* [PATCH] regulator: core: Fix logic to determinate if regulator can change voltage
@ 2012-12-11 12:36 Axel Lin
2012-12-11 12:44 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Axel Lin @ 2012-12-11 12:36 UTC (permalink / raw)
To: Mark Brown; +Cc: Marek Szyprowski, Liam Girdwood, linux-kernel
Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index cd1b201..0f65b24 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1886,7 +1886,7 @@ int regulator_can_change_voltage(struct regulator *regulator)
if (rdev->constraints &&
rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE &&
- rdev->desc->n_voltages > 1)
+ (rdev->desc->n_voltages - rdev->desc->linear_min_sel) > 1)
return 1;
return 0;
--
1.7.9.5
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2012-12-11 12:36 [PATCH] regulator: core: Fix logic to determinate if regulator can change voltage Axel Lin
2012-12-11 12:44 ` Mark Brown
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