linux-kernel - [PATCH 4.14 14/41] ALSA: x86: Fix runtime PM for hdmi-lpe-audio

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Message-Id: <20190326042650.745590731@linuxfoundation.org>
Date:   Tue, 26 Mar 2019 15:29:51 +0900
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chris Wilson <chris@...is-wilson.co.uk>,
        Takashi Iwai <tiwai@...e.de>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>
Subject: [PATCH 4.14 14/41] ALSA: x86: Fix runtime PM for hdmi-lpe-audio

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ville Syrjälä <ville.syrjala@...ux.intel.com>

commit 8dfb839cfe737a17def8e5f88ee13c295230364a upstream.

Commit 46e831abe864 ("drm/i915/lpe: Mark LPE audio runtime pm as
"no callbacks"") broke runtime PM with lpe audio. We can no longer
runtime suspend the GPU since the sysfs  power/control for the
lpe-audio device no longer exists and the device is considered
always active. We can fix this by not marking the device as
active.

Cc: Chris Wilson <chris@...is-wilson.co.uk>
Cc: Takashi Iwai <tiwai@...e.de>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Fixes: 46e831abe864 ("drm/i915/lpe: Mark LPE audio runtime pm as "no callbacks"")
Signed-off-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181024154825.18185-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
Acked-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/x86/intel_hdmi_audio.c |    1 -
 1 file changed, 1 deletion(-)

--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1887,7 +1887,6 @@ static int hdmi_lpe_audio_probe(struct p
 
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_mark_last_busy(&pdev->dev);
-	pm_runtime_set_active(&pdev->dev);
 
 	dev_dbg(&pdev->dev, "%s: handle pending notification\n", __func__);
 	for_each_port(card_ctx, port) {