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* [PATCH 1/2] ASoC: Intel: Skylake: Request IRQ late only after all context are initialized
@ 2017-12-18  5:16 Guneshwor Singh
  2017-12-18  5:16 ` [PATCH 2/2] ASoC: Intel: Skylake: Ensure dai and dailink registration happens in sequence Guneshwor Singh
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Guneshwor Singh @ 2017-12-18  5:16 UTC (permalink / raw)
  To: ALSA, Mark Brown
  Cc: Takashi Iwai, Guneshwor Singh, Patches Audio, Liam Girdwood,
	Vinod Koul, GuruprasadX, Subhransu S. Prusty, Pawse

From: "Subhransu S. Prusty" <subhransu.s.prusty@intel.com>

Sometimes during boot, panic is observed at sst_dsp_shim_read_unlocked().
This happens when interrupt occurs before the context is initialized. So
move the irq initialization only after the context is initialized
completely.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Pawse, GuruprasadX <guruprasadx.pawse@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
---
 sound/soc/intel/skylake/bxt-sst.c     |  2 +-
 sound/soc/intel/skylake/cnl-sst.c     |  2 +-
 sound/soc/intel/skylake/skl-sst-dsp.c | 14 ++++++++++----
 sound/soc/intel/skylake/skl-sst-dsp.h |  1 +
 sound/soc/intel/skylake/skl-sst.c     |  2 +-
 5 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c
index 1c78b853a7cc..13b1749fbcd5 100644
--- a/sound/soc/intel/skylake/bxt-sst.c
+++ b/sound/soc/intel/skylake/bxt-sst.c
@@ -582,7 +582,7 @@ int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 	INIT_DELAYED_WORK(&skl->d0i3.work, bxt_set_dsp_D0i3);
 	skl->d0i3.state = SKL_DSP_D0I3_NONE;
 
-	return 0;
+	return skl_dsp_acquire_irq(sst);
 }
 EXPORT_SYMBOL_GPL(bxt_sst_dsp_init);
 
diff --git a/sound/soc/intel/skylake/cnl-sst.c b/sound/soc/intel/skylake/cnl-sst.c
index 387de388ce29..245df1067ba8 100644
--- a/sound/soc/intel/skylake/cnl-sst.c
+++ b/sound/soc/intel/skylake/cnl-sst.c
@@ -458,7 +458,7 @@ int cnl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 	cnl->boot_complete = false;
 	init_waitqueue_head(&cnl->boot_wait);
 
-	return 0;
+	return skl_dsp_acquire_irq(sst);
 }
 EXPORT_SYMBOL_GPL(cnl_sst_dsp_init);
 
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c
index 19ee1d4f3bdf..71e31ad0bb3f 100644
--- a/sound/soc/intel/skylake/skl-sst-dsp.c
+++ b/sound/soc/intel/skylake/skl-sst-dsp.c
@@ -435,16 +435,22 @@ struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
 			return NULL;
 	}
 
+	return sst;
+}
+
+int skl_dsp_acquire_irq(struct sst_dsp *sst)
+{
+	struct sst_dsp_device *sst_dev = sst->sst_dev;
+	int ret;
+
 	/* Register the ISR */
 	ret = request_threaded_irq(sst->irq, sst->ops->irq_handler,
 		sst_dev->thread, IRQF_SHARED, "AudioDSP", sst);
-	if (ret) {
+	if (ret)
 		dev_err(sst->dev, "unable to grab threaded IRQ %d, disabling device\n",
 			       sst->irq);
-		return NULL;
-	}
 
-	return sst;
+	return ret;
 }
 
 void skl_dsp_free(struct sst_dsp *dsp)
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.h b/sound/soc/intel/skylake/skl-sst-dsp.h
index b8e799ed65ef..12fc9a73dc8a 100644
--- a/sound/soc/intel/skylake/skl-sst-dsp.h
+++ b/sound/soc/intel/skylake/skl-sst-dsp.h
@@ -206,6 +206,7 @@ int skl_cldma_wait_interruptible(struct sst_dsp *ctx);
 void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state);
 struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
 		struct sst_dsp_device *sst_dev, int irq);
+int skl_dsp_acquire_irq(struct sst_dsp *sst);
 bool is_skl_dsp_running(struct sst_dsp *ctx);
 
 unsigned int skl_dsp_get_enabled_cores(struct sst_dsp *ctx);
diff --git a/sound/soc/intel/skylake/skl-sst.c b/sound/soc/intel/skylake/skl-sst.c
index a436abf2fe3f..5a7e41b65ef3 100644
--- a/sound/soc/intel/skylake/skl-sst.c
+++ b/sound/soc/intel/skylake/skl-sst.c
@@ -569,7 +569,7 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 
 	sst->fw_ops = skl_fw_ops;
 
-	return 0;
+	return skl_dsp_acquire_irq(sst);
 }
 EXPORT_SYMBOL_GPL(skl_sst_dsp_init);
 
-- 
2.15.1

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2017-12-20 10:50 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-12-18  5:16 [PATCH 1/2] ASoC: Intel: Skylake: Request IRQ late only after all context are initialized Guneshwor Singh
2017-12-18  5:16 ` [PATCH 2/2] ASoC: Intel: Skylake: Ensure dai and dailink registration happens in sequence Guneshwor Singh
2017-12-20 10:50   ` Applied "ASoC: Intel: Skylake: Ensure dai and dailink registration happens in sequence." to the asoc tree Mark Brown
2017-12-20  5:28 ` [PATCH 1/2] ASoC: Intel: Skylake: Request IRQ late only after all context are initialized Vinod Koul
2017-12-20 10:50 ` Applied "ASoC: Intel: Skylake: Request IRQ late only after all context are initialized" to the asoc tree Mark Brown

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