Re: [PATCH V2 0/5] Add support to defer core initialization

[Vidya Sagar]

Hi Kishon,
Apologies for pinging again. Could you please review this series?

Thanks,
Vidya Sagar

On 1/11/2020 5:18 PM, Vidya Sagar wrote:
> Hi Kishon,
> Could you please review this series?
>
> Also, this series depends on the following change of yours
> http://patchwork.ozlabs.org/patch/1109884/
> Whats the plan to get this merged?
>
> Thanks,
> Vidya Sagar
>
> On 1/3/20 3:37 PM, Vidya Sagar wrote:
> > EPC/DesignWare core endpoint subsystems assume that the core registers 
> > are
> > available always for SW to initialize. But, that may not be the case 
> > always.
> > For example, Tegra194 hardware has the core running on a clock that is 
> > derived
> > from reference clock that is coming into the endpoint system from host.
> > Hence core is made available asynchronously based on when host system 
> > is going
> > for enumeration of devices. To accommodate this kind of hardwares, 
> > support is
> > required to defer the core initialization until the respective 
> > platform driver
> > informs the EPC/DWC endpoint sub-systems that the core is indeed 
> > available for
> > initiaization. This patch series is attempting to add precisely that.
> > This series is based on Kishon's patch that adds notification mechanism
> > support from EPC to EPF @ http://patchwork.ozlabs.org/patch/1109884/
> >
> > Vidya Sagar (5):
> > ÂÂ PCI: endpoint: Add core init notifying feature
> > ÂÂ PCI: dwc: Refactor core initialization code for EP mode
> > ÂÂ PCI: endpoint: Add notification for core init completion
> > ÂÂ PCI: dwc: Add API to notify core initialization completion
> > ÂÂ PCI: pci-epf-test: Add support to defer core initialization
> >
> > Â .../pci/controller/dwc/pcie-designware-ep.cÂÂ |Â 79 +++++++-----
> >  drivers/pci/controller/dwc/pcie-designware.h | 11 ++
> > Â drivers/pci/endpoint/functions/pci-epf-test.c | 118 ++++++++++++------
> > Â drivers/pci/endpoint/pci-epc-core.cÂÂÂÂÂÂÂÂÂÂ |Â 19 ++-
> > Â include/linux/pci-epc.hÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ |ÂÂ 2 +
> > Â include/linux/pci-epf.hÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ |ÂÂ 5 +
> > Â 6 files changed, 164 insertions(+), 70 deletions(-)