Re: [PATCH v5 2/4] drm: mxsfb: Add optional DPI output bus-width configuration

[Luca Ceresoli]

On Thu, 17 Sep 2026 16:00:37 +0200, Francesco Dolcini <francesco@xxxxxxxxxx> wrote:
> LCDIF programs LCD_DATABUS_WIDTH from the selected media bus format. The
> format reported by the downstream panel or bridge describes the display
> input, but it does not describe how the LCDIF data pins are physically
> wired on the board.
> 
> These can differ. For example, a 16-bit LCDIF bus can be connected to a
> 24-bit display by wiring the available color bits to the corresponding
> display inputs. In that case, using the display's 24-bit format to
> configure LCDIF selects the wrong data-bus mode and changes the assignment
> of color bits on the LCD_DATA pins.
> 
> [...]

Reviewed-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
Tested-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com