Quoting Prasad Malisetty (2021-06-04 04:26:57) > On 2021-05-08 01:29, Stephen Boyd wrote: > > Quoting Prasad Malisetty (2021-05-07 03:17:26) > >> Document the PCIe DT bindings for SC7280 SoC.The PCIe IP is similar > >> to the one used on SM8250. Add the compatible for SC7280. > >> > >> Signed-off-by: Prasad Malisetty <pmaliset@xxxxxxxxxxxxxx> > >> --- > >> Documentation/devicetree/bindings/pci/qcom,pcie.txt | 17 > >> +++++++++++++++++ > >> 1 file changed, 17 insertions(+) > >> > >> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt > >> b/Documentation/devicetree/bindings/pci/qcom,pcie.txt > >> index 0da458a..e5245ed 100644 > >> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt > >> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt > >> @@ -12,6 +12,7 @@ > >> - "qcom,pcie-ipq4019" for ipq4019 > >> - "qcom,pcie-ipq8074" for ipq8074 > >> - "qcom,pcie-qcs404" for qcs404 > >> + - "qcom,pcie-sc7280" for sc7280 > >> - "qcom,pcie-sdm845" for sdm845 > >> - "qcom,pcie-sm8250" for sm8250 > >> > >> @@ -133,6 +134,22 @@ > >> - "slave_bus" AXI Slave clock > >> > >> - clock-names: > >> + Usage: required for sc7280 > >> + Value type: <stringlist> > >> + Definition: Should contain the following entries > >> + - "aux" Auxiliary clock > >> + - "cfg" Configuration clock > >> + - "bus_master" Master AXI clock > >> + - "bus_slave" Slave AXI clock > >> + - "slave_q2a" Slave Q2A clock > >> + - "tbu" PCIe TBU clock > >> + - "ddrss_sf_tbu" PCIe SF TBU clock > >> + - "pipe" PIPE clock > >> + - "pipe_src" PIPE MUX > > > > Is pipe_src necessary? Is it the parent of the pipe clk? If so, please > > remove it and do whatever is necessary on the pipe clk instead of the > > parent of the clk. > > Here pipe_src is MUX. Newer targets require changing pipe-clk mux to > switch between pipe_clk and XO for GDSC enable. > After PHY init, need to configure MUX. Ok. I see, so we have to change the parent of the parent of the pipe clk?
