The patch
ASoC: SOF: Intel: cnl-ipc: re-enable IPC IRQ at end of handler
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.3
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From 3f58521bc81455bdfec2a44febf25ace8988a47f Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Date: Mon, 3 Jun 2019 11:20:28 -0500 Subject: [PATCH] ASoC: SOF: Intel: cnl-ipc: re-enable IPC IRQ at end of handler
Align with Skylake driver and enable the IRQ at end of handler, instead of at beginning.
Also add an error log if we have nothing to do in this handler.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/sof/intel/cnl.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c index 4ecba1d8ec7f..b794a881542f 100644 --- a/sound/soc/sof/intel/cnl.c +++ b/sound/soc/sof/intel/cnl.c @@ -37,7 +37,7 @@ static irqreturn_t cnl_ipc_irq_thread(int irq, void *context) u32 hipctdd; u32 msg; u32 msg_ext; - irqreturn_t ret = IRQ_NONE; + bool ipc_irq = false;
hipcida = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDA); hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCCTL); @@ -45,10 +45,6 @@ static irqreturn_t cnl_ipc_irq_thread(int irq, void *context) hipctdd = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCTDD); hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR);
- /* reenable IPC interrupt */ - snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC, - HDA_DSP_ADSPIC_IPC, HDA_DSP_ADSPIC_IPC); - /* reply message from DSP */ if (hipcida & CNL_DSP_REG_HIPCIDA_DONE && hipcctl & CNL_DSP_REG_HIPCCTL_DONE) { @@ -79,7 +75,7 @@ static irqreturn_t cnl_ipc_irq_thread(int irq, void *context)
spin_unlock_irq(&sdev->ipc_lock);
- ret = IRQ_HANDLED; + ipc_irq = true; }
/* new message from DSP */ @@ -101,10 +97,22 @@ static irqreturn_t cnl_ipc_irq_thread(int irq, void *context)
cnl_ipc_host_done(sdev);
- ret = IRQ_HANDLED; + ipc_irq = true; + } + + if (!ipc_irq) { + /* + * This interrupt is not shared so no need to return IRQ_NONE. + */ + dev_err_ratelimited(sdev->dev, + "error: nothing to do in IRQ thread\n"); }
- return ret; + /* re-enable IPC interrupt */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIC, + HDA_DSP_ADSPIC_IPC, HDA_DSP_ADSPIC_IPC); + + return IRQ_HANDLED; }
static void cnl_ipc_host_done(struct snd_sof_dev *sdev)