On OMAP4 we have one interrupt line per McBSP port.
At proble time tx, and rx irq value will be -ENXIO,
and only the tx irq will get corrected.
In omap_mcbsp_request if the rx_irq is not 0 we proceed,
and try to request the interrupt, which will fail on
OMAP4 (rx_irq == -6).
To avoid this error, clear the rx_irq at probe time
on OMAP4.
Signed-off-by: Peter Ujfalusi <peter.ujfal...@ti.com>
---
arch/arm/plat-omap/mcbsp.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 5587acf..1e4e32e 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -1867,8 +1867,10 @@ static int __devinit omap_mcbsp_probe(struct
platform_device *pdev)
mcbsp->rx_irq = platform_get_irq_byname(pdev, "rx");
/* From OMAP4 there will be a single irq line */
- if (mcbsp->tx_irq == -ENXIO)
+ if (mcbsp->tx_irq == -ENXIO) {
mcbsp->tx_irq = platform_get_irq(pdev, 0);
+ mcbsp->rx_irq = 0;
+ }
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
--
1.7.5.rc3
--
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