Hi Dejin,
On Thu, May 28, 2020 at 6:18 PM Dejin Zheng <zhengdejin5@xxxxxxxxx> wrote:
> Use devm_platform_ioremap_resource_byname() to simplify codes.
> it contains platform_get_resource_byname() and devm_ioremap_resource().
>
> Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
Thanks for your patch, which is now commit 936fa5cd7b8e3e2a ("PCI: dwc:
Convert to devm_platform_ioremap_resource_byname()") in v5.9.
> --- a/drivers/pci/controller/dwc/pci-dra7xx.c
> +++ b/drivers/pci/controller/dwc/pci-dra7xx.c
> @@ -593,13 +593,12 @@ static int __init dra7xx_add_pcie_ep(struct dra7xx_pcie *dra7xx,
> ep = &pci->ep;
> ep->ops = &pcie_ep_ops;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ep_dbics");
> - pci->dbi_base = devm_ioremap_resource(dev, res);
> + pci->dbi_base = devm_platform_ioremap_resource_byname(pdev, "ep_dbics");
> if (IS_ERR(pci->dbi_base))
> return PTR_ERR(pci->dbi_base);
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ep_dbics2");
> - pci->dbi_base2 = devm_ioremap_resource(dev, res);
> + pci->dbi_base2 =
> + devm_platform_ioremap_resource_byname(pdev, "ep_dbics2");
> if (IS_ERR(pci->dbi_base2))
> return PTR_ERR(pci->dbi_base2);
The part above looks fine.
> @@ -626,7 +625,6 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
> struct dw_pcie *pci = dra7xx->pci;
> struct pcie_port *pp = &pci->pp;
> struct device *dev = pci->dev;
> - struct resource *res;
>
> pp->irq = platform_get_irq(pdev, 1);
> if (pp->irq < 0) {
> @@ -638,8 +636,7 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
> if (ret < 0)
> return ret;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rc_dbics");
> - pci->dbi_base = devm_ioremap_resource(dev, res);
> + pci->dbi_base = devm_platform_ioremap_resource_byname(pdev, "rc_dbics");
Are you sure this is equivalent?
Before, devm_ioremap_resource() was called on "dev" (= pci->dev),
after it is called on "&pdev->dev" .
> --- a/drivers/pci/controller/dwc/pcie-intel-gw.c
> +++ b/drivers/pci/controller/dwc/pcie-intel-gw.c
> @@ -253,11 +253,9 @@ static int intel_pcie_get_resources(struct platform_device *pdev)
> struct intel_pcie_port *lpp = platform_get_drvdata(pdev);
> struct dw_pcie *pci = &lpp->pci;
> struct device *dev = pci->dev;
> - struct resource *res;
> int ret;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
> - pci->dbi_base = devm_ioremap_resource(dev, res);
> + pci->dbi_base = devm_platform_ioremap_resource_byname(pdev, "dbi");
Same issue here...
> if (IS_ERR(pci->dbi_base))
> return PTR_ERR(pci->dbi_base);
>
> @@ -291,8 +289,7 @@ static int intel_pcie_get_resources(struct platform_device *pdev)
> ret = of_pci_get_max_link_speed(dev->of_node);
> lpp->link_gen = ret < 0 ? 0 : ret;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "app");
> - lpp->app_base = devm_ioremap_resource(dev, res);
> + lpp->app_base = devm_platform_ioremap_resource_byname(pdev, "app");
> if (IS_ERR(lpp->app_base))
> return PTR_ERR(lpp->app_base);
... and here.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
