[PATCH v2 3/3] PCI: qcom: Restrict port parsing only to pci child nodes

[Manivannan Sadhasivam]

On Tue, Aug 26, 2025 at 10:48:19AM GMT, Krishna Chaitanya Chundru wrote:
> The qcom_pcie_parse_ports() function currently iterates over all available
> child nodes of the PCIe controller's device tree node. This can lead to
> attempts to parse unrelated nodes like OPP nodes, resulting in unnecessary
> errors or misconfiguration.
> 

What errors? Errors you are seeing on your setup or you envision?

> Restrict the parsing logic to only consider child nodes named "pcie" or
> "pci", which are the expected node names for PCIe ports.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru at oss.qualcomm.com>

Since this is a fix, 'Fixes' tag is needed.

> ---
>  drivers/pci/controller/dwc/pcie-qcom.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 294babe1816e4d0c2b2343fe22d89af72afcd6cd..5dbdb69fbdd1b9b78a3ebba3cd50d78168f2d595 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -1740,6 +1740,8 @@ static int qcom_pcie_parse_ports(struct qcom_pcie *pcie)
>  	int ret = -ENOENT;
>  
>  	for_each_available_child_of_node_scoped(dev->of_node, of_port) {
> +		if (!(of_node_name_eq(of_port, "pcie") || of_node_name_eq(of_port, "pci")))

May I know which platform has 'pci' as the node name for the bridge node? AFAIK,
all platforms defining bridge nodes have 'pcie' as the node name.

- Mani

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