mimxrt/machine_uart: Fix an inconsistency for UART.init() arg handling.

robert-hh · dpgeorge · commit 5cc2dd4f5d70 · 2022-06-07T18:21:46.000+10:00
With keyword arguments only or just a single non-keyword argument,
UART.init() did not perform the settings.
diff --git a/ports/mimxrt/machine_uart.c b/ports/mimxrt/machine_uart.c
@@ -208,7 +208,7 @@ STATIC mp_obj_t machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args
     }
 
     // Initialise the UART peripheral if any arguments given, or it was not initialised previously.
-    if (n_args > 1 || self->new) {
+    if (n_args > 0 || kw_args->used > 0 || self->new) {
         self->new = false;
         // may be obsolete
         if (self->config.baudRate_Bps == 0) {

Original file line number	Diff line number	Diff line change
`@@ -208,7 +208,7 @@ STATIC mp_obj_t machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args`
`208`	`208`	`}`
`209`	`209`
`210`	`210`	`// Initialise the UART peripheral if any arguments given, or it was not initialised previously.`
`211`		`- if (n_args > 1 \|\| self->new) {`
	`211`	`+ if (n_args > 0 \|\| kw_args->used > 0 \|\| self->new) {`
`212`	`212`	`self->new = false;`
`213`	`213`	`// may be obsolete`
`214`	`214`	`if (self->config.baudRate_Bps == 0) {`