Hi! The background for these patches is that our PCB interface between the SAMA5D3 and the ds90c185 lvds encoder is only using 16 bits, and this has to be described somewhere, or the atmel-hlcdc driver have no chance of selecting the correct output mode. Since we have similar problems with a tda19988 HDMI encoder I added patches to override the atmel-hlcdc output format via DT properties compatible with the media video-interface binding and things start to play together. Cheers, Peter Changes since v8 https://lkml.org/lkml/2018/8/10/309 - go back to the solution in v7 (but the ep device_node leak fixed) for patch 4/4 - redo (part of) 3/4 w/o using the disliked of_graph_parse_endpoint Changes since v7 https://lkml.org/lkml/2018/8/4/288 - The ep device_node was leaked in v7 patch 3/3, so add patch 3/4 which simplifies fixing this in patch 4/4 (and adds flexibility) and adjust patch 4/4 to the changes done in the new 3/4. - return -ENOMEM on allocation failure in patch 4/4 Changes since v6 https://lkml.org/lkml/2018/8/3/333 - zap bus-type from the binding in patch 2/3 Changes since (the shortened) v5 https://lkml.org/lkml/2018/8/3/182 - add reg properties (and #*-cells) to the example in patch 2/3 - prohibit bus-width 0 in the device-tree in patch 3/3 - added reviewed-by from Jacopo to patch 2/3 and 3/3 Peter Rosin (4): dt-bindings: display: bridge: lvds-transmitter: add ti,ds90c185 dt-bindings: display: atmel: optional video-interface of endpoints drm/atmel-hlcdc: always iterate over the first 4 output endpoints drm/atmel-hlcdc: support bus-width (12/16/18/24) in endpoint nodes .../devicetree/bindings/display/atmel/hlcdc-dc.txt | 23 ++++++ .../bindings/display/bridge/lvds-transmitter.txt | 8 +- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 70 +++++++++++----- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 1 + drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 92 +++++++++++++++++++--- 5 files changed, 163 insertions(+), 31 deletions(-) -- 2.11.0
