[PATCH v2 0/2] drm/komeda: Fix GLB_CORE_ID parsing and initialize encoder clone masks

[Raveendra Talabattula]

Komeda currently decodes GLB_CORE_ID with bit definitions that do not
match the hardware register layout, which leads to incorrect hardware
version reporting.

Patch 1 fixes the GLB_CORE_ID field definitions so the reported product
version matches the hardware specification.

DRM clone-mask validation can reject Komeda display + writeback
configurations because the encoder pair attached to one CRTC does not
advertise the required reciprocal possible_clones relationship.

Patch 2 sets the display/writeback clone masks when the writeback
connector is created, making the clone relationship explicit for the
encoder pair attached to that CRTC.

Changes in v2:
- Patch 1: add a short GLB_CORE_ID layout comment and drop the redundant
  product-id mask and shift-by-zero change noted in review.
- Patch 2: replace the global encoder mask initialization with per-CRTC
  display/writeback clone-mask setup.
- Patch 2: include each encoder's own bit in possible_clones.
- Update patch 2 subject and cover letter text to match the localized fix.

Cc: liviu.dudau@xxxxxxx
Cc: maarten.lankhorst@xxxxxxxxxxxxxxx
Cc: mripard@xxxxxxxxxx
Cc: tzimmermann@xxxxxxx
Cc: airlied@xxxxxxxxx
Cc: simona@xxxxxxxx
Cc: james.qian.wang@xxxxxxx
Cc: asad.malik@xxxxxxx
Cc: vincenzo.frascino@xxxxxxx
Cc: nayden.kanchev@xxxxxxx
Cc: charvi.mehta@xxxxxxx
Signed-off-by: Raveendra Talabattula <raveendra.talabattula@xxxxxxx>

Raveendra Talabattula (1):
  drm/komeda: Fix bits parsing of GLB_CORE_ID

Vincenzo Frascino (1):
  drm/komeda: Set display/writeback clone masks

 .../drm/arm/display/include/malidp_product.h  | 10 +++++++---
 .../arm/display/komeda/komeda_wb_connector.c  | 33 +++++++++++++++++++
 2 files changed, 40 insertions(+), 3 deletions(-)

-- 
2.43.0