linux-kernel - Re: [PATCH v3 2/3] ARM: dts: exynos: Add assigned clock parent to CMU in Exynos4412 Odroid

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <d53d0b67-2368-1434-ab00-fb37b1e824a6@samsung.com>
Date:   Mon, 21 Sep 2020 11:42:40 +0200
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Kukjin Kim <kgene@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>
Subject: Re: [PATCH v3 2/3] ARM: dts: exynos: Add assigned clock parent to
 CMU in Exynos4412 Odroid

Hi Krzysztof,

On 11.09.2020 16:54, Krzysztof Kozlowski wrote:
> On Sun, Sep 06, 2020 at 04:21:45PM +0200, Krzysztof Kozlowski wrote:
>> Commit 68605101460e ("ARM: dts: exynos: Add support for audio over HDMI
>> for Odroid X/X2/U3") added assigned clocks under Clock Management Unit.
>>
>> However the dtschema expects "clocks" property if "assigned-clocks" are
>> used.  Add reference to input clock, the parent used in
>> "assigned-clock-parents" to silence the dtschema warnings:
>>
>>    arch/arm/boot/dts/exynos4412-odroidu3.dt.yaml: clock-controller@...30000: 'clocks' is a dependency of 'assigned-clocks'
>>
> Applied.

This patch breaks operation of clocks on Odroid X2/U3:

# dmesg | grep clk
[    0.000000] exynos_clkout_init: failed to register clkout clock
[    0.000000] Exynos4x12 clocks: sclk_apll = 1000000000, sclk_mpll = 
800000000
                 sclk_epll = 45158401, sclk_vpll = 350000000, arm_clk = 
1000000000
[    2.569484] usb3503 0-0008: unable to request refclk (-517)
[    2.848718] s3c-sdhci 12530000.sdhci: clock source 2: mmc_busclk.2 
(50000000 Hz)
[    3.373850] usb3503 0-0008: unable to request refclk (-517)
[    3.542777] usb3503 0-0008: unable to request refclk (-517)
[    3.544005] usb3503 0-0008: unable to request refclk (-517)
[    3.559223] usb3503 0-0008: unable to request refclk (-517)

Please revert or drop if possible.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland