[PATCH 2/8] dt-bindings: dma: nvidia,tegra186-gpc-dma: Make reset optional

[Akhil R <akhilrajeev@nvidia.com>]

In Tegra264 and Tegra234, GPCDMA reset control is not exposed to Linux
and is handled by BPMP. In Tegra234 BPMP supported a dummy reset which
just return success on reset without doing an actual reset. This as well
is not supported in Tegra264 BPMP. Therefore mark 'reset' and 'reset-names'
property as required only for devices prior to Tegra234.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
---
 .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
index 542e9cb9f641..9457d406428f 100644
--- a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
@@ -16,9 +16,6 @@ maintainers:
   - Rajesh Gumasta <rgumasta@nvidia.com>
   - Akhil R <akhilrajeev@nvidia.com>
 
-allOf:
-  - $ref: dma-controller.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -68,12 +65,24 @@ required:
   - compatible
   - reg
   - interrupts
-  - resets
-  - reset-names
   - "#dma-cells"
   - iommus
   - dma-channel-mask
 
+allOf:
+  - $ref: dma-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra186-gpcdma
+              - nvidia,tegra194-gpcdma
+      then:
+        required:
+          - resets
+          - reset-names
+
 additionalProperties: false
 
 examples:
-- 
2.50.1