Commit Graph

7 Commits

Author SHA1 Message Date
Ulf Magnusson bd6e04411e kconfig: Clean up header comments and make them consistent
Use this short header style in all Kconfig files:

    # <description>

    # <copyright>
    # <license>

    ...

Also change all <description>s from

    # Kconfig[.extension] - Foo-related options

to just

    # Foo-related options

It's clear enough that it's about Kconfig.

The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)

    git ls-files '*Kconfig*' | \
        xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-04 17:31:27 -05:00
Henrik Brix Andersen 683ca77620 drivers: adc: mcux_adc12: add driver for the NXP ADC12 module
Add MCUX driver shim for the NXP Kinetis 12-bit ADC module (ADC12).

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2019-06-07 14:30:59 -05:00
Johann Fischer 0187d60937 drivers: adc_mcux: improve initialization of the ADC
Improve initialization of the ADC.

After initialization with the default values, the clock source
of the ADC is asynchronous clock (ADACK) and clock divide ratio
is 8. The minimum conversion clock frequency is 1MHz.
Add clock divider selection and set default divide ratio to 1.
That sets the conversion clock frequency to approximately 5MHz.

Default configuration for the voltage reference is set to
external pins V_REFH and V_REFL. Depending on the MCU configuration
V_REFL may be connected to ground and V_REFH to VREF_OUT.
Since Voltage Reference block is not supported, the ADC does not work
properly on FRDM-KW41Z. Add voltage reference selection to fix it.

Enable self-calibration function as recommeded in Reference Manual.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
2018-12-13 08:32:18 -06:00
Andrzej Głąbek 62fcfb72d2 drivers: adc: Select HAS_DTS_ADC for all ADC drivers
To require relevant DTS entries on all platforms providing the ADC
driver.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-08-29 13:46:57 -04:00
Ulf Magnusson 2713e44594 drivers: adc: Kconfig: Remove redundant 'default n' properties
Bool symbols implicitly default to 'n'.

A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.

This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-07-03 17:11:31 -04:00
Maureen Helm f7a37cea8d mcux: nxp_kinetis: Move HAS_ADC16 config to ext
SoCs outside the Kinetis family can have the ADC16 module, so move the
HAS_ADC16 config from arch/arm/soc/nxp_kinetis to ext/hal/nxp/mcux

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2017-09-25 12:31:59 -05:00
Michał Kruszewski 0fea242397 kconfig: adc: Extract platform specific configs to separate files.
It increases readability and order.

Signed-off-by: Michał Kruszewski <michal.kruszewski@nordicsemi.no>
2017-09-13 09:56:25 -04:00