Re: [PATCH v9 00/19] Add Freescale i.MX8qxp Display Controller support

[Francesco Dolcini]

On Thu, Jul 16, 2026 at 02:21:31PM +0800, Liu Ying wrote:
> On Tue, Jul 14, 2026 at 09:36:27PM +0200, Francesco Dolcini wrote:
> > On Mon, Apr 14, 2025 at 11:50:09AM +0800, Liu Ying wrote:
> > > Hi,
> > > 
> > > This patch series aims to add Freescale i.MX8qxp Display Controller support.
> > > 
> > > The controller is comprised of three main components that include a blit
> > > engine for 2D graphics accelerations, display controller for display output
> > > processing, as well as a command sequencer.
> > 
> > ...
> > 
> > > 
> > > To follow up i.MX8qxp TRM, I changed the controller name to "Display Controller"
> > > instead of the previous "DPU".  "DPU" is only mentioned in the SoC block
> > > diagram and represents the whole display subsystem which includes the display
> > > controller and prefech engines, etc.
> > > 
> > > With an additional patch[1] for simple-pm-bus.c, this series facilitates
> > > testing a LVDS panel on i.MX8qxp MEK.
> > > 
> > > Please do NOT merge patch 14-19.  They are only used to facilitate testing
> > > the LVDS panel.
> > 
> > What's the plan to conclude this work? What's the latest status?
> > I am looking forward to have a way to use the i.MX8QXP display with
> > mainline, but to my understanding some required changes on the SOC dtsi
> > are not merged.
> > 
> > Can you help?
> 
> I planned to add display controller DT node after prefetch engine support [1]
> is picked up so that the prefetch engine could be enabled together with the
> display controller.  Just want to avoid a DT that only enables the display
> controller or bypasses the prefetch engine.  It makes the display controller
> driver simpler.
> 
> [1] https://lore.kernel.org/all/20251027-imx8-dc-prefetch-v5-0-4ecb6c6d4941@xxxxxxx/

That series is from October 2025, is there anything blocking to move it
forward?

Francesco