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drivers: serial: Refactor drivers to use shared init priority Kconfig

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Refactors all of the serial drivers to use a shared driver class
initialization priority configuration, CONFIG_SERIAL_INIT_PRIORITY, to
allow configuring serial 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 one
exception is uart_lpc11u6x.c which previously used
CONFIG_KERNEL_INIT_PRIORITY_OBJECTS.

This change was motivated by an issue on the frdm_k64f board where the
serial driver was incorrectly initialized before the clock control
driver.

Signed-off-by: Maureen Helm <maureen.helm@intel.com>
This commit is contained in:
Maureen Helm 2021-10-14 09:38:10 -05:00 • committed by Anas Nashif
commit ad1450510a
44 changed files with 62 additions and 56 deletions
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2
drivers/serial/uart_npcx.c
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@ -506,7 +506,7 @@ static inline int uart_npcx_pm_control(const struct device *dev,
&uart_npcx_init, \
uart_npcx_pm_control, \
&uart_npcx_data_##inst, &uart_npcx_cfg_##inst, \
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE, \
PRE_KERNEL_1, CONFIG_SERIAL_INIT_PRIORITY, \
&uart_npcx_driver_api); \
\
NPCX_UART_IRQ_CONFIG_FUNC(inst)