docs(u-boot): AM335X: Update splash screen details for 09.03.05.02

[sukrutb]

Update splash screen details with defconfig changes to enable splash screen.
Add steps to test the splash screen.
Add the reference output image on AM335x EVM.

[praneethbajjuri]

@devarsht , @jainswamil please review

[praneethbajjuri]

@sukrutb please update

[cshilwant]

Please plan to use ref and cross reference this section under AM335x release notes.

Checkout following links for more details,

How to use ref - https://www.sphinx-doc.org/en/master/usage/referencing.html#cross-referencing-arbitrary-locations

Link to AM335X release notes - https://github.com/TexasInstruments/processor-sdk-doc/blob/master/source/devices/AM335X/linux/Release_Specific_Release_Notes.rst?plain=1#L60

[devarsht]

@sukrutb @praneethbajjuri

Ain't it more apt to use UG-Splash screen i.e. below instead of APP-Splash-screen, For all Sitara platforms we use UG-Splash screen so that guide is more evolved.
https://github.com/TexasInstruments/processor-sdk-doc/blob/0cbc0f59f3aea10940952042012043c21c232fc7/source/linux/Foundational_Components/U-Boot/UG-Splash-Screen.rst

[sukrutb]

@sukrutb @praneethbajjuri

Ain't it more apt to use UG-Splash screen i.e. below instead of APP-Splash-screen, For all Sitara platforms we use UG-Splash screen so that guide is more evolved. https://github.com/TexasInstruments/processor-sdk-doc/blob/0cbc0f59f3aea10940952042012043c21c232fc7/source/linux/Foundational_Components/U-Boot/UG-Splash-Screen.rst
@devarsht I am not familiar with the cross platform reference of the release notes. Can you please elaborate?
AFAIK, this is related to AM62x (specifically HW, u-boot SW, and supported features), which is not the same as AM33xx implementation(e.g., we don't have SPL splash screen support).
So, I have updated in the APP-Splash-screen.

[cshilwant]

@sukrutb I still don't see this as well as other references of code section indentation under code-blocks being fixed - https://github.com/TexasInstruments/processor-sdk-doc/pull/116/files#r1887764585

[devarsht]

@sukrutb @praneethbajjuri
Ain't it more apt to use UG-Splash screen i.e. below instead of APP-Splash-screen, For all Sitara platforms we use UG-Splash screen so that guide is more evolved. https://github.com/TexasInstruments/processor-sdk-doc/blob/0cbc0f59f3aea10940952042012043c21c232fc7/source/linux/Foundational_Components/U-Boot/UG-Splash-Screen.rst
@devarsht I am not familiar with the cross platform reference of the release notes. Can you please elaborate?
AFAIK, this is related to AM62x (specifically HW, u-boot SW, and supported features), which is not the same as AM33xx implementation(e.g., we don't have SPL splash screen support).
So, I have updated in the APP-Splash-screen.

The UG-Splash-screen.rst is not specific to AM62x, other SoCs like AM62p too use the same guide. I am not sure about the goal for app-splash-screen.rst need to check with Bin on this.

[devarsht]

@sukrutb , anything to add from perspective of flicker-free transition solution ? I remember you did some enablement using pwm preservation and some discussions were there with simple-framebuffer too ?

[cshilwant]

@sukrutb I see many unrelated commits. Can you rebase and ensure only intended commits are in your PR

[sukrutb]

@sukrutb I see many unrelated commits. Can you rebase and ensure only intended commits are in your PR

@cshilwant , Done.

Author has updated the PR

[cshilwant]

@sukrutb I still see 5 commits on this PR.

I believe you used the Github's apply suggestion feature?

Apparently that's not encouraged. Author's are expected to resolve comments from reviewers manually.

The Github's apply suggestion feature messes with the Signed-off-by tags

FYR, I see below in 1286639

Signed-off-by: Sukrut Bellary <[email protected]>

[sukrutb]

@sukrutb I still see 5 commits on this PR.

I believe you used the Github's apply suggestion feature?

Apparently that's not encouraged. Author's are expected to resolve comments from reviewers manually.

The Github's apply suggestion feature messes with the Signed-off-by tags

FYR, I see below in 1286639

Signed-off-by: Sukrut Bellary <[email protected]>

@cshilwant , fixed. Please review. Thanks.

[cshilwant]

@praneethbajjuri @StaticRocket @devarsht for re-review