From: Rob Herring <robh@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH 11/15] PCI: iproc: Use pci_host_probe() to register host
Date: Fri, 22 May 2020 17:48:28 -0600 [thread overview]
Message-ID: <20200522234832.954484-12-robh@kernel.org> (raw)
In-Reply-To: <20200522234832.954484-1-robh@kernel.org>
The iproc host driver does the same host registration and bus scanning
calls as pci_host_probe, so let's use it instead.
The only difference is pci_assign_unassigned_bus_resources() was called
instead of pci_bus_size_bridges() and pci_bus_assign_resources(). This
should be the same.
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Rob Herring <robh@kernel.org>
---
drivers/pci/controller/pcie-iproc.c | 18 +++++-------------
drivers/pci/controller/pcie-iproc.h | 2 --
2 files changed, 5 insertions(+), 15 deletions(-)
diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index 8c7f875acf7f..232fca0754e1 100644
--- a/drivers/pci/controller/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
@@ -1470,7 +1470,6 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
{
struct device *dev;
int ret;
- struct pci_bus *child;
struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
dev = pcie->dev;
@@ -1531,21 +1530,12 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
host->map_irq = pcie->map_irq;
host->swizzle_irq = pci_common_swizzle;
- ret = pci_scan_root_bus_bridge(host);
+ ret = pci_host_probe(host);
if (ret < 0) {
dev_err(dev, "failed to scan host: %d\n", ret);
goto err_power_off_phy;
}
- pci_assign_unassigned_bus_resources(host->bus);
-
- pcie->root_bus = host->bus;
-
- list_for_each_entry(child, &host->bus->children, node)
- pcie_bus_configure_settings(child);
-
- pci_bus_add_devices(host->bus);
-
return 0;
err_power_off_phy:
@@ -1558,8 +1548,10 @@ EXPORT_SYMBOL(iproc_pcie_setup);
int iproc_pcie_remove(struct iproc_pcie *pcie)
{
- pci_stop_root_bus(pcie->root_bus);
- pci_remove_root_bus(pcie->root_bus);
+ struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie);
+
+ pci_stop_root_bus(host->bus);
+ pci_remove_root_bus(host->bus);
iproc_pcie_msi_disable(pcie);
diff --git a/drivers/pci/controller/pcie-iproc.h b/drivers/pci/controller/pcie-iproc.h
index 4f03ea539805..c2676e442f55 100644
--- a/drivers/pci/controller/pcie-iproc.h
+++ b/drivers/pci/controller/pcie-iproc.h
@@ -54,7 +54,6 @@ struct iproc_msi;
* @reg_offsets: register offsets
* @base: PCIe host controller I/O register base
* @base_addr: PCIe host controller register base physical address
- * @root_bus: pointer to root bus
* @phy: optional PHY device that controls the Serdes
* @map_irq: function callback to map interrupts
* @ep_is_internal: indicates an internal emulated endpoint device is connected
@@ -85,7 +84,6 @@ struct iproc_pcie {
void __iomem *base;
phys_addr_t base_addr;
struct resource mem;
- struct pci_bus *root_bus;
struct phy *phy;
int (*map_irq)(const struct pci_dev *, u8, u8);
bool ep_is_internal;
--
2.25.1
next prev parent reply other threads:[~2020-05-22 23:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 23:48 [PATCH 00/15] PCI controller probe cleanups Rob Herring
2020-05-22 23:48 ` [PATCH 01/15] PCI: cadence: Use struct pci_host_bridge.windows list directly Rob Herring
2020-05-22 23:48 ` [PATCH 02/15] PCI: mvebu: " Rob Herring
2020-05-22 23:48 ` [PATCH 03/15] PCI: host-common: " Rob Herring
2020-05-22 23:48 ` [PATCH 04/15] PCI: brcmstb: Use pci_host_probe() to register host Rob Herring
2020-06-18 10:54 ` Nicolas Saenz Julienne
2020-05-22 23:48 ` [PATCH 05/15] PCI: mobiveil: " Rob Herring
2020-05-22 23:48 ` [PATCH 06/15] PCI: tegra: " Rob Herring
2020-05-22 23:48 ` [PATCH 07/15] PCI: v3: " Rob Herring
2020-05-25 11:38 ` Linus Walleij
2020-05-22 23:48 ` [PATCH 08/15] PCI: versatile: " Rob Herring
2020-05-22 23:48 ` [PATCH 09/15] PCI: xgene: " Rob Herring
2020-05-22 23:48 ` [PATCH 10/15] PCI: altera: " Rob Herring
2020-06-02 1:02 ` Tan, Ley Foon
2020-05-22 23:48 ` Rob Herring [this message]
2020-05-28 17:53 ` [PATCH 11/15] PCI: iproc: " Scott Branden
2020-05-22 23:48 ` [PATCH 12/15] PCI: rcar: " Rob Herring
2020-05-25 8:31 ` Geert Uytterhoeven
2020-05-22 23:48 ` [PATCH 13/15] PCI: rockchip: " Rob Herring
2020-05-22 23:48 ` [PATCH 14/15] PCI: xilinx-nwl: " Rob Herring
2020-05-25 6:44 ` Michal Simek
2020-05-22 23:48 ` [PATCH 15/15] PCI: xilinx: " Rob Herring
2020-05-25 6:44 ` Michal Simek
2020-07-06 9:04 ` [PATCH 00/15] PCI controller probe cleanups Lorenzo Pieralisi
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