From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
SSI will use DMA mode, and migh be fallback to PIO mode.
Using devm_request_irq() makes its operation more complex when
it fallbacks to PIO mode.
Let's use manual request_irq()/free_irq()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
sound/soc/sh/rcar/ssi.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 59cd982..b0338d0 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -644,10 +644,14 @@ static int rsnd_ssi_common_probe(struct rsnd_mod *mod,
if (ret < 0)
return ret;
- ret = devm_request_irq(dev, ssi->irq,
- rsnd_ssi_interrupt,
- IRQF_SHARED,
- dev_name(dev), mod);
+ /*
+ * SSI might be called again as PIO fallback
+ * It is easy to manual handling for IRQ request/free
+ */
+ ret = request_irq(ssi->irq,
+ rsnd_ssi_interrupt,
+ IRQF_SHARED,
+ dev_name(dev), mod);
return ret;
}
@@ -693,12 +697,9 @@ static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
struct rsnd_priv *priv)
{
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
- struct device *dev = rsnd_priv_to_dev(priv);
- int irq = ssi->irq;
/* PIO will request IRQ again */
- if (ssi->dma)
- devm_free_irq(dev, irq, mod);
+ free_irq(ssi->irq, mod);
rsnd_dma_detach(mod, &ssi->dma);
--
1.9.1
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