DP DMA has own power domain that's why describe required power-domain
property.
Signed-off-by: Michal Simek <michal.simek@xxxxxxx>
---
Changes in v3:
- make power-domains as required property
- also update commit message
Changes in v2:
- rewrite commit message - requested by Krzysztof
The commit b06112cd5e08 ("arm64: dts: zynqmp: Add power domain for the
DisplayPort DMA controller") added this property already in Linux that's
why the patch is also fixing dts_check warnings.
In v2 I got ack from Krzysztof but not adding it because of additional
discussion about required property in v3.
https://lore.kernel.org/r/029ba923-d13e-ea7c-018d-95e179dda2e5@xxxxxxxxxx
---
.../devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
index d6cbd95ec26d..2128f4645c98 100644
--- a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
+++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml
@@ -41,6 +41,9 @@ properties:
clock-names:
const: axi_clk
+ power-domains:
+ maxItems: 1
+
required:
- "#dma-cells"
- compatible
@@ -48,12 +51,14 @@ required:
- interrupts
- clocks
- clock-names
+ - power-domains
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/xlnx-zynqmp-power.h>
dma: dma-controller@fd4c0000 {
compatible = "xlnx,zynqmp-dpdma";
@@ -63,6 +68,7 @@ examples:
clocks = <&dpdma_clk>;
clock-names = "axi_clk";
#dma-cells = <1>;
+ power-domains = <&zynqmp_firmware PD_DP>;
};
...
--
2.36.1
