On Wed, Apr 17, 2013 at 05:33:36PM +0100, Anthony Olech wrote:
> This patch is relative to linux next-20130417
>
> This is the HWMON component driver of the Dialog DA9058 PMIC.
> This driver is just one component of the whole DA9058 PMIC driver.
> It depends on the CORE and ADC component drivers of the DA9058 MFD.
>
> Changes relative to V3 of this patch:
> - rebased to latest tagged linux-next - previously relative to mainline
> Documentation/hwmon/da9058
> - added final NL
> drivers/hwmon/Kconfig
> - changed dependancy from I2C to MFD
> drivers/hwmon/Makefile
> - put in alphabetical order
> drivers/hwmon/da9058-hwmon.c
> - aligned subsequent lines of function declarations
> - used single function for all slow labels
> - used recommended ..._label as function name
> - error conditions are returned as negative integers
> - chaned to suggested return value casting
> - removed all constant sysfile atributes except the labels
> - corrected parameter to adc read function to unsigned
> - used suggest name 'input' instead of 'value'
> - changed first temp attribute to temp1
> - fixed expression error to boolean and from bitwise and
> - removed redundant return statement
> - removed race condition by initializing before create sysfs
> - corected alignments on broken long lines
>
> Signed-off-by: Anthony Olech
> Signed-off-by: David Dajun Chen
> ---
> Documentation/hwmon/da9058 | 39 +
> drivers/hwmon/Kconfig| 10 ++
> drivers/hwmon/Makefile |3 +-
> drivers/hwmon/da9058-hwmon.c | 349
> ++
> 4 files changed, 400 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/hwmon/da9058
> create mode 100644 drivers/hwmon/da9058-hwmon.c
>
> diff --git a/Documentation/hwmon/da9058 b/Documentation/hwmon/da9058
> new file mode 100644
> index 000..eaedfe7
> --- /dev/null
> +++ b/Documentation/hwmon/da9058
> @@ -0,0 +1,39 @@
> +Kernel driver da9058-hwmon
> +==
> +
> +Supported chips:
> + * Dialog Semiconductor DA9058 PMIC
> +Prefix: 'da9058'
> +Datasheet:
> + http://www.dialog-semiconductor.com/products/power-management/da9058
> +
> +Authors: Opensource [Anthony Olech]
> +
> +Description
> +---
> +
> +The DA9058 PMIC contains a 5 channel ADC which can be used to monitor a
> +range of system operating parameters, including the battery voltage and
> +temperature. The ADC measures voltage, but two of the ADC channels can
> +be configured to supply a current, so that if an NTC termister is connected
> +then the voltage reading can be converted to a temperature. Currently the
> +driver provides reporting of all the input values but does not provide any
> +alarms.
> +
> +Voltage Monitoring
> +--
> +
> +Voltages are sampled in either 'automatic' or 'manual' mode, which is an
> +initialization parameter set in the platform data by the machine driver.
> +In manual mode the ADC conversion is 12 bit and in automatic mode it is
> +10 bit. However all the raw readings are reported as 12 bit numbers.
> +
> +Physical Limits
> +---
> +
> +vbat 2500 - 4500 milliVolts
> +tbat 0- 2500 milliVolts
> +adc0- 2500 milliVolts
> +vfpin 0- 4095 milliVolts
> +tjunc there is a correction factor programmed during manufacturing
> +
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index da93094..8014af2 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -324,6 +324,16 @@ config SENSORS_ATXP1
> This driver can also be built as a module. If so, the module
> will be called atxp1.
>
> +config SENSORS_DA9058
> + tristate "Dialog Semiconductor DA9058 ADC"
> + depends on MFD_DA9058 && DA9058_ADC
> + help
> + If you say yes here you get support for the hardware monitoring
> + functionality of the Dialog Semiconductor DA9058 PMIC.
> +
> + This driver can also be built as a module. If so, the module
> + will be called da9058-hwmon.
> +
> config SENSORS_DS620
> tristate "Dallas Semiconductor DS620"
> depends on I2C
> diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
> index c51b0dc..5b7705a 100644
> --- a/drivers/hwmon/Makefile
> +++ b/drivers/hwmon/Makefile
> @@ -46,7 +46,8 @@ obj-$(CONFIG_SENSORS_ASC7621) += asc7621.o
> obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
> obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o
> obj-$(CONFIG_SENSORS_DA9052_ADC)+= da9052-hwmon.o
> -obj-$(CONFIG_SENSORS_DA9055)+= da9055-hwmon.o
> +obj-$(CONFIG_SENSORS_DA9055) += da9055-hwmon.o
> +obj-$(CONFIG_SENSORS_DA9058) += da9058-hwmon.o
> obj-$(CONFIG_SENSORS_DME1737)+= dme1737.o
> obj-$(CONFIG_SENSORS_DS620) += ds620.o
> obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
> diff --git a/drivers/hwmon/da9058-hwmon.c b/drivers/hwmon/da9058-hwmon.c
> new file mode 100644
> index 000..b273f58
> --- /dev/null
> +++ b/drivers/hwmon/da9058-hwmon.c
> @@ -0,0 +1,349 @@
> +/*
> + *
