On Mon, Mar 25, 2019 at 04:42:55PM +0100, Marc Gonzalez wrote:
> Move the device class fudge to a proper fixup function, and remove
> qcom_pcie_rd_own_conf() which has become useless.
>
> NB: dw_pcie_setup_rc() already did the right thing, but it's broken
> on older qcom chips, such as 8064.
>
> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@xxxxxxx>
> ---
> Changes from v4 to v5: Apply fixup to all qcom chips, the same way it was before
> (thus the code remains functionally equivalent)
> Drop Srinivas' Tested-by tag because of the change
> ---
> drivers/pci/controller/dwc/pcie-qcom.c | 23 ++++++-----------------
> 1 file changed, 6 insertions(+), 17 deletions(-)
Applied to pci/dwc for v5.2, thanks.
Lorenzo
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index a7f703556790..0ed235d560e3 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -1129,25 +1129,8 @@ static int qcom_pcie_host_init(struct pcie_port *pp)
> return ret;
> }
>
> -static int qcom_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
> - u32 *val)
> -{
> - struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
> -
> - /* the device class is not reported correctly from the register */
> - if (where == PCI_CLASS_REVISION && size == 4) {
> - *val = readl(pci->dbi_base + PCI_CLASS_REVISION);
> - *val &= 0xff; /* keep revision id */
> - *val |= PCI_CLASS_BRIDGE_PCI << 16;
> - return PCIBIOS_SUCCESSFUL;
> - }
> -
> - return dw_pcie_read(pci->dbi_base + where, size, val);
> -}
> -
> static const struct dw_pcie_host_ops qcom_pcie_dw_ops = {
> .host_init = qcom_pcie_host_init,
> - .rd_own_conf = qcom_pcie_rd_own_conf,
> };
>
> /* Qcom IP rev.: 2.1.0 Synopsys IP rev.: 4.01a */
> @@ -1309,6 +1292,12 @@ static const struct of_device_id qcom_pcie_match[] = {
> { }
> };
>
> +static void qcom_fixup_class(struct pci_dev *dev)
> +{
> + dev->class = PCI_CLASS_BRIDGE_PCI << 8;
> +}
> +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, PCI_ANY_ID, qcom_fixup_class);
> +
> static struct platform_driver qcom_pcie_driver = {
> .probe = qcom_pcie_probe,
> .driver = {
> --
> 2.17.1
