13 Oct 2021 at 21:04, Fabio Estevam <festevam@gmail.com> wrote:
>
> Hi Sam,
>
> On Wed, Oct 13, 2021 at 2:20 PM Sam Protsenko
> <semen.protsenko@linaro.org> wrote:
> >
> > Useful for testing mux clocks. One can write the index of the parent to
> > be set into clk_parent node, starting from 0. Example
> >
> >     # cd /sys/kernel/debug/clk/mout_peri_bus
> >     # cat clk_possible_parents
> >       dout_shared0_div4 dout_shared1_div4
> >     # cat clk_parent
> >       dout_shared0_div4
> >     # echo 1 > clk_parent
> >     # cat clk_parent
> >       dout_shared1_div4
> >
> > CLOCK_ALLOW_WRITE_DEBUGFS has to be defined in drivers/clk/clk.c in
> > order to use this feature.
> >
> > Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
> > Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
>
> This is useful, thanks:
>
> Reviewed-by: Fabio Estevam <festevam@gmail.com>

Hi Michael, Stephen,

If there are no outstanding comments, can you please take this one?

Thanks!