@@ -28,13 +28,19 @@ description: |
PDMAs can be configured via BCDMA split channel's peer registers to match with
the configuration of the legacy peripheral.
-allOf:
- - $ref: /schemas/dma/dma-controller.yaml#
- - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
-
properties:
compatible:
- const: ti,am64-dmss-bcdma
+ enum:
+ - ti,am62a-dmss-bcdma-csirx
+ - ti,am64-dmss-bcdma
+
+ reg:
+ minItems: 3
+ maxItems: 5
+
+ reg-names:
+ minItems: 3
+ maxItems: 5
"#dma-cells":
const: 3
@@ -65,19 +71,13 @@ properties:
cell 3: ASEL value for the channel
- reg:
- maxItems: 5
-
- reg-names:
- items:
- - const: gcfg
- - const: bchanrt
- - const: rchanrt
- - const: tchanrt
- - const: ringrt
-
msi-parent: true
+ power-domains:
+ description:
+ Power domain if available
+ maxItems: 1
+
ti,asel:
$ref: /schemas/types.yaml#/definitions/uint32
description: ASEL value for non slave channels
@@ -123,10 +123,51 @@ required:
- msi-parent
- ti,sci
- ti,sci-dev-id
- - ti,sci-rm-range-bchan
- - ti,sci-rm-range-tchan
- ti,sci-rm-range-rchan
+allOf:
+ - $ref: /schemas/dma/dma-controller.yaml#
+ - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,am62a-dmss-bcdma-csirx
+ then:
+ properties:
+ ti,sci-rm-range-bchan: false
+ ti,sci-rm-range-tchan: false
+
+ reg:
+ maxItems: 3
+
+ reg-names:
+ items:
+ - const: gcfg
+ - const: rchanrt
+ - const: ringrt
+
+ required:
+ - power-domains
+
+ else:
+ properties:
+ reg:
+ minItems: 5
+
+ reg-names:
+ items:
+ - const: gcfg
+ - const: bchanrt
+ - const: rchanrt
+ - const: tchanrt
+ - const: ringrt
+
+ required:
+ - ti,sci-rm-range-bchan
+ - ti,sci-rm-range-tchan
+
unevaluatedProperties: false
examples:
AM62A SoC has a dedicated BCDMA that serves Camera Serial Interface (CSI) IP. Add new compatible for the same. Unlike system BCDMA, this instance only has RX DMA channels and lack TX or block copy channel. Thus make those properties optional. Additionally CSI RX has independent power domain, add the binding for the same. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> --- v3: Add min/max constraints for reg-names and reg on per compatible basis v2: reorder compatibles alphabetically Fix reg defintion to min 3 and max 5 Keep top level constraints as is and further restrict variants within "if-else" blocks .../devicetree/bindings/dma/ti/k3-bcdma.yaml | 77 ++++++++++++++----- 1 file changed, 59 insertions(+), 18 deletions(-)