Re: [PATCH v4 0/4] drm: mxsfb: Support LCDIF interface bus width

[Francesco Dolcini <francesco@dolcini.it>]

+ some more DRM maintainers/reviewers

Hello,
just a gentle ping to the DRM bridge maintainers.

On Thu, Aug 13, 2026 at 11:28:30AM +0200, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@toradex.com>
> 
> The width of the physical LCDIF output bus can differ from the input bus
> format advertised by the downstream panel or bridge.
> 
> Such a distinction is required when the LCDIF bus width does not match the
> width of the downstream display interface. For example, an 18-bit or
> 16-bit LCDIF bus can drive a 24-bit display by wiring the available color
> bits to the appropriate display inputs. Configuring LCDIF solely from the
> display's 24-bit format in this case selects the wrong LCD_DATABUS_WIDTH
> mode, changing the color-bit assignment on the LCD_DATA pins and resulting
> in incorrect colors.
> 
> Use the common OF graph endpoint bus-width property to describe the width
> of the physical LCDIF output bus. Make the mxsfb driver derive the
> corresponding media bus format from this property and use it in preference
> to the format reported by the downstream display. When the property is
> absent, the existing behavior is preserved.
> 
> Set the endpoint bus width for the Colibri iMX6ULL and Colibri iMX7 boards,
> which route an 18-bit LCD interface.

The first two patches in this series should go through drm-misc-next.
Please let me know if any changes are still needed. Otherwise, could they be
picked up?

Thanks,
Francesco