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Message-ID: <DM5PR12MB1276BA103B8EB0115D3738C0DA8B0@DM5PR12MB1276.namprd12.prod.outlook.com>
Date: Tue, 2 Jun 2020 07:11:00 +0000
From: Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>
To: Dejin Zheng <zhengdejin5@...il.com>,
"kishon@...com" <kishon@...com>,
"lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
"robh@...nel.org" <robh@...nel.org>,
"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
"shawn.guo@...aro.org" <shawn.guo@...aro.org>,
"agross@...nel.org" <agross@...nel.org>,
"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v1] PCI: dwc: convert to
devm_platform_ioremap_resource_byname()
On Thu, May 28, 2020 at 17:15:10, Dejin Zheng <zhengdejin5@...il.com>
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@...il.com>
> ---
> drivers/pci/controller/dwc/pci-dra7xx.c | 11 ++++-------
> drivers/pci/controller/dwc/pci-keystone.c | 7 +++----
> drivers/pci/controller/dwc/pcie-artpec6.c | 12 ++++--------
> .../pci/controller/dwc/pcie-designware-plat.c | 3 +--
> drivers/pci/controller/dwc/pcie-histb.c | 7 ++-----
> drivers/pci/controller/dwc/pcie-intel-gw.c | 7 ++-----
> drivers/pci/controller/dwc/pcie-kirin.c | 17 ++++++-----------
> drivers/pci/controller/dwc/pcie-qcom.c | 6 ++----
> drivers/pci/controller/dwc/pcie-uniphier.c | 3 +--
> 9 files changed, 25 insertions(+), 48 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
> index 6184ebc9392d..e5d0c7ac09b9 100644
> --- 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);
>
> @@ -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");
> if (IS_ERR(pci->dbi_base))
> return PTR_ERR(pci->dbi_base);
>
> diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
> index 790679fdfa48..5ffc3b40c4f6 100644
> --- a/drivers/pci/controller/dwc/pci-keystone.c
> +++ b/drivers/pci/controller/dwc/pci-keystone.c
> @@ -1228,8 +1228,8 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
> if (!pci)
> return -ENOMEM;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "app");
> - ks_pcie->va_app_base = devm_ioremap_resource(dev, res);
> + ks_pcie->va_app_base =
> + devm_platform_ioremap_resource_byname(pdev, "app");
> if (IS_ERR(ks_pcie->va_app_base))
> return PTR_ERR(ks_pcie->va_app_base);
>
> @@ -1323,8 +1323,7 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
> }
>
> if (pci->version >= 0x480A) {
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "atu");
> - atu_base = devm_ioremap_resource(dev, res);
> + atu_base = devm_platform_ioremap_resource_byname(pdev, "atu");
> if (IS_ERR(atu_base)) {
> ret = PTR_ERR(atu_base);
> goto err_get_sync;
> diff --git a/drivers/pci/controller/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
> index 28d5a1095200..7d2cfa288b01 100644
> --- a/drivers/pci/controller/dwc/pcie-artpec6.c
> +++ b/drivers/pci/controller/dwc/pcie-artpec6.c
> @@ -455,8 +455,7 @@ static int artpec6_add_pcie_ep(struct artpec6_pcie *artpec6_pcie,
> ep = &pci->ep;
> ep->ops = &pcie_ep_ops;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi2");
> - pci->dbi_base2 = devm_ioremap_resource(dev, res);
> + pci->dbi_base2 = devm_platform_ioremap_resource_byname(pdev, "dbi2");
> if (IS_ERR(pci->dbi_base2))
> return PTR_ERR(pci->dbi_base2);
>
> @@ -481,8 +480,6 @@ static int artpec6_pcie_probe(struct platform_device *pdev)
> struct device *dev = &pdev->dev;
> struct dw_pcie *pci;
> struct artpec6_pcie *artpec6_pcie;
> - struct resource *dbi_base;
> - struct resource *phy_base;
> int ret;
> const struct of_device_id *match;
> const struct artpec_pcie_of_data *data;
> @@ -512,13 +509,12 @@ static int artpec6_pcie_probe(struct platform_device *pdev)
> artpec6_pcie->variant = variant;
> artpec6_pcie->mode = mode;
>
> - dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
> - pci->dbi_base = devm_ioremap_resource(dev, dbi_base);
> + pci->dbi_base = devm_platform_ioremap_resource_byname(pdev, "dbi");
> if (IS_ERR(pci->dbi_base))
> return PTR_ERR(pci->dbi_base);
>
> - phy_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy");
> - artpec6_pcie->phy_base = devm_ioremap_resource(dev, phy_base);
> + artpec6_pcie->phy_base =
> + devm_platform_ioremap_resource_byname(pdev, "phy");
> if (IS_ERR(artpec6_pcie->phy_base))
> return PTR_ERR(artpec6_pcie->phy_base);
>
> diff --git a/drivers/pci/controller/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c
> index 73646b677aff..712456f6ce36 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-plat.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
> @@ -153,8 +153,7 @@ static int dw_plat_add_pcie_ep(struct dw_plat_pcie *dw_plat_pcie,
> ep = &pci->ep;
> ep->ops = &pcie_ep_ops;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi2");
> - pci->dbi_base2 = devm_ioremap_resource(dev, res);
> + pci->dbi_base2 = devm_platform_ioremap_resource_byname(pdev, "dbi2");
> if (IS_ERR(pci->dbi_base2))
> return PTR_ERR(pci->dbi_base2);
>
> diff --git a/drivers/pci/controller/dwc/pcie-histb.c b/drivers/pci/controller/dwc/pcie-histb.c
> index 811b5c6d62ea..6d3524c39a9b 100644
> --- a/drivers/pci/controller/dwc/pcie-histb.c
> +++ b/drivers/pci/controller/dwc/pcie-histb.c
> @@ -304,7 +304,6 @@ static int histb_pcie_probe(struct platform_device *pdev)
> struct histb_pcie *hipcie;
> struct dw_pcie *pci;
> struct pcie_port *pp;
> - struct resource *res;
> struct device_node *np = pdev->dev.of_node;
> struct device *dev = &pdev->dev;
> enum of_gpio_flags of_flags;
> @@ -324,15 +323,13 @@ static int histb_pcie_probe(struct platform_device *pdev)
> pci->dev = dev;
> pci->ops = &dw_pcie_ops;
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "control");
> - hipcie->ctrl = devm_ioremap_resource(dev, res);
> + hipcie->ctrl = devm_platform_ioremap_resource_byname(pdev, "control");
> if (IS_ERR(hipcie->ctrl)) {
> dev_err(dev, "cannot get control reg base\n");
> return PTR_ERR(hipcie->ctrl);
> }
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rc-dbi");
> - pci->dbi_base = devm_ioremap_resource(dev, res);
> + pci->dbi_base = devm_platform_ioremap_resource_byname(pdev, "rc-dbi");
> if (IS_ERR(pci->dbi_base)) {
> dev_err(dev, "cannot get rc-dbi base\n");
> return PTR_ERR(pci->dbi_base);
> diff --git a/drivers/pci/controller/dwc/pcie-intel-gw.c b/drivers/pci/controller/dwc/pcie-intel-gw.c
> index 2d8dbb318087..c3b3a1d162b5 100644
> --- 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");
> 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);
>
> diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
> index c19617a912bd..e5e765038686 100644
> --- a/drivers/pci/controller/dwc/pcie-kirin.c
> +++ b/drivers/pci/controller/dwc/pcie-kirin.c
> @@ -147,23 +147,18 @@ static long kirin_pcie_get_clk(struct kirin_pcie *kirin_pcie,
> static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
> struct platform_device *pdev)
> {
> - struct device *dev = &pdev->dev;
> - struct resource *apb;
> - struct resource *phy;
> - struct resource *dbi;
> -
> - apb = platform_get_resource_byname(pdev, IORESOURCE_MEM, "apb");
> - kirin_pcie->apb_base = devm_ioremap_resource(dev, apb);
> + kirin_pcie->apb_base =
> + devm_platform_ioremap_resource_byname(pdev, "apb");
> if (IS_ERR(kirin_pcie->apb_base))
> return PTR_ERR(kirin_pcie->apb_base);
>
> - phy = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy");
> - kirin_pcie->phy_base = devm_ioremap_resource(dev, phy);
> + kirin_pcie->phy_base =
> + devm_platform_ioremap_resource_byname(pdev, "phy");
> if (IS_ERR(kirin_pcie->phy_base))
> return PTR_ERR(kirin_pcie->phy_base);
>
> - dbi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
> - kirin_pcie->pci->dbi_base = devm_ioremap_resource(dev, dbi);
> + kirin_pcie->pci->dbi_base =
> + devm_platform_ioremap_resource_byname(pdev, "dbi");
> if (IS_ERR(kirin_pcie->pci->dbi_base))
> return PTR_ERR(kirin_pcie->pci->dbi_base);
>
> diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
> index 138e1a2d21cc..91e2e9086564 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom.c
> @@ -1358,8 +1358,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
> goto err_pm_runtime_put;
> }
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "parf");
> - pcie->parf = devm_ioremap_resource(dev, res);
> + pcie->parf = devm_platform_ioremap_resource_byname(pdev, "parf");
> if (IS_ERR(pcie->parf)) {
> ret = PTR_ERR(pcie->parf);
> goto err_pm_runtime_put;
> @@ -1372,8 +1371,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
> goto err_pm_runtime_put;
> }
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "elbi");
> - pcie->elbi = devm_ioremap_resource(dev, res);
> + pcie->elbi = devm_platform_ioremap_resource_byname(pdev, "elbi");
> if (IS_ERR(pcie->elbi)) {
> ret = PTR_ERR(pcie->elbi);
> goto err_pm_runtime_put;
> diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
> index a5401a0b1e58..3a7f403b57b8 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier.c
> @@ -416,8 +416,7 @@ static int uniphier_pcie_probe(struct platform_device *pdev)
> if (IS_ERR(priv->pci.dbi_base))
> return PTR_ERR(priv->pci.dbi_base);
>
> - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "link");
> - priv->base = devm_ioremap_resource(dev, res);
> + priv->base = devm_platform_ioremap_resource_byname(pdev, "link");
> if (IS_ERR(priv->base))
> return PTR_ERR(priv->base);
>
> --
> 2.25.0
Reviewed-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
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