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SubjectRe: [PATCH v3 08/11] PCI: layerscape: Modify the MSIX to the doorbell mode
On Mon, Sep 02, 2019 at 11:17:13AM +0800, Xiaowei Bao wrote:
> dw_pcie_ep_raise_msix_irq was never called in the exisitng driver
> before, because the ls1046a platform don't support the MSIX feature
> and msix_capable was always set to false.
> Now that add the ls1088a platform with MSIX support, but the existing
> dw_pcie_ep_raise_msix_irq doesn't work, so use the doorbell method to
> support the MSIX feature.
>
> Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>

Reviewed-by: Andrew Murray <andrew.murray@arm.com>

> ---
> v2:
> - No change
> v3:
> - Modify the commit message make it clearly.
>
> drivers/pci/controller/dwc/pci-layerscape-ep.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> index 1e07287..5f0cb99 100644
> --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
> +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> @@ -79,7 +79,8 @@ static int ls_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
> case PCI_EPC_IRQ_MSI:
> return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
> case PCI_EPC_IRQ_MSIX:
> - return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);
> + return dw_pcie_ep_raise_msix_irq_doorbell(ep, func_no,
> + interrupt_num);
> default:
> dev_err(pci->dev, "UNKNOWN IRQ type\n");
> return -EINVAL;
> --
> 2.9.5
>

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