Having component_add for running all drm bind callbacks returns
error or unbound due to chain of DSI devices connected across
bridge topology on a display pipeline.
In a typical bridge oriented display pipeline where the host is
connected to the bridge converter and that indeed connected to
a
This series convert Allwinner DSI controller to full functional
drm bridge driver for supporting all variants of DSI devices.
Here, are the previous version changes[1].
Patch 1: Drop the DRM bind race while attaching bridges
Patch 2: Move component_add into sun6i_dsi_attach
Patch 3: Convert
Existing host driver will keep looking for DRM pointer in
sun6i_dsi_attach and defers even if the particular DSI device
is found for the first time. Meanwhile it triggers the bind
callback and gets the DRM pointer and then continues the
sun6i_dsi_attach.
This makes a deadlock situation if
Some display panels would come up with a non-DSI output, those
can have an option to connect the DSI host by means of interface
bridge converter.
This DSI to non-DSI interface bridge converter would requires
DSI Host to handle drm bridge functionalities in order to DSI
Host to Interface bridge.
Get the display mode settings via mode_set bridge function
instead of explicitly de-reference.
Signed-off-by: Jagan Teki
---
Changes for v5:
- new patch
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 12 +++-
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 1 +
2 files changed, 12 insertions(+), 1
This patch add support for Bananapi S070WV20-CT16 panel to
BPI-M2M board.
This specific DSI Bananapi S070WV20-CT16 panel driver is not
available in upstream, added for testing purpose.
Signed-off-by: Jagan Teki
---
arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 40
1 file
Signed-off-by: Jagan Teki
---
arch/arm/boot/dts/sun8i-r16-renew-vista-e.dts | 79 +--
1 file changed, 73 insertions(+), 6 deletions(-)
diff --git a/arch/arm/boot/dts/sun8i-r16-renew-vista-e.dts
b/arch/arm/boot/dts/sun8i-r16-renew-vista-e.dts
index d28b7b35a3c5..c3ee6a879ddb
Bananapi S070WV20-CT16 is a pure RGB output panel with ICN6211
DSI/RGB convertor bridge.
Enable bridge along with associated panel.
Signed-off-by: Jagan Teki
---
arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 63
1 file changed, 63 insertions(+)
diff --git
