linux-kernel - Re: [v4.13-rc1 fixes] ARM: dts: exynos: Add clocks to audss block to fix silent hang on Exynos4412

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Message-ID: <CAK8P3a35EbCtHbe_fnFxs2206jbDewyL_Awzm1fgZHz9qFTNGg@mail.gmail.com>
Date:   Thu, 27 Jul 2017 12:54:00 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Olof Johansson <olof@...om.net>, arm-soc <arm@...nel.org>,
        "moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES" 
        <linux-samsung-soc@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [v4.13-rc1 fixes] ARM: dts: exynos: Add clocks to audss block to
 fix silent hang on Exynos4412

On Mon, Jul 17, 2017 at 9:45 PM, Krzysztof Kozlowski <krzk@...nel.org> wrote:
> Add necessary parent clocks for audss (Audio SubSystem, MAUDIO) clock
> controller block.
>
> This allows driver to keep EPLL enabled before accessing any MAUDIO
> registers thus fixing silent hang.  This silent hang appeared with
> commit 6edfa11cb396 ("clk: samsung: Add enable/disable operation for
> PLL36XX clocks"), e.g. on Odroid U3 usually with last (but unrelated)
> messages:
>
>         [    2.382741] input: gpio_keys as /devices/platform/gpio_keys/input/input0
>         [    2.405686] usb 1-3: new high-speed USB device number 3 using exynos-ehci
>         [    2.419843] max77686-rtc max77686-rtc: setting system clock to 2017-06-21 17:04:13 UTC (1498064653)
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>
> Hi Arnd, Olof,
>
> I have only one patch in fixes queue for v4.13, so how about applying this
> directly without a pull request?

No problem, I was just a little slow here. Applied to fixes now, thanks.

      Arnd