drivers: serial: ite_it8xxx2: add a dedicated priority symbol
The uart_ite_it8xxx2 is relying on a node that depends on a matching
ns16550 symbol, such as:
ite_uart1_wrapper: uartwrapper@f02720 {
compatible = "ite,it8xxx2-uart";
...
uart-dev = <&uart1>;
};
But the two are currently setup to initialize at the same level and
priority. Add a dedicated priority symbol so that the wrapper device is
always initialized after the main one, regardless of the linker order.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
diff --git a/drivers/serial/Kconfig.it8xxx2 b/drivers/serial/Kconfig.it8xxx2
index a58ff67..0a7a59c 100644
--- a/drivers/serial/Kconfig.it8xxx2
+++ b/drivers/serial/Kconfig.it8xxx2
@@ -11,3 +11,12 @@
to handle IT8XXX2 specific UART features. In addition
to use pm_action_cb, we also need to make some setting
at uart_it8xxx2_init.
+
+config UART_ITE_IT8XXX2_INIT_PRIORITY
+ int "ITE IT8XXX2 UART wrapper init priority"
+ default 51
+ depends on UART_ITE_IT8XXX2
+ help
+ Initialization priority for the UART wrapper driver on ITE IT8XXX2,
+ must be set to a lower priority than the matching ns16550 device
+ (CONFIG_SERIAL_INIT_PRIORITY).
diff --git a/drivers/serial/uart_ite_it8xxx2.c b/drivers/serial/uart_ite_it8xxx2.c
index 166fee9..9bf79e5 100644
--- a/drivers/serial/uart_ite_it8xxx2.c
+++ b/drivers/serial/uart_ite_it8xxx2.c
@@ -203,7 +203,7 @@
&uart_it8xxx2_data_##inst, \
&uart_it8xxx2_cfg_##inst, \
PRE_KERNEL_1, \
- CONFIG_SERIAL_INIT_PRIORITY, \
+ CONFIG_UART_ITE_IT8XXX2_INIT_PRIORITY, \
NULL);
DT_INST_FOREACH_STATUS_OKAY(UART_ITE_IT8XXX2_INIT)
