Hi, On 31 May 2018 at 02:08, <tien.fong.c...@intel.com> wrote: > From: Tien Fong Chee <tien.fong.c...@intel.com> > > Update the dma_memcpy description on return argument for DMA330 driver. > > Signed-off-by: Tien Fong Chee <tien.fong.c...@intel.com> > --- > include/dma.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/include/dma.h b/include/dma.h > index 0a0c9dd..b825c1e 100644 > --- a/include/dma.h > +++ b/include/dma.h > @@ -79,8 +79,8 @@ int dma_get_device(u32 transfer_type, struct udevice > **devp); > * @dst - destination pointer > * @src - souce pointer > * @len - data length to be copied > - * @return - on successful transfer returns no of bytes > - transferred and on failure return error code. > + * @return - on successful transfer returns no of bytes or zero(for DMA330) > + * transferred and on failure return error code.
This is a public API so you cannot change it just for one device. You can change the API for everyone if you like. But why would it want to return 0? > */ > int dma_memcpy(struct udevice *dev, void *dst, void *src, size_t len); > > -- > 2.2.0 > Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
