lkml.org 
[lkml]   [2016]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/3] [DO_NOT_REVIEW] sa1111: left up to Russell King
Date
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.jarzmik@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
\
 
 \ /
  Last update: 2016-09-17 09:58    [W:2.292 / U:0.636 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site