From: Miguel Vadillo <vadillo@xxxxxx>
When calling the shutdown, the module may be already in idle.
Accessing the sysconfig register will then lead to a crash.
In that case, re-enable the module in order to allow the access
to the sysconfig register.
Signed-off-by: Miguel Vadillo <vadillo@xxxxxx>
Signed-off-by: Benoit Cousson <b-cousson@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
---
arch/arm/mach-omap2/omap_hwmod.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 384d3c3..cbc2a8a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1396,8 +1396,11 @@ static int _shutdown(struct omap_hwmod *oh)
}
}
- if (oh->class->sysc)
+ if (oh->class->sysc) {
+ if (oh->_state == _HWMOD_STATE_IDLE)
+ _enable(oh);
_shutdown_sysc(oh);
+ }
/*
* If an IP contains only one HW reset line, then assert it
--
1.7.0.4
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