Add phandle prop to reference any regulator that must
be enabled in order for the LPADC to function as intended.
Change LPADC driver to use this property if present.
LPADC on LPC55S36 depends on VREF peripheral, enable for this platform.
Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
Rewrite MCUX LPADC driver, to better utilize hardware.
the following changes have been applied:
- channel numbers now correspond to hardware channel command slots,
use "input_positive" and "input_negative" fields along with channel
definitions in dt-bindings/adc/mcux-lpadc.h to select a channel
- the number of channel command slots available is configurable via
CONFIG_LPADC_CHANNEL_COUNT
- Side A and side B channels are now supported
- differential channel mode is now supported
- ADC channels now are sampled via hardware, without additional
software triggering
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Update adc drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
We remove 'depend on' Kconfig for symbols that would be implied by
the devicetree node existing.
Signed-off-by: Kumar Gala <galak@kernel.org>
According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:
sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Refactors all of the ADC drivers to use a shared driver class
initialization priority configuration, CONFIG_ADC_INIT_PRIORITY, to
allow configuring ADC drivers separately from other devices. This is
similar to other driver classes like I2C and SPI.
The default is set to CONFIG_KERNEL_INIT_PRIORITY_DEVICE to preserve the
existing default initialization priority for most drivers. The
exceptions are lmp90xxx, mcp320x, and mcux_adc16 drivers which have
dependencies on GPIO, SPI, and/or DMA drivers and must therefore
initialize later than the default device priority.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
add dma support to adc driver
add HW trigger dma support
using new dma api to request dma channel
tested on frdm_k82f and frdm_k64f
Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
In order to overrdie a choice one needs to define it again. Override it
by redefining it in the .defconfig file.
See #22474.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
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>
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>
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>
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>
