[PATCH 1/4] ASoC: Intel: Skylake: Reset the controller in probe

From: Guneshwor Singh <guneshwor.o.singh@intel.com>
To: alsa-devel@alsa-project.org, Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>,
	Liam Girdwood <liam.r.girdwood@linux.intel.com>,
	Vinod Koul <vinod.koul@intel.com>,
	Guneshwor Singh <guneshwor.o.singh@intel.com>,
	Patches Audio <patches.audio@intel.com>
Subject: [PATCH 1/4] ASoC: Intel: Skylake: Reset the controller in probe
Date: Fri, 28 Jul 2017 16:12:13 +0530	[thread overview]
Message-ID: <20170728104216.26859-1-guneshwor.o.singh@intel.com> (raw)

Controller can be in reset state by default. Capability structure
traversal requires the controller to be out of reset else it
results in broken capability parsing. Hence make sure that controller is
out of reset before parsing capabilities by doing a full reset.

Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
---
 sound/soc/intel/skylake/skl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 334917ee41cf..a56dfde3928c 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -702,6 +702,8 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
 		return -ENXIO;
 	}
 
+	skl_init_chip(bus, true);
+
 	snd_hdac_bus_parse_capabilities(bus);
 
 	if (skl_acquire_irq(ebus, 0) < 0)
-- 
2.13.0
