diff options
| author | Mugunthan V N | 2016-04-28 15:36:02 +0530 |
|---|---|---|
| committer | Joe Hershberger | 2016-05-24 11:42:02 -0500 |
| commit | 73443b9e4c451b17d1e08164ea933ee6a849b2b3 (patch) | |
| tree | 0fc80ed0bc6b1ef1d928aa61f55650a0658e9d82 /drivers/core/device.c | |
| parent | 24ae3961f811ee79e6c98474e21e07f8ce222dfc (diff) | |
drivers: core: device: add support to check dt compatible for a device/machine
Provide an api to check whether the given device or machine is
compatible with the given compat string which helps in making
decisions in drivers based on device or machine compatible.
Idea taken from Linux.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/core/device.c')
| -rw-r--r-- | drivers/core/device.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 5c2dc7021fb..45d5e3e12c0 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -721,3 +721,17 @@ int device_set_name(struct udevice *dev, const char *name) return 0; } + +bool of_device_is_compatible(struct udevice *dev, const char *compat) +{ + const void *fdt = gd->fdt_blob; + + return !fdt_node_check_compatible(fdt, dev->of_offset, compat); +} + +bool of_machine_is_compatible(const char *compat) +{ + const void *fdt = gd->fdt_blob; + + return !fdt_node_check_compatible(fdt, 0, compat); +} |