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ARM: 9173/1: amba: kill amba_find_match()

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There is no one use amba_find_match(), kill it.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Wang Kefeng 2021-12-18 09:30:41 +01:00 committed by Russell King (Oracle)
parent 25d490eb46
commit dacf3ca134
2 changed files with 0 additions and 62 deletions
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61
drivers/amba/bus.c
View File

@ -669,66 +669,6 @@ void amba_device_unregister(struct amba_device *dev)
device_unregister(&dev->dev); device_unregister(&dev->dev);
} }
struct find_data {
struct amba_device *dev;
struct device *parent;
const char *busid;
unsigned int id;
unsigned int mask;
};
static int amba_find_match(struct device *dev, void *data)
{
struct find_data *d = data;
struct amba_device *pcdev = to_amba_device(dev);
int r;
r = (pcdev->periphid & d->mask) == d->id;
if (d->parent)
r &= d->parent == dev->parent;
if (d->busid)
r &= strcmp(dev_name(dev), d->busid) == 0;
if (r) {
get_device(dev);
d->dev = pcdev;
}
return r;
}
/**
* amba_find_device - locate an AMBA device given a bus id
* @busid: bus id for device (or NULL)
* @parent: parent device (or NULL)
* @id: peripheral ID (or 0)
* @mask: peripheral ID mask (or 0)
*
* Return the AMBA device corresponding to the supplied parameters.
* If no device matches, returns NULL.
*
* NOTE: When a valid device is found, its refcount is
* incremented, and must be decremented before the returned
* reference.
*/
struct amba_device *
amba_find_device(const char *busid, struct device *parent, unsigned int id,
unsigned int mask)
{
struct find_data data;
data.dev = NULL;
data.parent = parent;
data.busid = busid;
data.id = id;
data.mask = mask;
bus_for_each_dev(&amba_bustype, NULL, &data, amba_find_match);
return data.dev;
}
/** /**
* amba_request_regions - request all mem regions associated with device * amba_request_regions - request all mem regions associated with device
* @dev: amba_device structure for device * @dev: amba_device structure for device
@ -768,6 +708,5 @@ EXPORT_SYMBOL(amba_driver_register);
EXPORT_SYMBOL(amba_driver_unregister); EXPORT_SYMBOL(amba_driver_unregister);
EXPORT_SYMBOL(amba_device_register); EXPORT_SYMBOL(amba_device_register);
EXPORT_SYMBOL(amba_device_unregister); EXPORT_SYMBOL(amba_device_unregister);
EXPORT_SYMBOL(amba_find_device);
EXPORT_SYMBOL(amba_request_regions); EXPORT_SYMBOL(amba_request_regions);
EXPORT_SYMBOL(amba_release_regions); EXPORT_SYMBOL(amba_release_regions);

1
include/linux/amba/bus.h
View File

@ -117,7 +117,6 @@ void amba_device_put(struct amba_device *);
int amba_device_add(struct amba_device *, struct resource *); int amba_device_add(struct amba_device *, struct resource *);
int amba_device_register(struct amba_device *, struct resource *); int amba_device_register(struct amba_device *, struct resource *);
void amba_device_unregister(struct amba_device *); void amba_device_unregister(struct amba_device *);
struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
int amba_request_regions(struct amba_device *, const char *); int amba_request_regions(struct amba_device *, const char *);
void amba_release_regions(struct amba_device *); void amba_release_regions(struct amba_device *);