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From: Sam Protsenko <semen.protsenko@linaro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: "Chanwoo Choi" <cwchoi00@gmail.com>,
	"Sylwester Nawrocki" <s.nawrocki@samsung.com>,
	"Paweł Chmiel" <pawel.mikolaj.chmiel@gmail.com>,
	"Chanwoo Choi" <cw00.choi@samsung.com>,
	"Tomasz Figa" <tomasz.figa@gmail.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Stephen Boyd" <sboyd@kernel.org>,
	"Michael Turquette" <mturquette@baylibre.com>,
	"Ryu Euiyoul" <ryu.real@samsung.com>,
	"Tom Gall" <tom.gall@linaro.org>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"John Stultz" <john.stultz@linaro.org>,
	"Amit Pundir" <amit.pundir@linaro.org>,
	devicetree <devicetree@vger.kernel.org>,
	"linux-arm Mailing List" <linux-arm-kernel@lists.infradead.org>,
	linux-clk <linux-clk@vger.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Linux Samsung SOC" <linux-samsung-soc@vger.kernel.org>
Subject: Re: [PATCH 4/6] dt-bindings: clock: Add bindings definitions for Exynos850 CMU
Date: Wed, 6 Oct 2021 16:31:02 +0300	[thread overview]
Message-ID: <CAPLW+4m0yyk+E5GqYxfzXHxq1vKBoX3Mfc+6F6J_UXAfZ5s2Bg@mail.gmail.com> (raw)
In-Reply-To: <77d976c3-a0b4-294f-d49a-8fd46b112a28@canonical.com>

On Wed, 6 Oct 2021 at 13:49, Krzysztof Kozlowski
<krzysztof.kozlowski@canonical.com> wrote:
>
> On 05/10/2021 12:28, Sam Protsenko wrote:
> > On Wed, 15 Sept 2021 at 19:37, Chanwoo Choi <cwchoi00@gmail.com> wrote:
> >>
> >> Hi,
> >>
> >> You don't add clock ids for the all defined clocks in clk-exynos850.c.
> >> I recommend that add all clock ids for the defined clocks if possible.
> >>
> >> If you want to change the parent clock of mux or change the clock rate
> >> of div rate for some clocks, you have to touch the files as following:
> >> - include/dt-bindings/clock/exynos850.h
> >> - drivers/clk/samsung/clk-exynos850.c
> >> - exynos850 dt files
> >>
> >> If you define the clock ids for all clocks added to this patchset,
> >> you can change the parent or rate by just editing the dt files.
> >>
> >
> > Hi Chanwoo,
> >
> > I see your point. But I have intentionally omitted some clock ids,
> > which can't be / shouldn't be used by consumers in device tree.
> > Actually I took that idea from clk-exynos7.c.
> >
> > Krzysztof, Sylwester: can you please advice if all clock ids should be
> > defined, or only those that are going to be used in dts clk consumers?
> > I don't mind reworking the patch, just want to be sure which design
> > approach we want to follow.
> >
>
> I would advise to define all clock IDs, unless the clock really, really
> should not be used. Why do you think several clocks should not be used?
> Have in mind it is not only about consumers but also clock reparenting
> and assigning rates.
>

Thanks! Will be done in v2.

>
> Best regards,
> Krzysztof

  reply	other threads:[~2021-10-06 13:31 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-14 15:56 [PATCH 0/6] clk: samsung: Introduce Exynos850 SoC clock driver Sam Protsenko
2021-09-14 15:56 ` [PATCH 1/6] clk: samsung: Enable bus clock on init Sam Protsenko
2021-09-15  8:21   ` Krzysztof Kozlowski
2021-10-06 10:46     ` Sam Protsenko
2021-10-06 12:38       ` Krzysztof Kozlowski
2021-10-06 13:29         ` Sam Protsenko
2021-10-08  6:50           ` Krzysztof Kozlowski
2021-09-15 12:51   ` Sylwester Nawrocki
2021-10-06 11:18     ` Sam Protsenko
2021-10-06 12:45       ` Krzysztof Kozlowski
2021-10-09 18:49       ` Sylwester Nawrocki
2021-09-14 15:56 ` [PATCH 2/6] clk: samsung: clk-pll: Implement pll0822x PLL type Sam Protsenko
2021-09-15  8:24   ` Krzysztof Kozlowski
2021-09-15 15:59   ` Chanwoo Choi
2021-09-14 15:56 ` [PATCH 3/6] clk: samsung: clk-pll: Implement pll0831x " Sam Protsenko
2021-09-15  8:26   ` Krzysztof Kozlowski
2021-09-15 16:11   ` Chanwoo Choi
2021-09-14 15:56 ` [PATCH 4/6] dt-bindings: clock: Add bindings definitions for Exynos850 CMU Sam Protsenko
2021-09-15  8:27   ` Krzysztof Kozlowski
2021-09-15 16:37   ` Chanwoo Choi
2021-10-05 10:28     ` Sam Protsenko
2021-10-06 10:49       ` Krzysztof Kozlowski
2021-10-06 13:31         ` Sam Protsenko [this message]
2021-09-21 21:10   ` Rob Herring
2021-09-14 15:56 ` [PATCH 5/6] dt-bindings: clock: Document Exynos850 CMU bindings Sam Protsenko
2021-09-14 21:35   ` Rob Herring
2021-09-15  8:28   ` Krzysztof Kozlowski
2021-10-05 11:48     ` Sam Protsenko
2021-09-15 16:47   ` Chanwoo Choi
2021-09-14 15:56 ` [PATCH 6/6] clk: samsung: Introduce Exynos850 clock driver Sam Protsenko
2021-09-15  8:59   ` Krzysztof Kozlowski
2021-10-05 11:29     ` Sam Protsenko
2021-10-06 12:50       ` Krzysztof Kozlowski
2021-09-15 13:07   ` Sylwester Nawrocki
2021-10-05 11:36     ` Sam Protsenko
2021-10-06 12:46       ` Krzysztof Kozlowski
2021-09-15 18:04   ` Chanwoo Choi
2021-09-15 22:00     ` Sam Protsenko

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