From:   Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
To:     Tomasz Figa <tomasz.figa@gmail.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Sylwester Nawrocki <s.nawrocki@samsung.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-gpio@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Sam Protsenko <semen.protsenko@linaro.org>,
        Chanho Park <chanho61.park@samsung.com>,
        Alim Akhtar <alim.akhtar@gmail.com>
Subject: [PATCH v2 25/28] dt-bindings: pinctrl: samsung: describe Exynos850 and ExynosAutov9 wake-ups
Date:   Tue, 11 Jan 2022 21:17:19 +0100
Message-Id: <20220111201722.327219-19-krzysztof.kozlowski@canonical.com>
In-Reply-To: <20220111201426.326777-1-krzysztof.kozlowski@canonical.com>
References: <20220111201426.326777-1-krzysztof.kozlowski@canonical.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Older Samsung Exynos SoC pin controller nodes (Exynos3250, Exynos4,
Exynos5, Exynos5433) with external wake-up interrupts, expected to have
one interrupt for multiplexing these wake-up interrupts.  Also they
expected to have exactly one pin controller capable of external wake-up
interrupts.

It seems however that newer ARMv8 Exynos SoC like Exynos850 and
ExynosAutov9 have differences of their pin controller node capable of
external wake-up interrupts:
1. No multiplexed external wake-up interrupt, only direct,
2. More than one pin controller capable of external wake-up interrupts.

Add dedicated Exynos850 and ExynosAutov9 compatibles.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
 .../samsung,pinctrl-wakeup-interrupt.yaml     | 27 ++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
index 6b684a53119b..a822f70f5702 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml
@@ -16,9 +16,12 @@ description: |
   controller.
 
   External wake-up interrupts for Samsung S3C/S5P/Exynos SoC pin controller.
-  Only one pin-controller device node can include external wake-up interrupts
-  child node (in other words, only one External wake-up interrupts
+  For S3C24xx, S3C64xx, S5PV210 and Exynos4210 compatible wake-up interrupt
+  controllers, only one pin-controller device node can include external wake-up
+  interrupts child node (in other words, only one External wake-up interrupts
   pin-controller is supported).
+  For newer controllers, multiple pin-controller device node can include
+  external wake-up interrupts child node.
 
   See also Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml for
   additional information and example.
@@ -32,6 +35,8 @@ properties:
       - samsung,s5pv210-wakeup-eint
       - samsung,exynos4210-wakeup-eint
       - samsung,exynos7-wakeup-eint
+      - samsung,exynos850-wakeup-eint
+      - samsung,exynosautov9-wakeup-eint
 
   interrupts:
     description:
@@ -41,7 +46,6 @@ properties:
 
 required:
   - compatible
-  - interrupts
 
 allOf:
   - if:
@@ -56,6 +60,8 @@ allOf:
         interrupts:
           minItems: 6
           maxItems: 6
+      required:
+        - interrupts
 
   - if:
       properties:
@@ -67,6 +73,8 @@ allOf:
         interrupts:
           minItems: 4
           maxItems: 4
+      required:
+        - interrupts
 
   - if:
       properties:
@@ -81,5 +89,18 @@ allOf:
         interrupts:
           minItems: 1
           maxItems: 1
+      required:
+        - interrupts
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynos850-wakeup-eint
+              - samsung,exynosautov9-wakeup-eint
+    then:
+      properties:
+        interrupts: false
 
 additionalProperties: false
-- 
2.32.0