Messages in this thread | | | Date | Mon, 31 Jan 2022 19:38:13 +0300 | Subject | Re: [PATCH] drm/bridge_connector: enable HPD by default if supported | From | Nikita Yushchenko <> |
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>> Hotplug events reported by bridge drivers over drm_bridge_hpd_notify() >> get ignored unless somebody calls drm_bridge_hpd_enable(). When the >> connector for the bridge is bridge_connector, such a call is done from >> drm_bridge_connector_enable_hpd(). >> >> However drm_bridge_connector_enable_hpd() is never called on init paths, >> documentation suggests that it is intended for suspend/resume paths. > > Hmmmm... I'm in two minds about this. The problem description is > correct, but I wonder if HPD should be enabled unconditionally here, or > if this should be left to display drivers to control. > drivers/gpu/drm/imx/dcss/dcss-kms.c enables HPD manually at init time, > other drivers don't. > > It feels like this should be under control of the display controller > driver, but I can't think of a use case for not enabling HPD at init > time. Any second opinion from anyone ?
Hi.
Can we somehow move forward here?..
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