Messages in this thread | | | Date | Tue, 20 Dec 2022 13:49:14 +0100 | Subject | Re: [PATCH] soc: mediatek: mtk-svs: Enable the IRQ later | From | AngeloGioacchino Del Regno <> |
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Il 20/12/22 12:03, Roger Lu (陸瑞傑) ha scritto: > Hi Matthias Sir, > > After applying this patch, SVS probes fail as below on my MT8192 platform. If > thing isn't too late, please do not merge this patch. I'll ask Ricardo how to > reproduce this issue and give the correct solution. Thanks in advance. > > #MT8192 platform SVS probe fail log > [ 10.209430] SVSB_GPU_LOW: init02 completion timeout > [ 10.214402] mtk-svs 1100b000.svs: svs start fail: -16 > [ 10.219479] mtk-svs: probe of 1100b000.svs failed with error -16 > > Hi Ricardo, > > Could you share us how you reproduce this issue? I have MT8192 Chromebook and > can give it a try to reproduce the issue you encountered. Thanks a lot. >
Boot a kernel with Kexec to reproduce.
Regards, Angelo
> Sincerely, > Roger Lu. > > On Fri, 2022-12-16 at 13:47 +0100, Matthias Brugger wrote: >> >> On 30/11/2022 12:00, AngeloGioacchino Del Regno wrote: >>> Il 27/11/22 21:22, Ricardo Ribalda ha scritto: >>>> If the system does not come from reset (like when is booted via >>>> kexec()), the peripheral might triger an IRQ before the data structures >>>> are initialised. >>>> >>>> Fixes: >>>> >>>> [ 0.227710] Unable to handle kernel NULL pointer dereference at >>>> virtual >>>> address 0000000000000f08 >>>> [ 0.227913] Call trace: >>>> [ 0.227918] svs_isr+0x8c/0x538 >>>> >>>> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> >>> >>> Reviewed-by: AngeloGioacchino Del Regno < >>> angelogioacchino.delregno@collabora.com> >>> >>> >> >> Applied thanks! >>
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