From: Chen-Yu Tsai <wens@csie.org>
To: Mark Brown <broonie@kernel.org>, Lee Jones <lee.jones@linaro.org>,
Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-clk@vger.kernel.org
Subject: [PATCH 10/10] ARM: dts: sun9i: Switch to the AC100 RTC clock outputs for osc32k
Date: Tue, 14 Jun 2016 10:17:58 +0800 [thread overview]
Message-ID: <1465870678-30128-12-git-send-email-wens@csie.org> (raw)
In-Reply-To: <1465870678-30128-1-git-send-email-wens@csie.org>
The 32.768 kHz clock inside the A80 SoC is fed from an external source,
typically the AC100 RTC module.
Make the osc32k placeholder a fixed-factor clock so board dts files can
specify its source.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 5 +++++
arch/arm/boot/dts/sun9i-a80-optimus.dts | 5 +++++
arch/arm/boot/dts/sun9i-a80.dtsi | 9 +++------
3 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
index 65f4f32f89ad..b6299a9c14e3 100644
--- a/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
+++ b/arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
@@ -103,6 +103,11 @@
allwinner,drive = <SUN4I_PINCTRL_40_MA>;
};
+&osc32k {
+ /* osc32k input is from AC100 */
+ clocks = <&ac100_rtc 0>;
+};
+
&pio {
led_pins_cubieboard4: led-pins@0 {
allwinner,pins = "PH6", "PH17";
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index 3b013dc5fef1..2f079cbd2025 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -152,6 +152,11 @@
status = "okay";
};
+&osc32k {
+ /* osc32k input is from AC100 */
+ clocks = <&ac100_rtc 0>;
+};
+
&pio {
led_pins_optimus: led-pins@0 {
allwinner,pins = "PH0", "PH1";
diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index f68b3242b33a..dd11115ec087 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -148,15 +148,12 @@
/*
* The 32k clock is from an external source, normally the
- * AC100 codec/RTC chip. This clock is by default enabled
- * and clocked at 32768 Hz, from the oscillator connected
- * to the AC100. It is configurable, but no such driver or
- * bindings exist yet.
+ * AC100 codec/RTC chip. This serves as a placeholder for
+ * board dts files to specify the source.
*/
osc32k: osc32k_clk {
#clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <32768>;
+ compatible = "fixed-factor-clock";
clock-output-names = "osc32k";
};
--
2.8.1
prev parent reply other threads:[~2016-06-14 2:18 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-14 2:17 [PATCH 00/10] mfd: ac100: Add support for X-Powers AC100 audio codec / RTC combo IC Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 01/10] regmap: Support bulk writes for devices without raw formatting Chen-Yu Tsai
2016-06-29 18:48 ` Applied "regmap: Support bulk writes for devices without raw formatting" to the regmap tree Mark Brown
2016-06-14 2:17 ` [PATCH 02/10] mfd: ac100: Add device tree bindings for X-Powers AC100 codec/RTC combo IC Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 03/10] mfd: ac100: Add driver for X-Powers AC100 audio codec / RTC " Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 03/10] mfd: " Chen-Yu Tsai
2016-06-14 2:20 ` Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 04/10] rtc: ac100: Add RTC driver for X-Powers AC100 Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 05/10] rtc: ac100: Add clk output support Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 06/10] ARM: dts: sun9i: a80-optimus: Add device node for AC100 Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 07/10] ARM: dts: sun9i: cubieboard4: " Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 08/10] ARM: dts: sun9i: cubieboard4: Order nodes by alphabetical order Chen-Yu Tsai
2016-06-14 2:17 ` [PATCH 09/10] ARM: dts: sun9i: a80-optimus: " Chen-Yu Tsai
2016-06-14 2:17 ` Chen-Yu Tsai [this message]
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