[PATCH 1/3] dt-bindings: pinctrl: samsung: use Exynos7 fallbacks for newer wake-up controllers

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

Older ARM8 SoCs like Exynos5433, Exynos7 and Exynos7885 have the pin
controller with wake-up interrupts muxed, thus the wake-up interrupt
controller device node has interrupts property, while its pin banks
might not (because they are muxed by the wake-up controller).

Newer SoCs like Exynos850 and ExynosAutov9 do not used muxed wake-up
interrupts:
1. Wake-up interrupt controller device node has no interrupts,
2. Its pin banks have interrupts (since there is no muxing).

Their programming interface is however still compatible with Exynos7,
thus change the bindings to express this: retain compatibility with
Exynos7 and add new compatibility fallback of Exynos850 in newer
designs.

No driver changes are needed.  This is necessary only to properly
describe DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

---

Cc: Peter Griffin <peter.griffin@xxxxxxxxxx>
Cc: semen.protsenko@xxxxxxxxxx
Cc: Jaewon Kim <jaewon02.kim@xxxxxxxxxxx>
---
 .../samsung,pinctrl-wakeup-interrupt.yaml     | 25 +++++++++++--------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
index 1b75abebb953..2bafa867aea2 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
@@ -36,13 +36,17 @@ properties:
           - samsung,s5pv210-wakeup-eint
           - samsung,exynos4210-wakeup-eint
           - samsung,exynos7-wakeup-eint
-          - samsung,exynos850-wakeup-eint
-          - samsung,exynosautov9-wakeup-eint
-          - samsung,exynosautov920-wakeup-eint
       - items:
           - enum:
               - samsung,exynos5433-wakeup-eint
               - samsung,exynos7885-wakeup-eint
+              - samsung,exynos850-wakeup-eint
+          - const: samsung,exynos7-wakeup-eint
+      - items:
+          - enum:
+              - samsung,exynosautov9-wakeup-eint
+              - samsung,exynosautov920-wakeup-eint
+          - const: samsung,exynos850-wakeup-eint
           - const: samsung,exynos7-wakeup-eint
 
   interrupts:
@@ -86,11 +90,14 @@ allOf:
   - if:
       properties:
         compatible:
-          contains:
-            enum:
-              - samsung,s5pv210-wakeup-eint
-              - samsung,exynos4210-wakeup-eint
-              - samsung,exynos7-wakeup-eint
+          # Match without "contains", to skip newer variants which are still
+          # compatible with samsung,exynos7-wakeup-eint
+          enum:
+            - samsung,s5pv210-wakeup-eint
+            - samsung,exynos4210-wakeup-eint
+            - samsung,exynos5433-wakeup-eint
+            - samsung,exynos7-wakeup-eint
+            - samsung,exynos7885-wakeup-eint
     then:
       properties:
         interrupts:
@@ -105,8 +112,6 @@ allOf:
           contains:
             enum:
               - samsung,exynos850-wakeup-eint
-              - samsung,exynosautov9-wakeup-eint
-              - samsung,exynosautov920-wakeup-eint
     then:
       properties:
         interrupts: false
-- 
2.34.1