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| author | Bard Liao <yung-chuan.liao@linux.intel.com> | 2019-05-26 18:58:35 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-05-28 07:52:02 +0200 |
| commit | 5e13cf6cd64c6a4c15a4426e6f1683093a495d9a (patch) | |
| tree | 644dda75ab513b3aa84a15d64f7a2d7e4adfa0be /sound/hda/hdac_controller.c | |
| parent | ALSA: hda: move polling_mode flag to struct hdac_bus (diff) | |
| download | linux-5e13cf6cd64c6a4c15a4426e6f1683093a495d9a.tar.xz linux-5e13cf6cd64c6a4c15a4426e6f1683093a495d9a.zip | |
ALSA: hda: add polling mode in snd_hdac_bus_get_response
Polling mode is useful if a machine somehow missed an expected IRQ.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to '')
| -rw-r--r-- | sound/hda/hdac_controller.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index b2e9454f5816..a16ac31bda83 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -239,6 +239,8 @@ int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, timeout = jiffies + msecs_to_jiffies(1000); for (loopcounter = 0;; loopcounter++) { + if (bus->polling_mode) + snd_hdac_bus_update_rirb(bus); spin_lock_irq(&bus->reg_lock); if (!bus->rirb.cmds[addr]) { if (res) |