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From:   Eugeniu Rosca <erosca@de.adit-jv.com>
To:     <linux-renesas-soc@vger.kernel.org>, <linux-gpio@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     Geert Uytterhoeven <geert+renesas@glider.be>,
        Linus Walleij <linus.walleij@linaro.org>,
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        Wolfram Sang <wsa+renesas@sang-engineering.com>,
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        Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
        Biju Das <biju.das@bp.renesas.com>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        Chris Paterson <chris.paterson2@renesas.com>,
        Yusuke Ashiduka <ashiduka@fujitsu.com>,
        Torii Kenichi <torii.ken1@jp.fujitsu.com>,
        Fukui Yohhei <yohhei.fukui@denso-ten.com>,
        Yasushi Asano <yasano@jp.adit-jv.com>,
        Yuichi Kusakabe <yuichi.kusakabe@denso-ten.com>,
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        Jiada Wang <jiada_wang@mentor.com>,
        Eugeniu Rosca <erosca@de.adit-jv.com>,
        Eugeniu Rosca <rosca.eugeniu@gmail.com>
Subject: [RFC PATCH 1/3] dt-bindings: gpio-rcar: Add optional use-alternative-interrupt property
Date:   Wed, 22 Apr 2020 12:10:24 +0200
Message-ID: <20200422101026.9220-2-erosca@de.adit-jv.com>
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From: Torii Kenichi <torii.ken1@jp.fujitsu.com>

When setting this property, you must set alternate interrupt number in
the 'interrupts' property.

Signed-off-by: Torii Kenichi <torii.ken1@jp.fujitsu.com>
[erosca: tidy up the descriptions/comments]
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
---
 Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index 10dce84b1545..aa5aea90431a 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -50,6 +50,9 @@ Optional properties:
   - clocks: Must contain a reference to the functional clock.  The property is
     mandatory if the hardware implements a controllable functional clock for
     the GPIO instance.
+  - use-alternative-interrupt: Use 'alternative' GPIO interrupt instead
+    of 'normal' GPIO interrupt. When you specify this property, you must
+    also change the 'interrupts' DT property.
 
   - gpio-reserved-ranges: See gpio.txt.
 
-- 
2.26.0