drm/panel-samsung-atna33xc20: Extend autosuspend delay

Avoid the panel oscillating on and off during boot. In some cases it
will be more than 1000ms between powering the panel to read the EDID early
during boot, and enabling the panel for display. Extending the
autosuspend delay avoids autosuspending during this interval.

Signed-off-by: Drew Davenport <ddavenport@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221117133655.5.I96ce2a565ff893eddcbee70174c991179311a3ae@changeid

diff --git a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
index f4616f0..5703f47 100644 (file)
--- a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
+++ b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
@@ -310,7 +310,7 @@ static int atana33xc20_probe(struct dp_aux_ep_device *aux_ep)
        ret = devm_add_action_or_reset(dev,  atana33xc20_runtime_disable, dev);
        if (ret)
                return ret;
-       pm_runtime_set_autosuspend_delay(dev, 1000);
+       pm_runtime_set_autosuspend_delay(dev, 2000);
        pm_runtime_use_autosuspend(dev);
        ret = devm_add_action_or_reset(dev,  atana33xc20_dont_use_autosuspend, dev);
        if (ret)