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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2019-09-04 16:28:04 +0300
committerSam Ravnborg <sam@ravnborg.org>2019-09-08 19:04:23 +0200
commit89958b7cd9555a5d82556cc9a1f4c62fffda6f96 (patch)
tree84087677853e7fd3d43ffdba931bfb299d1fb173 /drivers/gpu/drm/stm
parent9a2654c0f62a1704f36acb6329f9ccbd539f75ad (diff)
drm/bridge: panel: Infer connector type from panel by default
The drm panel bridge creates a connector using a connector type explicitly passed by the display controller or bridge driver that instantiates the panel bridge. Now that drm_panel reports its connector type, we can use it to avoid passing an explicit (and often incorrect) connector type to drm_panel_bridge_add() and devm_drm_panel_bridge_add(). Several drivers report incorrect or unknown connector types to userspace. Reporting a different type may result in a breakage. For that reason, rename (devm_)drm_panel_bridge_add() to (devm_)drm_panel_bridge_add_typed(), and add new (devm_)drm_panel_bridge_add() functions that use the panel connector type. Update all callers of (devm_)drm_panel_bridge_add() to the _typed function, they will be converted one by one after testing. The panel drivers have been updated with the following Coccinelle semantic patch, with manual inspection and fixes to indentation. @@ expression bridge; expression dev; expression panel; identifier type; @@ ( -bridge = drm_panel_bridge_add(panel, type); +bridge = drm_panel_bridge_add_typed(panel, type); | -bridge = devm_drm_panel_bridge_add(dev, panel, type); +bridge = devm_drm_panel_bridge_add_typed(dev, panel, type); ) Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190904132804.29680-3-laurent.pinchart@ideasonboard.com
Diffstat (limited to 'drivers/gpu/drm/stm')
-rw-r--r--drivers/gpu/drm/stm/ltdc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 3ab4fbf8eb0d..7cdab685b527 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -1236,8 +1236,8 @@ int ltdc_load(struct drm_device *ddev)
/* Add endpoints panels or bridges if any */
for (i = 0; i < MAX_ENDPOINTS; i++) {
if (panel[i]) {
- bridge[i] = drm_panel_bridge_add(panel[i],
- DRM_MODE_CONNECTOR_DPI);
+ bridge[i] = drm_panel_bridge_add_typed(panel[i],
+ DRM_MODE_CONNECTOR_DPI);
if (IS_ERR(bridge[i])) {
DRM_ERROR("panel-bridge endpoint %d\n", i);
ret = PTR_ERR(bridge[i]);