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[v3,0/5] PCI: Add support for J7200 and AM64

Message ID 20210811123336.31357-1-kishon@ti.com
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Series PCI: Add support for J7200 and AM64 | expand

Message

Kishon Vijay Abraham I Aug. 11, 2021, 12:33 p.m. UTC
This series adds the compatible specific to J7200 and AM64 and
applies the erratas and configuration specific to them.

This series also includes Nadeem's patch that adds a quirk in
Cadence driver which is used by J7200 [1].

The DT binding for both J7200 and AM64 is already merged.

v1 of the patch series can be found at [2]
v2 of the patch series can be found at [3]

Changes from v2:
1) Drop the patch that does not request or allocate IRQs in probe for
J721E/AM654
2) Fix other minor comments given by Lorenzo

Changes from v1:
1) As suggested by Bjorn, used unsigned int :1, instead of bool for
structure members
2) Removed using unnecessary local variables and also fixed some
code alignment

[1] -> https://lore.kernel.org/r/20210528155626.21793-1-nadeem@cadence.com
[2] -> https://lore.kernel.org/r/20210706105035.9915-1-kishon@ti.com
[3] -> https://lore.kernel.org/r/20210803074932.19820-1-kishon@ti.com

Kishon Vijay Abraham I (4):
  PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
  PCI: j721e: Add PCIe support for J7200
  PCI: j721e: Add PCIe support for AM64
  misc: pci_endpoint_test: Add deviceID for AM64 and J7200

Nadeem Athani (1):
  PCI: cadence: Add quirk flag to set minimum delay in LTSSM
    Detect.Quiet state

 drivers/misc/pci_endpoint_test.c              |  8 +++
 drivers/pci/controller/cadence/pci-j721e.c    | 61 +++++++++++++++++--
 .../pci/controller/cadence/pcie-cadence-ep.c  |  4 ++
 .../controller/cadence/pcie-cadence-host.c    |  3 +
 drivers/pci/controller/cadence/pcie-cadence.c | 16 +++++
 drivers/pci/controller/cadence/pcie-cadence.h | 17 +++++-
 6 files changed, 103 insertions(+), 6 deletions(-)

Comments

Kishon Vijay Abraham I Aug. 19, 2021, 12:42 p.m. UTC | #1
Hi Lorenzo,

On 11/08/21 6:03 pm, Kishon Vijay Abraham I wrote:
> This series adds the compatible specific to J7200 and AM64 and
> applies the erratas and configuration specific to them.
> 
> This series also includes Nadeem's patch that adds a quirk in
> Cadence driver which is used by J7200 [1].
> 
> The DT binding for both J7200 and AM64 is already merged.
> 
> v1 of the patch series can be found at [2]
> v2 of the patch series can be found at [3]

Gentle ping on this series.

I've dropped "misc: pci_endpoint_test: Do not request or allocate IRQs
in probe" [A] from the previous version of the series which you had
concerns with.

[A] -> http://lore.kernel.org/r/02c1ddb7-539e-20a0-1bef-e10e76922a0e@ti.com

Thanks
Kishon

> 
> Changes from v2:
> 1) Drop the patch that does not request or allocate IRQs in probe for
> J721E/AM654
> 2) Fix other minor comments given by Lorenzo
> 
> Changes from v1:
> 1) As suggested by Bjorn, used unsigned int :1, instead of bool for
> structure members
> 2) Removed using unnecessary local variables and also fixed some
> code alignment
> 
> [1] -> https://lore.kernel.org/r/20210528155626.21793-1-nadeem@cadence.com
> [2] -> https://lore.kernel.org/r/20210706105035.9915-1-kishon@ti.com
> [3] -> https://lore.kernel.org/r/20210803074932.19820-1-kishon@ti.com
> 
> Kishon Vijay Abraham I (4):
>   PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
>   PCI: j721e: Add PCIe support for J7200
>   PCI: j721e: Add PCIe support for AM64
>   misc: pci_endpoint_test: Add deviceID for AM64 and J7200
> 
> Nadeem Athani (1):
>   PCI: cadence: Add quirk flag to set minimum delay in LTSSM
>     Detect.Quiet state
> 
>  drivers/misc/pci_endpoint_test.c              |  8 +++
>  drivers/pci/controller/cadence/pci-j721e.c    | 61 +++++++++++++++++--
>  .../pci/controller/cadence/pcie-cadence-ep.c  |  4 ++
>  .../controller/cadence/pcie-cadence-host.c    |  3 +
>  drivers/pci/controller/cadence/pcie-cadence.c | 16 +++++
>  drivers/pci/controller/cadence/pcie-cadence.h | 17 +++++-
>  6 files changed, 103 insertions(+), 6 deletions(-)
>
Lorenzo Pieralisi Aug. 19, 2021, 1:44 p.m. UTC | #2
On Thu, Aug 19, 2021 at 06:12:54PM +0530, Kishon Vijay Abraham I wrote:
> Hi Lorenzo,
> 
> On 11/08/21 6:03 pm, Kishon Vijay Abraham I wrote:
> > This series adds the compatible specific to J7200 and AM64 and
> > applies the erratas and configuration specific to them.
> > 
> > This series also includes Nadeem's patch that adds a quirk in
> > Cadence driver which is used by J7200 [1].
> > 
> > The DT binding for both J7200 and AM64 is already merged.
> > 
> > v1 of the patch series can be found at [2]
> > v2 of the patch series can be found at [3]
> 
> Gentle ping on this series.
> 
> I've dropped "misc: pci_endpoint_test: Do not request or allocate IRQs
> in probe" [A] from the previous version of the series which you had
> concerns with.
> 
> [A] -> http://lore.kernel.org/r/02c1ddb7-539e-20a0-1bef-e10e76922a0e@ti.com

Understood. The question is, how did you solve the issue that was
forcing you to have that patch in place in the updated series.

Thanks,
Lorenzo

> 
> Thanks
> Kishon
> 
> > 
> > Changes from v2:
> > 1) Drop the patch that does not request or allocate IRQs in probe for
> > J721E/AM654
> > 2) Fix other minor comments given by Lorenzo
> > 
> > Changes from v1:
> > 1) As suggested by Bjorn, used unsigned int :1, instead of bool for
> > structure members
> > 2) Removed using unnecessary local variables and also fixed some
> > code alignment
> > 
> > [1] -> https://lore.kernel.org/r/20210528155626.21793-1-nadeem@cadence.com
> > [2] -> https://lore.kernel.org/r/20210706105035.9915-1-kishon@ti.com
> > [3] -> https://lore.kernel.org/r/20210803074932.19820-1-kishon@ti.com
> > 
> > Kishon Vijay Abraham I (4):
> >   PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
> >   PCI: j721e: Add PCIe support for J7200
> >   PCI: j721e: Add PCIe support for AM64
> >   misc: pci_endpoint_test: Add deviceID for AM64 and J7200
> > 
> > Nadeem Athani (1):
> >   PCI: cadence: Add quirk flag to set minimum delay in LTSSM
> >     Detect.Quiet state
> > 
> >  drivers/misc/pci_endpoint_test.c              |  8 +++
> >  drivers/pci/controller/cadence/pci-j721e.c    | 61 +++++++++++++++++--
> >  .../pci/controller/cadence/pcie-cadence-ep.c  |  4 ++
> >  .../controller/cadence/pcie-cadence-host.c    |  3 +
> >  drivers/pci/controller/cadence/pcie-cadence.c | 16 +++++
> >  drivers/pci/controller/cadence/pcie-cadence.h | 17 +++++-
> >  6 files changed, 103 insertions(+), 6 deletions(-)
> >
Kishon Vijay Abraham I Aug. 19, 2021, 2:09 p.m. UTC | #3
Hi Lorenzo,

On 19/08/21 7:14 pm, Lorenzo Pieralisi wrote:
> On Thu, Aug 19, 2021 at 06:12:54PM +0530, Kishon Vijay Abraham I wrote:
>> Hi Lorenzo,
>>
>> On 11/08/21 6:03 pm, Kishon Vijay Abraham I wrote:
>>> This series adds the compatible specific to J7200 and AM64 and
>>> applies the erratas and configuration specific to them.
>>>
>>> This series also includes Nadeem's patch that adds a quirk in
>>> Cadence driver which is used by J7200 [1].
>>>
>>> The DT binding for both J7200 and AM64 is already merged.
>>>
>>> v1 of the patch series can be found at [2]
>>> v2 of the patch series can be found at [3]
>>
>> Gentle ping on this series.
>>
>> I've dropped "misc: pci_endpoint_test: Do not request or allocate IRQs
>> in probe" [A] from the previous version of the series which you had
>> concerns with.
>>
>> [A] -> http://lore.kernel.org/r/02c1ddb7-539e-20a0-1bef-e10e76922a0e@ti.com
> 
> Understood. The question is, how did you solve the issue that was
> forcing you to have that patch in place in the updated series.

That issue only prevents more than 5 pci-endpoint-test devices to be
tested simultaneously.

For the GIC ITS issue, I'm planning to post the workaround mentioned in
the errata document.

Errata ID #i2101 GIC: ITS Misbehavior
(https://www.ti.com/lit/er/sprz455a/sprz455a.pdf).

Also the GIC ITS issue is not present in J7200 and AM64 which this
series is planning to address. It's present only in J721E and AM65.

Thanks
Kishon

> 
> Thanks,
> Lorenzo
> 
>>
>> Thanks
>> Kishon
>>
>>>
>>> Changes from v2:
>>> 1) Drop the patch that does not request or allocate IRQs in probe for
>>> J721E/AM654
>>> 2) Fix other minor comments given by Lorenzo
>>>
>>> Changes from v1:
>>> 1) As suggested by Bjorn, used unsigned int :1, instead of bool for
>>> structure members
>>> 2) Removed using unnecessary local variables and also fixed some
>>> code alignment
>>>
>>> [1] -> https://lore.kernel.org/r/20210528155626.21793-1-nadeem@cadence.com
>>> [2] -> https://lore.kernel.org/r/20210706105035.9915-1-kishon@ti.com
>>> [3] -> https://lore.kernel.org/r/20210803074932.19820-1-kishon@ti.com
>>>
>>> Kishon Vijay Abraham I (4):
>>>   PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
>>>   PCI: j721e: Add PCIe support for J7200
>>>   PCI: j721e: Add PCIe support for AM64
>>>   misc: pci_endpoint_test: Add deviceID for AM64 and J7200
>>>
>>> Nadeem Athani (1):
>>>   PCI: cadence: Add quirk flag to set minimum delay in LTSSM
>>>     Detect.Quiet state
>>>
>>>  drivers/misc/pci_endpoint_test.c              |  8 +++
>>>  drivers/pci/controller/cadence/pci-j721e.c    | 61 +++++++++++++++++--
>>>  .../pci/controller/cadence/pcie-cadence-ep.c  |  4 ++
>>>  .../controller/cadence/pcie-cadence-host.c    |  3 +
>>>  drivers/pci/controller/cadence/pcie-cadence.c | 16 +++++
>>>  drivers/pci/controller/cadence/pcie-cadence.h | 17 +++++-
>>>  6 files changed, 103 insertions(+), 6 deletions(-)
>>>
Lorenzo Pieralisi Aug. 19, 2021, 2:38 p.m. UTC | #4
On Wed, 11 Aug 2021 18:03:31 +0530, Kishon Vijay Abraham I wrote:
> This series adds the compatible specific to J7200 and AM64 and
> applies the erratas and configuration specific to them.
> 
> This series also includes Nadeem's patch that adds a quirk in
> Cadence driver which is used by J7200 [1].
> 
> The DT binding for both J7200 and AM64 is already merged.
> 
> [...]

Applied to pci/cadence, thanks!

[1/5] PCI: cadence: Use bitfield for *quirk_retrain_flag* instead of bool
      https://git.kernel.org/lpieralisi/pci/c/f4455748b2
[2/5] PCI: cadence: Add quirk flag to set minimum delay in LTSSM Detect.Quiet state
      https://git.kernel.org/lpieralisi/pci/c/09c24094b2
[3/5] PCI: j721e: Add PCIe support for J7200
      https://git.kernel.org/lpieralisi/pci/c/f1de58802f
[4/5] PCI: j721e: Add PCIe support for AM64
      https://git.kernel.org/lpieralisi/pci/c/c8a375a8e1
[5/5] misc: pci_endpoint_test: Add deviceID for AM64 and J7200
      https://git.kernel.org/lpieralisi/pci/c/7c52009d94

Thanks,
Lorenzo