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SubjectRe: [PATCH 0/4] Add support to defer core initialization
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On 11/18/2019 10:13 PM, Jingoo Han wrote:
>
>
> On 11/18/19, 1:55 AM, Vidya Sagar wrote:
>>
>> On 11/13/2019 2:38 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 (4):
>>> PCI: dwc: Add new feature to skip core initialization
>>> PCI: endpoint: Add notification for core init completion
>>> PCI: dwc: Add API to notify core initialization completion
>>> PCI: pci-epf-test: Add support to defer core initialization
>>>
>>> .../pci/controller/dwc/pcie-designware-ep.c | 79 +++++++-----
>>> drivers/pci/controller/dwc/pcie-designware.h | 11 ++
>>> drivers/pci/endpoint/functions/pci-epf-test.c | 114 ++++++++++++------
>>> drivers/pci/endpoint/pci-epc-core.c | 19 ++-
>>> include/linux/pci-epc.h | 2 +
>>> include/linux/pci-epf.h | 5 +
>>> 6 files changed, 164 insertions(+), 66 deletions(-)
>>>
>>
>> Hi Kishon / Gustavo / Jingoo,
>> Could you please take a look at this patch series?
>
> You need a Ack from Kishon, because he made EP code.
Hi Kishon,
Could you please find time to review this series?

- Vidya Sagar
>
>
>> - Vidya Sagar

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