The MAX96712 can support both a CSI-2 C-PHY and D-PHY bus. The initial
staging driver however only supported D-PHY and the bus-type property
was left optional.
In preparation for adding C-PHY support to the staging driver make the
bus-type property mandatory as it is needed to select the correct PHY
mode. Without the bus-type property present, the driver falls-back to
D-PHY mode, so the change is functionally backward compatible with old
DTS files lacking the property.
The only in-tree DTS file (renesas/r8a779a0-falcon-csi-dsi.dtsi) that
lacked the property uses D-PHY and have been updated.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
* Changes since v1
- Use symbolic names in comments for the bus-type properties.
- Improve the commit message.
- Rebased to v6.4-rc1.
---
.../devicetree/bindings/media/i2c/maxim,max96712.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
index 444f24838d3d..6c72e77b927c 100644
--- a/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
@@ -65,9 +65,14 @@ properties:
properties:
data-lanes: true
+ bus-type:
+ enum:
+ - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
+ - 4 # MEDIA_BUS_TYPE_CSI2_DPHY
required:
- data-lanes
+ - bus-type
required:
- port@4
@@ -82,6 +87,7 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/media/video-interfaces.h>
i2c@e6508000 {
#address-cells = <1>;
@@ -101,6 +107,7 @@ examples:
port@4 {
reg = <4>;
max96712_out0: endpoint {
+ bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
clock-lanes = <0>;
data-lanes = <1 2 3 4>;
remote-endpoint = <&csi40_in>;
--
2.40.1
