Hello all, This patch series add support for the dual OLDI TXes supported in Texas Instruments' AM62x and AM62Px family of SoCs. The OLDI TXes support single-lvds, lvds-clone, and dual-lvds modes. These have now been represented through DRM bridges within TI-DSS.
The OLDI configuration should happen before the video-port configuration takes place in tidss_crtc_atomic_enable hook. I have posted a patch allowing DRM bridges to get enabled before the CRTC of that bridge is enabled[0]. The patch 4/4 of this series uses the bridge hooks introduced in [0], and hence will not compile without [0]. This patch series is a complete re-vamp from the previously posted series[1] and hence, the version index has been reset to v1. The OLDI support from that series was dropped and only the base support for AM625 DSS was kept (and eventually merged)[2]. These patches have been tested on AM625 based platforms, SK-AM625 EVM with a Microptis dual-lvds panel (SK-LCD1), and Beagleplay with a Lincolntech dual-lvds panel (LCD-185T). The patches with complete support including the expected devicetree configuration of the OLDI TXes can be found in the "next_oldi_finals-v1-tests" branch of my github fork[3]. Thanks, Aradhya [0]: Dependency Patch: Introduce early_enable / late_disable drm bridge APIs https://lore.kernel.org/all/20240511153051.1355825-7-a-bhat...@ti.com/ [1]: AM62 OLDI Series - v7 https://lore.kernel.org/all/20230125113529.13952-1-a-bhat...@ti.com/ [2]: AM62 DSS Series - v9 https://lore.kernel.org/all/20230616150900.6617-1-a-bhat...@ti.com/ [3]: GitHub Fork for OLDI tests https://github.com/aradhya07/linux-ab/tree/next_oldi_finals-v1-tests Aradhya Bhatia (4): dt-bindings: display: ti,am65x-dss: Minor Cleanup dt-bindings: display: ti: Add schema for AM625 OLDI Transmitter dt-bindings: display: ti,am65x-dss: Add OLDI properties for AM625 DSS drm/tidss: Add OLDI bridge support .../bindings/display/ti/ti,am625-oldi.yaml | 153 +++++ .../bindings/display/ti/ti,am65x-dss.yaml | 178 +++++- MAINTAINERS | 1 + drivers/gpu/drm/tidss/Makefile | 3 +- drivers/gpu/drm/tidss/tidss_dispc.c | 11 +- drivers/gpu/drm/tidss/tidss_dispc.h | 4 + drivers/gpu/drm/tidss/tidss_drv.c | 13 +- drivers/gpu/drm/tidss/tidss_drv.h | 4 + drivers/gpu/drm/tidss/tidss_oldi.c | 568 ++++++++++++++++++ drivers/gpu/drm/tidss/tidss_oldi.h | 73 +++ 10 files changed, 983 insertions(+), 25 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/ti/ti,am625-oldi.yaml create mode 100644 drivers/gpu/drm/tidss/tidss_oldi.c create mode 100644 drivers/gpu/drm/tidss/tidss_oldi.h base-commit: 75fa778d74b786a1608d55d655d42b480a6fa8bd -- 2.34.1
