[Advice Needed] splash on i.MX IPU

[Stephan Bauroth]

On 03.11.2017 13:57, PrasannaKumar Muralidharan wrote:
> 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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>> dri-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 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
That indeed looks promising, I will look into it. Thanks!

Stephan
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