From a0fd361db8e508b8ce71c284b5ae3961759a0b3b Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 5 Nov 2020 15:11:46 -0600 Subject: PCI: dwc: Move "dbi", "dbi2", and "addr_space" resource setup into common code Most DWC drivers use the common register resource names "dbi", "dbi2", and "addr_space", so let's move their setup into the DWC common code. This means 'dbi_base' in particular is setup later, but it looks like no drivers touch DBI registers before dw_pcie_host_init or dw_pcie_ep_init. Link: https://lore.kernel.org/r/20201105211159.1814485-4-robh@kernel.org Tested-by: Marek Szyprowski Signed-off-by: Rob Herring Signed-off-by: Lorenzo Pieralisi Acked-by: Jingoo Han Cc: Kishon Vijay Abraham I Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Murali Karicheri Cc: Minghuan Lian Cc: Mingkai Hu Cc: Roy Zang Cc: Jonathan Chocron Cc: Jesper Nilsson Cc: Gustavo Pimentel Cc: Xiaowei Song Cc: Binghui Wang Cc: Andy Gross Cc: Bjorn Andersson Cc: Stanimir Varbanov Cc: Pratyush Anand Cc: Thierry Reding Cc: Jonathan Hunter Cc: Kunihiko Hayashi Cc: Masahiro Yamada Cc: linux-omap@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arm-kernel@axis.com Cc: linux-arm-msm@vger.kernel.org Cc: linux-tegra@vger.kernel.org --- drivers/pci/controller/dwc/pcie-uniphier-ep.c | 38 ++------------------------- 1 file changed, 2 insertions(+), 36 deletions(-) (limited to 'drivers/pci/controller/dwc/pcie-uniphier-ep.c') diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c index 148355960061..69810c6b0d58 100644 --- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c +++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c @@ -218,35 +218,6 @@ static const struct dw_pcie_ep_ops uniphier_pcie_ep_ops = { .get_features = uniphier_pcie_get_features, }; -static int uniphier_add_pcie_ep(struct uniphier_pcie_ep_priv *priv, - struct platform_device *pdev) -{ - struct dw_pcie *pci = &priv->pci; - struct dw_pcie_ep *ep = &pci->ep; - struct device *dev = &pdev->dev; - struct resource *res; - int ret; - - ep->ops = &uniphier_pcie_ep_ops; - - pci->dbi_base2 = devm_platform_ioremap_resource_byname(pdev, "dbi2"); - if (IS_ERR(pci->dbi_base2)) - return PTR_ERR(pci->dbi_base2); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "addr_space"); - if (!res) - return -EINVAL; - - ep->phys_base = res->start; - ep->addr_size = resource_size(res); - - ret = dw_pcie_ep_init(ep); - if (ret) - dev_err(dev, "Failed to initialize endpoint (%d)\n", ret); - - return ret; -} - static int uniphier_pcie_ep_enable(struct uniphier_pcie_ep_priv *priv) { int ret; @@ -300,7 +271,6 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct uniphier_pcie_ep_priv *priv; - struct resource *res; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -314,11 +284,6 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev) priv->pci.dev = dev; priv->pci.ops = &dw_pcie_ops; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi"); - priv->pci.dbi_base = devm_pci_remap_cfg_resource(dev, res); - if (IS_ERR(priv->pci.dbi_base)) - return PTR_ERR(priv->pci.dbi_base); - priv->base = devm_platform_ioremap_resource_byname(pdev, "link"); if (IS_ERR(priv->base)) return PTR_ERR(priv->base); @@ -352,7 +317,8 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev) if (ret) return ret; - return uniphier_add_pcie_ep(priv, pdev); + priv->pci.ep.ops = &uniphier_pcie_ep_ops; + return dw_pcie_ep_init(&priv->pci.ep); } static const struct pci_epc_features uniphier_pro5_data = { -- cgit v1.2.3