zephyr/drivers/display/Kconfig.mcux_dcnano_lcdif

# Copyright 2023 NXP
# SPDX-License-Identifier: Apache-2.0


menuconfig DISPLAY_MCUX_DCNANO_LCDIF
	bool "MCUX DCNano LCDIF driver"
	default y
	depends on DT_HAS_NXP_DCNANO_LCDIF_ENABLED
	help
	  Enable support for mcux DCNano LCDIF driver.


if DISPLAY_MCUX_DCNANO_LCDIF

config MCUX_DCNANO_LCDIF_FB_NUM
	int "Framebuffers to allocate in driver"
	default 1
	range 0 2
	help
	  Number of framebuffers to allocate in DCNANO driver. Driver allocated
	  framebuffers are required to support partial display updates.
	  The driver has been validated to support 0 through 2 framebuffers.
	  Note that hardware will likely perform best if zero driver
	  framebuffers are allocated by the driver, and the application
	  implements double framebuffering by always calling display_write with
	  a buffer equal in size to the connected panel.


config MCUX_DCNANO_LCDIF_MAINTAIN_CACHE
	bool "Maintain cache coherency"
	default y
	help
	  Maintain cache coherency for LCDIF framebuffer. This is generally
	  required, unless an external framebuffer is utilized with custom
	  caching settings, or caching is disabled.

config MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM
	bool "Use external memory for framebuffer"
	imply MEMC
	help
	  Use external memory for framebuffer. Configures the LCDIF to write
	  framebuffer data to a memory mapped external device.

	  Note that no specific linker section is used for this framebuffer, so
	  if the application uses the external memory for other purposes, care
	  should be taken to ensure that the memory allocated for the LCDIF
	  does not overlap with other data. Each allocated LCDIF buffer will
	  utilize (lcd_width * lcd_height * bytes_per_pixel) bytes of data,
	  and buffers will be allocated contiguously.

if MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM

config MCUX_DCNANO_LCDIF_EXTERNAL_FB_ADDR
	hex "LCDIF framebuffer address"
	help
	  Address of memory mapped external framebuffer.
	  Must be 128 byte aligned

endif # MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM

endif # DISPLAY_MCUX_ELCDIF