[PATCH 05/10] mfd: arizona: Check errors from regcache_sync()

2013-01-26 Thread Mark Brown 
If the control bus is unrelabile we may hit errors during regcache_sync(),
especially given that it tends to be one the most dense bursts of I/O in
many systems.

Signed-off-by: Mark Brown 
---
 drivers/mfd/arizona-core.c |7 ++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index a8b8a7b..1ab02a7 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -239,7 +239,12 @@ static int arizona_runtime_resume(struct device *dev)
return ret;
}
 
-   regcache_sync(arizona->regmap);
+   ret = regcache_sync(arizona->regmap);
+   if (ret != 0) {
+   dev_err(arizona->dev, "Failed to restore register cache\n");
+   regulator_disable(arizona->dcvdd);
+   return ret;
+   }
 
return 0;
 }
-- 
1.7.10.4

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[PATCH 05/10] mfd: arizona: Check errors from regcache_sync()

2013-01-26 Thread Mark Brown 
If the control bus is unrelabile we may hit errors during regcache_sync(),
especially given that it tends to be one the most dense bursts of I/O in
many systems.

Signed-off-by: Mark Brown broo...@opensource.wolfsonmicro.com
---
 drivers/mfd/arizona-core.c |7 ++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index a8b8a7b..1ab02a7 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -239,7 +239,12 @@ static int arizona_runtime_resume(struct device *dev)
return ret;
}
 
-   regcache_sync(arizona-regmap);
+   ret = regcache_sync(arizona-regmap);
+   if (ret != 0) {
+   dev_err(arizona-dev, Failed to restore register cache\n);
+   regulator_disable(arizona-dcvdd);
+   return ret;
+   }
 
return 0;
 }
-- 
1.7.10.4

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