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Message-ID: <20240229100853.GA2999@thinkpad>
Date: Thu, 29 Feb 2024 15:38:53 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Johan Hovold <johan+linaro@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
	linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/12] arm64: dts: qcom: sc8280xp: PCIe fixes and
 GICv3 ITS enable

On Wed, Feb 28, 2024 at 04:08:43PM -0600, Bjorn Helgaas wrote:
> [+to Mani]
> 
> On Fri, Feb 23, 2024 at 04:21:12PM +0100, Johan Hovold wrote:
> > This series addresses a few problems with the sc8280xp PCIe
> > implementation.
> > ...
> 
> > A recent commit enabling ASPM on certain Qualcomm platforms introduced
> > further errors when using the Wi-Fi on the X13s as well as when
> > accessing the NVMe on the CRD. The exact reason for this has not yet
> > been identified, but disabling ASPM L0s makes the errors go away. This
> > could suggest that either the current ASPM implementation is incomplete
> > or that L0s is not supported with these devices.
> > ...
> 
> > As this series fixes a regression in 6.7 (which enabled ASPM) and fixes
> > a user-reported problem with the Wi-Fi often not starting at boot, I
> > think we should merge this series for the 6.8 cycle. The final patch
> > enabling the GIC ITS should wait for 6.9.
> > 
> > The DT bindings and PCI patch are expected to go through the PCI tree,
> > while Bjorn A takes the devicetree updates through the Qualcomm tree.
> > ...
> 
> > Johan Hovold (12):
> >   dt-bindings: PCI: qcom: Allow 'required-opps'
> >   dt-bindings: PCI: qcom: Do not require 'msi-map-mask'
> >   dt-bindings: PCI: qcom: Allow 'aspm-no-l0s'
> >   PCI: qcom: Add support for disabling ASPM L0s in devicetree
> 
> The ASPM patches fix a v6.7 regression, so it would be good to fix
> that in v6.8.
> 
> Mani, if you are OK with them, I can add them to for-linus for v6.8.  
> 
> What about the 'required-opps' and 'msi-map-mask' patches?  If they're
> important, I can merge them for v6.8, too, but it's late in the cycle
> and it's not clear from the commit logs why they shouldn't wait for
> v6.9.
> 

I'm checking with Qcom HW team on the ASPM behavior. So please hold off the ASPM
related patches until I get an answer. But 'required-opps' and 'msi-map-mask'
patches can be applied for 6.9 (not strictly fixing anything in 6.8).

- Mani

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