Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Krzysztof Kozlowski <krzk@kernel.org>
To:     Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        Jonathan Bakker <xc-racer2@live.ca>,
        =?UTF-8?q?Pawe=C5=82=20Chmiel?= <pawel.mikolaj.chmiel@gmail.com>,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org
Subject: [PATCH 02/25] dt-bindings: iio: adc: exynos-adc: require second interrupt with touch screen
Date:   Mon,  7 Sep 2020 18:11:18 +0200
Message-Id: <20200907161141.31034-3-krzk@kernel.org>
In-Reply-To: <20200907161141.31034-1-krzk@kernel.org>
References: <20200907161141.31034-1-krzk@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The ADC in S3C/S5P/Exynos SoCs can be used also for handling touch
screen.  In such case the second interrupt is required.  This second
interrupt can be anyway provided, even without touch screens.  This
fixes dtbs_check warnings like:

  arch/arm/boot/dts/s5pv210-aquila.dt.yaml: adc@e1700000: interrupts: [[23], [24]] is too long

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 .../bindings/iio/adc/samsung,exynos-adc.yaml      | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
index cc3c8ea6a894..89b4f9c252a6 100644
--- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
@@ -41,7 +41,10 @@ properties:
     maxItems: 2
 
   interrupts:
-    maxItems: 1
+    description:
+      ADC interrupt followed by optional touchscreen interrupt.
+    minItems: 1
+    maxItems: 2
 
   "#io-channel-cells":
     const: 1
@@ -107,6 +110,16 @@ allOf:
           items:
             - const: adc
 
+  - if:
+      properties:
+        has-touchscreen:
+          true
+    then:
+      properties:
+        interrupts:
+          minItems: 2
+          maxItems: 2
+
 examples:
   - |
     adc: adc@12d10000 {
-- 
2.17.1