| Message ID | 1688122331-25478-4-git-send-email-quic_krichai@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | PCCI: EPC: Add support to wake up host from D3 states | expand |
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@quicinc.com> > --- > 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 >
On 7/7/2023 11:29 AM, Manivannan Sadhasivam wrote: > 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. I will change it as you suggested. > >> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> >> --- >> 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 ok - KC > >> + >> + 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 >>
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)); + + 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;
Add dstate host op for MHI EPF. Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> --- drivers/pci/endpoint/functions/pci-epf-mhi.c | 13 +++++++++++++ include/linux/mhi_ep.h | 3 +++ 2 files changed, 16 insertions(+)