linux-kernel - Re: [PATCH v7 1/1] PCI: kirin: Add MSI support

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Message-ID: <20180711113323.GA17546@red-moon>
Date:   Wed, 11 Jul 2018 12:33:23 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Xiaowei Song <songxiaowei@...ilicon.com>
Cc:     wangbinghui@...ilicon.com, bhelgaas@...gle.com, robh+dt@...nel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        suzhuangluan@...ilicon.com, andy.shevchenko@...il.com,
        kongfei@...ilicon.com, chenyao11@...wei.com
Subject: Re: [PATCH v7 1/1] PCI: kirin: Add MSI support

On Wed, Jul 11, 2018 at 04:09:46PM +0800, Xiaowei Song wrote:
> Add support for MSI
> 
> Signed-off-by: Xiaowei Song <songxiaowei@...ilicon.com>
> Signed-off-by: Yao Chen <chenyao11@...wei.com>
> ---
>  drivers/pci/dwc/pcie-kirin.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)

Applied to pci/dwc for v4.19, thanks.

Lorenzo

> diff --git a/drivers/pci/dwc/pcie-kirin.c b/drivers/pci/dwc/pcie-kirin.c
> index d2970a009eb5..5352e0c3be82 100644
> --- a/drivers/pci/dwc/pcie-kirin.c
> +++ b/drivers/pci/dwc/pcie-kirin.c
> @@ -430,6 +430,9 @@ static int kirin_pcie_host_init(struct pcie_port *pp)
>  {
>  	kirin_pcie_establish_link(pp);
>  
> +	if (IS_ENABLED(CONFIG_PCI_MSI))
> +		dw_pcie_msi_init(pp);
> +
>  	return 0;
>  }
>  
> @@ -445,9 +448,34 @@ static const struct dw_pcie_host_ops kirin_pcie_host_ops = {
>  	.host_init = kirin_pcie_host_init,
>  };
>  
> +static int kirin_pcie_add_msi(struct dw_pcie *pci,
> +				struct platform_device *pdev)
> +{
> +	int irq;
> +
> +	if (IS_ENABLED(CONFIG_PCI_MSI)) {
> +		irq = platform_get_irq(pdev, 0);
> +		if (irq < 0) {
> +			dev_err(&pdev->dev,
> +				"failed to get MSI IRQ (%d)\n", irq);
> +			return irq;
> +		}
> +
> +		pci->pp.msi_irq = irq;
> +	}
> +
> +	return 0;
> +}
> +
>  static int __init kirin_add_pcie_port(struct dw_pcie *pci,
>  				      struct platform_device *pdev)
>  {
> +	int ret;
> +
> +	ret = kirin_pcie_add_msi(pci, pdev);
> +	if (ret)
> +		return ret;
> +
>  	pci->pp.ops = &kirin_pcie_host_ops;
>  
>  	return dw_pcie_host_init(&pci->pp);
> -- 
> 2.11.GIT
>