linux-kernel - [PATCH v3 1/2] PCI: dwc: Add dbi_phys_addr and atu_phys_addr to struct dw

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Message-ID: <20240724022719.2868490-2-quic_pyarlaga@quicinc.com>
Date: Tue, 23 Jul 2024 19:27:18 -0700
From: Prudhvi Yarlagadda <quic_pyarlaga@...cinc.com>
To: <jingoohan1@...il.com>, <manivannan.sadhasivam@...aro.org>,
        <lpieralisi@...nel.org>, <kw@...ux.com>, <robh@...nel.org>,
        <bhelgaas@...gle.com>
CC: <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <quic_mrana@...cinc.com>,
        <quic_pyarlaga@...cinc.com>
Subject: [PATCH v3 1/2] PCI: dwc: Add dbi_phys_addr and atu_phys_addr to struct dw_pcie

Both DBI and ATU physical base addresses are needed by pcie_qcom.c
driver to program the location of DBI and ATU blocks in Qualcomm
PCIe Controller specific PARF hardware block.

Signed-off-by: Prudhvi Yarlagadda <quic_pyarlaga@...cinc.com>
Reviewed-by: Mayank Rana <quic_mrana@...cinc.com>
---
 drivers/pci/controller/dwc/pcie-designware.c | 2 ++
 drivers/pci/controller/dwc/pcie-designware.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 1b5aba1f0c92..bc3a5d6b0177 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -112,6 +112,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
 		pci->dbi_base = devm_pci_remap_cfg_resource(pci->dev, res);
 		if (IS_ERR(pci->dbi_base))
 			return PTR_ERR(pci->dbi_base);
+		pci->dbi_phys_addr = res->start;
 	}
 
 	/* DBI2 is mainly useful for the endpoint controller */
@@ -134,6 +135,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
 			pci->atu_base = devm_ioremap_resource(pci->dev, res);
 			if (IS_ERR(pci->atu_base))
 				return PTR_ERR(pci->atu_base);
+			pci->atu_phys_addr = res->start;
 		} else {
 			pci->atu_base = pci->dbi_base + DEFAULT_DBI_ATU_OFFSET;
 		}
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 53c4c8f399c8..efc72989330c 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -407,8 +407,10 @@ struct dw_pcie_ops {
 struct dw_pcie {
 	struct device		*dev;
 	void __iomem		*dbi_base;
+	phys_addr_t		dbi_phys_addr;
 	void __iomem		*dbi_base2;
 	void __iomem		*atu_base;
+	phys_addr_t		atu_phys_addr;
 	size_t			atu_size;
 	u32			num_ib_windows;
 	u32			num_ob_windows;
-- 
2.25.1