drm: adp: Add Apple Display Pipe driver

This display controller is present on M-series chips and is used
to drive the touchbar display.

Co-developed-by: Janne Grunau <[email protected]>
Signed-off-by: J

drm: adp: Add Apple Display Pipe driver

This display controller is present on M-series chips and is used
to drive the touchbar display.

Co-developed-by: Janne Grunau <[email protected]>
Signed-off-by: Janne Grunau <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Reviewed-by: Neal Gompa <[email protected]>
Signed-off-by: Sasha Finkelstein <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Alyssa Rosenzweig <[email protected]>

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