The MIPI-DSI infrastructure and setup we have so far is limited and doesn't provide a good way to address some corner-cases. Add a TODO entry to document what is needed. Cc: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx> --- Documentation/gpu/todo.rst | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 52fd8672fb6d..94139c652663 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -633,10 +633,30 @@ long as that supports DMA. Otherwise importing can still needlessly fail. Contact: Thomas Zimmermann <tzimmermann@xxxxxxx>, Daniel Vetter Level: Advanced +Improve MIPI-DSI infrastructure +------------------------------- + +The MIPI-DSI infrastructure in KMS supports MIPI-DSI devices in part +through a dedicated bus (`drm_mipi_dsi.c`) and in part through ad-hoc +calls in drivers, especially to handle the power state of the bus. + +This is an oddity as far as the device model is concerned, but is also +an issue when multiple devices are chained (like bridges) and have +different requirements. + +It would be a good idea to move all the power state handling out of KMS +and into the bus support itself. + +See `[RFC PATCH 03/10] drm/mipi-dsi: add API for manual control over the DSI link power state <https://lore.kernel.org/dri-devel/20231016165355.1327217-4-dmitry.baryshkov@xxxxxxxxxx/>`_ + +Contact: Maxime Ripard <mripard@xxxxxxxxxx>, Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> + +Level: Advanced + Improve HDMI Infrastructure --------------------------- We have a bunch of helpers to handle HDMI and reduce the boilerplate in drivers. Support so far includes HDMI 1.4 support, but we need to extend -- 2.45.2
