Hi,
On Tue, Feb 4, 2025 at 7:01 AM Maxime Ripard <mripard@xxxxxxxxxx> wrote:
>
> @@ -374,12 +377,15 @@ static int __maybe_unused ti_sn65dsi86_resume(struct device *dev)
> * panel (including the aux channel) w/out any need for an input clock
> * so we can do it in resume which lets us read the EDID before
> * pre_enable(). Without a reference clock we need the MIPI reference
> * clock so reading early doesn't work.
> */
> - if (pdata->refclk)
> - ti_sn65dsi86_enable_comms(pdata);
> + if (pdata->refclk) {
> + drm_modeset_lock(&pdata->bridge.base.lock, NULL);
> + ti_sn65dsi86_enable_comms(pdata, drm_bridge_get_current_state(&pdata->bridge));
> + drm_modeset_unlock(&pdata->bridge.base.lock);
Oh. I haven't tested yet (my device is at home, but I think there is
an easy solution to my deadlock problems. Drop the modeset locks here
and just pass NULL for the state. We only end up here if
"pdata->refclk" is not NULL. Then we only use the passed state if
"pdata->refclk" _is_ NULL.
