Re: [PATCH] soc: qcom: pmic_glink_altmode: fix spurious DP hotplug events

[Johan Hovold <johan@kernel.org>]

On Mon, Mar 24, 2025 at 08:21:10PM +0100, Konrad Dybcio wrote:
> On 3/24/25 2:24 PM, Johan Hovold wrote:
> > The PMIC GLINK driver is currently generating DisplayPort hotplug
> > notifications whenever something is connected to (or disconnected from)
> > a port regardless of the type of notification sent by the firmware.
> 
> Yikes!
> 
> Acked-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> 
> That said, I'm hoping there isn't any sort of "port is full of water,
> emergency" messages that we should treat as "unplug" though..

Seems a bit far fetched, but I guess only you guys inside Qualcomm can
try to figure that out.

An alternative could be to cache the hpd_state regardless of the svid
and only forward changes. But perhaps the hpd_state bit is only valid
for DP notifications.

Johan