[PATCH v2 07/13] regulator: ab8500: Use linear ranges for LDO voltages

[Linus Walleij <linusw@kernel.org>]

VINTCORE uses consecutive selectors with uniform 25 mV steps, with
AB8505 duplicating the highest voltage at selector 7. AB8505 VAUDIO
likewise has uniform 100 mV steps followed by a duplicate selector for
its highest voltage.

Describe these selector encodings with linear ranges and the matching
regulator helpers instead of enumerated voltage tables. Keep tables for
the irregular and non-monotonic VAUX and VANA selectors.

Assisted-by: LLM
Signed-off-by: Linus Walleij <linusw@kernel.org>
---
 drivers/regulator/ab8500.c | 74 +++++++++++++++++++++++-----------------------
 1 file changed, 37 insertions(+), 37 deletions(-)

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index e4c3502c8dbc..d1540099104c 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -258,25 +258,13 @@ static const unsigned int ldo_vaux56_voltages[] = {
 	2790000,
 };
 
-static const unsigned int ldo_vintcore_voltages[] = {
-	1200000,
-	1225000,
-	1250000,
-	1275000,
-	1300000,
-	1325000,
-	1350000,
+static const struct linear_range ldo_vintcore_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0, 6, 25000),
 };
 
-static const unsigned int ldo_vintcore_ab8505_voltages[] = {
-	1200000,
-	1225000,
-	1250000,
-	1275000,
-	1300000,
-	1325000,
-	1350000,
-	1350000,
+static const struct linear_range ldo_vintcore_ab8505_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0, 6, 25000),
+	REGULATOR_LINEAR_RANGE(1350000, 7, 7, 0),
 };
 
 static const unsigned int fixed_1200000_voltage[] = {
@@ -306,15 +294,10 @@ static const unsigned int ldo_vana_voltages[] = {
 	1225000,
 };
 
-static const unsigned int ldo_vaudio_voltages[] = {
-	2000000,
-	2100000,
-	2200000,
-	2300000,
-	2400000,
-	2500000,
-	2600000,
-	2600000,	/* Duplicated in Vaudio and IsoUicc Control register. */
+static const struct linear_range ldo_vaudio_ranges[] = {
+	REGULATOR_LINEAR_RANGE(2000000, 0, 6, 100000),
+	/* Duplicated in Vaudio and IsoUicc Control register. */
+	REGULATOR_LINEAR_RANGE(2600000, 7, 7, 0),
 };
 
 static DEFINE_MUTEX(shared_mode_mutex);
@@ -720,13 +703,27 @@ static const struct regulator_ops ab8500_regulator_volt_mode_expand_ops = {
 	.list_voltage		= regulator_list_voltage_table,
 };
 
-static const struct regulator_ops ab8500_regulator_volt_ops = {
+static const struct regulator_ops ab8500_regulator_linear_range_volt_mode_ops = {
+	.enable			= ab8500_regulator_enable,
+	.disable		= ab8500_regulator_disable,
+	.is_enabled		= ab8500_regulator_is_enabled,
+	.get_optimum_mode	= ab8500_regulator_get_optimum_mode,
+	.set_mode		= ab8500_regulator_set_mode,
+	.get_mode		= ab8500_regulator_get_mode,
+	.get_voltage_sel	= ab8500_regulator_get_voltage_sel,
+	.set_voltage_sel	= ab8500_regulator_set_voltage_sel,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_ops ab8500_regulator_linear_range_volt_ops = {
 	.enable		= ab8500_regulator_enable,
 	.disable	= ab8500_regulator_disable,
 	.is_enabled	= ab8500_regulator_is_enabled,
 	.get_voltage_sel = ab8500_regulator_get_voltage_sel,
 	.set_voltage_sel = ab8500_regulator_set_voltage_sel,
-	.list_voltage	= regulator_list_voltage_table,
+	.list_voltage	= regulator_list_voltage_linear_range,
+	.map_voltage	= regulator_map_voltage_linear_range,
 };
 
 static const struct regulator_ops ab8500_regulator_mode_ops = {
@@ -836,12 +833,13 @@ static struct ab8500_regulator_info
 	[AB8500_LDO_INTCORE] = {
 		.desc = {
 			.name		= "LDO-INTCORE",
-			.ops		= &ab8500_regulator_volt_mode_ops,
+			.ops		= &ab8500_regulator_linear_range_volt_mode_ops,
 			.type		= REGULATOR_VOLTAGE,
 			.id		= AB8500_LDO_INTCORE,
 			.owner		= THIS_MODULE,
-			.n_voltages	= ARRAY_SIZE(ldo_vintcore_voltages),
-			.volt_table	= ldo_vintcore_voltages,
+			.n_voltages	= 7,
+			.linear_ranges	= ldo_vintcore_ranges,
+			.n_linear_ranges = ARRAY_SIZE(ldo_vintcore_ranges),
 			.enable_time	= 750,
 		},
 		.load_lp_uA		= 5000,
@@ -1121,12 +1119,13 @@ static struct ab8500_regulator_info
 	[AB8505_LDO_INTCORE] = {
 		.desc = {
 			.name		= "LDO-INTCORE",
-			.ops		= &ab8500_regulator_volt_mode_ops,
+			.ops		= &ab8500_regulator_linear_range_volt_mode_ops,
 			.type		= REGULATOR_VOLTAGE,
 			.id		= AB8505_LDO_INTCORE,
 			.owner		= THIS_MODULE,
-			.n_voltages	= ARRAY_SIZE(ldo_vintcore_ab8505_voltages),
-			.volt_table	= ldo_vintcore_ab8505_voltages,
+			.n_voltages	= 8,
+			.linear_ranges	= ldo_vintcore_ab8505_ranges,
+			.n_linear_ranges = ARRAY_SIZE(ldo_vintcore_ab8505_ranges),
 		},
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x03,
@@ -1169,12 +1168,13 @@ static struct ab8500_regulator_info
 	[AB8505_LDO_AUDIO] = {
 		.desc = {
 			.name		= "LDO-AUDIO",
-			.ops		= &ab8500_regulator_volt_ops,
+			.ops		= &ab8500_regulator_linear_range_volt_ops,
 			.type		= REGULATOR_VOLTAGE,
 			.id		= AB8505_LDO_AUDIO,
 			.owner		= THIS_MODULE,
-			.n_voltages	= ARRAY_SIZE(ldo_vaudio_voltages),
-			.volt_table	= ldo_vaudio_voltages,
+			.n_voltages	= 8,
+			.linear_ranges	= ldo_vaudio_ranges,
+			.n_linear_ranges = ARRAY_SIZE(ldo_vaudio_ranges),
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,

-- 
2.55.0