Op za 29 okt. 2016 om 01:40 schreef Peter Wu peter@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@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@gmail.com