[Advice Needed] splash on i.MX IPU

[PrasannaKumar Muralidharan]

Hi,

On 3 November 2017 at 16:56, Stephan Bauroth <der_steffi at gmx.de> wrote:
> Dear dri-devel, spec. Dear i.MX folks,
>
> I would like to display a splash screen on an i.MX6 based board from the
> kernel as soon as the display hardware is initialized. But I'm having
> trouble finding some kind of 'take this buffer and display it' function
> within the IPU driver. (And I see no way of specifying such thing within the
> device tree)
>
> I tried to trace a userspace write to /dev/fb0 to see where it ends up, but
> didn't succeed in finding the right entry point. I am aware of the fact that
> the bootloader typically displays a splash and linux then doesn't touch it,
> but this solution is not feasible for me, mostly because it would include
> duplicating the functionality of a display driver when the kernel offers a
> working one.
>
> Has anybody built a splash from the kernel before? Or can anyone give me a
> few pointers where to look for a start within the driver? Any help is
> appreciated.
>
> regards,
> Stephan
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Please take a look at
http://lkml.iu.edu/hypermail/linux/kernel/1710.3/01542.html. I think
your need is similar to this. The solution is not mainline yet.

Thanks,
PrasannaKumar