| Message ID | 1686752666-13426-1-git-send-email-quic_krichai@quicinc.com |
|---|---|
| Headers | show |
| Series | PCI: qcom: ep: Add basic interconnect support | expand |
On 14/06/2023 16:24, Krishna chaitanya chundru wrote: > Some platforms may not boot if a device driver doesn't > initialize the interconnect path. Mostly it is handled > by the bootloader but we have starting to see cases > where bootloader simply ignores them. > > Add the "pcie-mem" interconnect path as a required property > to the bindings. > I did not receive third patch in the series, so I hope you corrected all DTS in the linux-next (sdx55, sdx65). Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
Add basic support for managing "pcie-mem" interconnect path by setting a low constraint before enabling clocks and updating it after the link is up based on link speed and width the device got enumerated. changes from v3: - ran make DT_CHECKER_FLAGS=-m dt_binding_check and fixed errors. - Added macros in the qcom ep driver patch as suggested by Dmitry changes from v2: - changed the logic for getting speed and width as suggested by bjorn. - fixed compilation errors. Krishna chaitanya chundru (3): dt-bindings: PCI: qcom: ep: Add interconnects path arm: dts: qcom: sdx55: Add interconnect path PCI: qcom-ep: Add ICC bandwidth voting support .../devicetree/bindings/pci/qcom,pcie-ep.yaml | 13 ++++ arch/arm/boot/dts/qcom-sdx55.dtsi | 4 ++ drivers/pci/controller/dwc/pcie-qcom-ep.c | 73 ++++++++++++++++++++++ 3 files changed, 90 insertions(+)