Add dt-bindings documentation of SPI NAND controller
for MediaTek MT7986 SoC platform. And add optional
nfi_hclk property which is needed for MT7986.
Signed-off-by: Xiangsheng Hou <xiangsheng.hou@xxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
.../bindings/spi/mediatek,spi-mtk-snfi.yaml | 51 +++++++++++++++----
1 file changed, 42 insertions(+), 9 deletions(-)
diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
index 6e6e02c91780..bab23f1b11fd 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
@@ -18,14 +18,12 @@ description: |
using the accompanying ECC engine. There should be only one spi
slave device following generic spi bindings.
-allOf:
- - $ref: /schemas/spi/spi-controller.yaml#
-
properties:
compatible:
enum:
- mediatek,mt7622-snand
- mediatek,mt7629-snand
+ - mediatek,mt7986-snand
reg:
items:
@@ -36,14 +34,12 @@ properties:
- description: NFI interrupt
clocks:
- items:
- - description: clock used for the controller
- - description: clock used for the SPI bus
+ minItems: 2
+ maxItems: 3
clock-names:
- items:
- - const: nfi_clk
- - const: pad_clk
+ minItems: 2
+ maxItems: 3
nand-ecc-engine:
description: device-tree node of the accompanying ECC engine.
@@ -57,6 +53,43 @@ required:
- clock-names
- nand-ecc-engine
+allOf:
+ - $ref: /schemas/spi/spi-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt7622-snand
+ - mediatek,mt7629-snand
+ then:
+ properties:
+ clocks:
+ items:
+ - description: clock used for the controller
+ - description: clock used for the SPI bus
+ clock-names:
+ items:
+ - const: nfi_clk
+ - const: pad_clk
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt7986-snand
+ then:
+ properties:
+ clocks:
+ items:
+ - description: clock used for the controller
+ - description: clock used for the SPI bus
+ - description: clock used for the AHB bus
+ clock-names:
+ items:
+ - const: nfi_clk
+ - const: pad_clk
+ - const: nfi_hclk
+
unevaluatedProperties: false
examples:
--
2.25.1
