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drm/bridge: Refactor out the panel wrapper from the lvds-encoder bridge.

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Many DRM drivers have common code to make a stub connector
implementation that wraps a drm_panel.  By wrapping the panel in a DRM
bridge, all of the connector code (including calls during encoder
enable/disable) goes away.

v2: Fix build with CONFIG_DRM=m, drop "dev" argument that should just
    be the panel's dev, move kerneldoc up a level and document
    _remove().
v3: Fix another breakage with CONFIG_DRM=m, fix breakage with
    CONFIG_OF=n, move protos under CONFIG_DRM_PANEL_BRIDGE, wrap a
    line.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> (v2)
Acked-by: Archit Taneja <architt@codeaurora.org> (v2)
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170602202514.11900-1-eric@anholt.net
This commit is contained in:
Eric Anholt
2017-06-02 13:25:14 -07:00
committed by Archit Taneja
parent b0febde779
commit 13dfc0540a
6 changed files with 241 additions and 141 deletions
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7
include/drm/drm_bridge.h
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@@ -29,6 +29,7 @@
#include <drm/drm_modes.h>
struct drm_bridge;
struct drm_panel;
/**
* struct drm_bridge_funcs - drm_bridge control functions
@@ -263,4 +264,10 @@ void drm_bridge_mode_set(struct drm_bridge *bridge,
void drm_bridge_pre_enable(struct drm_bridge *bridge);
void drm_bridge_enable(struct drm_bridge *bridge);
#ifdef CONFIG_DRM_PANEL_BRIDGE
struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
u32 connector_type);
void drm_panel_bridge_remove(struct drm_bridge *bridge);
#endif
#endif