Multiple ADMA Channel page hardware support has been added from
TEGRA186 and onwards. Update the DT binding to use any of the
ADMA channel page address space region.
Signed-off-by: Mohan Kumar D <mkumard@xxxxxxxxxx>
---
.../bindings/dma/nvidia,tegra210-adma.yaml | 60 +++++++++++++++++--
1 file changed, 56 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
index 877147e95ecc..d3f8c269916c 100644
--- a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
@@ -13,9 +13,6 @@ description: |
maintainers:
- Jon Hunter <jonathanh@xxxxxxxxxx>
-allOf:
- - $ref: dma-controller.yaml#
-
properties:
compatible:
oneOf:
@@ -29,7 +26,19 @@ properties:
- const: nvidia,tegra186-adma
reg:
- maxItems: 1
+ description:
+ The 'page' region describes the address space of the page
+ used for accessing the DMA channel registers. The 'global'
+ region describes the address space of the global DMA registers.
+ In the absence of the 'reg-names' property, there must be a
+ single entry that covers the address space of the global DMA
+ registers and the DMA channel registers.
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ minItems: 1
+ maxItems: 2
interrupts:
description: |
@@ -63,6 +72,49 @@ required:
- clocks
- clock-names
+allOf:
+ - $ref: dma-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra210-adma
+ then:
+ properties:
+ reg:
+ items:
+ - description: Full address space range of DMA registers.
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra186-adma
+ then:
+ anyOf:
+ - properties:
+ reg:
+ items:
+ - description: Full address space range of DMA registers.
+ - properties:
+ reg:
+ items:
+ - description: Channel Page address space range of DMA registers.
+ reg-names:
+ items:
+ - const: page
+ - properties:
+ reg:
+ items:
+ - description: Channel Page address space range of DMA registers.
+ - description: Global Page address space range of DMA registers.
+ reg-names:
+ items:
+ - const: page
+ - const: global
+
additionalProperties: false
examples:
--
2.25.1
