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Diffstat (limited to 'arch/mips/pci/pci-rt3883.c')
-rw-r--r--arch/mips/pci/pci-rt3883.c53
1 files changed, 19 insertions, 34 deletions
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 3520e9b414e7..14454ece485d 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Ralink RT3662/RT3883 SoC PCI support
*
* Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org>
*
* Parts of this file are based on Ralink's 2.6.21 BSP
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
*/
#include <linux/types.h>
@@ -16,6 +13,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_pci.h>
@@ -103,23 +101,19 @@ static u32 rt3883_pci_read_cfg32(struct rt3883_pci_controller *rpc,
unsigned bus, unsigned slot,
unsigned func, unsigned reg)
{
- unsigned long flags;
u32 address;
- u32 ret;
address = rt3883_pci_get_cfgaddr(bus, slot, func, reg);
rt3883_pci_w32(rpc, address, RT3883_PCI_REG_CFGADDR);
- ret = rt3883_pci_r32(rpc, RT3883_PCI_REG_CFGDATA);
- return ret;
+ return rt3883_pci_r32(rpc, RT3883_PCI_REG_CFGDATA);
}
static void rt3883_pci_write_cfg32(struct rt3883_pci_controller *rpc,
unsigned bus, unsigned slot,
unsigned func, unsigned reg, u32 val)
{
- unsigned long flags;
u32 address;
address = rt3883_pci_get_cfgaddr(bus, slot, func, reg);
@@ -144,10 +138,9 @@ static void rt3883_pci_irq_handler(struct irq_desc *desc)
}
while (pending) {
- unsigned irq, bit = __ffs(pending);
+ unsigned bit = __ffs(pending);
- irq = irq_find_mapping(rpc->irq_domain, bit);
- generic_handle_irq(irq);
+ generic_handle_domain_irq(rpc->irq_domain, bit);
pending &= ~BIT(bit);
}
@@ -207,8 +200,7 @@ static int rt3883_pci_irq_init(struct device *dev,
irq = irq_of_parse_and_map(rpc->intc_of_node, 0);
if (irq == 0) {
- dev_err(dev, "%s has no IRQ",
- of_node_full_name(rpc->intc_of_node));
+ dev_err(dev, "%pOF has no IRQ", rpc->intc_of_node);
return -EINVAL;
}
@@ -216,9 +208,10 @@ static int rt3883_pci_irq_init(struct device *dev,
rt3883_pci_w32(rpc, 0, RT3883_PCI_REG_PCIENA);
rpc->irq_domain =
- irq_domain_add_linear(rpc->intc_of_node, RT3883_PCI_IRQ_COUNT,
- &rt3883_pci_irq_domain_ops,
- rpc);
+ irq_domain_create_linear(of_fwnode_handle(rpc->intc_of_node),
+ RT3883_PCI_IRQ_COUNT,
+ &rt3883_pci_irq_domain_ops,
+ rpc);
if (!rpc->irq_domain) {
dev_err(dev, "unable to add IRQ domain\n");
return -ENODEV;
@@ -233,7 +226,6 @@ static int rt3883_pci_config_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 *val)
{
struct rt3883_pci_controller *rpc;
- unsigned long flags;
u32 address;
u32 data;
@@ -267,7 +259,6 @@ static int rt3883_pci_config_write(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 val)
{
struct rt3883_pci_controller *rpc;
- unsigned long flags;
u32 address;
u32 data;
@@ -414,7 +405,6 @@ static int rt3883_pci_probe(struct platform_device *pdev)
struct rt3883_pci_controller *rpc;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
- struct resource *res;
struct device_node *child;
u32 val;
int err;
@@ -424,39 +414,35 @@ static int rt3883_pci_probe(struct platform_device *pdev)
if (!rpc)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- rpc->base = devm_ioremap_resource(dev, res);
+ rpc->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(rpc->base))
return PTR_ERR(rpc->base);
/* find the interrupt controller child node */
for_each_child_of_node(np, child) {
- if (of_get_property(child, "interrupt-controller", NULL)) {
+ if (of_property_read_bool(child, "interrupt-controller")) {
rpc->intc_of_node = child;
break;
}
}
if (!rpc->intc_of_node) {
- dev_err(dev, "%s has no %s child node",
- of_node_full_name(rpc->intc_of_node),
- "interrupt controller");
+ dev_err(dev, "%pOF has no %s child node",
+ np, "interrupt controller");
return -EINVAL;
}
/* find the PCI host bridge child node */
for_each_child_of_node(np, child) {
- if (child->type &&
- of_node_cmp(child->type, "pci") == 0) {
+ if (of_node_is_type(child, "pci")) {
rpc->pci_controller.of_node = child;
break;
}
}
if (!rpc->pci_controller.of_node) {
- dev_err(dev, "%s has no %s child node",
- of_node_full_name(rpc->intc_of_node),
- "PCI host bridge");
+ dev_err(dev, "%pOF has no %s child node",
+ np, "PCI host bridge");
err = -EINVAL;
goto err_put_intc_node;
}
@@ -465,8 +451,7 @@ static int rt3883_pci_probe(struct platform_device *pdev)
for_each_available_child_of_node(rpc->pci_controller.of_node, child) {
int devfn;
- if (!child->type ||
- of_node_cmp(child->type, "pci") != 0)
+ if (!of_node_is_type(child, "pci"))
continue;
devfn = of_pci_get_devfn(child);
@@ -565,7 +550,7 @@ err_put_intc_node:
return err;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return of_irq_parse_and_map_pci(dev, slot, pin);
}
generated by cgit (git 2.34.1) at 2025-12-25 18:16:05 +0000