The MAX96712 can support both CSI-2 C-PHY and D-PHY bus. Document the
supported bus-types and make the property mandatory.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
Hi,
This is done in conjunction with adding C-PHY support to the driver,
patches on list. The current driver only supports D-PHY so this was
assumed in the driver.
There is a single user of this binding, r8a779a0-falcon-csi-dsi.dtsi. A
separate patch to update that binding with a bus-type property is be
submitted.
Without the property present the driver fall-back to D-PHY (even with
the C-PHY work applied). So this change is backward compatible with old
versions of the only effected DTS file.
---
.../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..fccbf287ff79 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 # CSI-2 C-PHY
+ - 4 # CSI-2 D-PHY
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>;
--
2.40.0
