linux-kernel - [PATCH v3 3/3] regulator: axp20x: AXP717: Add boost regulator

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Message-Id: <20240816001824.6028-4-andre.przywara@arm.com>
Date: Fri, 16 Aug 2024 01:18:24 +0100
From: Andre Przywara <andre.przywara@....com>
To: Lee Jones <lee@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-sunxi@...ts.linux.dev,
	Chris Morgan <macroalpha82@...il.com>,
	John Watts <contact@...kia.org>,
	Ryan Walklin <ryan@...ttoast.com>,
	Philippe Simons <simons.philippe@...il.com>
Subject: [PATCH v3 3/3] regulator: axp20x: AXP717: Add boost regulator

The AXP717 also contains an adjustable boost regulator, to provide the
5V USB VBUS rail when running on battery.

Add the regulator description that states the voltage range this
regulator can cover.

Signed-off-by: Andre Przywara <andre.przywara@....com>
Reviewed-by: John Watts <contact@...kia.org>
---
 drivers/regulator/axp20x-regulator.c | 4 ++++
 include/linux/mfd/axp20x.h           | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index f3c447ecdc3bf..a8e91d9d028b8 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -143,6 +143,7 @@
 #define AXP717_DCDC3_NUM_VOLTAGES	103
 #define AXP717_DCDC_V_OUT_MASK		GENMASK(6, 0)
 #define AXP717_LDO_V_OUT_MASK		GENMASK(4, 0)
+#define AXP717_BOOST_V_OUT_MASK		GENMASK(7, 4)
 
 #define AXP803_PWR_OUT_DCDC1_MASK	BIT_MASK(0)
 #define AXP803_PWR_OUT_DCDC2_MASK	BIT_MASK(1)
@@ -834,6 +835,9 @@ static const struct regulator_desc axp717_regulators[] = {
 	AXP_DESC(AXP717, CPUSLDO, "cpusldo", "vin1", 500, 1400, 50,
 		 AXP717_CPUSLDO_CONTROL, AXP717_LDO_V_OUT_MASK,
 		 AXP717_LDO1_OUTPUT_CONTROL, BIT(4)),
+	AXP_DESC(AXP717, BOOST, "boost", "vin1", 4550, 5510, 64,
+		 AXP717_BOOST_CONTROL, AXP717_BOOST_V_OUT_MASK,
+		 AXP717_MODULE_EN_CONTROL_2, BIT(4)),
 };
 
 /* DCDC ranges shared with AXP813 */
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 3758f986491c8..e0cd66bd3b6d9 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -486,6 +486,7 @@ enum {
 	AXP717_CLDO3,
 	AXP717_CLDO4,
 	AXP717_CPUSLDO,
+	AXP717_BOOST,
 	AXP717_REG_ID_MAX,
 };
 
-- 
2.39.4