drm/i915/display: log fail from intel_sdvo_enable_hotplug

Report in log if intel_sdvo_enable_hotplug failed

Signed-off-by: Juha-Pekka Heikkila <[e-mail]>
Reviewed-by: Suraj Kandpal <[e-mail]>
Signed-off-by: Mika Kahola <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/gpu/drm/i915/display/intel_sdvo.c

···
 {
 	struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
 
-	intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
-			     &intel_sdvo->hotplug_active, 2);
+	if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
+				  &intel_sdvo->hotplug_active, 2))
+		drm_warn(intel_sdvo->base.base.dev,
+			 "Failed to enable hotplug on SDVO encoder\n");
 }
 
 static enum intel_hotplug_state