linux-kernel - [PATCH 2/3] ARM: dts: gr-peach: Enable MTU2 timer pulse unit

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Date:   Thu,  5 Oct 2017 10:58:19 +0200
From:   Jacopo Mondi <jacopo+renesas@...ndi.org>
To:     horms@...ge.net.au, geert@...ux-m68k.org, magnus.damm@...il.com,
        robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] ARM: dts: gr-peach: Enable MTU2 timer pulse unit

MTU2 multi-function/multi-channel timer/counter is not enabled for
GR-Peach board. The timer is used as clock event source to schedule
wake-ups, and without this enabled all sleeps not performed through busy
waiting hang the board.

Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.org>
---
 arch/arm/boot/dts/r7s72100-gr-peach.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/r7s72100-gr-peach.dts b/arch/arm/boot/dts/r7s72100-gr-peach.dts
index 20309ac..ad6a627 100644
--- a/arch/arm/boot/dts/r7s72100-gr-peach.dts
+++ b/arch/arm/boot/dts/r7s72100-gr-peach.dts
@@ -78,6 +78,10 @@
 	clock-frequency = <48000000>;
 };
 
+&mtu2 {
+	status = "okay";
+};
+
 &scif2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&scif2_pins>;
-- 
2.7.4