diff mbox

ASoC: davinci-mcasp: Support for combined tx/rx interrupt line

Message ID 1419948632-18352-1-git-send-email-peter.ujfalusi@ti.com (mailing list archive)
State Accepted
Commit 5a1b8a80daa15e5b1920735133b80dd46975765f
Headers show

Commit Message

Peter Ujfalusi Dec. 30, 2014, 2:10 p.m. UTC 
Some SoC, like da850/OMAP-L138 uses one common interrupt request for TX/RX
events.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 sound/soc/davinci/davinci-mcasp.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

Comments

Mark Brown Dec. 30, 2014, 4:44 p.m. UTC | #1 
On Tue, Dec 30, 2014 at 04:10:32PM +0200, Peter Ujfalusi wrote:
> Some SoC, like da850/OMAP-L138 uses one common interrupt request for TX/RX
> events.

Applied, thanks.
diff mbox

Patch

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 30b94d4f9c5d..95eef582331b 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",