Re: [PATCH v4 0/3] phy: cadence: j721e-wiz: Add Type-C plug flip support

[Roger Quadros]

Hi Kishon,

On 28/10/2019 12:21, Roger Quadros wrote:
> Hi,
>
> On J721e platform, the 2 lanes of SERDES PHY are used to achieve
> USB Type-C plug flip support without any additional MUX component
> by using a lane swap feature.
>
> However, the driver needs to know the Type-C plug orientation before
> it can decide whether to swap the lanes or not. This is achieved via a
> GPIO named DIR.
>
> Another constraint is that the lane swap must happen only when the PHY
> is in inactive state. This is achieved by sampling the GPIO and
> programming the lane swap before bringing the PHY out of reset.
>
> This series adds support to read the GPIO and accordingly program
> the Lane swap for Type-C plug flip support.
>
> Series must be applied on top of
> https://lkml.org/lkml/2019/10/23/589

I just tested this on top of Sierra PHY patches v3
https://lkml.org/lkml/2019/11/28/186
on v5.5-rc1

USB3 works fine on J7ES.

Please queue this along with the Sierra PHY patches for -next. Thanks.

cheers,
-roger

> cheers,
> -roger
>
> Changelog:
> v4
> - fixes in dt-binding document
>    - fix typo
>    - change to typec-dir-debounce-ms and add min/max/default values
>    - drop reference to uint32 type
> - fixes in driver
>    - change to updated typec-dir-debounce-ms property
>    - add limit checks and use default value if not specified
>
> v3
> - Rebase on v2 of PHY series and update DT binding to yaml
>
> v2
> - revise commit log of patch 1
> - use regmap_field in patch 3
>
> Roger Quadros (3):
>    phy: cadence: Sierra: add phy_reset hook
>    dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C dir GPIO
>    phy: ti: j721e-wiz: Manage typec-gpio-dir
>
>   .../bindings/phy/ti,phy-j721e-wiz.yaml        | 17 ++++++
>   drivers/phy/cadence/phy-cadence-sierra.c      | 10 +++
>   drivers/phy/ti/phy-j721e-wiz.c                | 61 +++++++++++++++++++
>   3 files changed, 88 insertions(+)

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