[d-kernel] [PATCH 18/35] sound: dwc-i2s: request all IRQs specified in device tree

[Daniil Gnusarev <gnusarevda@basealt.ru>]

From: Alexey Sheplyakov <asheplyakov@basealt.ru>

Some SoCs need more than one IRQ to use the block properly.
Therefore dw_i2s_probe should requests all IRQs specified
in the device tree.

Signed-off-by: Alexey Sheplyakov <asheplyakov@basealt.ru>
X-feature-Baikal-M
---
 sound/soc/dwc/dwc-i2s.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 28001e9857d9dc..5d2e8c2f51c27f 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -919,7 +919,7 @@ static int dw_i2s_probe(struct platform_device *pdev)
 	const struct i2s_platform_data *pdata = pdev->dev.platform_data;
 	struct dw_i2s_dev *dev;
 	struct resource *res;
-	int ret, irq;
+	int ret, irq, irq_count;
 	struct snd_soc_dai_driver *dw_i2s_dai;
 	const char *clk_id;
 
@@ -957,10 +957,18 @@ static int dw_i2s_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	irq = platform_get_irq_optional(pdev, 0);
-	if (irq >= 0) {
+	irq_count = platform_irq_count(pdev);
+	if (irq_count < 0) /* - EPROBE_DEFER */
+		return irq_count;
+
+	for (unsigned i = 0; i < (unsigned)irq_count; i++) {
+		irq = platform_get_irq(pdev, i);
+		if (irq < 0)
+			return irq;
+
 		ret = devm_request_irq(&pdev->dev, irq, i2s_irq_handler, 0,
 				pdev->name, dev);
+
 		if (ret < 0) {
 			dev_err(&pdev->dev, "failed to request irq\n");
 			goto err_assert_reset;
-- 
2.42.2