From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 15 May 2018 11:07:03 +0200
Subject: PCI: Pass struct device to of_pci_get_host_bridge_resources()
Git-commit: 055f87a2a33640923d400fd5c3ebfff24198459f
Patch-mainline: v4.18-rc1
References: fate#326572
Another step towards a managed version of
of_pci_get_host_bridge_resources(): Feed in the underlying device, rather
than just the OF node. This will allow us to use managed resource
allocation internally later on.
Tested-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
CC: Joao Pinto <Joao.Pinto@synopsys.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/pci/dwc/pcie-designware-host.c | 2 +-
drivers/pci/host/pci-aardvark.c | 5 ++---
drivers/pci/host/pci-ftpci100.c | 4 ++--
drivers/pci/host/pci-versatile.c | 3 +--
drivers/pci/host/pci-xgene.c | 3 ++-
drivers/pci/host/pcie-altera.c | 5 ++---
drivers/pci/host/pcie-iproc-platform.c | 4 ++--
drivers/pci/host/pcie-rcar.c | 5 ++---
drivers/pci/host/pcie-rockchip.c | 4 ++--
drivers/pci/host/pcie-xilinx-nwl.c | 4 ++--
drivers/pci/host/pcie-xilinx.c | 4 ++--
drivers/pci/of.c | 9 +++++----
include/linux/of_pci.h | 4 ++--
13 files changed, 27 insertions(+), 29 deletions(-)
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/dwc/pcie-designware-host.c
@@ -308,7 +308,7 @@ int dw_pcie_host_init(struct pcie_port *
if (!bridge)
return -ENOMEM;
- ret = of_pci_get_host_bridge_resources(np, 0, 0xff,
+ ret = of_pci_get_host_bridge_resources(dev, 0, 0xff,
&bridge->windows, &pp->io_base);
if (ret)
return ret;
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c
@@ -825,14 +825,13 @@ static int advk_pcie_parse_request_of_pc
{
int err, res_valid = 0;
struct device *dev = &pcie->pdev->dev;
- struct device_node *np = dev->of_node;
struct resource_entry *win, *tmp;
resource_size_t iobase;
INIT_LIST_HEAD(&pcie->resources);
- err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pcie->resources,
- &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff,
+ &pcie->resources, &iobase);
if (err)
return err;
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/host/pci-ftpci100.c
@@ -467,8 +467,8 @@ static int faraday_pci_probe(struct plat
if (IS_ERR(p->base))
return PTR_ERR(p->base);
- ret = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff,
- &res, &io_base);
+ ret = of_pci_get_host_bridge_resources(dev, 0, 0xff,
+ &res, &io_base);
if (ret)
return ret;
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -72,11 +72,10 @@ static int versatile_pci_parse_request_o
struct list_head *res)
{
int err, mem = 1, res_valid = 0;
- struct device_node *np = dev->of_node;
resource_size_t iobase;
struct resource_entry *win, *tmp;
- err = of_pci_get_host_bridge_resources(np, 0, 0xff, res, &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff, res, &iobase);
if (err)
return err;
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -661,7 +661,8 @@ static int xgene_pcie_probe_bridge(struc
if (ret)
return ret;
- ret = of_pci_get_host_bridge_resources(dn, 0, 0xff, &res, &iobase);
+ ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
+ &iobase);
if (ret)
return ret;
--- a/drivers/pci/host/pcie-altera.c
+++ b/drivers/pci/host/pcie-altera.c
@@ -499,11 +499,10 @@ static int altera_pcie_parse_request_of_
{
int err, res_valid = 0;
struct device *dev = &pcie->pdev->dev;
- struct device_node *np = dev->of_node;
struct resource_entry *win;
- err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pcie->resources,
- NULL);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff,
+ &pcie->resources, NULL);
if (err)
return err;
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -107,8 +107,8 @@ static int iproc_pcie_pltfm_probe(struct
pcie->phy = NULL;
}
- ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &resources,
- &iobase);
+ ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &resources,
+ &iobase);
if (ret) {
dev_err(dev, "unable to get PCI host bridge resources\n");
return ret;
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1088,12 +1088,11 @@ static int rcar_pcie_parse_request_of_pc
{
int err;
struct device *dev = pci->dev;
- struct device_node *np = dev->of_node;
resource_size_t iobase;
struct resource_entry *win, *tmp;
- err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pci->resources,
- &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff,
+ &pci->resources, &iobase);
if (err)
return err;
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -1399,8 +1399,8 @@ static int rockchip_pcie_probe(struct pl
if (err < 0)
goto err_vpcie;
- err = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff,
- &res, &io_base);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff,
+ &res, &io_base);
if (err)
goto err_vpcie;
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -786,7 +786,6 @@ static const struct of_device_id nwl_pci
static int nwl_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *node = dev->of_node;
struct nwl_pcie *pcie;
struct pci_bus *bus;
struct pci_bus *child;
@@ -816,7 +815,8 @@ static int nwl_pcie_probe(struct platfor
return err;
}
- err = of_pci_get_host_bridge_resources(node, 0, 0xff, &res, &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
+ &iobase);
if (err) {
dev_err(dev, "Getting bridge resources failed\n");
return err;
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -664,8 +664,8 @@ static int xilinx_pcie_probe(struct plat
return err;
}
- err = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff, &res,
- &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
+ &iobase);
if (err) {
dev_err(dev, "Getting bridge resources failed\n");
return err;
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -97,12 +97,12 @@ int pci_parse_request_of_pci_ranges(stru
struct resource **bus_range)
{
int err, res_valid = 0;
- struct device_node *np = dev->of_node;
resource_size_t iobase;
struct resource_entry *win, *tmp;
INIT_LIST_HEAD(resources);
- err = of_pci_get_host_bridge_resources(np, 0, 0xff, resources, &iobase);
+ err = of_pci_get_host_bridge_resources(dev, 0, 0xff, resources,
+ &iobase);
if (err)
return err;
@@ -300,7 +300,7 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_onl
#if defined(CONFIG_OF_ADDRESS)
/**
* of_pci_get_host_bridge_resources - Parse PCI host bridge resources from DT
- * @dev_node: device node of the host bridge having the range property
+ * @dev: host bridge device
* @busno: bus number associated with the bridge root bus
* @bus_max: maximum number of buses for this bridge
* @resources: list where the range of resources will be added after DT parsing
@@ -317,10 +317,11 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_onl
* It returns zero if the range parsing has been successful or a standard error
* value if it failed.
*/
-int of_pci_get_host_bridge_resources(struct device_node *dev_node,
+int of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
struct list_head *resources, resource_size_t *io_base)
{
+ struct device_node *dev_node = dev->of_node;
struct resource_entry *window;
struct resource *res;
struct resource *bus_range;
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -76,11 +76,11 @@ of_irq_parse_and_map_pci(const struct pc
#endif
#if defined(CONFIG_OF_ADDRESS)
-int of_pci_get_host_bridge_resources(struct device_node *dev_node,
+int of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
struct list_head *resources, resource_size_t *io_base);
#else
-static inline int of_pci_get_host_bridge_resources(struct device_node *dev_node,
+static inline int of_pci_get_host_bridge_resources(struct device *dev,
unsigned char busno, unsigned char bus_max,
struct list_head *resources, resource_size_t *io_base)
{