Messages in this thread |  | | Date | Mon, 13 Apr 2026 04:05:40 +0300 | | From | Dmitry Baryshkov <> | | Subject | Re: [RFC PATCH 1/2] drm: Introduce drm_panel_prepare_for_mode callback |
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On Sun, Apr 12, 2026 at 08:00:44AM -0300, Val Packett wrote: > Modern OLED panels often need to vary their prepare commands based on the > mode being set (resolution and refresh rate). Introduce a new variant of > the drm_panel_prepare callback that passes the chosen mode as an argument > to allow for this. > > Signed-off-by: Val Packett <val@packett.cool> > --- > drivers/gpu/drm/bridge/panel.c | 8 ++++++-- > drivers/gpu/drm/drm_panel.c | 15 +++++++++++++-- > include/drm/drm_panel.h | 12 ++++++++++++ > 3 files changed, 31 insertions(+), 4 deletions(-) >
A (somewhat) better approach would be to let add .atomic_foo callbacks, which would receive drm_atomic_state instance. See the discussion around [1].
[1] https://lore.kernel.org/dri-devel/nfc6ih43gjpi5u67fpkkxgwwygv53grdldq7tfp5iiukrkiy2u@53fsrtezzkyt/
-- With best wishes Dmitry
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