From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@free-electrons.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: Chen-Yu Tsai <wens@csie.org>,
linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: [PATCH v2 7/8] ARM: sun8i: a83t: Set clock accuracy for 24MHz oscillator
Date: Wed, 3 May 2017 11:09:28 +0800 [thread overview]
Message-ID: <20170503030929.28763-8-wens@csie.org> (raw)
In-Reply-To: <20170503030929.28763-1-wens@csie.org>
The datasheets for Allwinner SoCs set strict requirements on the
stability of the external crystal oscillators. Add the accuracy
for the main 24MHz oscillator to the device tree.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm/boot/dts/sun8i-a83t.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index c9a5d07b2ada..e12dd7170b8f 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -126,6 +126,7 @@
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
+ clock-accuracy = <50000>;
clock-output-names = "osc24M";
};
--
2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: wens@csie.org (Chen-Yu Tsai)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 7/8] ARM: sun8i: a83t: Set clock accuracy for 24MHz oscillator
Date: Wed, 3 May 2017 11:09:28 +0800 [thread overview]
Message-ID: <20170503030929.28763-8-wens@csie.org> (raw)
In-Reply-To: <20170503030929.28763-1-wens@csie.org>
The datasheets for Allwinner SoCs set strict requirements on the
stability of the external crystal oscillators. Add the accuracy
for the main 24MHz oscillator to the device tree.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm/boot/dts/sun8i-a83t.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index c9a5d07b2ada..e12dd7170b8f 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -126,6 +126,7 @@
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
+ clock-accuracy = <50000>;
clock-output-names = "osc24M";
};
--
2.11.0
next prev parent reply other threads:[~2017-05-03 3:09 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-03 3:09 [PATCH v2 0/8] clk: sunxi-ng: Add support for A83T CCU Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 1/8] dt-bindings: clock: sunxi-ccu: Add compatible string " Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 2/8] clk: Provide option to query hardware for clk phase Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 3/8] clk: sunxi-ng: Add class of phase clocks supporting MMC new timing modes Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 4/8] clk: sunxi-ng: Support multiple variable pre-dividers Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 5/8] clk: sunxi-ng: Add driver for A83T CCU Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 6/8] ARM: sun8i: a83t: Add CCU device nodes Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai [this message]
2017-05-03 3:09 ` [PATCH v2 7/8] ARM: sun8i: a83t: Set clock accuracy for 24MHz oscillator Chen-Yu Tsai
2017-05-03 3:09 ` [PATCH v2 8/8] ARM: sun8i: a83t: Switch to CCU device tree binding macros Chen-Yu Tsai
2017-05-03 3:09 ` Chen-Yu Tsai
-- strict thread matches above, loose matches on Subject: below --
2017-05-03 3:16 [PATCH v2 0/8] clk: sunxi-ng: Add support for A83T CCU Chen-Yu Tsai
2017-05-03 3:16 ` [PATCH v2 7/8] ARM: sun8i: a83t: Set clock accuracy for 24MHz oscillator Chen-Yu Tsai
2017-05-03 3:16 ` Chen-Yu Tsai
2017-05-03 3:16 ` Chen-Yu Tsai
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