From dd23e1d566d0f74aa3b68ab3237927bb15f0e644 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 27 Aug 2019 16:37:50 +0200 Subject: ALSA: hda - Allow runtime PM for controller if component notifier is used Currently we disallow the runtime PM of the HD-audio controller if it's bound with HDMI/DP on Nvidia / AMD unless it's for dGPU. This is for keeping the link up to get the proper notification for ELD hotplug. As explained in the commit 37a3a98ef601 ("ALSA: hda - Enable runtime PM only for discrete GPU"), this keep-power-up behavior is rather a stop-gap solution until the ELD notification via audio component. And now we finally got the audio component for these graphics drivers via commit ade49db337a9 ("ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI"), so it's time to change. This patch makes HD-audio controller again runtime-suspendable when the device gets bound with audio component in HDMI codec driver. For making it easier to access from the codec driver, move the flag into the common hda_bus object instead of hda_intel flag. Also rename it to keep_power, to indicate the actual meaning. Signed-off-by: Takashi Iwai --- include/sound/hda_codec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/sound') diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 871993696c5f..9a0393cf024c 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -59,6 +59,7 @@ struct hda_bus { unsigned int in_reset:1; /* during reset operation */ unsigned int no_response_fallback:1; /* don't fallback at RIRB error */ unsigned int bus_probing :1; /* during probing process */ + unsigned int keep_power:1; /* keep power up for notification */ int primary_dig_out_type; /* primary digital out PCM type */ unsigned int mixer_assigned; /* codec addr for mixer name */ -- cgit v1.2.3