drivers: video: mipi_csi2rx: Explicitly set init priority

The MIPI CSI-2 Rx needs to be initialized after the camera sensor which
is generally initialized with CONFIG_VIDEO_INIT_PRIORITY.

This is currently true "by chance" due to the order the linker links the
object files. This linker order is not easily controlled, so use an
explicit priority value to ensure this requirement.

Signed-off-by: Phi Bang Nguyen <phibang.nguyen@nxp.com>

Author: ngphibang

drivers/video/Kconfig.mcux_mipi_csi2rx

@@ -8,3 +8,10 @@ config VIDEO_MCUX_MIPI_CSI2RX
 	default y
 	depends on DT_HAS_NXP_MIPI_CSI2RX_ENABLED
 	select VIDEO_MCUX_CSI
+
+config VIDEO_MCUX_MIPI_CSI2RX_INIT_PRIORITY
+	int "NXP MCUX CSI-2 Rx init priority"
+	default 61
+	depends on VIDEO_MCUX_MIPI_CSI2RX
+	help
+	  Initialization priority for the MIPI CSI-2 Rx device.

drivers/video/video_mcux_mipi_csi2rx.c

@@ -327,7 +327,8 @@ static int mipi_csi2rx_init(const struct device *dev)
 	};                                                                                         \
                                                                                                    \
 	DEVICE_DT_INST_DEFINE(n, &mipi_csi2rx_init, NULL, &mipi_csi2rx_data_##n,                   \
-			      &mipi_csi2rx_config_##n, POST_KERNEL, CONFIG_VIDEO_INIT_PRIORITY,    \
+			      &mipi_csi2rx_config_##n, POST_KERNEL,                                \
+			      CONFIG_VIDEO_MCUX_MIPI_CSI2RX_INIT_PRIORITY,                         \
 			      &mipi_csi2rx_driver_api);                                            \
                                                                                                    \
 	VIDEO_DEVICE_DEFINE(mipi_csi2rx_##n, DEVICE_DT_INST_GET(n), SOURCE_DEV(n));