linux-kernel - [PATCH] dt-bindings: soc: samsung: usi: refer to dtschema for children

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Message-Id: <20220208194119.46022-1-krzysztof.kozlowski@canonical.com>
Date:   Tue,  8 Feb 2022 20:41:19 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Sam Protsenko <semen.protsenko@...aro.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: soc: samsung: usi: refer to dtschema for children

Explicitly reference the dtschema for USI children implementing specific
serial protocol (I2C, SPI, UART).  The SPI schema is not yet accepted,
so it will be provided later.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 .../bindings/soc/samsung/exynos-usi.yaml      | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
index 58f2e9d8bb0e..f3aae7e0e2e6 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
@@ -18,11 +18,7 @@ description: |
   selects which particular function will be used.
 
   Refer to next bindings documentation for information on protocol subnodes that
-  can exist under USI node:
-
-  [1] Documentation/devicetree/bindings/serial/samsung_uart.yaml
-  [2] Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
-  [3] Documentation/devicetree/bindings/spi/spi-samsung.txt
+  can exist under USI node.
 
 properties:
   $nodename:
@@ -75,10 +71,17 @@ properties:
       This property is optional.
 
 patternProperties:
-  # All other properties should be child nodes
-  "^(serial|spi|i2c)@[0-9a-f]+$":
+  "^i2c@[0-9a-f]+$":
+    $ref: /schemas/i2c/i2c-exynos5.yaml
+    description: Child node describing underlying I2C
+
+  "^serial@[0-9a-f]+$":
+    $ref: /schemas/serial/samsung_uart.yaml
+    description: Child node describing underlying UART/serial
+
+  "^spi@[0-9a-f]+$":
     type: object
-    description: Child node describing underlying USI serial protocol
+    description: Child node describing underlying SPI
 
 required:
   - compatible
-- 
2.32.0