diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2023-09-11 11:46:15 -0300 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2023-09-21 09:48:09 -0300 |
| commit | 739c447205a02c364a9b6c48661455be872c8f1b (patch) | |
| tree | 7168b1eac6ced45a9d2b23a46db7f5817ed13673 | |
| parent | 991beb68137baa6bb631649124c085475cff470f (diff) | |
verdin-am62: fix mezzanine lvds overlays
The kernel device tree changed to by default enabling the DPI to DSI
bridge and sets up the port linking between the DSS and the bridge.
If the bridge is missing, then the DSS is will fail in probe and its
output towards the native LVDS pins will also not work.
Fix this by disabling the bridge node.
This prevents having an overlay for native LVDS and for DSI applied
concurrently.
With the DSI to HDMI adapter the touch controller and the HDMI bridge
use the same I2C address resulting in a not working touch.
Related-to: ELB-5372
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
| -rw-r--r-- | overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts | 10 | ||||
| -rw-r--r-- | overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts | 10 |
2 files changed, 20 insertions, 0 deletions
diff --git a/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts b/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts index c7ed3b6..e7e5b8f 100644 --- a/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts +++ b/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts @@ -54,6 +54,16 @@ status = "okay"; }; +/* + * If the bridge is missing setting up dss will fail. As this bridge + * isn't available on all SKU disable it here. + * Thus having an overlay for the DSI output enabled concurrently + * with this one will not work. + */ +&dsi_bridge { + status = "disabled"; +}; + &dss_ports { #address-cells = <1>; #size-cells = <0>; diff --git a/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts b/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts index 6caffae..16a796d 100644 --- a/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts +++ b/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts @@ -73,6 +73,16 @@ status = "okay"; }; +/* + * If the bridge is missing setting up dss will fail. As this bridge + * isn't available on all SKU disable it here. + * Thus having an overlay for the DSI output enabled concurrently + * with this one will not work. + */ +&dsi_bridge { + status = "disabled"; +}; + &dss_ports { #address-cells = <1>; #size-cells = <0>; |