* [PATCH] ASoC: dwc: Propagate -EPROBE_DEFER from IRQ lookup
@ 2026-08-06 6:10 phucduc.bui
0 siblings, 0 replies; only message in thread
From: phucduc.bui @ 2026-08-06 6:10 UTC (permalink / raw)
To: Mark Brown, Liam Girdwood, Jaroslav Kysela, Takashi Iwai,
Tim Bird
Cc: linux-kernel, linux-sound, bui duc phuc
From: bui duc phuc <phucduc.bui@gmail.com>
platform_get_irq_optional() never returns 0. It returns a positive IRQ
number on success or a negative error code on failure.
Return -EPROBE_DEFER from platform_get_irq_optional() so the driver is
re-probed when the interrupt resource becomes available instead of
continuing probe without an IRQ.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
sound/soc/dwc/dwc-i2s.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 74dfd39fd604..2e9fb79b1cd8 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -955,7 +955,9 @@ static int dw_i2s_probe(struct platform_device *pdev)
}
irq = platform_get_irq_optional(pdev, 0);
- if (irq >= 0) {
+ if (irq == -EPROBE_DEFER)
+ return irq;
+ if (irq > 0) {
ret = devm_request_irq(&pdev->dev, irq, i2s_irq_handler, 0,
pdev->name, dev);
if (ret < 0) {
--
2.43.0
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