* Re: [PATCH v5] hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator
[not found] <f8766ea1-b4ee-f298-a5a4-dc83f9a54617@gmail.com>
@ 2020-11-27 16:10 ` Guenter Roeck
2020-11-30 7:46 ` Charles
0 siblings, 1 reply; 3+ messages in thread
From: Guenter Roeck @ 2020-11-27 16:10 UTC (permalink / raw)
To: Charles; +Cc: linux-kernel, linux-hwmon, alan
On Fri, Nov 27, 2020 at 09:59:01AM +0800, Charles wrote:
> Add the pmbus driver for the STMicroelectronics pm6764 voltage regulator.
>
> the output voltage use the MFR_READ_VOUT 0xD4
> vout value returned is linear11
>
> Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
This patch (again) didn't make it to any of the mailing lists.
Please try to find out why this is the case. I usually pick up
patches from https://patchwork.kernel.org/project/linux-hwmon/list/,
and may easily miss a patch if I can't find it there.
> ---
>
> v5:
> - Add MAINTAINERS
> - Add a reference into trivial-devices.yaml
> v4:
> - Add pm6764tr to Documentation/hwmon/index.rst.
> v3:
> - Add Documentation(Documentation/hwmon/pm6764tr.rst).
> - Fix include order.
> v2:
> - Fix formatting.
> - Remove pmbus_do_remove.
> - Change from .probe to .probe_new.
> v1:
> - Initial patchset.
>
> ---
>
> .../devicetree/bindings/trivial-devices.yaml | 2 +
> Documentation/hwmon/index.rst | 1 +
> Documentation/hwmon/pm6764tr.rst | 33 ++++++++
> MAINTAINERS | 7 ++
> drivers/hwmon/pmbus/Kconfig | 9 +++
> drivers/hwmon/pmbus/Makefile | 1 +
> drivers/hwmon/pmbus/pm6764tr.c | 76 +++++++++++++++++++
> 7 files changed, 129 insertions(+)
> create mode 100644 Documentation/hwmon/pm6764tr.rst
> create mode 100644 drivers/hwmon/pmbus/pm6764tr.c
>
> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
> index ab623ba930d5..cdd7bdb6abbb 100644
> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> @@ -348,6 +348,8 @@ properties:
> - socionext,synquacer-tpm-mmio
> # i2c serial eeprom (24cxx)
> - st,24c256
> + # SMBus/I2C Voltage Regulator
> + - st,pm6764tr
> # Ambient Light Sensor with SMBUS/Two Wire Serial Interface
> - taos,tsl2550
> # 8-Channels, 12-bit ADC
This, like all devicetre changes, needs to be a separate patch.
Also, please make sure to copy dt maintainers and the dt mailing list
when you send that patch.
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index b797db738225..1bbd05e41de4 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -144,6 +144,7 @@ Hardware Monitoring Kernel Drivers
> pc87360
> pc87427
> pcf8591
> + pm6764tr
> pmbus
> powr1220
> pxe1610
> diff --git a/Documentation/hwmon/pm6764tr.rst b/Documentation/hwmon/pm6764tr.rst
> new file mode 100644
> index 000000000000..5e8092e39297
> --- /dev/null
> +++ b/Documentation/hwmon/pm6764tr.rst
> @@ -0,0 +1,33 @@
> +.. SPDX-License-Identifier: GPL-2.0-only
> +
> +Kernel driver pm6764tr
> +======================
> +
> +Supported chips:
> +
> + * ST PM6764TR
> +
> + Prefix: 'pm6764tr'
> +
> + Addresses scanned: -
> +
> + Datasheet: http://www.st.com/resource/en/data_brief/pm6764.pdf
> +
> +Authors:
> + <hsu.yungteng@gmail.com>
> +
> +Description:
> +------------
> +
> +This driver supports the STMicroelectronics PM6764TR chip. The PM6764TR is a high
> +performance digital controller designed to power Intel’s VR12.5 processors and memories.
> +
Unrelated side note: I understand this means that you are forced to keep the
datasheet under wraps, which in turn means I can not suggest functionality
improvements since I don't have access to it. If the chip happens to support
per-rail telemetry, you might want to consider adding support for that in a
follow-up patch.
> +The device utilizes digital technology to implement all control and power management
> +functions to provide maximum flexibility and performance. The NVM is embedded to store
> +custom configurations. The PM6764TR device features up to 4-phase programmable operation.
> +
> +The PM6764TR supports power state transitions featuring VFDE, and programmable DPM
> +maintaining the best efficiency over all loading conditions without compromising transient
> +response. The device assures fast and independent protectionagainstload overcurrent,
"protectionagainstload" -> "protection against load"
> +under/overvoltage and feedback disconnections.
> +
Drop empty line at end.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 94ac10a153c7..a3fea132c4ed 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -13904,6 +13904,13 @@ M: Logan Gunthorpe <logang@deltatee.com>
> S: Maintained
> F: drivers/dma/plx_dma.c
Add empty line.
> +PM6764TR DRIVER
> +M: Charles Hsu <hsu.yungteng@gmail.com>
> +L: linux-hwmon@vger.kernel.org
> +S: Maintained
> +F: Documentation/hwmon/pm6764tr.rst
> +F: drivers/hwmon/pmbus/pm6764tr.c
> +
> PM-GRAPH UTILITY
> M: "Todd E Brandt" <todd.e.brandt@linux.intel.com>
> L: linux-pm@vger.kernel.org
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index a25faf69fce3..9c846facce9f 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -220,6 +220,15 @@ config SENSORS_MP2975
> This driver can also be built as a module. If so, the module will
> be called mp2975.
Add empty line.
> +config SENSORS_PM6764TR
> + tristate "ST PM6764TR"
> + help
> + If you say yes here you get hardware monitoring support for ST
> + PM6764TR.
> +
> + This driver can also be built as a module. If so, the module will
> + be called pm6764tr.
> +
> config SENSORS_PXE1610
> tristate "Infineon PXE1610"
> help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index 4c97ad0bd791..31ebdef5d4a6 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -25,6 +25,7 @@ obj-$(CONFIG_SENSORS_MAX31785) += max31785.o
> obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
> obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
> obj-$(CONFIG_SENSORS_MP2975) += mp2975.o
> +obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o
> obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
> obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
> obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> diff --git a/drivers/hwmon/pmbus/pm6764tr.c b/drivers/hwmon/pmbus/pm6764tr.c
> new file mode 100644
> index 000000000000..70747c21c66e
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/pm6764tr.c
> @@ -0,0 +1,76 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Hardware monitoring driver for STMicroelectronics digital controller PM6764TR
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/pmbus.h>
> +#include "pmbus.h"
> +
> +#define PM6764TR_PMBUS_READ_VOUT 0xD4
> +
> +static int pm6764tr_read_word_data(struct i2c_client *client, int page, int reg)
> +{
> + int ret;
> +
> + switch (reg) {
> + case PMBUS_VIRT_READ_VMON:
> + ret = pmbus_read_word_data(client, page, PM6764TR_PMBUS_READ_VOUT);
> + break;
> + default:
> + ret = -ENODATA;
> + break;
> + }
> + return ret;
> +}
> +
> +static struct pmbus_driver_info pm6764tr_info = {
> + .pages = 1,
> + .format[PSC_VOLTAGE_IN] = linear,
> + .format[PSC_VOLTAGE_OUT] = vid,
> + .format[PSC_TEMPERATURE] = linear,
> + .format[PSC_CURRENT_OUT] = linear,
> + .format[PSC_POWER] = linear,
> + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_PIN |
> + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | PMBUS_HAVE_VMON |
> + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT |
> + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
> + .read_word_data = pm6764tr_read_word_data,
> +};
> +
> +static int pm6764tr_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + return pmbus_do_probe(client, id, &pm6764tr_info);
> +}
> +
> +static const struct i2c_device_id pm6764tr_id[] = {
> + {"pm6764tr", 0},
> + {}
> +};
> +MODULE_DEVICE_TABLE(i2c, pm6764tr_id);
> +
> +static const struct of_device_id pm6764tr_of_match[] = {
> + {.compatible = "st,pm6764tr"},
> + {}
> +};
> +
> +/* This is the driver that will be inserted */
> +static struct i2c_driver pm6764tr_driver = {
> + .driver = {
> + .name = "pm6764tr",
> + .of_match_table = of_match_ptr(pm6764tr_of_match),
> + },
> + .probe_new = pm6764tr_probe,
> + .id_table = pm6764tr_id,
> +};
> +
> +module_i2c_driver(pm6764tr_driver);
> +
> +MODULE_AUTHOR("Charles Hsu");
> +MODULE_DESCRIPTION("PMBus driver for ST PM6764TR");
> +MODULE_LICENSE("GPL");
> --
> 2.25.1
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v5] hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator
2020-11-27 16:10 ` [PATCH v5] hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator Guenter Roeck
@ 2020-11-30 7:46 ` Charles
2020-11-30 14:59 ` Guenter Roeck
0 siblings, 1 reply; 3+ messages in thread
From: Charles @ 2020-11-30 7:46 UTC (permalink / raw)
To: Guenter Roeck; +Cc: linux-kernel, linux-hwmon, alan
On 28/11/2020 上午12:10, Guenter Roeck wrote:
> On Fri, Nov 27, 2020 at 09:59:01AM +0800, Charles wrote:
>> Add the pmbus driver for the STMicroelectronics pm6764 voltage regulator.
>>
>> the output voltage use the MFR_READ_VOUT 0xD4
>> vout value returned is linear11
>>
>> Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
> This patch (again) didn't make it to any of the mailing lists.
> Please try to find out why this is the case. I usually pick up
> patches from https://patchwork.kernel.org/project/linux-hwmon/list/,
> and may easily miss a patch if I can't find it there.
>
>> ---
>>
>> v5:
>> - Add MAINTAINERS
>> - Add a reference into trivial-devices.yaml
>> v4:
>> - Add pm6764tr to Documentation/hwmon/index.rst.
>> v3:
>> - Add Documentation(Documentation/hwmon/pm6764tr.rst).
>> - Fix include order.
>> v2:
>> - Fix formatting.
>> - Remove pmbus_do_remove.
>> - Change from .probe to .probe_new.
>> v1:
>> - Initial patchset.
>>
>> ---
>>
>> .../devicetree/bindings/trivial-devices.yaml | 2 +
>> Documentation/hwmon/index.rst | 1 +
>> Documentation/hwmon/pm6764tr.rst | 33 ++++++++
>> MAINTAINERS | 7 ++
>> drivers/hwmon/pmbus/Kconfig | 9 +++
>> drivers/hwmon/pmbus/Makefile | 1 +
>> drivers/hwmon/pmbus/pm6764tr.c | 76 +++++++++++++++++++
>> 7 files changed, 129 insertions(+)
>> create mode 100644 Documentation/hwmon/pm6764tr.rst
>> create mode 100644 drivers/hwmon/pmbus/pm6764tr.c
>>
>> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
>> index ab623ba930d5..cdd7bdb6abbb 100644
>> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
>> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
>> @@ -348,6 +348,8 @@ properties:
>> - socionext,synquacer-tpm-mmio
>> # i2c serial eeprom (24cxx)
>> - st,24c256
>> + # SMBus/I2C Voltage Regulator
>> + - st,pm6764tr
>> # Ambient Light Sensor with SMBUS/Two Wire Serial Interface
>> - taos,tsl2550
>> # 8-Channels, 12-bit ADC
> This, like all devicetre changes, needs to be a separate patch.
> Also, please make sure to copy dt maintainers and the dt mailing list
> when you send that patch.
Thank you for your suggestions.
I will send that patch as soon as possible.
>> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
>> index b797db738225..1bbd05e41de4 100644
>> --- a/Documentation/hwmon/index.rst
>> +++ b/Documentation/hwmon/index.rst
>> @@ -144,6 +144,7 @@ Hardware Monitoring Kernel Drivers
>> pc87360
>> pc87427
>> pcf8591
>> + pm6764tr
>> pmbus
>> powr1220
>> pxe1610
>> diff --git a/Documentation/hwmon/pm6764tr.rst b/Documentation/hwmon/pm6764tr.rst
>> new file mode 100644
>> index 000000000000..5e8092e39297
>> --- /dev/null
>> +++ b/Documentation/hwmon/pm6764tr.rst
>> @@ -0,0 +1,33 @@
>> +.. SPDX-License-Identifier: GPL-2.0-only
>> +
>> +Kernel driver pm6764tr
>> +======================
>> +
>> +Supported chips:
>> +
>> + * ST PM6764TR
>> +
>> + Prefix: 'pm6764tr'
>> +
>> + Addresses scanned: -
>> +
>> + Datasheet: http://www.st.com/resource/en/data_brief/pm6764.pdf
>> +
>> +Authors:
>> + <hsu.yungteng@gmail.com>
>> +
>> +Description:
>> +------------
>> +
>> +This driver supports the STMicroelectronics PM6764TR chip. The PM6764TR is a high
>> +performance digital controller designed to power Intel’s VR12.5 processors and memories.
>> +
> Unrelated side note: I understand this means that you are forced to keep the
> datasheet under wraps, which in turn means I can not suggest functionality
> improvements since I don't have access to it. If the chip happens to support
> per-rail telemetry, you might want to consider adding support for that in a
> follow-up patch.
>
>> +The device utilizes digital technology to implement all control and power management
>> +functions to provide maximum flexibility and performance. The NVM is embedded to store
>> +custom configurations. The PM6764TR device features up to 4-phase programmable operation.
>> +
>> +The PM6764TR supports power state transitions featuring VFDE, and programmable DPM
>> +maintaining the best efficiency over all loading conditions without compromising transient
>> +response. The device assures fast and independent protectionagainstload overcurrent,
> "protectionagainstload" -> "protection against load"
>
>> +under/overvoltage and feedback disconnections.
>> +
> Drop empty line at end.
>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 94ac10a153c7..a3fea132c4ed 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -13904,6 +13904,13 @@ M: Logan Gunthorpe <logang@deltatee.com>
>> S: Maintained
>> F: drivers/dma/plx_dma.c
> Add empty line.
There is an empty line here,
Should I add one more empty line?
>> +PM6764TR DRIVER
>> +M: Charles Hsu <hsu.yungteng@gmail.com>
>> +L: linux-hwmon@vger.kernel.org
>> +S: Maintained
>> +F: Documentation/hwmon/pm6764tr.rst
>> +F: drivers/hwmon/pmbus/pm6764tr.c
>> +
>> PM-GRAPH UTILITY
>> M: "Todd E Brandt" <todd.e.brandt@linux.intel.com>
>> L: linux-pm@vger.kernel.org
>> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
>> index a25faf69fce3..9c846facce9f 100644
>> --- a/drivers/hwmon/pmbus/Kconfig
>> +++ b/drivers/hwmon/pmbus/Kconfig
>> @@ -220,6 +220,15 @@ config SENSORS_MP2975
>> This driver can also be built as a module. If so, the module will
>> be called mp2975.
> Add empty line.
Same as above.
>> +config SENSORS_PM6764TR
>> + tristate "ST PM6764TR"
>> + help
>> + If you say yes here you get hardware monitoring support for ST
>> + PM6764TR.
>> +
>> + This driver can also be built as a module. If so, the module will
>> + be called pm6764tr.
>> +
>> config SENSORS_PXE1610
>> tristate "Infineon PXE1610"
>> help
>> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
>> index 4c97ad0bd791..31ebdef5d4a6 100644
>> --- a/drivers/hwmon/pmbus/Makefile
>> +++ b/drivers/hwmon/pmbus/Makefile
>> @@ -25,6 +25,7 @@ obj-$(CONFIG_SENSORS_MAX31785) += max31785.o
>> obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
>> obj-$(CONFIG_SENSORS_MAX8688) += max8688.o
>> obj-$(CONFIG_SENSORS_MP2975) += mp2975.o
>> +obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o
>> obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o
>> obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
>> obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
>> diff --git a/drivers/hwmon/pmbus/pm6764tr.c b/drivers/hwmon/pmbus/pm6764tr.c
>> new file mode 100644
>> index 000000000000..70747c21c66e
>> --- /dev/null
>> +++ b/drivers/hwmon/pmbus/pm6764tr.c
>> @@ -0,0 +1,76 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Hardware monitoring driver for STMicroelectronics digital controller PM6764TR
>> + */
>> +
>> +#include <linux/err.h>
>> +#include <linux/i2c.h>
>> +#include <linux/init.h>
>> +#include <linux/kernel.h>
>> +#include <linux/module.h>
>> +#include <linux/pmbus.h>
>> +#include "pmbus.h"
>> +
>> +#define PM6764TR_PMBUS_READ_VOUT 0xD4
>> +
>> +static int pm6764tr_read_word_data(struct i2c_client *client, int page, int reg)
>> +{
>> + int ret;
>> +
>> + switch (reg) {
>> + case PMBUS_VIRT_READ_VMON:
>> + ret = pmbus_read_word_data(client, page, PM6764TR_PMBUS_READ_VOUT);
>> + break;
>> + default:
>> + ret = -ENODATA;
>> + break;
>> + }
>> + return ret;
>> +}
>> +
>> +static struct pmbus_driver_info pm6764tr_info = {
>> + .pages = 1,
>> + .format[PSC_VOLTAGE_IN] = linear,
>> + .format[PSC_VOLTAGE_OUT] = vid,
>> + .format[PSC_TEMPERATURE] = linear,
>> + .format[PSC_CURRENT_OUT] = linear,
>> + .format[PSC_POWER] = linear,
>> + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_PIN |
>> + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | PMBUS_HAVE_VMON |
>> + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT |
>> + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
>> + .read_word_data = pm6764tr_read_word_data,
>> +};
>> +
>> +static int pm6764tr_probe(struct i2c_client *client,
>> + const struct i2c_device_id *id)
>> +{
>> + return pmbus_do_probe(client, id, &pm6764tr_info);
>> +}
>> +
>> +static const struct i2c_device_id pm6764tr_id[] = {
>> + {"pm6764tr", 0},
>> + {}
>> +};
>> +MODULE_DEVICE_TABLE(i2c, pm6764tr_id);
>> +
>> +static const struct of_device_id pm6764tr_of_match[] = {
>> + {.compatible = "st,pm6764tr"},
>> + {}
>> +};
>> +
>> +/* This is the driver that will be inserted */
>> +static struct i2c_driver pm6764tr_driver = {
>> + .driver = {
>> + .name = "pm6764tr",
>> + .of_match_table = of_match_ptr(pm6764tr_of_match),
>> + },
>> + .probe_new = pm6764tr_probe,
>> + .id_table = pm6764tr_id,
>> +};
>> +
>> +module_i2c_driver(pm6764tr_driver);
>> +
>> +MODULE_AUTHOR("Charles Hsu");
>> +MODULE_DESCRIPTION("PMBus driver for ST PM6764TR");
>> +MODULE_LICENSE("GPL");
>> --
>> 2.25.1
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v5] hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator
2020-11-30 7:46 ` Charles
@ 2020-11-30 14:59 ` Guenter Roeck
0 siblings, 0 replies; 3+ messages in thread
From: Guenter Roeck @ 2020-11-30 14:59 UTC (permalink / raw)
To: Charles; +Cc: linux-kernel, linux-hwmon, alan
On Mon, Nov 30, 2020 at 03:46:19PM +0800, Charles wrote:
> On 28/11/2020 上午12:10, Guenter Roeck wrote:
> > On Fri, Nov 27, 2020 at 09:59:01AM +0800, Charles wrote:
> > > Add the pmbus driver for the STMicroelectronics pm6764 voltage regulator.
> > >
> > > the output voltage use the MFR_READ_VOUT 0xD4
> > > vout value returned is linear11
> > >
> > > Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com>
> > This patch (again) didn't make it to any of the mailing lists.
> > Please try to find out why this is the case. I usually pick up
> > patches from https://patchwork.kernel.org/project/linux-hwmon/list/,
> > and may easily miss a patch if I can't find it there.
> >
> > > ---
> > >
> > > v5:
> > > - Add MAINTAINERS
> > > - Add a reference into trivial-devices.yaml
> > > v4:
> > > - Add pm6764tr to Documentation/hwmon/index.rst.
> > > v3:
> > > - Add Documentation(Documentation/hwmon/pm6764tr.rst).
> > > - Fix include order.
> > > v2:
> > > - Fix formatting.
> > > - Remove pmbus_do_remove.
> > > - Change from .probe to .probe_new.
> > > v1:
> > > - Initial patchset.
> > >
> > > ---
> > >
> > > .../devicetree/bindings/trivial-devices.yaml | 2 +
> > > Documentation/hwmon/index.rst | 1 +
> > > Documentation/hwmon/pm6764tr.rst | 33 ++++++++
> > > MAINTAINERS | 7 ++
> > > drivers/hwmon/pmbus/Kconfig | 9 +++
> > > drivers/hwmon/pmbus/Makefile | 1 +
> > > drivers/hwmon/pmbus/pm6764tr.c | 76 +++++++++++++++++++
> > > 7 files changed, 129 insertions(+)
> > > create mode 100644 Documentation/hwmon/pm6764tr.rst
> > > create mode 100644 drivers/hwmon/pmbus/pm6764tr.c
> > >
> > > diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
> > > index ab623ba930d5..cdd7bdb6abbb 100644
> > > --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> > > +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> > > @@ -348,6 +348,8 @@ properties:
> > > - socionext,synquacer-tpm-mmio
> > > # i2c serial eeprom (24cxx)
> > > - st,24c256
> > > + # SMBus/I2C Voltage Regulator
> > > + - st,pm6764tr
> > > # Ambient Light Sensor with SMBUS/Two Wire Serial Interface
> > > - taos,tsl2550
> > > # 8-Channels, 12-bit ADC
> > This, like all devicetre changes, needs to be a separate patch.
> > Also, please make sure to copy dt maintainers and the dt mailing list
> > when you send that patch.
>
>
> Thank you for your suggestions.
>
> I will send that patch as soon as possible.
>
>
> > > diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> > > index b797db738225..1bbd05e41de4 100644
> > > --- a/Documentation/hwmon/index.rst
> > > +++ b/Documentation/hwmon/index.rst
> > > @@ -144,6 +144,7 @@ Hardware Monitoring Kernel Drivers
> > > pc87360
> > > pc87427
> > > pcf8591
> > > + pm6764tr
> > > pmbus
> > > powr1220
> > > pxe1610
> > > diff --git a/Documentation/hwmon/pm6764tr.rst b/Documentation/hwmon/pm6764tr.rst
> > > new file mode 100644
> > > index 000000000000..5e8092e39297
> > > --- /dev/null
> > > +++ b/Documentation/hwmon/pm6764tr.rst
> > > @@ -0,0 +1,33 @@
> > > +.. SPDX-License-Identifier: GPL-2.0-only
> > > +
> > > +Kernel driver pm6764tr
> > > +======================
> > > +
> > > +Supported chips:
> > > +
> > > + * ST PM6764TR
> > > +
> > > + Prefix: 'pm6764tr'
> > > +
> > > + Addresses scanned: -
> > > +
> > > + Datasheet: http://www.st.com/resource/en/data_brief/pm6764.pdf
> > > +
> > > +Authors:
> > > + <hsu.yungteng@gmail.com>
> > > +
> > > +Description:
> > > +------------
> > > +
> > > +This driver supports the STMicroelectronics PM6764TR chip. The PM6764TR is a high
> > > +performance digital controller designed to power Intel’s VR12.5 processors and memories.
> > > +
> > Unrelated side note: I understand this means that you are forced to keep the
> > datasheet under wraps, which in turn means I can not suggest functionality
> > improvements since I don't have access to it. If the chip happens to support
> > per-rail telemetry, you might want to consider adding support for that in a
> > follow-up patch.
> >
> > > +The device utilizes digital technology to implement all control and power management
> > > +functions to provide maximum flexibility and performance. The NVM is embedded to store
> > > +custom configurations. The PM6764TR device features up to 4-phase programmable operation.
> > > +
> > > +The PM6764TR supports power state transitions featuring VFDE, and programmable DPM
> > > +maintaining the best efficiency over all loading conditions without compromising transient
> > > +response. The device assures fast and independent protectionagainstload overcurrent,
> > "protectionagainstload" -> "protection against load"
> >
> > > +under/overvoltage and feedback disconnections.
> > > +
> > Drop empty line at end.
> >
> > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > index 94ac10a153c7..a3fea132c4ed 100644
> > > --- a/MAINTAINERS
> > > +++ b/MAINTAINERS
> > > @@ -13904,6 +13904,13 @@ M: Logan Gunthorpe <logang@deltatee.com>
> > > S: Maintained
> > > F: drivers/dma/plx_dma.c
> > Add empty line.
>
>
> There is an empty line here,
>
> Should I add one more empty line?
>
One empty line is needed. Maybe I missed it. I am looking forward to the
next version of your patch; then we'll see.
Thanks,
Guenter
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-11-30 15:00 UTC | newest]
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[not found] <f8766ea1-b4ee-f298-a5a4-dc83f9a54617@gmail.com>
2020-11-27 16:10 ` [PATCH v5] hwmon: Add driver for STMicroelectronics PM6764 Voltage Regulator Guenter Roeck
2020-11-30 7:46 ` Charles
2020-11-30 14:59 ` Guenter Roeck
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