In order to be able to cope with ordering problems, especially when the
interrupt descriptor is allocated only after the sa1111 is probed, add a
workaround to "wait" for the interrupt chip to be available.
Signed-off-by: Robert Jarzmik <robert.jarz...@free.fr>
---
arch/arm/common/sa1111.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 1b03ff639836..abd94ff83a6c 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/errno.h>
+#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@@ -1183,6 +1184,9 @@ static int sa1111_probe(struct platform_device *pdev)
if (irq < 0)
return irq;
+ if (!irq_get_chip(irq))
+ return -EPROBE_DEFER;
+
return __sa1111_probe(&pdev->dev, mem, irq);
}
--
2.1.4
