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* [PATCH v3] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator
@ 2019-04-12 20:37 Patrick Venture
  2019-04-12 22:15 ` Guenter Roeck
  0 siblings, 1 reply; 3+ messages in thread
From: Patrick Venture @ 2019-04-12 20:37 UTC (permalink / raw)
  To: venture, jdelvare, linux, corbet
  Cc: Maxim Sloyko, linux-hwmon, linux-doc, linux-kernel

From: Maxim Sloyko <maxims@google.com>

Add the pmbus driver for the Infineon ir38064 voltage regulator.

VOUT_MODE is not supported by the device.  The driver fakes linear16
mode with exponent value -8.

The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
this driver does not enable them.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Signed-off-by: Patrick Venture <venture@google.com>
---
v3:
 - Updated commit message to indicate behaviors.
v2:
 - Cleaned up weird tabbing behavior in doc.
v1:
 - Initial patchset.
---
 Documentation/hwmon/ir38064   | 64 +++++++++++++++++++++++++++++++++++
 drivers/hwmon/pmbus/Kconfig   |  9 +++++
 drivers/hwmon/pmbus/Makefile  |  1 +
 drivers/hwmon/pmbus/ir38064.c | 60 ++++++++++++++++++++++++++++++++
 4 files changed, 134 insertions(+)
 create mode 100644 Documentation/hwmon/ir38064
 create mode 100644 drivers/hwmon/pmbus/ir38064.c

diff --git a/Documentation/hwmon/ir38064 b/Documentation/hwmon/ir38064
new file mode 100644
index 0000000000000..618779a329da0
--- /dev/null
+++ b/Documentation/hwmon/ir38064
@@ -0,0 +1,64 @@
+Kernel driver ir38064
+=====================
+
+Supported chips:
+  * Infineon IR38064
+    Prefix: 'ir38064'
+    Addresses scanned: -
+    Datasheet: Publicly available at the Infineon webiste
+      https://www.infineon.com/dgdl/Infineon-IR38064MTRPBF-DS-v03_07-EN.pdf?fileId=5546d462584d1d4a0158db0d9efb67ca
+
+Datasheet is not publicly available.
+
+
+Authors:
+        Maxim Sloyko <maxims@google.com>
+        Patrick Venture <venture@google.com>
+
+Description
+-----------
+
+IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter.
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Sysfs attributes
+----------------
+
+curr1_label		"iout1"
+curr1_input		Measured output current
+curr1_crit		Critical maximum current
+curr1_crit_alarm	Current critical high alarm
+curr1_max		Maximum current
+curr1_max_alarm	Current high alarm
+
+in1_label		"vin"
+in1_input		Measured input voltage
+in1_crit		Critical maximum input voltage
+in1_crit_alarm		Input voltage critical high alarm
+in1_min		Minimum input voltage
+in1_min_alarm		Input voltage low alarm
+
+in2_label		"vout1"
+in2_input		Measured output voltage
+in2_lcrit		Critical minimum output voltage
+in2_lcrit_alarm	Output voltage critical low alarm
+in2_crit		Critical maximum output voltage
+in2_crit_alarm		Output voltage critical high alarm
+in2_max		Maximum output voltage
+in2_max_alarm		Output voltage high alarm
+in2_min		Minimum output voltage
+in2_min_alarm		Output voltage low alarm
+
+power1_label		"pout1"
+power1_input		Measured output power
+
+temp1_input		Measured temperature
+temp1_crit		Critical high temperature
+temp1_crit_alarm	Chip temperature critical high alarm
+temp1_max		Maximum temperature
+temp1_max_alarm	Chip temperature high alarm
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 629cb45f8557a..de87abab990e5 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -54,6 +54,15 @@ config SENSORS_IR35221
 	  This driver can also be built as a module. If so, the module will
 	  be called ir35521.
 
+config SENSORS_IR38064
+	tristate "Infineon IR38064"
+	help
+	  If you say yes here you get hardware monitoring support for Infineon
+	  IR38064.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ir38064.
+
 config SENSORS_LM25066
 	tristate "National Semiconductor LM25066 and compatibles"
 	help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index ea0e39518c216..7d1fa6b3c8c93 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_PMBUS)	+= pmbus.o
 obj-$(CONFIG_SENSORS_ADM1275)	+= adm1275.o
 obj-$(CONFIG_SENSORS_IBM_CFFPS)	+= ibm-cffps.o
 obj-$(CONFIG_SENSORS_IR35221)	+= ir35221.o
+obj-$(CONFIG_SENSORS_IR38064)	+= ir38064.o
 obj-$(CONFIG_SENSORS_LM25066)	+= lm25066.o
 obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
 obj-$(CONFIG_SENSORS_LTC3815)	+= ltc3815.o
diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c
new file mode 100644
index 0000000000000..4b957ebb6fa71
--- /dev/null
+++ b/drivers/hwmon/pmbus/ir38064.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for Infineon IR38064
+ *
+ * Copyright (c) 2017 Google Inc
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info ir38064_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = linear,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_CURRENT_OUT] = linear,
+	.format[PSC_POWER] = linear,
+	.format[PSC_TEMPERATURE] = linear,
+	.m[PSC_VOLTAGE_OUT] = 256,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = 0,
+	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	    | PMBUS_HAVE_POUT,
+};
+
+static int ir38064_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &ir38064_info);
+}
+
+static const struct i2c_device_id ir38064_id[] = {
+	{"ir38064", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, ir38064_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ir38064_driver = {
+	.driver = {
+		   .name = "ir38064",
+		   },
+	.probe = ir38064_probe,
+	.remove = pmbus_do_remove,
+	.id_table = ir38064_id,
+};
+
+module_i2c_driver(ir38064_driver);
+
+MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>");
+MODULE_DESCRIPTION("PMBus driver for Infineon IR38064");
+MODULE_LICENSE("GPL");
-- 
2.21.0.392.gf8f6787159e-goog


^ permalink raw reply related	[flat|nested] 3+ messages in thread
* Re: [PATCH v3] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator
  2019-04-12 20:37 [PATCH v3] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator Patrick Venture
@ 2019-04-12 22:15 ` Guenter Roeck
  2019-04-12 23:30   ` Patrick Venture
  0 siblings, 1 reply; 3+ messages in thread
From: Guenter Roeck @ 2019-04-12 22:15 UTC (permalink / raw)
  To: Patrick Venture, jdelvare, corbet
  Cc: Maxim Sloyko, linux-hwmon, linux-doc, linux-kernel

On 4/12/19 1:37 PM, Patrick Venture wrote:
> From: Maxim Sloyko <maxims@google.com>
> 
> Add the pmbus driver for the Infineon ir38064 voltage regulator.
> 
> VOUT_MODE is not supported by the device.  The driver fakes linear16
> mode with exponent value -8.
> 
> The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
> this driver does not enable them.
> 

I meant to add this into the driver as comment (where people can see it
going forward). Never mind, I'll apply the patch and add it myself.

Guenter

> Signed-off-by: Maxim Sloyko <maxims@google.com>
> Signed-off-by: Patrick Venture <venture@google.com>
> ---
> v3:
>   - Updated commit message to indicate behaviors.
> v2:
>   - Cleaned up weird tabbing behavior in doc.
> v1:
>   - Initial patchset.
> ---
>   Documentation/hwmon/ir38064   | 64 +++++++++++++++++++++++++++++++++++
>   drivers/hwmon/pmbus/Kconfig   |  9 +++++
>   drivers/hwmon/pmbus/Makefile  |  1 +
>   drivers/hwmon/pmbus/ir38064.c | 60 ++++++++++++++++++++++++++++++++
>   4 files changed, 134 insertions(+)
>   create mode 100644 Documentation/hwmon/ir38064
>   create mode 100644 drivers/hwmon/pmbus/ir38064.c
> 
> diff --git a/Documentation/hwmon/ir38064 b/Documentation/hwmon/ir38064
> new file mode 100644
> index 0000000000000..618779a329da0
> --- /dev/null
> +++ b/Documentation/hwmon/ir38064
> @@ -0,0 +1,64 @@
> +Kernel driver ir38064
> +=====================
> +
> +Supported chips:
> +  * Infineon IR38064
> +    Prefix: 'ir38064'
> +    Addresses scanned: -
> +    Datasheet: Publicly available at the Infineon webiste
> +      https://www.infineon.com/dgdl/Infineon-IR38064MTRPBF-DS-v03_07-EN.pdf?fileId=5546d462584d1d4a0158db0d9efb67ca
> +
> +Datasheet is not publicly available.
> +
> +
> +Authors:
> +        Maxim Sloyko <maxims@google.com>
> +        Patrick Venture <venture@google.com>
> +
> +Description
> +-----------
> +
> +IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter.
> +
> +Usage Notes
> +-----------
> +
> +This driver does not probe for PMBus devices. You will have to instantiate
> +devices explicitly.
> +
> +Sysfs attributes
> +----------------
> +
> +curr1_label		"iout1"
> +curr1_input		Measured output current
> +curr1_crit		Critical maximum current
> +curr1_crit_alarm	Current critical high alarm
> +curr1_max		Maximum current
> +curr1_max_alarm	Current high alarm
> +
> +in1_label		"vin"
> +in1_input		Measured input voltage
> +in1_crit		Critical maximum input voltage
> +in1_crit_alarm		Input voltage critical high alarm
> +in1_min		Minimum input voltage
> +in1_min_alarm		Input voltage low alarm
> +
> +in2_label		"vout1"
> +in2_input		Measured output voltage
> +in2_lcrit		Critical minimum output voltage
> +in2_lcrit_alarm	Output voltage critical low alarm
> +in2_crit		Critical maximum output voltage
> +in2_crit_alarm		Output voltage critical high alarm
> +in2_max		Maximum output voltage
> +in2_max_alarm		Output voltage high alarm
> +in2_min		Minimum output voltage
> +in2_min_alarm		Output voltage low alarm
> +
> +power1_label		"pout1"
> +power1_input		Measured output power
> +
> +temp1_input		Measured temperature
> +temp1_crit		Critical high temperature
> +temp1_crit_alarm	Chip temperature critical high alarm
> +temp1_max		Maximum temperature
> +temp1_max_alarm	Chip temperature high alarm
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index 629cb45f8557a..de87abab990e5 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -54,6 +54,15 @@ config SENSORS_IR35221
>   	  This driver can also be built as a module. If so, the module will
>   	  be called ir35521.
>   
> +config SENSORS_IR38064
> +	tristate "Infineon IR38064"
> +	help
> +	  If you say yes here you get hardware monitoring support for Infineon
> +	  IR38064.
> +
> +	  This driver can also be built as a module. If so, the module will
> +	  be called ir38064.
> +
>   config SENSORS_LM25066
>   	tristate "National Semiconductor LM25066 and compatibles"
>   	help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index ea0e39518c216..7d1fa6b3c8c93 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_PMBUS)	+= pmbus.o
>   obj-$(CONFIG_SENSORS_ADM1275)	+= adm1275.o
>   obj-$(CONFIG_SENSORS_IBM_CFFPS)	+= ibm-cffps.o
>   obj-$(CONFIG_SENSORS_IR35221)	+= ir35221.o
> +obj-$(CONFIG_SENSORS_IR38064)	+= ir38064.o
>   obj-$(CONFIG_SENSORS_LM25066)	+= lm25066.o
>   obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
>   obj-$(CONFIG_SENSORS_LTC3815)	+= ltc3815.o
> diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c
> new file mode 100644
> index 0000000000000..4b957ebb6fa71
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/ir38064.c
> @@ -0,0 +1,60 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Hardware monitoring driver for Infineon IR38064
> + *
> + * Copyright (c) 2017 Google Inc
> + *
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include "pmbus.h"
> +
> +static struct pmbus_driver_info ir38064_info = {
> +	.pages = 1,
> +	.format[PSC_VOLTAGE_IN] = linear,
> +	.format[PSC_VOLTAGE_OUT] = direct,
> +	.format[PSC_CURRENT_OUT] = linear,
> +	.format[PSC_POWER] = linear,
> +	.format[PSC_TEMPERATURE] = linear,
> +	.m[PSC_VOLTAGE_OUT] = 256,
> +	.b[PSC_VOLTAGE_OUT] = 0,
> +	.R[PSC_VOLTAGE_OUT] = 0,
> +	.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
> +	    | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
> +	    | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
> +	    | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
> +	    | PMBUS_HAVE_POUT,
> +};
> +
> +static int ir38064_probe(struct i2c_client *client,
> +			 const struct i2c_device_id *id)
> +{
> +	return pmbus_do_probe(client, id, &ir38064_info);
> +}
> +
> +static const struct i2c_device_id ir38064_id[] = {
> +	{"ir38064", 0},
> +	{}
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, ir38064_id);
> +
> +/* This is the driver that will be inserted */
> +static struct i2c_driver ir38064_driver = {
> +	.driver = {
> +		   .name = "ir38064",
> +		   },
> +	.probe = ir38064_probe,
> +	.remove = pmbus_do_remove,
> +	.id_table = ir38064_id,
> +};
> +
> +module_i2c_driver(ir38064_driver);
> +
> +MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>");
> +MODULE_DESCRIPTION("PMBus driver for Infineon IR38064");
> +MODULE_LICENSE("GPL");
> 


^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: [PATCH v3] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator
  2019-04-12 22:15 ` Guenter Roeck
@ 2019-04-12 23:30   ` Patrick Venture
  0 siblings, 0 replies; 3+ messages in thread
From: Patrick Venture @ 2019-04-12 23:30 UTC (permalink / raw)
  To: Guenter Roeck
  Cc: jdelvare, corbet, Maxim Sloyko, linux-hwmon, linux-doc,
	Linux Kernel Mailing List

On Fri, Apr 12, 2019 at 3:15 PM Guenter Roeck <linux@roeck-us.net> wrote:
>
> On 4/12/19 1:37 PM, Patrick Venture wrote:
> > From: Maxim Sloyko <maxims@google.com>
> >
> > Add the pmbus driver for the Infineon ir38064 voltage regulator.
> >
> > VOUT_MODE is not supported by the device.  The driver fakes linear16
> > mode with exponent value -8.
> >
> > The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
> > this driver does not enable them.
> >
>
> I meant to add this into the driver as comment (where people can see it
> going forward). Never mind, I'll apply the patch and add it myself.

Sorry, I definitely misunderstood your intent.  Thanks for handling it.

>
> Guenter
>
> > Signed-off-by: Maxim Sloyko <maxims@google.com>
> > Signed-off-by: Patrick Venture <venture@google.com>
> > ---
> > v3:
> >   - Updated commit message to indicate behaviors.
> > v2:
> >   - Cleaned up weird tabbing behavior in doc.
> > v1:
> >   - Initial patchset.
> > ---
> >   Documentation/hwmon/ir38064   | 64 +++++++++++++++++++++++++++++++++++
> >   drivers/hwmon/pmbus/Kconfig   |  9 +++++
> >   drivers/hwmon/pmbus/Makefile  |  1 +
> >   drivers/hwmon/pmbus/ir38064.c | 60 ++++++++++++++++++++++++++++++++
> >   4 files changed, 134 insertions(+)
> >   create mode 100644 Documentation/hwmon/ir38064
> >   create mode 100644 drivers/hwmon/pmbus/ir38064.c
> >
> > diff --git a/Documentation/hwmon/ir38064 b/Documentation/hwmon/ir38064
> > new file mode 100644
> > index 0000000000000..618779a329da0
> > --- /dev/null
> > +++ b/Documentation/hwmon/ir38064
> > @@ -0,0 +1,64 @@
> > +Kernel driver ir38064
> > +=====================
> > +
> > +Supported chips:
> > +  * Infineon IR38064
> > +    Prefix: 'ir38064'
> > +    Addresses scanned: -
> > +    Datasheet: Publicly available at the Infineon webiste
> > +      https://www.infineon.com/dgdl/Infineon-IR38064MTRPBF-DS-v03_07-EN.pdf?fileId=5546d462584d1d4a0158db0d9efb67ca
> > +
> > +Datasheet is not publicly available.
> > +
> > +
> > +Authors:
> > +        Maxim Sloyko <maxims@google.com>
> > +        Patrick Venture <venture@google.com>
> > +
> > +Description
> > +-----------
> > +
> > +IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter.
> > +
> > +Usage Notes
> > +-----------
> > +
> > +This driver does not probe for PMBus devices. You will have to instantiate
> > +devices explicitly.
> > +
> > +Sysfs attributes
> > +----------------
> > +
> > +curr1_label          "iout1"
> > +curr1_input          Measured output current
> > +curr1_crit           Critical maximum current
> > +curr1_crit_alarm     Current critical high alarm
> > +curr1_max            Maximum current
> > +curr1_max_alarm      Current high alarm
> > +
> > +in1_label            "vin"
> > +in1_input            Measured input voltage
> > +in1_crit             Critical maximum input voltage
> > +in1_crit_alarm               Input voltage critical high alarm
> > +in1_min              Minimum input voltage
> > +in1_min_alarm                Input voltage low alarm
> > +
> > +in2_label            "vout1"
> > +in2_input            Measured output voltage
> > +in2_lcrit            Critical minimum output voltage
> > +in2_lcrit_alarm      Output voltage critical low alarm
> > +in2_crit             Critical maximum output voltage
> > +in2_crit_alarm               Output voltage critical high alarm
> > +in2_max              Maximum output voltage
> > +in2_max_alarm                Output voltage high alarm
> > +in2_min              Minimum output voltage
> > +in2_min_alarm                Output voltage low alarm
> > +
> > +power1_label         "pout1"
> > +power1_input         Measured output power
> > +
> > +temp1_input          Measured temperature
> > +temp1_crit           Critical high temperature
> > +temp1_crit_alarm     Chip temperature critical high alarm
> > +temp1_max            Maximum temperature
> > +temp1_max_alarm      Chip temperature high alarm
> > diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> > index 629cb45f8557a..de87abab990e5 100644
> > --- a/drivers/hwmon/pmbus/Kconfig
> > +++ b/drivers/hwmon/pmbus/Kconfig
> > @@ -54,6 +54,15 @@ config SENSORS_IR35221
> >         This driver can also be built as a module. If so, the module will
> >         be called ir35521.
> >
> > +config SENSORS_IR38064
> > +     tristate "Infineon IR38064"
> > +     help
> > +       If you say yes here you get hardware monitoring support for Infineon
> > +       IR38064.
> > +
> > +       This driver can also be built as a module. If so, the module will
> > +       be called ir38064.
> > +
> >   config SENSORS_LM25066
> >       tristate "National Semiconductor LM25066 and compatibles"
> >       help
> > diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> > index ea0e39518c216..7d1fa6b3c8c93 100644
> > --- a/drivers/hwmon/pmbus/Makefile
> > +++ b/drivers/hwmon/pmbus/Makefile
> > @@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_PMBUS)   += pmbus.o
> >   obj-$(CONFIG_SENSORS_ADM1275)       += adm1275.o
> >   obj-$(CONFIG_SENSORS_IBM_CFFPS)     += ibm-cffps.o
> >   obj-$(CONFIG_SENSORS_IR35221)       += ir35221.o
> > +obj-$(CONFIG_SENSORS_IR38064)        += ir38064.o
> >   obj-$(CONFIG_SENSORS_LM25066)       += lm25066.o
> >   obj-$(CONFIG_SENSORS_LTC2978)       += ltc2978.o
> >   obj-$(CONFIG_SENSORS_LTC3815)       += ltc3815.o
> > diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c
> > new file mode 100644
> > index 0000000000000..4b957ebb6fa71
> > --- /dev/null
> > +++ b/drivers/hwmon/pmbus/ir38064.c
> > @@ -0,0 +1,60 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * Hardware monitoring driver for Infineon IR38064
> > + *
> > + * Copyright (c) 2017 Google Inc
> > + *
> > + */
> > +
> > +#include <linux/err.h>
> > +#include <linux/i2c.h>
> > +#include <linux/init.h>
> > +#include <linux/kernel.h>
> > +#include <linux/module.h>
> > +#include "pmbus.h"
> > +
> > +static struct pmbus_driver_info ir38064_info = {
> > +     .pages = 1,
> > +     .format[PSC_VOLTAGE_IN] = linear,
> > +     .format[PSC_VOLTAGE_OUT] = direct,
> > +     .format[PSC_CURRENT_OUT] = linear,
> > +     .format[PSC_POWER] = linear,
> > +     .format[PSC_TEMPERATURE] = linear,
> > +     .m[PSC_VOLTAGE_OUT] = 256,
> > +     .b[PSC_VOLTAGE_OUT] = 0,
> > +     .R[PSC_VOLTAGE_OUT] = 0,
> > +     .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
> > +         | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
> > +         | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
> > +         | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
> > +         | PMBUS_HAVE_POUT,
> > +};
> > +
> > +static int ir38064_probe(struct i2c_client *client,
> > +                      const struct i2c_device_id *id)
> > +{
> > +     return pmbus_do_probe(client, id, &ir38064_info);
> > +}
> > +
> > +static const struct i2c_device_id ir38064_id[] = {
> > +     {"ir38064", 0},
> > +     {}
> > +};
> > +
> > +MODULE_DEVICE_TABLE(i2c, ir38064_id);
> > +
> > +/* This is the driver that will be inserted */
> > +static struct i2c_driver ir38064_driver = {
> > +     .driver = {
> > +                .name = "ir38064",
> > +                },
> > +     .probe = ir38064_probe,
> > +     .remove = pmbus_do_remove,
> > +     .id_table = ir38064_id,
> > +};
> > +
> > +module_i2c_driver(ir38064_driver);
> > +
> > +MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>");
> > +MODULE_DESCRIPTION("PMBus driver for Infineon IR38064");
> > +MODULE_LICENSE("GPL");
> >
>

^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-04-12 23:30 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-04-12 20:37 [PATCH v3] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator Patrick Venture
2019-04-12 22:15 ` Guenter Roeck
2019-04-12 23:30   ` Patrick Venture

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