linux-kernel - [PATCH 2/4] ARM: dts: at91: sama5d2: mark secumod as a GPIO controller

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Date:   Tue, 12 Nov 2019 07:19:51 +0000
From:   <Eugen.Hristev@...rochip.com>
To:     <robh+dt@...nel.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <Ludovic.Desroches@...rochip.com>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <andrei.stefanescu@...rochip.com>
Subject: [PATCH 2/4] ARM: dts: at91: sama5d2: mark secumod as a GPIO
 controller

From: Andrei Stefanescu <andrei.stefanescu@...rochip.com>

The Security Module exposes the PIOBU pins which an be used
as regular GPIOs. The PIOBU pins are special because they do
not lose their voltage during suspend-to-mem.

This patch marks the secumod as a GPIO controller.

Signed-off-by: Andrei Stefanescu <andrei.stefanescu@...rochip.com>
[razvan.stefanescu@...rochip.com Updated title]
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@...rochip.com>
---
 arch/arm/boot/dts/sama5d2.dtsi | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 4d3ba6d..1b6f44b 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -885,9 +885,12 @@
 				clocks = <&pmc PMC_TYPE_PERIPHERAL 18>;
 			};
 
-			secumod@...40000 {
+			pioBU: secumod@...40000 {
 				compatible = "atmel,sama5d2-secumod", "syscon";
 				reg = <0xfc040000 0x100>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
 			};
 
 			tdes@...44000 {
-- 
2.7.4