[PATCH 1/7] platform/chrome: cros_ec_typec: No pending status means attention
Stephen Boyd
swboyd at chromium.org
Mon Apr 28 16:55:27 PDT 2025
Quoting Dmitry Baryshkov (2025-04-22 06:38:17)
> On 16/04/2025 03:02, Stephen Boyd wrote:
> > If we aren't expecting a status update when
> > cros_typec_displayport_status_update() is called then we're handling an
> > attention message, like HPD high/low or IRQ. Call
> > typec_altmode_attention() in this case so that HPD signaling works in
> > the DP altmode driver.
>
> Fixes?
I didn't put a fixes because it only matters to make the displayport
altmode driver work with the typec port which isn't used so far on DT
platforms. I view it as a new feature, not a fix for an existing
feature, because we don't use the altmode driver.
It also seems like it was intentional on ACPI systems to only handle
mode entry/exit and not HPD signaling per my reading of the mailing
list.
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