zephyr-kernel: Drop the Arduino USB CDC patch

This patch is not applying to the new Zephyr version provided by
meta-zephyr. Also, the implementation needs changes based on discussions
with the Zephyr community. We will be reimplementing it as part of:

https://booting.oniroproject.org/distro/meta-zephyr/-/issues/16



In the meanwhile, drop this patch to avoid build issues.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-zephyr-core/recipes-kernel/zephyr-kernel/files/arduino-usb-cdc-acm-enble.patch

-diff --git a/boards/arm/arduino_nano_33_ble/CMakeLists.txt b/boards/arm/arduino_nano_33_ble/CMakeLists.txt
-index 9e885f42ab..9ff0f80ab4 100644
---- a/boards/arm/arduino_nano_33_ble/CMakeLists.txt
-+++ b/boards/arm/arduino_nano_33_ble/CMakeLists.txt
-@@ -11,3 +11,7 @@ if(CONFIG_BOARD_ARDUINO_NANO_33_BLE_INIT_SENSORS)
-   zephyr_library_sources("${CMAKE_CURRENT_SOURCE_DIR}/src/init_sensors.c")
-   target_link_libraries(${ZEPHYR_CURRENT_LIBRARY} PRIVATE arduino_nano_33_ble_pins)
- endif()
-+
-+
-+zephyr_library()
-+zephyr_library_sources("${CMAKE_CURRENT_SOURCE_DIR}/src/init_usb_cdc_acm.c")
-\ No newline at end of file
-diff --git a/boards/arm/arduino_nano_33_ble/Kconfig.board b/boards/arm/arduino_nano_33_ble/Kconfig.board
-index 476a9123da..9dffe6ff69 100644
---- a/boards/arm/arduino_nano_33_ble/Kconfig.board
-+++ b/boards/arm/arduino_nano_33_ble/Kconfig.board
-@@ -18,3 +18,7 @@ config BOARD_ARDUINO_NANO_33_BLE_EN_USB_CONSOLE
- config BOARD_ARDUINO_NANO_33_BLE_INIT_SENSORS
- 	bool "Initializes the internal I2C sensors on the board"
- 	depends on BOARD_ARDUINO_NANO_33_BLE
-+
-+config BOARD_ARDUINO_NANO_33_BLE_INIT_USB_CDC_ACM
-+	bool "enable USB CDC_ACM interface after flashing"
-+	depends on BOARD_ARDUINO_NANO_33_BLE
-\ No newline at end of file
-diff --git a/boards/arm/arduino_nano_33_ble/Kconfig.defconfig b/boards/arm/arduino_nano_33_ble/Kconfig.defconfig
-index 937aba0014..8e27a1977f 100644
---- a/boards/arm/arduino_nano_33_ble/Kconfig.defconfig
-+++ b/boards/arm/arduino_nano_33_ble/Kconfig.defconfig
-@@ -10,6 +10,10 @@ config USB_NRFX
- 	default y
- config USB_DEVICE_STACK
- 	default y
-+config SERIAL
-+       default USB_CDC_ACM
-+config UART_INTERRUPT_DRIVEN
-+        default USB_CDC_ACM
- endif # USB
- 
- config BT_CTLR
-diff --git a/boards/arm/arduino_nano_33_ble/arduino_nano_33_ble_defconfig b/boards/arm/arduino_nano_33_ble/arduino_nano_33_ble_defconfig
-index ba8eeee931..5551c9cc3d 100644
---- a/boards/arm/arduino_nano_33_ble/arduino_nano_33_ble_defconfig
-+++ b/boards/arm/arduino_nano_33_ble/arduino_nano_33_ble_defconfig
-@@ -19,3 +19,16 @@ CONFIG_BOOTLOADER_BOSSA_LEGACY=y
- 
- # additional board options
- CONFIG_GPIO_AS_PINRESET=y
-+
-+# Following configuration are need to enable virtual com port via USB CDC_ACM 
-+# This will enble console as well as shell on USB CDC_ACM 
-+CONFIG_USB=y
-+CONFIG_USB_DEVICE_STACK=y
-+CONFIG_USB_DEVICE_PRODUCT="zephyr application with CDC_ACM enabled"
-+CONFIG_USB_UART_CONSOLE=y
-+CONFIG_UART_LINE_CTRL=y
-+CONFIG_UART_CONSOLE_ON_DEV_NAME="CDC_ACM_0"
-+CONFIG_UART_SHELL_ON_DEV_NAME="CDC_ACM_0"
-+CONFIG_BOARD_ARDUINO_NANO_33_BLE_INIT_USB_CDC_ACM=y
-+CONFIG_SHELL=y
-+CONFIG_SHELL_BACKEND_SERIAL=y
-diff --git a/boards/arm/arduino_nano_33_ble/src/init_usb_cdc_acm.c b/boards/arm/arduino_nano_33_ble/src/init_usb_cdc_acm.c
-new file mode 100644
-index 0000000000..856dc737b0
---- /dev/null
-+++ b/boards/arm/arduino_nano_33_ble/src/init_usb_cdc_acm.c
-@@ -0,0 +1,44 @@
-+#include <usb/usb_device.h>
-+#include <drivers/uart.h>
-+
-+#ifdef CONFIG_BOARD_ARDUINO_NANO_33_BLE_INIT_USB_CDC_ACM 
-+static int board_internal_usb_cdc_acm_init(const struct device *dev)
-+{
-+        ARG_UNUSED(dev);
-+        uint64_t end = sys_clock_timeout_end_calc(K_MSEC(2000));
-+        const struct device *device = device_get_binding(
-+                        CONFIG_UART_CONSOLE_ON_DEV_NAME);
-+        uint32_t dtr = 0;
-+
-+        if (device == NULL) {
-+	        return -ENODEV;
-+        }
-+
-+        if (usb_enable(NULL)) {
-+                return -EIO;
-+        }
-+
-+        /* Poll if the DTR flag was set, optional */
-+        do { 
-+                int64_t remaining = end - sys_clock_tick_get();
-+
-+                if (remaining <= 0) {
-+                        return -EIO;
-+                }
-+
-+                uart_line_ctrl_get(device, UART_LINE_CTRL_DTR, &dtr);
-+                k_sleep(K_MSEC(100));
-+        } while(!dtr);
-+
-+        if (strncmp(CONFIG_UART_CONSOLE_ON_DEV_NAME, "CDC_ACM_0",
-+                    strlen(CONFIG_UART_CONSOLE_ON_DEV_NAME))) {
-+                printk("Error: Console device name is not USB ACM\n");
-+
-+                return -ENXIO;
-+        }
-+
-+
-+        return 0;
-+}
-+SYS_INIT(board_internal_usb_cdc_acm_init, APPLICATION, 32);
-+#endif
-diff --git a/subsys/shell/shell_uart.c b/subsys/shell/shell_uart.c
-index de3987b558..1872249eee 100644
---- a/subsys/shell/shell_uart.c
-+++ b/subsys/shell/shell_uart.c
-@@ -312,7 +312,7 @@ static int enable_shell_uart(const struct device *arg)
- 
- 	return 0;
- }
--SYS_INIT(enable_shell_uart, POST_KERNEL,
-+SYS_INIT(enable_shell_uart, APPLICATION,
- 	 CONFIG_SHELL_BACKEND_SERIAL_INIT_PRIORITY);
- 
- const struct shell *shell_backend_uart_get_ptr(void)

meta-zephyr-core/recipes-kernel/zephyr-kernel/zephyr-kernel-src.inc

@@ -50,7 +50,6 @@ SRC_URI = "\
     git://github.com/zephyrproject-rtos/tinycrypt.git;protocol=https;nobranch=1;destsuffix=git/modules/crypto/tinycrypt;name=tinycrypt \
     git://github.com/zephyrproject-rtos/TraceRecorderSource.git;protocol=https;nobranch=1;destsuffix=git/modules/debug/TraceRecorder;name=TraceRecorder \
     git://github.com/zephyrproject-rtos/trusted-firmware-m.git;protocol=https;nobranch=1;destsuffix=git/modules/tee/tfm;name=tfm \
-    file://arduino-usb-cdc-acm-enble.patch \
     "
 S = "${WORKDIR}/git"