linux-kernel - Re: [PATCH 6/6] clk: samsung: exynos850: Keep some crucial clocks running

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Message-ID: <80a4e869-0a88-a523-2abd-37a0375e75c4@samsung.com>
Date:   Mon, 22 Nov 2021 11:01:57 +0100
From:   Sylwester Nawrocki <s.nawrocki@...sung.com>
To:     Sam Protsenko <semen.protsenko@...aro.org>,
        linux-clk <linux-clk@...r.kernel.org>
Cc:     David Virag <virag.david003@...il.com>,
        Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>
Subject: Re: [PATCH 6/6] clk: samsung: exynos850: Keep some crucial clocks
 running

On 22.11.2021 00:27, Sam Protsenko wrote:
> Some clocks shouldn't be automatically disabled in clk_disable_unused(),
> otherwise kernel hangs. Mark those clocks with:
>   - CLK_IS_CRITICAL flag, when there won't be any consumers for that
>     clock, but system can't function when it's gated
>   - CLK_IGNORE_UNUSED flag, when consumer driver will be probably added
>     later
> 
> That makes it possible to run the kernel without passing the
> "clk_ignore_unused" param.

Applied, thanks.