diff options
| author | Maxime Ripard <mripard@kernel.org> | 2025-03-13 12:59:55 +0100 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2025-03-20 14:45:38 +0100 |
| commit | 98007a0d56b07605c626c9bdb550b5ae5ce71453 (patch) | |
| tree | 675fcd6223687392b36dc92a1898f7ee1e7f2bf4 /drivers/gpu/drm/mcde | |
| parent | 707bd8cceaac1af31d3eeeee166687bdde580fd3 (diff) | |
drm/bridge: Add encoder parameter to drm_bridge_funcs.attach
The drm_bridge structure contains an encoder pointer that is widely used
by bridge drivers. This pattern is largely documented as deprecated in
other KMS entities for atomic drivers.
However, one of the main use of that pointer is done in attach to just
call drm_bridge_attach on the next bridge to add it to the bridge list.
While this dereferences the bridge->encoder pointer, it's effectively
the same encoder the bridge was being attached to.
We can make it more explicit by adding the encoder the bridge is
attached to to the list of attach parameters. This also removes the need
to dereference bridge->encoder in most drivers.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250313-bridge-connector-v6-1-511c54a604fb@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mcde')
| -rw-r--r-- | drivers/gpu/drm/mcde/mcde_dsi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c index 395449a72f0a..b302d8ec3ad0 100644 --- a/drivers/gpu/drm/mcde/mcde_dsi.c +++ b/drivers/gpu/drm/mcde/mcde_dsi.c @@ -1048,6 +1048,7 @@ void mcde_dsi_disable(struct drm_bridge *bridge) } static int mcde_dsi_bridge_attach(struct drm_bridge *bridge, + struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) { struct mcde_dsi *d = bridge_to_mcde_dsi(bridge); @@ -1059,7 +1060,7 @@ static int mcde_dsi_bridge_attach(struct drm_bridge *bridge, } /* Attach the DSI bridge to the output (panel etc) bridge */ - return drm_bridge_attach(bridge->encoder, d->bridge_out, bridge, flags); + return drm_bridge_attach(encoder, d->bridge_out, bridge, flags); } static const struct drm_bridge_funcs mcde_dsi_bridge_funcs = { |