linux/sound/pci/hda/hda_intel.h
Takashi Iwai dd23e1d566 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 37a3a98ef6 ("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 ade49db337 ("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 <tiwai@suse.de>
2019-08-27 16:37:50 +02:00

35 lines
723 B
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*/
#ifndef __SOUND_HDA_INTEL_H
#define __SOUND_HDA_INTEL_H
#include "hda_controller.h"
struct hda_intel {
struct azx chip;
/* for pending irqs */
struct work_struct irq_pending_work;
/* sync probing */
struct completion probe_wait;
struct work_struct probe_work;
/* card list (for power_save trigger) */
struct list_head list;
/* extra flags */
unsigned int irq_pending_warned:1;
unsigned int probe_continued:1;
/* vga_switcheroo setup */
unsigned int use_vga_switcheroo:1;
unsigned int vga_switcheroo_registered:1;
unsigned int init_failed:1; /* delayed init failed */
bool need_i915_power:1; /* the hda controller needs i915 power */
};
#endif