Hello, > Even though iATU only supports synchronous read/write, the MHI stack may > call async read/write callbacks without knowing the limitations of the > controller driver. So in order to maintain compatibility, let's simulate > async read/write operation with iATU by invoking the completion callback > after memcpy. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > --- > drivers/pci/endpoint/functions/pci-epf-mhi.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c > index 34e7191f9508..7214f4da733b 100644 > --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c > +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c > @@ -234,6 +234,9 @@ static int pci_epf_mhi_iatu_read(struct mhi_ep_cntrl *mhi_cntrl, > > mutex_unlock(&epf_mhi->lock); > > + if (buf_info->cb) > + buf_info->cb(buf_info); > + > return 0; > } > > @@ -262,6 +265,9 @@ static int pci_epf_mhi_iatu_write(struct mhi_ep_cntrl *mhi_cntrl, > > mutex_unlock(&epf_mhi->lock); > > + if (buf_info->cb) > + buf_info->cb(buf_info); > + > return 0; > } Looks good! Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx> Krzysztof
