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ASoC: Intel: Skylake: Request IRQ late only after all context are initialized 

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>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Subhransu S. Prusty 2017-12-18 10:46:49 +05:30 committed by Mark Brown
parent 87684d338a
commit 8e9d8e19b3
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
5 changed files with 14 additions and 7 deletions
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2
sound/soc/intel/skylake/bxt-sst.c
View File

@ -595,7 +595,7 @@ 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);

2
sound/soc/intel/skylake/cnl-sst.c
View File

@ -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);

14
sound/soc/intel/skylake/skl-sst-dsp.c
View File

@ -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)

1
sound/soc/intel/skylake/skl-sst-dsp.h
View File

@ -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);

2
sound/soc/intel/skylake/skl-sst.c
View File

@ -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);