Op za 29 okt. 2016 om 01:40 schreef Peter Wu <peter at lekensteyn.nl>:
> Check whether the kernel really supports power resources for a device, > otherwise the power might not be removed when the device is runtime > suspended (DSM should still work in these cases where PR does not). > > Link: https://bugs.freedesktop.org/show_bug.cgi?id=98398 > Fixes: 692a17dcc292 ("drm/nouveau/acpi: fix lockup with PCIe runtime PM") > Signed-off-by: Peter Wu <peter at lekensteyn.nl> > --- > Hi, > > Maybe Cc: stable (4.8+)? > > Compile-tested only. Rick, can you test if this patch fixes the problem > for you? > > This check was actually in the original patch, but it was changed: > https://lists.freedesktop.org/archives/nouveau/2016-May/025125.html > Re-adding the check as suggested by Mika. > > Kind regards, > Peter > --- > drivers/gpu/drm/nouveau/nouveau_acpi.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c > b/drivers/gpu/drm/nouveau/nouveau_acpi.c > index dc57b62..193573d 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c > +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c > @@ -240,7 +240,8 @@ static bool nouveau_pr3_present(struct pci_dev *pdev) > if (!parent_adev) > return false; > > - return acpi_has_method(parent_adev->handle, "_PR3"); > + return parent_adev->power.flags.power_resources && > + acpi_has_method(parent_adev->handle, "_PR3"); > } > > static void nouveau_dsm_pci_probe(struct pci_dev *pdev, acpi_handle > *dhandle_out, > -- > 2.10.1 > > Hi Peter, This patch indeed does fix the issue for me, thank you. Kind regards, Rick Tested-by: Rick Kerkhof <rick.2889 at gmail.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20161029/577c7cfb/attachment.html>
