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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2014-12-30 16:10:32 +0200
committerMark Brown <broonie@kernel.org>2014-12-30 16:44:11 +0000
commit5a1b8a80daa15e5b1920735133b80dd46975765f (patch)
tree4d8b61f14f8ab2a6d64a354c2acdb7a35499dcdb /sound/soc/davinci
parent97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff)
downloadop-kernel-dev-5a1b8a80daa15e5b1920735133b80dd46975765f.zip
op-kernel-dev-5a1b8a80daa15e5b1920735133b80dd46975765f.tar.gz
ASoC: davinci-mcasp: Support for combined tx/rx interrupt line
Some SoC, like da850/OMAP-L138 uses one common interrupt request for TX/RX events. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/davinci')
-rw-r--r--sound/soc/davinci/davinci-mcasp.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 30b94d4..95eef58 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -364,6 +364,20 @@ static irqreturn_t davinci_mcasp_rx_irq_handler(int irq, void *data)
return IRQ_RETVAL(handled_mask);
}
+static irqreturn_t davinci_mcasp_common_irq_handler(int irq, void *data)
+{
+ struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data;
+ irqreturn_t ret = IRQ_NONE;
+
+ if (mcasp->substreams[SNDRV_PCM_STREAM_PLAYBACK])
+ ret = davinci_mcasp_tx_irq_handler(irq, data);
+
+ if (mcasp->substreams[SNDRV_PCM_STREAM_CAPTURE])
+ ret |= davinci_mcasp_rx_irq_handler(irq, data);
+
+ return ret;
+}
+
static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
@@ -1441,6 +1455,22 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
mcasp->dev = &pdev->dev;
+ irq = platform_get_irq_byname(pdev, "common");
+ if (irq >= 0) {
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_common\n",
+ dev_name(&pdev->dev));
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+ davinci_mcasp_common_irq_handler,
+ IRQF_ONESHOT, irq_name, mcasp);
+ if (ret) {
+ dev_err(&pdev->dev, "common IRQ request failed\n");
+ goto err;
+ }
+
+ mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK] = XUNDRN;
+ mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE] = ROVRN;
+ }
+
irq = platform_get_irq_byname(pdev, "rx");
if (irq >= 0) {
irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_rx\n",
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