linux-kernel - [PATCH] ARM: dts: stm32: Enable high resolution timer

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Date:   Fri, 27 Sep 2019 10:48:19 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...com>
To:     <alexandre.torgue@...com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>
CC:     <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH] ARM: dts: stm32: Enable high resolution timer

Adding always-on makes arm arch_timer claim to be an high resolution timer.
That is possible because power mode won't stop clocking the timer.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654a0a39..74f64745d60d 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -50,6 +50,7 @@
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 		interrupt-parent = <&intc>;
+		always-on;
 	};
 
 	clocks {
-- 
2.15.0