On Fri, Jun 30, 2023 at 04:22:06PM +0530, Krishna chaitanya chundru wrote: > Add dstate host op for MHI EPF. > Use "D-state" everywhere. Also the subject should be: "PCI: epf-mhi: Add support for handling D-state notification from EPC" Fix the commit message accordingly. > Signed-off-by: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx> > --- > drivers/pci/endpoint/functions/pci-epf-mhi.c | 13 +++++++++++++ > include/linux/mhi_ep.h | 3 +++ > 2 files changed, 16 insertions(+) > > diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c > index 9c1f5a1..64ff37d 100644 > --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c > +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c > @@ -339,6 +339,18 @@ static int pci_epf_mhi_bme(struct pci_epf *epf) > return 0; > } > > +static int pci_epf_mhi_dstate_change(struct pci_epf *epf, pci_power_t state) > +{ > + struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf); > + struct mhi_ep_cntrl *mhi_cntrl = &epf_mhi->mhi_cntrl; > + struct device *dev = &epf->dev; > + > + mhi_cntrl->dstate = state; > + dev_info(dev, "D-state changeg to %s\n", pci_power_name(state)); This can be removed since we already print the state in pci driver. - Mani > + > + return 0; > +} > + > static int pci_epf_mhi_bind(struct pci_epf *epf) > { > struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf); > @@ -394,6 +406,7 @@ static struct pci_epc_event_ops pci_epf_mhi_event_ops = { > .link_up = pci_epf_mhi_link_up, > .link_down = pci_epf_mhi_link_down, > .bme = pci_epf_mhi_bme, > + .dstate_change = pci_epf_mhi_dstate_change, > }; > > static int pci_epf_mhi_probe(struct pci_epf *epf, > diff --git a/include/linux/mhi_ep.h b/include/linux/mhi_ep.h > index f198a8a..c3a0685 100644 > --- a/include/linux/mhi_ep.h > +++ b/include/linux/mhi_ep.h > @@ -8,6 +8,7 @@ > > #include <linux/dma-direction.h> > #include <linux/mhi.h> > +#include <linux/pci.h> > > #define MHI_EP_DEFAULT_MTU 0x8000 > > @@ -139,6 +140,8 @@ struct mhi_ep_cntrl { > > enum mhi_state mhi_state; > > + pci_power_t dstate; > + > u32 max_chan; > u32 mru; > u32 event_rings; > -- > 2.7.4 > -- மணிவண்ணன் சதாசிவம்