From: Axel Lin <axel.lin@gmail.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>,
linux-kernel@vger.kernel.org, Gyungoh Yoo <jack.yoo@maxim-ic.com>,
Stephen Warren <swarren@nvidia.com>,
Laxman Dewangan <ldewangan@nvidia.com>
Subject: [PATCH] regulator: max8907: Fix n_voltages for MAX8907B SD1
Date: Thu, 16 Aug 2012 12:26:02 +0800 [thread overview]
Message-ID: <1345091162.14780.0.camel@phoenix> (raw)
For linear voltage mapping, the n_voltages is (max - min) / step + 1
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/regulator/max8907-regulator.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/max8907-regulator.c b/drivers/regulator/max8907-regulator.c
index bd3b28b..bdf21a1 100644
--- a/drivers/regulator/max8907-regulator.c
+++ b/drivers/regulator/max8907-regulator.c
@@ -286,7 +286,8 @@ static __devinit int max8907_regulator_probe(struct platform_device *pdev)
MAX8907_II2RR_VERSION_REV_B) {
pmic->desc[MAX8907_SD1].min_uV = 637500;
pmic->desc[MAX8907_SD1].uV_step = 12500;
- pmic->desc[MAX8907_SD1].n_voltages = (1425000 - 637500) / 12500;
+ pmic->desc[MAX8907_SD1].n_voltages =
+ (1425000 - 637500) / 12500 + 1;
}
for (i = 0; i < MAX8907_NUM_REGULATORS; i++) {
--
1.7.9.5
next reply other threads:[~2012-08-16 4:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-16 4:26 Axel Lin [this message]
2012-08-16 16:06 ` [PATCH] regulator: max8907: Fix n_voltages for MAX8907B SD1 Stephen Warren
2012-08-17 22:01 ` Mark Brown
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