From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"open list:DRM DRIVER FOR MSM ADRENO GPU"
<linux-arm-msm@vger.kernel.org>,
linux-pci@vger.kernel.org
Subject: Re: [PATCH v2 0/2] PCI: qcom: fixup PCIe support on sm8250
Date: Wed, 30 Dec 2020 18:36:18 +0530 [thread overview]
Message-ID: <20201230130618.GD5679@thinkpad> (raw)
In-Reply-To: <CAA8EJppeD-Vq643VuKrOXvHr1h6gW_U5XYKqGPcxdwGybkLv1Q@mail.gmail.com>
On Wed, Dec 30, 2020 at 03:57:54PM +0300, Dmitry Baryshkov wrote:
> On Wed, 30 Dec 2020 at 15:46, Manivannan Sadhasivam
> <manivannan.sadhasivam@linaro.org> wrote:
> >
> > On Wed, Dec 30, 2020 at 03:38:12PM +0300, Dmitry Baryshkov wrote:
> > > Hi Mani,
> > >
> > > On Wed, 30 Dec 2020 at 15:35, Manivannan Sadhasivam
> > > <manivannan.sadhasivam@linaro.org> wrote:
> > > >
> > > > On Wed, Dec 30, 2020 at 02:54:06PM +0300, Dmitry Baryshkov wrote:
> > > > > SM8250 SoC requires another clock to be up to power up the translation
> > > > > unit. Add necessary bindings and driver support.
> > > > >
> > > >
> > > > So what is the exact issue you're facing?
> > >
> > > IOMMU timeouts for PCIe0 device (WiFi)
> > >
> >
> > Strange. I never observed this issue while testing with onboard QCA6390. Is it
> > only happening on v5.11?
>
> No, I've faced it with 5.10 also. Don't remember about 5.9. Downstream
> 4.19 also has this patch.
> It well might be that on your board the firmware enables this clock.
> However to be on a safe side I think we should enable it too.
>
Okay, then please remove the optional field and make it as a required one.
Thanks,
Mani
> --
> With best wishes
> Dmitry
next prev parent reply other threads:[~2020-12-30 13:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 11:54 [PATCH v2 0/2] PCI: qcom: fixup PCIe support on sm8250 Dmitry Baryshkov
2020-12-30 11:54 ` [PATCH v2 1/2] dt-bindings: pci: qcom: Document ddrss_sf_tbu clock for sm8250 Dmitry Baryshkov
2020-12-30 11:54 ` [PATCH v2 2/2] PCI: qcom: add support for ddrss_sf_tbu clock Dmitry Baryshkov
2020-12-30 12:44 ` Manivannan Sadhasivam
2020-12-30 12:35 ` [PATCH v2 0/2] PCI: qcom: fixup PCIe support on sm8250 Manivannan Sadhasivam
2020-12-30 12:38 ` Dmitry Baryshkov
2020-12-30 12:46 ` Manivannan Sadhasivam
2020-12-30 12:57 ` Dmitry Baryshkov
2020-12-30 13:06 ` Manivannan Sadhasivam [this message]
2020-12-31 12:38 ` Dmitry Baryshkov
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