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drivers: adc: Refactor drivers to use shared init priority

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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>
This commit is contained in:
Maureen Helm 2021-10-19 14:45:49 -05:00 • committed by Christopher Friedt
commit b0cdef3c25
24 changed files with 34 additions and 36 deletions
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drivers/adc/adc_mchp_xec.c
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@ -309,5 +309,5 @@ static struct adc_xec_data adc_xec_dev_data_0 = {
DEVICE_DT_INST_DEFINE(0, adc_xec_init, NULL,
&adc_xec_dev_data_0, NULL,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
PRE_KERNEL_1, CONFIG_ADC_INIT_PRIORITY,
&adc_xec_api);