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Re: Kernel quirks on QNAP TS-109 (Marvell orion)

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Le 26/07/2019 à 11:29, Arnaud Patard (Rtp) a écrit :
> Martin Michlmayr <tbm@cyrius.com> writes:
>> * Matthieu CERDA <kegeruneku+debianarm@ironflake.org> [2019-07-26 00:17]:
>>>   * On stretch stock kernel (4.9.0-9-marvell), qcontrol does not work:
>>>     calling it with "qcontrol --direct buzzer" outputs no error, but
>>>     does nothing, and the status led stays red/green after system has
>>>     booted.
>> There are different potential causes for this but I think I've seen
>> this before myself and this particular issue hasn't been reported.

I'll open a bug report on the Debian package to discuss the issue there.

>>>   * On stretch backports kernel (4.19.0-0.bpo.5-marvell), qcontrol does
>>>     not work as well, and more annoyingly, no Ethernet interface gets
>>>     initialized. dmesg shows a kernel oops. (copy attached)
>> This sounds like https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908712
Yep, I looks like the exact same issue. I'll be happy to help if I can,
at least by testing the fix that Arnaud proposed below :)
> As noted in the bug, might worth reporting to Andrew. iirc ts109 are
> devices without device tree and I'm curious to see how the kernel handle
> things like of_clk_get(pdev->dev.of_node, i) on a system without DT.
> of_clk_get() is coded like this:
>
> struct clk *of_clk_get(struct device_node *np, int index)
> {
>         return __of_clk_get(np, index, np->full_name, NULL);
> }
>
> afair in systems without DT, of_node is null, np->full_name has high
> chances to crash. Again, as noted by the bug, it's likely coming from
> 96cb4342382290c935d933a08feb57d6d0183071 which is replacing
> the devm_clk_get() call to of_clk_get().
>
> Might worth trying to build a kernel with code looking like
> (not even compile tested):
>
> if (pdev->dev.of_node) {
>         for (i = 0; i < ARRAY_SIZE(dev->clk); i++) {
>             dev->clk[i] = of_clk_get(pdev->dev.of_node, i);
> ...
>         }
>         if (!IS_ERR(of_clk_get(pdev->dev.of_node, ARRAY_SIZE(dev->clk))))
>         ...
>         
> else {
>      dev->clk[0] = clk_get(&pdev->dev, NULL);
>      if (!IS_ERR(dev->clk[0]))
>         clk_prepare_enable(dev->clk[0]);
> }
>
>
> Arnaud.

All right, I'll try to build a 4.19.0-0.bpo.5-marvell-based kernel with
the patch.

I will also try building a linux master-based kernel, to test if
https://github.com/torvalds/linux/commit/433a06d7d74e677c40b1148c70c48677ff62fb6b
solves the issue.

Thank you for the help to both of you :) (and also, thank you Martin for
the highly detailed website and instructions about QNAP devices)

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Thread

Re: Kernel quirks on QNAP TS-109 (Marvell orion) Martin Michlmayr <tbm@cyrius.com> - 2019-07-26 10:30 +0200
  Re: Kernel quirks on QNAP TS-109 (Marvell orion) Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> - 2019-07-26 11:40 +0200
    Re: Kernel quirks on QNAP TS-109 (Marvell orion) Matthieu CERDA <kegeruneku+debianarm@ironflake.org> - 2019-07-26 22:40 +0200
      Re: Kernel quirks on QNAP TS-109 (Marvell orion) Matthieu CERDA <kegeruneku+debianarm@ironflake.org> - 2019-07-28 22:50 +0200
        Re: Kernel quirks on QNAP TS-109 (Marvell orion) Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> - 2019-07-29 10:40 +0200
        Re: Kernel quirks on QNAP TS-109 (Marvell orion) Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> - 2019-07-29 14:50 +0200
          Re: Kernel quirks on QNAP TS-109 (Marvell orion) Martin Michlmayr <tbm@cyrius.com> - 2019-07-31 17:00 +0200
            Re: Kernel quirks on QNAP TS-109 (Marvell orion) Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> - 2019-08-02 11:00 +0200
              Re: Kernel quirks on QNAP TS-109 (Marvell orion) Matthieu CERDA <kegeruneku+debianarm@ironflake.org> - 2019-08-04 15:50 +0200
                Re: Kernel quirks on QNAP TS-109 (Marvell orion) Martin Michlmayr <tbm@cyrius.com> - 2019-08-04 16:00 +0200
                Bug#933294: Kernel quirks on QNAP TS-109 (Marvell orion) Martin Michlmayr <tbm@cyrius.com> - 2019-08-07 14:40 +0200
                Bug#933294: Kernel quirks on QNAP TS-109 (Marvell orion) Ian Campbell <ijc@debian.org> - 2019-08-07 15:00 +0200
              Re: Kernel quirks on QNAP TS-109 (Marvell orion) Martin Michlmayr <tbm@cyrius.com> - 2019-08-18 12:20 +0200

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