On 4/1/22 20:46, Laurent Pinchart wrote:

Hi,

On Fri, Apr 01, 2022 at 06:37:54PM +0200, Marek Vasut wrote:
Make the width-mm/height-mm panel properties mandatory in
of_get_drm_panel_display_mode(), print error message and
return -ve in case these DT properties are not present.
This is needed to correctly report panel dimensions.

Can we guarantee this won't cause a regression ?

For the upstream DTs, I think we can.
For downstream DTs, we cannot know.

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