[PATCH v4 01/29] dt-bindings: display: rockchip,inno-hdmi: Document RK3128 compatible

Alex Bee
2023-12-22T17:42:46Z

The integration for this SoC is different from the currently existing: It
needs it's PHY's reference clock rate to calculate the DDC bus frequency
correctly. The controller is also part of a powerdomain, so this gets added
as an mandatory property for this variant.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
---
changes in v2:
- clarify that the controller itself is part of the powerdomain
- simplify clock-names
- made power-domains property only allowed (and required) for new variant

changes in v3:
- collect RB

changes in v4:
- none

.../display/rockchip/rockchip,inno-hdmi.yaml | 40 ++++++++++++++++++-
1 file changed, 38 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
index 96889c86849a..be78dcfa1c76 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
@@ -14,6 +14,7 @@ properties:
compatible:
enum:
- rockchip,rk3036-inno-hdmi
+ - rockchip,rk3128-inno-hdmi

reg:
maxItems: 1
@@ -22,10 +23,19 @@ properties:
maxItems: 1

clocks:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: The HDMI controller main clock
+ - description: The HDMI PHY reference clock

clock-names:
- const: pclk
+ minItems: 1
+ items:
+ - const: pclk
+ - const: ref
+
+ power-domains:
+ maxItems: 1

ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -55,6 +65,32 @@ required:
- pinctrl-names
- ports

+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rk3036-inno-hdmi
+
+ then:
+ properties:
+ power-domains: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rk3128-inno-hdmi
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ clock-names:
+ minItems: 2
+ required:
+ - power-domains
+
additionalProperties: false