zephyr/drivers/display/Kconfig.st7789v

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# ST7789V display driver configuration options
# Copyright (c) 2019 Marc Reilly <marc@cpdesign.com.au>
# SPDX-License-Identifier: Apache-2.0
menuconfig ST7789V
bool "ST7789V display driver"
default y
depends on DT_HAS_SITRONIX_ST7789V_ENABLED
select SPI
help
Enable driver for ST7789V display driver.
choice ST7789V_PIXEL_FORMAT
prompt "Color pixel format"
default ST7789V_RGB565
kconfig: Replace some single-symbol 'if's with 'depends on' I think people might be reading differences into 'if' and 'depends on' that aren't there, like maybe 'if' being needed to "hide" a symbol, while 'depends on' just adds a dependency. There are no differences between 'if' and 'depends on'. 'if' is just a shorthand for 'depends on'. They work the same when it comes to creating implicit menus too. The way symbols get "hidden" is through their dependencies not being satisfied ('if'/'depends on' get copied up as a dependency on the prompt). Since 'if' and 'depends on' are the same, an 'if' with just a single symbol in it can be replaced with a 'depends on'. IMO, it's best to avoid 'if' there as a style choice too, because it confuses people into thinking there's deep Kconfig magic going on that requires 'if'. Going for 'depends on' can also remove some nested 'if's, which generates nicer symbol information and docs, because nested 'if's really are so simple/dumb that they just add the dependencies from both 'if's to all symbols within. Replace a bunch of single-symbol 'if's with 'depends on' to despam the Kconfig files a bit and make it clearer how things work. Also do some other minor related dependency refactoring. The replacement isn't complete. Will fix up the rest later. Splitting it a bit to make it more manageable. (Everything above is true for choices, menus, and comments as well.) Detected by tweaking the Kconfiglib parsing code. It's impossible to detect after parsing, because 'if' turns into 'depends on'. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 10:45:50 +08:00
depends on ST7789V
help
Specify the color pixel format for the ST7789V display controller.
config ST7789V_RGB888
bool "RGB888"
config ST7789V_RGB565
bool "RGB565"
endchoice