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Message-Id: <20230124110111.3965317-1-Naresh.Solanki@9elements.com>
Date: Tue, 24 Jan 2023 12:01:11 +0100
From: Naresh Solanki <naresh.solanki@...ements.com>
To: Guenter Roeck <linux@...ck-us.net>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Jean Delvare <jdelvare@...e.com>
Cc: linux-hwmon@...r.kernel.org,
Patrick Rudolph <patrick.rudolph@...ements.com>,
Naresh Solanki <Naresh.Solanki@...ements.com>,
Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] hwmon: (pmbus/tda38640) Add driver for Infineon TDA38640 Voltage Regulator
From: Patrick Rudolph <patrick.rudolph@...ements.com>
Add the pmbus driver for the Infineon TDA38640 voltage regulator.
Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
---
.../devicetree/bindings/trivial-devices.yaml | 2 +
drivers/hwmon/pmbus/Kconfig | 16 ++++
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/tda38640.c | 78 +++++++++++++++++++
4 files changed, 97 insertions(+)
create mode 100644 drivers/hwmon/pmbus/tda38640.c
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index f5c0a6283e61..a28b02036489 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -141,6 +141,8 @@ properties:
- infineon,slb9645tt
# Infineon SLB9673 I2C TPM 2.0
- infineon,slb9673
+ # Infineon TDA38640 Voltage Regulator
+ - infineon,tda38640
# Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor
- infineon,tlv493d-a1b6
# Infineon Multi-phase Digital VR Controller xdpe11280
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 30448e049486..9f4bbb9c487a 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -395,6 +395,22 @@ config SENSORS_STPDDC60
This driver can also be built as a module. If so, the module will
be called stpddc60.
+config SENSORS_TDA38640
+ tristate "Infineon TDA38640"
+ help
+ If you say yes here you get hardware monitoring support for Infineon
+ TDA38640.
+
+ This driver can also be built as a module. If so, the module will
+ be called tda38640.
+
+config SENSORS_TDA38640_REGULATOR
+ bool "Regulator support for TDA38640 and compatibles"
+ depends on SENSORS_TDA38640 && REGULATOR
+ help
+ If you say yes here you get regulator support for Infineon
+ TDA38640 as regulator.
+
config SENSORS_TPS40422
tristate "TI TPS40422"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index d9d2fa4bd6f7..3ae019916267 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o
obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o
obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o
+obj-$(CONFIG_SENSORS_TDA38640) += tda38640.o
obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o
diff --git a/drivers/hwmon/pmbus/tda38640.c b/drivers/hwmon/pmbus/tda38640.c
new file mode 100644
index 000000000000..31e17a936b8c
--- /dev/null
+++ b/drivers/hwmon/pmbus/tda38640.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for Infineon TDA38640
+ *
+ * Copyright (c) 2023 9elements GmbH
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/driver.h>
+#include "pmbus.h"
+
+#if IS_ENABLED(CONFIG_SENSORS_TDA38640_REGULATOR)
+static const struct regulator_desc tda38640_reg_desc[] = {
+ PMBUS_REGULATOR("vout", 0),
+};
+#endif /* CONFIG_SENSORS_TDA38640_REGULATOR */
+
+static struct pmbus_driver_info tda38640_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = linear,
+ .format[PSC_CURRENT_OUT] = linear,
+ .format[PSC_CURRENT_IN] = linear,
+ .format[PSC_POWER] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+ | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+ | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+ | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN,
+#if IS_ENABLED(CONFIG_SENSORS_TDA38640_REGULATOR)
+ .num_regulators = 1,
+ .reg_desc = tda38640_reg_desc,
+#endif
+};
+
+static int tda38640_probe(struct i2c_client *client)
+{
+ return pmbus_do_probe(client, &tda38640_info);
+}
+
+static const struct i2c_device_id tda38640_id[] = {
+ {"tda38640", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, tda38640_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id tda38640_of_match[] = {
+ { .compatible = "infineon,tda38640"},
+ { },
+};
+MODULE_DEVICE_TABLE(of, tda38640_of_match);
+#endif
+
+/* This is the driver that will be inserted */
+static struct i2c_driver tda38640_driver = {
+ .driver = {
+ .name = "tda38640",
+ },
+ .probe_new = tda38640_probe,
+ .id_table = tda38640_id,
+};
+
+module_i2c_driver(tda38640_driver);
+
+MODULE_AUTHOR("Patrick Rudolph <patrick.rudolph@...ements.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon TDA38640");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);
base-commit: 4d891f76a30d3be4194a805c5e4277786140ef05
--
2.38.1
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