Do not skip the sysc programming in the hmwod framework based
on the cached value alone, since at times the module might have lost
context (due to the Powerdomain in which the module belongs
transitions to either Open Switch RET or OFF).
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: Benoit Cousson <b-cousson@xxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
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 cb911d7..e57fe21 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -115,7 +115,10 @@ static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
/* XXX ensure module interface clock is up */
- if (oh->_sysc_cache != v) {
+ if ((oh->_sysc_cache != v) ||
+ /* Did the module go to off and loose context? */
+ (oh->_sysc_cache !=
+ omap_hwmod_readl(oh, oh->class->sysc->sysc_offs))) {
oh->_sysc_cache = v;
omap_hwmod_writel(v, oh, oh->class->sysc->sysc_offs);
}
--
1.7.0.4
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