Add api for who can not get phandle from a device property.

Signed-off-by: Kever Yang kever.yang@rock-chips.com ---

drivers/core/uclass.c | 28 ++++++++++++++++++++++++++++ include/dm/uclass.h | 16 ++++++++++++++++ 2 files changed, 44 insertions(+)

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index f5e4067..dd7a89c 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -443,6 +443,34 @@ int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node, }

#if CONFIG_IS_ENABLED(OF_CONTROL) +int uclass_get_device_by_phandle_id(enum uclass_id id, int phandle_id, + struct udevice **devp) +{ + struct udevice *dev; + struct uclass *uc; + int ret; + + *devp = NULL; + ret = uclass_get(id, &uc); + if (ret) + return ret; + + ret = -ENODEV; + list_for_each_entry(dev, &uc->dev_head, uclass_node) { + uint phandle; + + phandle = dev_read_phandle(dev); + + if (phandle == phandle_id) { + *devp = dev; + ret = 0; + break; + } + } + + return uclass_get_device_tail(dev, ret, devp); +} + int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent, const char *name, struct udevice **devp) { diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 1818849..f3befe4 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -203,6 +203,22 @@ int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node, struct udevice **devp);

/** + * uclass_get_device_by_phandle_id() - Get a uclass device by phandle id + * + * This searches the devices in the uclass for one with the given phandle id. + * + * The device is probed to activate it ready for use. + * + * @id: uclass ID to look up + * @phandle_id: the phandle id to look up + * @devp: Returns pointer to device (there is only one for each node) + * @return 0 if OK, -ENODEV if there is no device match the phandle, other + * -ve on error + */ +int uclass_get_device_by_phandle_id(enum uclass_id id, int phandle_id, + struct udevice **devp) + +/** * uclass_get_device_by_phandle() - Get a uclass device by phandle * * This searches the devices in the uclass for one with the given phandle.