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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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4
drivers/serial/leuart_gecko.c
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@ -354,7 +354,7 @@ static struct leuart_gecko_data leuart_gecko_0_data;
DEVICE_DT_INST_DEFINE(0, &leuart_gecko_init,
NULL, &leuart_gecko_0_data,
&leuart_gecko_0_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
CONFIG_SERIAL_INIT_PRIORITY,
&leuart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
@ -407,7 +407,7 @@ static struct leuart_gecko_data leuart_gecko_1_data;
DEVICE_DT_INST_DEFINE(1, &leuart_gecko_init,
NULL, &leuart_gecko_1_data,
&leuart_gecko_1_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
CONFIG_SERIAL_INIT_PRIORITY,
&leuart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN