* [PATCH] regulator: Fix the logic to ensure new voltage setting in valid range
@ 2012-04-11 12:53 Axel Lin
2012-04-17 14:17 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Axel Lin @ 2012-04-11 12:53 UTC (permalink / raw)
To: linux-kernel; +Cc: Kyungmin Park, MyungJoo Ham, Liam Girdwood, Mark Brown
I think this is a typo.
To ensure new voltage setting won't greater than desc->max,
the equation should be desc->min + desc->step * new_val <= desc->max.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/regulator/max8997.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index db09244..77feeeb 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -682,7 +682,7 @@ static int max8997_set_voltage_buck(struct regulator_dev *rdev,
}
new_val++;
- } while (desc->min + desc->step + new_val <= desc->max);
+ } while (desc->min + desc->step * new_val <= desc->max);
new_idx = tmp_idx;
new_val = tmp_val;
--
1.7.5.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] regulator: Fix the logic to ensure new voltage setting in valid range
2012-04-11 12:53 [PATCH] regulator: Fix the logic to ensure new voltage setting in valid range Axel Lin
@ 2012-04-17 14:17 ` Mark Brown
0 siblings, 0 replies; 2+ messages in thread
From: Mark Brown @ 2012-04-17 14:17 UTC (permalink / raw)
To: Axel Lin; +Cc: linux-kernel, Kyungmin Park, MyungJoo Ham, Liam Girdwood
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On Wed, Apr 11, 2012 at 08:53:58PM +0800, Axel Lin wrote:
> I think this is a typo.
> To ensure new voltage setting won't greater than desc->max,
> the equation should be desc->min + desc->step * new_val <= desc->max.
Applied, thanks.
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