Messages in this thread | | | Date | Mon, 25 Sep 2023 13:33:51 +0300 | From | Abel Vesa <> | Subject | Re: [PATCH] PCI: qcom: Add interconnect bandwidth for PCIe Gen4 |
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On 23-09-25 10:57:47, Konrad Dybcio wrote: > On 24.09.2023 18:07, Manivannan Sadhasivam wrote: > > PCIe Gen4 supports the interconnect bandwidth of 1969 MBps. So let's add > > the bandwidth support in the driver. Otherwise, the default bandwidth of > > 985 MBps will be used. > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > --- > > drivers/pci/controller/dwc/pcie-qcom.c | 7 +++++-- > > 1 file changed, 5 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c > > index 297442c969b6..6853123f92c1 100644 > > --- a/drivers/pci/controller/dwc/pcie-qcom.c > > +++ b/drivers/pci/controller/dwc/pcie-qcom.c > > @@ -1384,11 +1384,14 @@ static void qcom_pcie_icc_update(struct qcom_pcie *pcie) > > case 2: > > bw = MBps_to_icc(500); > > break; > > + case 3: > > + bw = MBps_to_icc(985); > > + break; > > default: > > WARN_ON_ONCE(1); > > fallthrough; > > - case 3: > > - bw = MBps_to_icc(985); > > + case 4: > > + bw = MBps_to_icc(1969); > > break; > Are you adding case 4 under `default`? That looks.. bizzare..
That's intentional. You want it to use 1969MBps if there is a different gen value. AFAIU.
> > Konrad
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