Re: [PATCH v4 5/5] PCI: qcom: Add support for configuring BDF to SID mapping for SM8250

[Rob Herring]

On Mon, Oct 05, 2020 at 03:01:52PM +0530, Manivannan Sadhasivam wrote:
> For SM8250, we need to write the BDF to SID mapping in PCIe controller
> register space for proper working. This is accomplished by extracting
> the BDF and SID values from "iommu-map" property in DT and writing those
> in the register address calculated from the hash value of BDF. In case
> of collisions, the index of the next entry will also be written.
> 
> For the sake of it, let's introduce a "config_sid" callback and do it
> conditionally for SM8250.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
>  drivers/pci/controller/dwc/Kconfig     |   1 +
>  drivers/pci/controller/dwc/pcie-qcom.c | 138 +++++++++++++++++++++++++
>  2 files changed, 139 insertions(+)

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>