From: Axel Lin <axel.lin@ingics.com>
To: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>, linux-kernel@vger.kernel.org
Subject: [PATCH] regulator: wm831x-ldo: Fix max_uV for gp_ldo and aldo linear range settings
Date: Mon, 23 Sep 2013 15:54:20 +0800 [thread overview]
Message-ID: <1379922860.20251.1.camel@phoenix> (raw)
Fix the linear range settings in commit 5ff26a14c3331
"regulator: wm831x-ldo: Convert to use linear ranges".
For wm831x_gp_ldo:
We have below equations for list voltage before converting to linear ranges:
sel <= 0xe:
volt = 0.9-1.6V in 50mV steps
sel <= 0x1f:
volt = 1.7-3.3V in 100mV steps
max_uV for the first linear range should be 1600000 rather than 1650000. Fix it.
For wm831x_aldo:
We have below equations for list voltage before converting to linear ranges:
sel <= 0xc:
volt = 1-1.6V in 50mV steps
sel <= 0x1f
volt = 1.7-3.5V in 100mV steps
max_uV for the first linear range should be 1600000 rather than 1650000. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/wm831x-ldo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 2be72fe..482ebe8 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -63,7 +63,7 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
*/
static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = {
- { .min_uV = 900000, .max_uV = 1650000, .min_sel = 0, .max_sel = 14,
+ { .min_uV = 900000, .max_uV = 1600000, .min_sel = 0, .max_sel = 14,
.uV_step = 50000 },
{ .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31,
.uV_step = 100000 },
@@ -320,7 +320,7 @@ static struct platform_driver wm831x_gp_ldo_driver = {
*/
static const struct regulator_linear_range wm831x_aldo_ranges[] = {
- { .min_uV = 1000000, .max_uV = 1650000, .min_sel = 0, .max_sel = 12,
+ { .min_uV = 1000000, .max_uV = 1600000, .min_sel = 0, .max_sel = 12,
.uV_step = 50000 },
{ .min_uV = 1700000, .max_uV = 3500000, .min_sel = 13, .max_sel = 31,
.uV_step = 100000 },
--
1.8.1.2
next reply other threads:[~2013-09-23 7:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-23 7:54 Axel Lin [this message]
2013-09-23 11:05 ` [PATCH] regulator: wm831x-ldo: Fix max_uV for gp_ldo and aldo linear range settings Mark Brown
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