drivers: uart_altera_jtag_hal: use DEVICE_DT_INST_DEFINE()

The conversion to devicetree seems to be half lost
for this driver. There are already bindings and nodes for
compatible "altr,jtag-uart", update driver to use it.
Remove last mention of CONFIG_UART_CONSOLE_ON_DEV_NAME.

Resolves #37207

Signed-off-by: Johann Fischer <[email protected]>

Author: jfischer-no

boards/nios2/altera_max10/doc/index.rst

@@ -122,13 +122,15 @@ minicom with flow control disabled, 115200-8N1 settings.
 JTAG UART
 ---------
 
-You can also have it send its console output to the JTAG UART. Set these in your
-project configuration:
+You can also have it send its console output to the JTAG UART.
+Enable ``jtag_uart`` node in :file:`altera_max10.dts` or overlay file:
 
-.. code-block:: console
+.. code-block:: devicetree
 
-   CONFIG_UART_ALTERA_JTAG=y
-   CONFIG_UART_CONSOLE_ON_DEV_NAME="jtag_uart0"
+   &jtag_uart {
+       status = "okay";
+       current-speed = <115200>;
+   };
 
 To view these messages on your local workstation, run the terminal application
 in the SDK:

boards/nios2/qemu_nios2/qemu_nios2_defconfig

@@ -6,7 +6,6 @@ CONFIG_HAS_ALTERA_HAL=y
 CONFIG_CONSOLE=y
 CONFIG_PRINTK=y
 CONFIG_SERIAL=y
-CONFIG_UART_ALTERA_JTAG=y
 CONFIG_UART_NS16550=y
 CONFIG_UART_CONSOLE=y
 CONFIG_INCLUDE_RESET_VECTOR=n

drivers/serial/Kconfig.altera_jtag

@@ -1,7 +1,10 @@
 # SPDX-License-Identifier: Apache-2.0
 
+DT_COMPAT_ALTR_JTAG_UART  := altr,jtag-uart
+
 config UART_ALTERA_JTAG
 	bool "Nios II JTAG UART driver"
+	default $(dt_compat_enabled,$(DT_COMPAT_ALTR_JTAG_UART))
 	select SERIAL_HAS_DRIVER
 	help
 	  Enable the Altera JTAG UART driver, built in to many Nios II CPU

drivers/serial/uart_altera_jtag_hal.c

@@ -13,6 +13,8 @@
 #include "altera_avalon_jtag_uart.h"
 #include "altera_avalon_jtag_uart_regs.h"
 
+#define DT_DRV_COMPAT	altr_jtag_uart
+
 #define UART_ALTERA_JTAG_DATA_REG                  0
 #define UART_ALTERA_JTAG_CONTROL_REG               1
 
@@ -57,8 +59,7 @@ static const struct uart_device_config uart_altera_jtag_dev_cfg_0 = {
 	.sys_clk_freq = 0, /* Unused */
 };
 
-DEVICE_DEFINE(uart_altera_jtag_0, "jtag_uart0",
-		    uart_altera_jtag_init, NULL, NULL,
-		    &uart_altera_jtag_dev_cfg_0,
-		    PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
-		    &uart_altera_jtag_driver_api);
+DEVICE_DT_INST_DEFINE(0, uart_altera_jtag_init, NULL,
+		      NULL, &uart_altera_jtag_dev_cfg_0,
+		      PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
+		      &uart_altera_jtag_driver_api);