TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/bridge: Add bridge driver for display connectors

Browse Source 
Display connectors are modelled in DT as a device node, but have so far
been handled manually in several bridge drivers. This resulted in
duplicate code in several bridge drivers, with slightly different (and
thus confusing) logics.

In order to fix this, implement a bridge driver for display connectors.
The driver centralises logic for the DVI, HDMI, VGAn composite and
S-video connectors and exposes corresponding bridge operations.

This driver in itself doesn't solve the issue completely, changes in
bridge and display controller drivers are needed to make use of the new
connector driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-16-laurent.pinchart@ideasonboard.com
This commit is contained in:
Laurent Pinchart
2020-02-26 13:24:35 +02:00
committed by Tomi Valkeinen
parent ca00e10b50
commit 0c275c3017
3 changed files with 307 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/bridge/Kconfig
+11
View File
@@ -27,6 +27,17 @@ config DRM_CDNS_DSI
Support Cadence DPI to DSI bridge. This is an internal
bridge and is meant to be directly embedded in a SoC.
config DRM_DISPLAY_CONNECTOR
tristate "Display connector support"
depends on OF
help
Driver for display connectors with support for DDC and hot-plug
detection. Most display controller handle display connectors
internally and don't need this driver, but the DRM subsystem is
moving towards separating connector handling from display controllers
on ARM-based platforms. Saying Y here when this driver is not needed
will not cause any issue.
config DRM_LVDS_CODEC
tristate "Transparent LVDS encoders and decoders support"
depends on OF