| Message ID | 20240226123627.2144961-1-Basavaraj.Natikar@amd.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | xhci: Allow RPM on the USB controller (1022:43f7) by default | expand |
On Mon, Feb 26, 2024 at 06:06:27PM +0530, Basavaraj Natikar wrote: > The AMD USB host controller (1022:43f7) does not enter PCI D3 by default > when nothing is connected. This is due to the policy introduced by > 'commit a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all > xHC 1.2 or later devices")', which only covers 1.2 or later devices. > > Therefore, by default, allow RPM on the AMD USB controller [1022:43f7]. > > Fixes: 4baf12181509 ("xhci: Loosen RPM as default policy to cover for AMD xHC 1.1") > Link: https://lore.kernel.org/all/12335218.O9o76ZdvQC@natalenko.name/ > Cc: Mario Limonciello <mario.limonciello@amd.com> > Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> > Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> > --- > drivers/usb/host/xhci-pci.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > index b534ca9752be..1eb7a41a75d7 100644 > --- a/drivers/usb/host/xhci-pci.c > +++ b/drivers/usb/host/xhci-pci.c > @@ -473,6 +473,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) > /* xHC spec requires PCI devices to support D3hot and D3cold */ > if (xhci->hci_version >= 0x120) > xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; > + else if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43f7) > + xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; > > if (xhci->quirks & XHCI_RESET_ON_RESUME) > xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, > -- > 2.25.1 > > Hi, This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him a patch that has triggered this response. He used to manually respond to these common problems, but in order to save his sanity (he kept writing the same thing over and over, yet to different people), I was created. Hopefully you will not take offence and will fix the problem in your patch and resubmit it so that it can be accepted into the Linux kernel tree. You are receiving this message because of the following common error(s) as indicated below: - You have marked a patch with a "Fixes:" tag for a commit that is in an older released kernel, yet you do not have a cc: stable line in the signed-off-by area at all, which means that the patch will not be applied to any older kernel releases. To properly fix this, please follow the documented rules in the Documentation/process/stable-kernel-rules.rst file for how to resolve this. If you wish to discuss this problem further, or you have questions about how to resolve this issue, please feel free to respond to this email and Greg will reply once he has dug out from the pending patches received from other developers. thanks, greg k-h's patch email bot
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index b534ca9752be..1eb7a41a75d7 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -473,6 +473,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) /* xHC spec requires PCI devices to support D3hot and D3cold */ if (xhci->hci_version >= 0x120) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; + else if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43f7) + xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if (xhci->quirks & XHCI_RESET_ON_RESUME) xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
The AMD USB host controller (1022:43f7) does not enter PCI D3 by default when nothing is connected. This is due to the policy introduced by 'commit a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices")', which only covers 1.2 or later devices. Therefore, by default, allow RPM on the AMD USB controller [1022:43f7]. Fixes: 4baf12181509 ("xhci: Loosen RPM as default policy to cover for AMD xHC 1.1") Link: https://lore.kernel.org/all/12335218.O9o76ZdvQC@natalenko.name/ Cc: Mario Limonciello <mario.limonciello@amd.com> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> --- drivers/usb/host/xhci-pci.c | 2 ++ 1 file changed, 2 insertions(+)