linux-kernel - [PATCH v2 3/3] hwmon (xdpe12284): Add regulator support

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Message-Id: <e8839386e9e5daa5f3df746003d80f613d130947.1645108566.git.sylv@sylv.io>
Date:   Thu, 17 Feb 2022 15:41:35 +0100
From:   Marcello Sylvester Bauer <sylv@...v.io>
To:     Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>
Cc:     linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Patrick Rudolph <patrick.rudolph@...ements.com>,
        Marcello Sylvester Bauer <sylv@...v.io>
Subject: [PATCH v2 3/3] hwmon (xdpe12284): Add regulator support

Add simple on/off regulator support for xdpe12284 and
other pmbus parts supported by the xdpe12284 driver.

Signed-off-by: Marcello Sylvester Bauer <sylv@...v.io>
---
 drivers/hwmon/pmbus/Kconfig     |  6 ++++++
 drivers/hwmon/pmbus/xdpe12284.c | 11 +++++++++++
 2 files changed, 17 insertions(+)

diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index c96f7b7338bd..e0e9b67bf3eb 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -394,6 +394,12 @@ config SENSORS_XDPE122
 	  This driver can also be built as a module. If so, the module will
 	  be called xdpe12284.
 
+config SENSORS_XDPE122_REGULATOR
+	bool "Regulator support for XDPE122 and compatibles"
+	depends on SENSORS_XDPE122 && REGULATOR
+	help
+	  Uses the xdpe12284 or compatible as regulator.
+
 config SENSORS_ZL6100
 	tristate "Intersil ZL6100 and compatibles"
 	help
diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c
index ec947c697670..c58776ef0311 100644
--- a/drivers/hwmon/pmbus/xdpe12284.c
+++ b/drivers/hwmon/pmbus/xdpe12284.c
@@ -10,6 +10,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/regulator/driver.h>
+
 #include "pmbus.h"
 
 #define XDPE122_PROT_VR12_5MV		0x01 /* VR12.0 mode, 5-mV DAC */
@@ -120,6 +122,11 @@ static int xdpe122_identify(struct i2c_client *client,
 	return 0;
 }
 
+static const struct regulator_desc xdpe122_reg_desc[] = {
+	PMBUS_REGULATOR("vout", 0),
+	PMBUS_REGULATOR("vout", 1),
+};
+
 static struct pmbus_driver_info xdpe122_info = {
 	.pages = XDPE122_PAGE_NUM,
 	.format[PSC_VOLTAGE_IN] = linear,
@@ -138,6 +145,10 @@ static struct pmbus_driver_info xdpe122_info = {
 		PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
 	.identify = xdpe122_identify,
 	.read_word_data = xdpe122_read_word_data,
+#if IS_ENABLED(CONFIG_SENSORS_XDPE122_REGULATOR)
+	.num_regulators = 2,
+	.reg_desc = xdpe122_reg_desc,
+#endif
 };
 
 static int xdpe122_probe(struct i2c_client *client)
-- 
2.34.1