power: regulator: add AXP313 support
The X-Powers AXP313a is a small PMIC with just three buck converters and
three LDOs, one of which is actually fixed (so not modelled here).
Add the compatible string and the respective regulator ranges to allow
drivers to adjust voltages.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/power/regulator/axp_regulator.c b/drivers/power/regulator/axp_regulator.c
index 02f320e..d27e095 100644
--- a/drivers/power/regulator/axp_regulator.c
+++ b/drivers/power/regulator/axp_regulator.c
@@ -173,6 +173,22 @@
{ }
};
+/*
+ * The "dcdc1" regulator has another range, beyond 1.54V up to 3.4V, in
+ * steps of 100mV. We cannot model this easily, but also don't need that,
+ * since it's typically only used for ~1.1V anyway, so just ignore it.
+ * Also the DCDC3 regulator is described wrongly in the (available) manual,
+ * experiments show that the split point is at 1200mV, as for DCDC1/2.
+ */
+static const struct axp_regulator_plat axp313_regulators[] = {
+ { "dcdc1", 0x10, BIT(0), 0x13, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc2", 0x10, BIT(1), 0x14, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc3", 0x10, BIT(2), 0x15, 0x7f, 500, 1840, 10, 70 },
+ { "aldo1", 0x10, BIT(3), 0x16, 0x1f, 500, 3500, 100, NA },
+ { "dldo1", 0x10, BIT(4), 0x17, 0x1f, 500, 3500, 100, NA },
+ { }
+};
+
static const struct axp_regulator_plat axp803_regulators[] = {
{ "dcdc1", 0x10, BIT(0), 0x20, 0x1f, 1600, 3400, 100, NA },
{ "dcdc2", 0x10, BIT(1), 0x21, 0x7f, 500, 1300, 10, 70 },
@@ -274,6 +290,7 @@
[AXP209_ID] = axp20x_regulators,
[AXP221_ID] = axp22x_regulators,
[AXP223_ID] = axp22x_regulators,
+ [AXP313_ID] = axp313_regulators,
[AXP803_ID] = axp803_regulators,
[AXP806_ID] = axp806_regulators,
[AXP809_ID] = axp809_regulators,