linux-kernel - [PATCH v5 3/3] hwmon: (pmbus/adp1050): Add regulator support for ltp8800

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Message-ID: <20250709-adp1051-v5-3-539254692252@analog.com>
Date: Wed, 9 Jul 2025 13:43:27 +0800
From: Cedric Encarnacion <cedricjustine.encarnacion@...log.com>
To: Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>,
        "Rob
 Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor
 Dooley" <conor+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        "Andy
 Shevchenko" <andriy.shevchenko@...ux.intel.com>,
        Delphine CC Chiu
	<Delphine_CC_Chiu@...ynn.com>,
        Uwe Kleine-König
	<u.kleine-koenig@...gutronix.de>
CC: Radu Sabau <radu.sabau@...log.com>,
        Alexis Czezar Torreno
	<alexisczezar.torreno@...log.com>,
        <linux-hwmon@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        Cedric Encarnacion
	<cedricjustine.encarnacion@...log.com>
Subject: [PATCH v5 3/3] hwmon: (pmbus/adp1050): Add regulator support for
 ltp8800

Add regulator support for the single-channel LTP8800-1A/-2/-4A
150A/135A/200A DC/DC µModule Regulator.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Cedric Encarnacion <cedricjustine.encarnacion@...log.com>
---
 drivers/hwmon/pmbus/Kconfig   |  9 +++++++++
 drivers/hwmon/pmbus/adp1050.c | 10 ++++++++++
 2 files changed, 19 insertions(+)

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 441f984a859dd935e5248793f1bf54204ce2c371..55e492452ce8115419718256de38dda1bd39fd9a 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -67,6 +67,15 @@ config SENSORS_ADP1050
 	  This driver can also be built as a module. If so, the module will
 	  be called adp1050.
 
+config SENSORS_ADP1050_REGULATOR
+	bool "Regulator support for ADP1050 and compatibles"
+	depends on SENSORS_ADP1050 && REGULATOR
+	help
+	  If you say yes here you get regulator support for Analog Devices
+	  LTP8800-1A, LTP8800-4A, and LTP8800-2. LTP8800 is a family of DC/DC
+	  µModule regulators that can provide microprocessor power from 54V
+	  power distribution architecture.
+
 config SENSORS_BEL_PFE
 	tristate "Bel PFE Compatible Power Supplies"
 	help
diff --git a/drivers/hwmon/pmbus/adp1050.c b/drivers/hwmon/pmbus/adp1050.c
index 353758a6ffd69e33203e8d1447accf2c75ebecd5..0c23f53a287bee36d9b4873013556493d8964970 100644
--- a/drivers/hwmon/pmbus/adp1050.c
+++ b/drivers/hwmon/pmbus/adp1050.c
@@ -11,6 +11,12 @@
 
 #include "pmbus.h"
 
+#if IS_ENABLED(CONFIG_SENSORS_ADP1050_REGULATOR)
+static const struct regulator_desc adp1050_reg_desc[] = {
+	PMBUS_REGULATOR_ONE("vout"),
+};
+#endif /* CONFIG_SENSORS_ADP1050_REGULATOR */
+
 static struct pmbus_driver_info adp1050_info = {
 	.pages = 1,
 	.format[PSC_VOLTAGE_IN] = linear,
@@ -65,6 +71,10 @@ static struct pmbus_driver_info ltp8800_info = {
 		| PMBUS_HAVE_STATUS_VOUT
 		| PMBUS_HAVE_STATUS_INPUT
 		| PMBUS_HAVE_STATUS_TEMP,
+#if IS_ENABLED(CONFIG_SENSORS_ADP1050_REGULATOR)
+	.num_regulators = 1,
+	.reg_desc = adp1050_reg_desc,
+#endif
 };
 
 static int adp1050_probe(struct i2c_client *client)

-- 
2.39.5