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Diffstat (limited to 'arch/powerpc/kernel/ibmebus.c')
-rw-r--r--arch/powerpc/kernel/ibmebus.c69
1 files changed, 39 insertions, 30 deletions
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 28581f1ad2c..1114d13ac19 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -37,15 +37,16 @@
*/
#include <linux/init.h>
+#include <linux/export.h>
#include <linux/console.h>
#include <linux/kobject.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/slab.h>
+#include <linux/stat.h>
#include <linux/of_platform.h>
#include <asm/ibmebus.h>
-#include <asm/abs_addr.h>
static struct device ibmebus_bus_device = { /* fake "parent" device */
.init_name = "ibmebus",
@@ -63,7 +64,8 @@ static struct of_device_id __initdata ibmebus_matches[] = {
static void *ibmebus_alloc_coherent(struct device *dev,
size_t size,
dma_addr_t *dma_handle,
- gfp_t flag)
+ gfp_t flag,
+ struct dma_attrs *attrs)
{
void *mem;
@@ -75,7 +77,8 @@ static void *ibmebus_alloc_coherent(struct device *dev,
static void ibmebus_free_coherent(struct device *dev,
size_t size, void *vaddr,
- dma_addr_t dma_handle)
+ dma_addr_t dma_handle,
+ struct dma_attrs *attrs)
{
kfree(vaddr);
}
@@ -125,17 +128,23 @@ static void ibmebus_unmap_sg(struct device *dev,
static int ibmebus_dma_supported(struct device *dev, u64 mask)
{
- return 1;
+ return mask == DMA_BIT_MASK(64);
+}
+
+static u64 ibmebus_dma_get_required_mask(struct device *dev)
+{
+ return DMA_BIT_MASK(64);
}
static struct dma_map_ops ibmebus_dma_ops = {
- .alloc_coherent = ibmebus_alloc_coherent,
- .free_coherent = ibmebus_free_coherent,
- .map_sg = ibmebus_map_sg,
- .unmap_sg = ibmebus_unmap_sg,
- .dma_supported = ibmebus_dma_supported,
- .map_page = ibmebus_map_page,
- .unmap_page = ibmebus_unmap_page,
+ .alloc = ibmebus_alloc_coherent,
+ .free = ibmebus_free_coherent,
+ .map_sg = ibmebus_map_sg,
+ .unmap_sg = ibmebus_unmap_sg,
+ .dma_supported = ibmebus_dma_supported,
+ .get_required_mask = ibmebus_dma_get_required_mask,
+ .map_page = ibmebus_map_page,
+ .unmap_page = ibmebus_unmap_page,
};
static int ibmebus_match_path(struct device *dev, void *data)
@@ -196,7 +205,7 @@ static int ibmebus_create_devices(const struct of_device_id *matches)
return ret;
}
-int ibmebus_register_driver(struct of_platform_driver *drv)
+int ibmebus_register_driver(struct platform_driver *drv)
{
/* If the driver uses devices that ibmebus doesn't know, add them */
ibmebus_create_devices(drv->driver.of_match_table);
@@ -206,7 +215,7 @@ int ibmebus_register_driver(struct of_platform_driver *drv)
}
EXPORT_SYMBOL(ibmebus_register_driver);
-void ibmebus_unregister_driver(struct of_platform_driver *drv)
+void ibmebus_unregister_driver(struct platform_driver *drv)
{
driver_unregister(&drv->driver);
}
@@ -283,6 +292,7 @@ out:
return rc;
return count;
}
+static BUS_ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe);
static ssize_t ibmebus_store_remove(struct bus_type *bus,
const char *buf, size_t count)
@@ -308,13 +318,14 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
return -ENODEV;
}
}
+static BUS_ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove);
-
-static struct bus_attribute ibmebus_bus_attrs[] = {
- __ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe),
- __ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove),
- __ATTR_NULL
+static struct attribute *ibmbus_bus_attrs[] = {
+ &bus_attr_probe.attr,
+ &bus_attr_remove.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(ibmbus_bus);
static int ibmebus_bus_bus_match(struct device *dev, struct device_driver *drv)
{
@@ -329,11 +340,10 @@ static int ibmebus_bus_bus_match(struct device *dev, struct device_driver *drv)
static int ibmebus_bus_device_probe(struct device *dev)
{
int error = -ENODEV;
- struct of_platform_driver *drv;
+ struct platform_driver *drv;
struct platform_device *of_dev;
- const struct of_device_id *match;
- drv = to_of_platform_driver(dev->driver);
+ drv = to_platform_driver(dev->driver);
of_dev = to_platform_device(dev);
if (!drv->probe)
@@ -341,9 +351,8 @@ static int ibmebus_bus_device_probe(struct device *dev)
of_dev_get(of_dev);
- match = of_match_device(drv->driver.of_match_table, dev);
- if (match)
- error = drv->probe(of_dev, match);
+ if (of_driver_match_device(dev, dev->driver))
+ error = drv->probe(of_dev);
if (error)
of_dev_put(of_dev);
@@ -353,7 +362,7 @@ static int ibmebus_bus_device_probe(struct device *dev)
static int ibmebus_bus_device_remove(struct device *dev)
{
struct platform_device *of_dev = to_platform_device(dev);
- struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+ struct platform_driver *drv = to_platform_driver(dev->driver);
if (dev->driver && drv->remove)
drv->remove(of_dev);
@@ -363,7 +372,7 @@ static int ibmebus_bus_device_remove(struct device *dev)
static void ibmebus_bus_device_shutdown(struct device *dev)
{
struct platform_device *of_dev = to_platform_device(dev);
- struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+ struct platform_driver *drv = to_platform_driver(dev->driver);
if (dev->driver && drv->shutdown)
drv->shutdown(of_dev);
@@ -410,7 +419,7 @@ struct device_attribute ibmebus_bus_device_attrs[] = {
static int ibmebus_bus_legacy_suspend(struct device *dev, pm_message_t mesg)
{
struct platform_device *of_dev = to_platform_device(dev);
- struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+ struct platform_driver *drv = to_platform_driver(dev->driver);
int ret = 0;
if (dev->driver && drv->suspend)
@@ -421,7 +430,7 @@ static int ibmebus_bus_legacy_suspend(struct device *dev, pm_message_t mesg)
static int ibmebus_bus_legacy_resume(struct device *dev)
{
struct platform_device *of_dev = to_platform_device(dev);
- struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
+ struct platform_driver *drv = to_platform_driver(dev->driver);
int ret = 0;
if (dev->driver && drv->resume)
@@ -705,8 +714,8 @@ static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
struct bus_type ibmebus_bus_type = {
.name = "ibmebus",
- .uevent = of_device_uevent,
- .bus_attrs = ibmebus_bus_attrs,
+ .uevent = of_device_uevent_modalias,
+ .bus_groups = ibmbus_bus_groups,
.match = ibmebus_bus_bus_match,
.probe = ibmebus_bus_device_probe,
.remove = ibmebus_bus_device_remove,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-14 03:11:34 +0000