linux-kernel - [PATCH 3/3] ARM: dts: bcm2711: Enable HWRNG support

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Message-ID: <20191118075807.165126-4-stephen@brennan.io>
Date:   Sun, 17 Nov 2019 23:58:07 -0800
From:   Stephen Brennan <stephen@...nnan.io>
To:     stephen@...nnan.io
Cc:     Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Eric Anholt <eric@...olt.net>,
        Stefan Wahren <wahrenst@....net>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org
Subject: [PATCH 3/3] ARM: dts: bcm2711: Enable HWRNG support

From: Stefan Wahren <wahrenst@....net>

This enables hardware random number generator support for the BCM2711
on the Raspberry Pi 4 board.

Signed-off-by: Stefan Wahren <wahrenst@....net>
Signed-off-by: Stephen Brennan <stephen@...nnan.io>
---
 arch/arm/boot/dts/bcm2711.dtsi | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index ac83dac2e6ba..2c19e5de284a 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -92,10 +92,9 @@ pm: watchdog@...00000 {
 		};
 
 		rng@...04000 {
+			compatible = "brcm,bcm2711-rng200";
 			interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
-
-			/* RNG is incompatible with brcm,bcm2835-rng */
-			status = "disabled";
+			status = "okay";
 		};
 
 		uart2: serial@...01400 {
-- 
2.24.0