Hi Tien, On 6 July 2018 at 02:26, <tien.fong.c...@intel.com> wrote: > From: Tien Fong Chee <tien.fong.c...@intel.com> > > Add a function to find the block device descriptor of the parent > device. > > Signed-off-by: Tien Fong Chee <tien.fong.c...@intel.com> > --- > drivers/block/blk-uclass.c | 23 +++++++++++++++++++++++ > include/blk.h | 9 +++++++++ > 2 files changed, 32 insertions(+) > > diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c > index 9e0c823..facf527 100644 > --- a/drivers/block/blk-uclass.c > +++ b/drivers/block/blk-uclass.c > @@ -132,6 +132,29 @@ struct blk_desc *blk_get_devnum_by_typename(const char > *if_typename, int devnum) > } > > /** > + * blk_get_by_device() - Get the block device descriptor for the given device > + * @dev: Instance of a storage device > + * > + * Return: With block device descriptor on success , NULL if there is no such > + * block device. > + */ > +struct blk_desc *blk_get_by_device(struct udevice *dev) > +{ > + struct udevice *child_dev, *next; > + > + device_foreach_child_safe(child_dev, next, dev) { > + if (device_get_uclass_id(child_dev) != UCLASS_BLK) > + continue; > + > + return dev_get_uclass_platdata(child_dev); > + } > + > + debug("%s: No block device found\n", __func__); > + > + return NULL; > +}
Is this different from blk_get_from_parent() ? [..] Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot