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Message-ID: <c498f5b9-df07-0802-800c-67c18dcf3e67@gmail.com>
Date: Fri, 19 Apr 2024 14:47:46 -0500
From: mr.nuke.me@...il.com
To: Kathiravan Thirumoorthy <quic_kathirav@...cinc.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>, Bjorn Helgaas <bhelgaas@...gle.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
<conor+dt@...nel.org>, Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Michael Turquette <mturquette@...libre.com>, Stephen Boyd
<sboyd@...nel.org>, Manivannan Sadhasivam
<manivannan.sadhasivam@...aro.org>, linux-arm-msm@...r.kernel.org,
linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
linux-clk@...r.kernel.org
Subject: Re: [PATCH v3 0/7] ipq9574: Enable PCI-Express support
Hi Kathiravan,
On 4/19/24 09:28, Kathiravan Thirumoorthy wrote:
>
>
> On 4/15/2024 11:50 PM, Alexandru Gagniuc wrote:
>> There are four PCIe ports on IPQ9574, pcie0 thru pcie3. This series
>> addresses pcie2, which is a gen3x2 port. The board I have only uses
>> pcie2, and that's the only one enabled in this series.
>>
>> I believe this makes sense as a monolithic series, as the individual
>> pieces are not that useful by themselves.
>>
>> In v2, I've had some issues regarding the dt schema checks. For
>> transparency, I used the following test invocations to test v3:
>>
>> make dt_binding_check
>> DT_SCHEMA_FILES=qcom,pcie.yaml:qcom,ipq8074-qmp-pcie-phy.yaml
>> make dtbs_check
>> DT_SCHEMA_FILES=qcom,pcie.yaml:qcom,ipq8074-qmp-pcie-phy.yaml
>>
>>
>
> Alexandru,
>
> Thanks for your contributions to the Qualcomm IPQ chipsets.
>
> I would like to inform you that we have also submitted the patches to
> enable the PCIe support on IPQ9574[1][2] and waiting for the ICC
> support[3] to land to enable the NOC clocks.
>
> [1]
> https://lore.kernel.org/linux-arm-msm/20230519090219.15925-1-quic_devipriy@quicinc.com/
> [2]
> https://lore.kernel.org/linux-arm-msm/20230519085723.15601-1-quic_devipriy@quicinc.com/
> [3]
> https://lore.kernel.org/linux-arm-msm/20240418092305.2337429-1-quic_varada@quicinc.com/
>
> Please take a look at these patches as well.
I think I've seen [1] before -- I thought the series was abandoned.
Since we have the dt-schema and applicability on mainline resolved here,
do you want to use this series as the base for any new PCIe work?
Alex
> Thanks,
> Kathiravan T.
>
>
>> Changes since v2:
>> - reworked resets in qcom,pcie.yaml to resolve dt schema errors
>> - constrained "reg" in qcom,pcie.yaml
>> - reworked min/max intems in qcom,ipq8074-qmp-pcie-phy.yaml
>> - dropped msi-parent for pcie node, as it is handled by "msi" IRQ
>>
>> Changes since v1:
>> - updated new tables in phy-qcom-qmp-pcie.c to use lowercase hex
>> numbers
>> - reorganized qcom,ipq8074-qmp-pcie-phy.yaml to use a single list of
>> clocks
>> - reorganized qcom,pcie.yaml to include clocks+resets per compatible
>> - Renamed "pcie2_qmp_phy" label to "pcie2_phy"
>> - moved "ranges" property of pcie@...00000 higher up
>>
>> Alexandru Gagniuc (7):
>> dt-bindings: clock: Add PCIe pipe related clocks for IPQ9574
>> clk: qcom: gcc-ipq9574: Add PCIe pipe clocks
>> dt-bindings: PCI: qcom: Add IPQ9574 PCIe controller
>> PCI: qcom: Add support for IPQ9574
>> dt-bindings: phy: qcom,ipq8074-qmp-pcie: add ipq9574 gen3x2 PHY
>> phy: qcom-qmp-pcie: add support for ipq9574 gen3x2 PHY
>> arm64: dts: qcom: ipq9574: add PCIe2 nodes
>>
>> .../devicetree/bindings/pci/qcom,pcie.yaml | 35 +++++
>> .../phy/qcom,ipq8074-qmp-pcie-phy.yaml | 36 ++++-
>> arch/arm64/boot/dts/qcom/ipq9574.dtsi | 93 +++++++++++-
>> drivers/clk/qcom/gcc-ipq9574.c | 76 ++++++++++
>> drivers/pci/controller/dwc/pcie-qcom.c | 13 +-
>> drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 136 +++++++++++++++++-
>> .../phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5.h | 14 ++
>> include/dt-bindings/clock/qcom,ipq9574-gcc.h | 4 +
>> 8 files changed, 400 insertions(+), 7 deletions(-)
>>
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