Hi, On Tue, Sep 16, 2025 at 7:22 AM Emanuele Ghidoli <[email protected]> wrote: > > From: Emanuele Ghidoli <[email protected]> > > The component datasheet recommends, to reduce power consumption, > transitioning to LP mode on every video line. > > Enable the MIPI_DSI_MODE_VIDEO_NO_HFP and MIPI_DSI_MODE_VIDEO_NO_HBP > flags so that the bridge can enter LP mode during the horizontal front > porch and back porch periods. > > Signed-off-by: Emanuele Ghidoli <[email protected]> > --- > Cc: Douglas Anderson <[email protected]> > Cc: Andrzej Hajda <[email protected]> > Cc: Neil Armstrong <[email protected]> > Cc: Robert Foss <[email protected]> > Cc: Laurent Pinchart <[email protected]> > Cc: Jonas Karlman <[email protected]> > Cc: Jernej Skrabec <[email protected]> > Cc: Maarten Lankhorst <[email protected]> > Cc: Maxime Ripard <[email protected]> > Cc: Thomas Zimmermann <[email protected]> > Cc: David Airlie <[email protected]> > Cc: Simona Vetter <[email protected]> > Cc: Jayesh Choudhary <[email protected]> > Cc: <[email protected]> > Cc: <[email protected]> > --- > drivers/gpu/drm/bridge/ti-sn65dsi86.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
I put this on a sc7180-trogdor based Chromebook and the display no longer comes up. I don't personally know the MIPI side of the spec too well so I have no idea why that would be. -Doug
