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| author | Maxime Ripard <mripard@kernel.org> | 2025-03-13 14:59:55 +0300 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2025-03-20 16:45:38 +0300 |
| commit | 98007a0d56b07605c626c9bdb550b5ae5ce71453 (patch) | |
| tree | 675fcd6223687392b36dc92a1898f7ee1e7f2bf4 /drivers/gpu/drm/vc4 | |
| parent | 707bd8cceaac1af31d3eeeee166687bdde580fd3 (diff) | |
| download | linux-98007a0d56b07605c626c9bdb550b5ae5ce71453.tar.xz | |
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/vc4')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_dsi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c index 779b22efe27b..efc6f6078b02 100644 --- a/drivers/gpu/drm/vc4/vc4_dsi.c +++ b/drivers/gpu/drm/vc4/vc4_dsi.c @@ -1160,12 +1160,13 @@ static void vc4_dsi_bridge_enable(struct drm_bridge *bridge, } static int vc4_dsi_bridge_attach(struct drm_bridge *bridge, + struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) { struct vc4_dsi *dsi = bridge_to_vc4_dsi(bridge); /* Attach the panel or bridge to the dsi bridge */ - return drm_bridge_attach(bridge->encoder, dsi->out_bridge, + return drm_bridge_attach(encoder, dsi->out_bridge, &dsi->bridge, flags); } |