On 4/13/26 03:05, Dmitry Baryshkov wrote:
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 <[email protected]>
---
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/
I agree, the plan to add a new atomic ops if much better.
Neil
