[PATCH v5 1/5] dt-bindings: pci: qcom: Document PCIe bindings for SM8450

[Rob Herring]

On Sat, Dec 18, 2021 at 05:10:20PM +0300, Dmitry Baryshkov wrote:
> Document the PCIe DT bindings for SM8450 SoC. The PCIe IP is similar
> to the one used on SM8250, however unlike SM8250, PCIe0 and PCIe1 use
> different set of clocks, so two compatible entries are required.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---
>  .../devicetree/bindings/pci/qcom,pcie.txt     | 22 ++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> index a0ae024c2d0c..0adb56d5645e 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
> @@ -15,6 +15,8 @@
>  			- "qcom,pcie-sc8180x" for sc8180x
>  			- "qcom,pcie-sdm845" for sdm845
>  			- "qcom,pcie-sm8250" for sm8250
> +			- "qcom,pcie-sm8450-pcie0" for PCIe0 on sm8450
> +			- "qcom,pcie-sm8450-pcie1" for PCIe1 on sm8450

What's the difference between the two?

>  			- "qcom,pcie-ipq6018" for ipq6018
>  
>  - reg:
> @@ -169,6 +171,24 @@
>  			- "ddrss_sf_tbu" PCIe SF TBU clock
>  			- "pipe"	PIPE clock
>  
> +- clock-names:
> +	Usage: required for sm8450-pcie0 and sm8450-pcie1
> +	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_mux"    PIPE MUX
> +			- "phy_pipe"    PIPE output clock
> +			- "ref"         REFERENCE clock
> +			- "aggre0"	Aggre NoC PCIe0 AXI clock, only for sm8450-pcie0
> +			- "aggre1"	Aggre NoC PCIe1 AXI clock
> +
>  - resets:
>  	Usage: required
>  	Value type: <prop-encoded-array>
> @@ -246,7 +266,7 @@
>  			- "ahb"			AHB reset
>  
>  - reset-names:
> -	Usage: required for sc8180x, sdm845 and sm8250
> +	Usage: required for sc8180x, sdm845, sm8250 and sm8450
>  	Value type: <stringlist>
>  	Definition: Should contain the following entries
>  			- "pci"			PCIe core reset
> -- 
> 2.34.1
> 
>