linux-kernel - [PATCH mvebu v3 01/10] arm64: dts: marvell: armada-37xx: add syscon compatible to NB clk node

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Date:   Mon, 22 Feb 2021 20:41:49 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Gregory Clement <gregory.clement@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Cc:     Marek Behún <kabel@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Tomasz Maciej Nowak <tmn505@...il.com>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Andre Heider <a.heider@...il.com>,
        Vladimir Vid <vladimir.vid@...tura.hr>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Gérald Kerma <gerald@....net>,
        Konstantin Porotchkin <kostap@...vell.com>
Subject: [PATCH mvebu v3 01/10] arm64: dts: marvell: armada-37xx: add syscon compatible to NB clk node

From: Marek Behún <kabel@...nel.org>

Add "syscon" compatible to the North Bridge clocks node to allow the
cpufreq driver to access these registers via syscon API.

This is needed for a fix of cpufreq driver.

Signed-off-by: Marek Behún <kabel@...nel.org>
Tested-by: Pali Rohár <pali@...nel.org>
Tested-by: Tomasz Maciej Nowak <tmn505@...il.com>
Tested-by: Anders Trier Olesen <anders.trier.olesen@...il.com>
Tested-by: Philip Soares <philips@...isense.com>
Fixes: e8d66e7927b2 ("arm64: dts: marvell: armada-37xx: add nodes...")
Cc: stable@...r.kernel.org
---
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index d5b6c0a1c54a..a89e47d95eef 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -156,7 +156,8 @@
 			};
 
 			nb_periph_clk: nb-periph-clk@...00 {
-				compatible = "marvell,armada-3700-periph-clock-nb";
+				compatible = "marvell,armada-3700-periph-clock-nb",
+					     "syscon";
 				reg = <0x13000 0x100>;
 				clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>,
 				<&tbg 3>, <&xtalclk>;
-- 
2.20.1