Battery time estimation works now.
This commit also changes the mksquashfs path to FUNKEY_SDK_PATH.
Change-Id: Ic0aa4c40011b0716f1c36c014377eaccb486e841
According to screen driver this device screen is actually 16 bit RGB565 (https://github.com/DrUm78/linux/blob/FunKey_S/drivers/staging/fbtft/fb_st7789v.c#L137).
This also fixes the color banding issues we had before and boomshine doesn't segfault anymore. Also building rockpaint now that's possible.
Change-Id: Icee49c347fbfabc79e0040314ec148cb77ca6325
A bit of context, this device is a clone of the FunKey-S with a different form factor, hardware is mostly identical, the relevant difference is it has audio out (via usb-c, adapter to 3.5mm is included), this is the reason why the FunKey-SDK is needed for bulding.
This port is based on the old SDL 1.2 code because the device doesn't have SDL2 support. Alongside what was supported in the SDL 1.2 builds this port supports battery level, charging status and backlight control.
Change-Id: I7fcb85be62748644b667c0efebabf59d6e9c5ade