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| author | Takashi Iwai <tiwai@suse.de> | 2017-02-21 22:18:57 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-02-21 22:23:14 +0100 |
| commit | 0b6b524f3915f88eb4562e8d927528224a8eab41 (patch) | |
| tree | a1802ed785fafbddf1dcf61b1260f80b1a256156 /sound/x86 | |
| parent | ALSA: x86: Use runtime PM autosuspend (diff) | |
| download | linux-0b6b524f3915f88eb4562e8d927528224a8eab41.tar.xz linux-0b6b524f3915f88eb4562e8d927528224a8eab41.zip | |
ALSA: x86: Don't enable runtime PM as default
Unlike HSW and newer, BYT/CHT devices have no fine control of audio
power domain in i915 side. Since there is little gain by runtime PM
on BYT/CHT, so far, this commit removes the pm_runtime_enable() call
as default.
User who still wants the runtime PM may adjust the corresponding
sysfs files (power/control and power/autosuspend_delay_ms)
appropriately, of course.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/x86')
| -rw-r--r-- | sound/x86/intel_hdmi_audio.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index d1504303adfb..c505b019e09c 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1809,11 +1809,13 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) pdata->notify_pending = false; spin_unlock_irq(&pdata->lpe_audio_slock); + /* runtime PM isn't enabled as default, since it won't save much on + * BYT/CHT devices; user who want the runtime PM should adjust the + * power/ontrol and power/autosuspend_delay_ms sysfs entries instead + */ pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_mark_last_busy(&pdev->dev); - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); dev_dbg(&pdev->dev, "%s: handle pending notification\n", __func__); schedule_work(&ctx->hdmi_audio_wq); |