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Subject[PATCH v3 4/8] PCI: Replace dev_node parameter of of_pci_get_host_bridge_resources with device
Date
From: Jan Kiszka <jan.kiszka@siemens.com>

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 to use managed resource
allocation internally later on.

CC: Jingoo Han <jingoohan1@gmail.com>
CC: Joao Pinto <Joao.Pinto@synopsys.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.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-v3-semi.c | 3 ++-
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 ++--
14 files changed, 29 insertions(+), 30 deletions(-)

diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
index 6c409079d514..5a535690b7b5 100644
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/dwc/pcie-designware-host.c
@@ -342,7 +342,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
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;
diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
index 9abf549631b4..39d8fc2a8a76 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c
@@ -822,14 +822,13 @@ static int advk_pcie_parse_request_of_pci_ranges(struct advk_pcie *pcie)
{
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;

diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c
index 5008fd87956a..5c176f806fe5 100644
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/host/pci-ftpci100.c
@@ -476,8 +476,8 @@ static int faraday_pci_probe(struct platform_device *pdev)
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;

diff --git a/drivers/pci/host/pci-v3-semi.c b/drivers/pci/host/pci-v3-semi.c
index 0a4dea796663..f3f39935ac2f 100644
--- a/drivers/pci/host/pci-v3-semi.c
+++ b/drivers/pci/host/pci-v3-semi.c
@@ -791,7 +791,8 @@ static int v3_pci_probe(struct platform_device *pdev)
if (IS_ERR(v3->config_base))
return PTR_ERR(v3->config_base);

- ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &io_base);
+ ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res,
+ &io_base);
if (ret)
return ret;

diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index 5b3876f5312b..ef33ec0a9e1b 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -64,11 +64,10 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
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;

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 0a0d7ee6d3c9..88e9a6d315b3 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -632,7 +632,8 @@ static int xgene_pcie_probe(struct platform_device *pdev)
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;

diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c
index a6af62e0256d..61802e55a00c 100644
--- a/drivers/pci/host/pcie-altera.c
+++ b/drivers/pci/host/pcie-altera.c
@@ -488,11 +488,10 @@ static int altera_pcie_parse_request_of_pci_ranges(struct altera_pcie *pcie)
{
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;

diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
index e764a2a2693c..cec0130326c9 100644
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -99,8 +99,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
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;
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 6ab28f29ac6a..4c1787e021fd 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1067,12 +1067,11 @@ static int rcar_pcie_parse_request_of_pci_ranges(struct rcar_pcie *pci)
{
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;

diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index f1e8f97ea1fb..abac972f0dc2 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -1560,8 +1560,8 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
if (err < 0)
goto err_deinit_port;

- 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_remove_irq_domain;

diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c
index 4839ae578711..6aea997cd21b 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -825,7 +825,6 @@ static const struct of_device_id nwl_pcie_of_match[] = {
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;
@@ -855,7 +854,8 @@ static int nwl_pcie_probe(struct platform_device *pdev)
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;
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 0ad188effc09..fa5e44a480a4 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -643,8 +643,8 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
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;
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 8d4778ef5806..ac97491ba377 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -245,7 +245,7 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
#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
@@ -262,10 +262,11 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only);
* 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;
@@ -599,12 +600,12 @@ int pci_parse_request_of_pci_ranges(struct device *dev,
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;

diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 74eec1943ad2..e6684c68cb94 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -71,11 +71,11 @@ of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
#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)
{
--
2.13.6
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