[v5,0/2] drm/bridge: imx: Add i.MX93 parallel display format configuration support

Message

Liu Ying March 4, 2025, 8:24 a.m. UTC

Hi,

This patch set aims to add NXP i.MX93 parallel display format configuration
DRM bridge driver support. i.MX93 mediamix blk-ctrl contains one
DISPLAY_MUX register which configures parallel display format by using
the "PARALLEL_DISP_FORMAT" field. i.MX93 LCDIF display controller's
parallel output connects with this piece of small logic to configure
parallel display format.

Patch 1/2 adds NXP i.MX93 parallel display format configuration subnode
in i.MX93 mediamix blk-ctrl dt-binding.

Patch 2/2 adds NXP i.MX93 parallel display format configuration DRM bridge
driver support.

v4->v5:
* Rebase the patch set upon next-20250303.  This causes the drop of .remove_new
  from patch 2/2 by using devm_drm_bridge_add().  Also, this causes API change
  for imx93_pdfc_bridge_atomic_enable() in patch 2/2.
* Update year of copyright in patch 2/2.

v3->v4:
* Use dev_err_probe() in imx93_pdfc_bridge_probe() in patch 2/2. (Krzysztof)
* Drop MODULE_ALIAS() in patch 2/2. (Krzysztof)
* Update year of Copyright in patch 2/2.

v2->v3:
* Define i.MX93 parallel display format configuration subnode in
  i.MX93 mediamix blk-ctrl dt-binding. (Rob)
* Resend with Conor's R-b tag on patch 1/2 and with the patch set rebased
  upon v6.11-rc1.

v1->v2:
* Set *num_input_fmts to zero in case
  imx93_pdfc_bridge_atomic_get_input_bus_fmts() returns NULL in patch 2/2.
* Replace .remove callback with .remove_new callback in
  imx93_pdfc_bridge_driver in patch 2/2.

Liu Ying (2):
  dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and
    example
  drm/bridge: imx: Add i.MX93 parallel display format configuration
    support

 .../soc/imx/fsl,imx93-media-blk-ctrl.yaml     |  68 +++++++
 drivers/gpu/drm/bridge/imx/Kconfig            |   8 +
 drivers/gpu/drm/bridge/imx/Makefile           |   1 +
 drivers/gpu/drm/bridge/imx/imx93-pdfc.c       | 186 ++++++++++++++++++
 4 files changed, 263 insertions(+)
 create mode 100644 drivers/gpu/drm/bridge/imx/imx93-pdfc.c