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SubjectRe: [RFC PATCH 07/11] pci: controller: designware: Add EP mode support
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Hi,

On Friday 23 September 2016 08:11 PM, Rob Herring wrote:
> On Wed, Sep 14, 2016 at 10:42:03AM +0530, Kishon Vijay Abraham I wrote:
>> Add endpoint mode support to designware driver. This uses the
>> EP Core layer introduced recently to add endpoint mode support.
>> *Any* function driver can now use this designware device
>> to achieve the EP functionality.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>> .../devicetree/bindings/pci/designware-pcie.txt | 26 ++-
>> drivers/pci/controller/Kconfig | 5 +
>> drivers/pci/controller/Makefile | 1 +
>> drivers/pci/controller/pcie-designware-ep.c | 228 ++++++++++++++++++++
>> drivers/pci/controller/pcie-designware.c | 30 +++
>> drivers/pci/controller/pcie-designware.h | 45 ++++
>> 6 files changed, 324 insertions(+), 11 deletions(-)
>> create mode 100644 drivers/pci/controller/pcie-designware-ep.c
>>
>> diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
>> index 6c5322c..bb0b789 100644
>> --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
>> +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
>> @@ -6,23 +6,27 @@ Required properties:
>> - reg-names: Must be "config" for the PCIe configuration space.
>> (The old way of getting the configuration address space from "ranges"
>> is deprecated and should be avoided.)
>> -- #address-cells: set to <3>
>> -- #size-cells: set to <2>
>> -- device_type: set to "pci"
>> -- ranges: ranges for the PCI memory and I/O regions
>> -- #interrupt-cells: set to <1>
>> -- interrupt-map-mask and interrupt-map: standard PCI properties
>> - to define the mapping of the PCIe interface to interrupt
>> +- #address-cells (only for host mode): set to <3>
>> +- #size-cells (only for host mode): set to <2>
>> +- device_type (only for host mode): set to "pci"
>> +- ranges (only for host mode): ranges for the PCI memory and I/O regions
>> +- num-ib-windows (only for EP mode): number of inbound address translation
>> + windows
>> +- num-ob-windows (only for EP mode): number of outbound address translation
>> + windows
>> +- #interrupt-cells (only for host mode): set to <1>
>> +- interrupt-map-mask and interrupt-map (only for host mode): standard PCI
>> + properties to define the mapping of the PCIe interface to interrupt
>
> It may be clearer to just document EP mode in a separate section even if
> there's some duplication of properties. Other standard PCI binding
> properties probably also don't apply.

right, will change this accordingly.

Thanks
Kishon

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