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Date: Thu, 1 Dec 2016 10:44:16 -0600
From: "Andrew F. Davis" <afd@...com>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>
CC: <linux-kernel@...r.kernel.org>, "Andrew F . Davis" <afd@...com>
Subject: [PATCH] regulator: tps65086: Fix 25mV ranges for BUCK regulators
The BUCK regulators 3, 4, and 5 also have a 10mV step mode,
adjust the tables and logic to reflect the data-sheet for
these regulators.
fixes: d2a2e729a666 ("regulator: tps65086: Add regulator driver for the TPS65086 PMIC")
Signed-off-by: Andrew F. Davis <afd@...com>
---
Documentation/devicetree/bindings/mfd/tps65086.txt | 2 +-
drivers/regulator/tps65086-regulator.c | 54 +++++++++++-----------
2 files changed, 29 insertions(+), 27 deletions(-)
diff --git a/Documentation/devicetree/bindings/mfd/tps65086.txt b/Documentation/devicetree/bindings/mfd/tps65086.txt
index d370561..9cfa886 100644
--- a/Documentation/devicetree/bindings/mfd/tps65086.txt
+++ b/Documentation/devicetree/bindings/mfd/tps65086.txt
@@ -23,7 +23,7 @@ Required properties:
defined below.
Optional regulator properties:
- - ti,regulator-step-size-25mv : This is applicable for buck[1,2,6], set this
+ - ti,regulator-step-size-25mv : This is applicable for buck[1-6], set this
if the regulator is factory set with a 25mv
step voltage mapping.
- ti,regulator-decay : This is applicable for buck[1-6], set this if
diff --git a/drivers/regulator/tps65086-regulator.c b/drivers/regulator/tps65086-regulator.c
index 33f389d..caf174f 100644
--- a/drivers/regulator/tps65086-regulator.c
+++ b/drivers/regulator/tps65086-regulator.c
@@ -71,18 +71,17 @@ struct tps65086_regulator {
unsigned int decay_mask;
};
-static const struct regulator_linear_range tps65086_buck126_10mv_ranges[] = {
+static const struct regulator_linear_range tps65086_10mv_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000),
};
static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = {
- REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
- REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0),
+ REGULATOR_LINEAR_RANGE(1000000, 0x0, 0x18, 0),
REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000),
};
-static const struct regulator_linear_range tps65086_buck345_ranges[] = {
+static const struct regulator_linear_range tps65086_buck345_25mv_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000),
};
@@ -125,27 +124,27 @@ static int tps65086_of_parse_cb(struct device_node *dev,
static struct tps65086_regulator regulators[] = {
TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0),
- tps65086_buck126_10mv_ranges, TPS65086_BUCK1CTRL,
+ tps65086_10mv_ranges, TPS65086_BUCK1CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1),
- tps65086_buck126_10mv_ranges, TPS65086_BUCK2CTRL,
+ tps65086_10mv_ranges, TPS65086_BUCK2CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2),
- tps65086_buck345_ranges, TPS65086_BUCK3DECAY,
+ tps65086_10mv_ranges, TPS65086_BUCK3DECAY,
BIT(0)),
TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID,
BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0),
- tps65086_buck345_ranges, TPS65086_BUCK4VID,
+ tps65086_10mv_ranges, TPS65086_BUCK4VID,
BIT(0)),
TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID,
BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0),
- tps65086_buck345_ranges, TPS65086_BUCK5CTRL,
+ tps65086_10mv_ranges, TPS65086_BUCK5CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID,
BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0),
- tps65086_buck126_10mv_ranges, TPS65086_BUCK6CTRL,
+ tps65086_10mv_ranges, TPS65086_BUCK6CTRL,
BIT(0)),
TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL,
VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0),
@@ -162,18 +161,6 @@ static struct tps65086_regulator regulators[] = {
TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
};
-static inline bool has_25mv_mode(int id)
-{
- switch (id) {
- case BUCK1:
- case BUCK2:
- case BUCK6:
- return true;
- default:
- return false;
- }
-}
-
static int tps65086_of_parse_cb(struct device_node *dev,
const struct regulator_desc *desc,
struct regulator_config *config)
@@ -181,12 +168,27 @@ static int tps65086_of_parse_cb(struct device_node *dev,
int ret;
/* Check for 25mV step mode */
- if (has_25mv_mode(desc->id) &&
- of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
- regulators[desc->id].desc.linear_ranges =
+ if (of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
+ switch (desc->id) {
+ case BUCK1:
+ case BUCK2:
+ case BUCK6:
+ regulators[desc->id].desc.linear_ranges =
tps65086_buck126_25mv_ranges;
- regulators[desc->id].desc.n_linear_ranges =
+ regulators[desc->id].desc.n_linear_ranges =
ARRAY_SIZE(tps65086_buck126_25mv_ranges);
+ break;
+ case BUCK3:
+ case BUCK4:
+ case BUCK5:
+ regulators[desc->id].desc.linear_ranges =
+ tps65086_buck345_25mv_ranges;
+ regulators[desc->id].desc.n_linear_ranges =
+ ARRAY_SIZE(tps65086_buck345_25mv_ranges);
+ break;
+ default:
+ dev_warn(config->dev, "25mV step mode only valid for BUCK regulators\n");
+ }
}
/* Check for decay mode */
--
2.10.2
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