linux-kernel - [PATCH v2 12/14] ARM: dts: sun8i: r40: Add clock accuracy for external oscillators

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Message-Id: <20181203145825.20511-13-wens@csie.org>
Date:   Mon,  3 Dec 2018 22:58:23 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
        linux-rtc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com,
        Corentin Labbe <clabbe.montjoie@...il.com>
Subject: [PATCH v2 12/14] ARM: dts: sun8i: r40: Add clock accuracy for external oscillators

The R40 datasheet specifies a tolerance range for the external
oscillators used. Add them to the device tree as the clock accuracy.

Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>
Tested-by: Corentin Labbe <clabbe.montjoie@...il.com>
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index 6f4c9ca5a3ee..a8917f8b1c80 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -61,6 +61,7 @@
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <24000000>;
+			clock-accuracy = <50000>;
 			clock-output-names = "osc24M";
 		};
 
@@ -68,6 +69,7 @@
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <32768>;
+			clock-accuracy = <20000>;
 			clock-output-names = "osc32k";
 		};
 	};
-- 
2.20.0.rc1