Re: [PATCH v1 0/7] drm/bridge_connector: perform HPD enablement automatically

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

On 29/04/2022 21:51, Dmitry Baryshkov wrote:
>  From all the drivers using drm_bridge_connector only iMX/dcss and OMAP
> DRM driver do a proper work of calling
> drm_bridge_connector_en/disable_hpd() in right places. Rather than
> teaching each and every driver how to properly handle
> drm_bridge_connector's HPD, make that automatic.
> 
> Add two additional drm_connector helper funcs: enable_hpd() and
> disable_hpd(). Make drm_kms_helper_poll_* functions call them (as this
> is the time where the drm_bridge_connector's functions are called by the
> drivers too).

Gracious ping regarding this series. It went for two weeks w/o review.

Few additional points 'pro':
- It makes it possible to handle hpd enablement in cases where the 
driver uses a mixture of drm_bridge_connector and old connectors (msm)
- It makes it possible for other connectors to also implement dynamic 
hpd enablement/disablement in a standard way

> 
> Dmitry Baryshkov (7):
>    drm/poll-helper: merge drm_kms_helper_poll_disable() and _fini()
>    drm/probe-helper: enable and disable HPD on connectors
>    drm/bridge_connector: rely on drm_kms_helper_poll_* for HPD enablement
>    drm/imx/dcss: stop using drm_bridge_connector_en/disable_hpd()
>    drm/msm/hdmi: stop using drm_bridge_connector_en/disable_hpd()
>    drm/omap: stop using drm_bridge_connector_en/disable_hpd()
>    drm/bridge_connector: drop drm_bridge_connector_en/disable_hpd()
> 
>   drivers/gpu/drm/drm_bridge_connector.c   | 23 +++----------
>   drivers/gpu/drm/drm_probe_helper.c       | 40 ++++++++++++++++++-----
>   drivers/gpu/drm/imx/dcss/dcss-dev.c      |  4 ---
>   drivers/gpu/drm/imx/dcss/dcss-kms.c      |  4 ---
>   drivers/gpu/drm/msm/hdmi/hdmi.c          |  2 --
>   drivers/gpu/drm/omapdrm/omap_drv.c       | 41 ------------------------
>   include/drm/drm_bridge_connector.h       |  2 --
>   include/drm/drm_modeset_helper_vtables.h | 22 +++++++++++++
>   8 files changed, 58 insertions(+), 80 deletions(-)
> 


-- 
With best wishes
Dmitry