From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@bootlin.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Alessandro Zummo <a.zummo@towertech.it>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.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-rtc@vger.kernel.org,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator
Date: Wed, 28 Nov 2018 17:30:01 +0800 [thread overview]
Message-ID: <20181128093013.24442-5-wens@csie.org> (raw)
In-Reply-To: <20181128093013.24442-1-wens@csie.org>
Experiments showed that on at least the H3/H5/A64 the RTC's internal
oscillator also feeds the CPUS mux in the PRCM.
Export this clock through the device tree, instead of having to use
a dummy fixed-clock device node, for the PRCM to consume. This will
properly describe the relationship between the clocks.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
index 78c4fb472eb7..1bd37faadecb 100644
--- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
@@ -24,7 +24,7 @@ Required properties:
Required properties for new device trees
- clocks : phandle to the 32kHz external oscillator
-- clock-output-names : names of the two clock outputs. See below.
+- clock-output-names : names of the three clock outputs. See below.
- #clock-cells : must be equal to 1.
The RTC provides the following clocks at the given indices:
@@ -32,6 +32,7 @@ The RTC provides the following clocks at the given indices:
- 1: LOSC external output, known as X32KFOUT in the datasheet.
This clock is not available on the A31 and is deprecated for old
device trees still using the "allwinner,sun6i-a31-rtc" compatible.
+- 2: InternalOSC, or internal RC oscillator
Example:
--
2.20.0.rc1
WARNING: multiple messages have this Message-ID (diff)
From: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
To: Maxime Ripard
<maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>,
Alexandre Belloni
<alexandre.belloni-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>,
Alessandro Zummo
<a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org>,
Michael Turquette
<mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
Stephen Boyd <sboyd-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-rtc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator
Date: Wed, 28 Nov 2018 17:30:01 +0800 [thread overview]
Message-ID: <20181128093013.24442-5-wens@csie.org> (raw)
In-Reply-To: <20181128093013.24442-1-wens-jdAy2FN1RRM@public.gmane.org>
Experiments showed that on at least the H3/H5/A64 the RTC's internal
oscillator also feeds the CPUS mux in the PRCM.
Export this clock through the device tree, instead of having to use
a dummy fixed-clock device node, for the PRCM to consume. This will
properly describe the relationship between the clocks.
Signed-off-by: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
---
Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
index 78c4fb472eb7..1bd37faadecb 100644
--- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
@@ -24,7 +24,7 @@ Required properties:
Required properties for new device trees
- clocks : phandle to the 32kHz external oscillator
-- clock-output-names : names of the two clock outputs. See below.
+- clock-output-names : names of the three clock outputs. See below.
- #clock-cells : must be equal to 1.
The RTC provides the following clocks at the given indices:
@@ -32,6 +32,7 @@ The RTC provides the following clocks at the given indices:
- 1: LOSC external output, known as X32KFOUT in the datasheet.
This clock is not available on the A31 and is deprecated for old
device trees still using the "allwinner,sun6i-a31-rtc" compatible.
+- 2: InternalOSC, or internal RC oscillator
Example:
--
2.20.0.rc1
WARNING: multiple messages have this Message-ID (diff)
From: wens@csie.org (Chen-Yu Tsai)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator
Date: Wed, 28 Nov 2018 17:30:01 +0800 [thread overview]
Message-ID: <20181128093013.24442-5-wens@csie.org> (raw)
In-Reply-To: <20181128093013.24442-1-wens@csie.org>
Experiments showed that on at least the H3/H5/A64 the RTC's internal
oscillator also feeds the CPUS mux in the PRCM.
Export this clock through the device tree, instead of having to use
a dummy fixed-clock device node, for the PRCM to consume. This will
properly describe the relationship between the clocks.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
index 78c4fb472eb7..1bd37faadecb 100644
--- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
@@ -24,7 +24,7 @@ Required properties:
Required properties for new device trees
- clocks : phandle to the 32kHz external oscillator
-- clock-output-names : names of the two clock outputs. See below.
+- clock-output-names : names of the three clock outputs. See below.
- #clock-cells : must be equal to 1.
The RTC provides the following clocks at the given indices:
@@ -32,6 +32,7 @@ The RTC provides the following clocks at the given indices:
- 1: LOSC external output, known as X32KFOUT in the datasheet.
This clock is not available on the A31 and is deprecated for old
device trees still using the "allwinner,sun6i-a31-rtc" compatible.
+- 2: InternalOSC, or internal RC oscillator
Example:
--
2.20.0.rc1
next prev parent reply other threads:[~2018-11-28 9:32 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 9:29 [PATCH 00/15] rtc: sun6i: clock rework and pre-H6 SoC support Chen-Yu Tsai
2018-11-28 9:29 ` Chen-Yu Tsai
2018-11-28 9:29 ` Chen-Yu Tsai
2018-11-28 9:29 ` [PATCH 01/15] dt-bindings: rtc: sun6i-rtc: Rewrite clock outputs as a list Chen-Yu Tsai
2018-11-28 9:29 ` Chen-Yu Tsai
2018-11-28 10:17 ` Maxime Ripard
2018-11-28 10:17 ` Maxime Ripard
2018-11-28 10:17 ` Maxime Ripard
2018-11-28 9:29 ` [PATCH 02/15] dt-bindings: rtc: sun6i-rtc: Add compatible strings for pre-H6 variants Chen-Yu Tsai
2018-11-28 9:29 ` Chen-Yu Tsai
2018-11-28 9:29 ` Chen-Yu Tsai
2018-11-28 10:19 ` Maxime Ripard
2018-11-28 10:19 ` Maxime Ripard
2018-11-28 10:19 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 03/15] dt-bindings: rtc: sun6i-rtc: Deprecate external clock output for A31 Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:20 ` Maxime Ripard
2018-11-28 10:20 ` Maxime Ripard
2018-11-28 10:20 ` Maxime Ripard
2018-11-28 11:15 ` Chen-Yu Tsai
2018-11-28 11:15 ` Chen-Yu Tsai
2018-11-28 11:15 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai [this message]
2018-11-28 9:30 ` [PATCH 04/15] dt-bindings: rtc: sun6i-rtc: Export internal RC oscillator Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:32 ` Maxime Ripard
2018-11-28 10:32 ` Maxime Ripard
2018-11-28 11:18 ` Chen-Yu Tsai
2018-11-28 11:18 ` Chen-Yu Tsai
2018-11-28 11:18 ` Chen-Yu Tsai
2018-12-03 9:06 ` Maxime Ripard
2018-12-03 9:06 ` Maxime Ripard
2018-12-03 9:06 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 05/15] rtc: sun6i: Add default clock name for LOSC Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:21 ` Maxime Ripard
2018-11-28 10:21 ` Maxime Ripard
2018-11-28 10:21 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 06/15] rtc: sun6i: Add support for different variants Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:22 ` Maxime Ripard
2018-11-28 10:22 ` Maxime Ripard
2018-11-28 10:22 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 07/15] rtc: sun6i: Add support for all known pre-H6 variants Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:24 ` Maxime Ripard
2018-11-28 10:24 ` Maxime Ripard
2018-11-28 10:24 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 07/15] rtc: sun6i: Add support for all known variants Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:44 ` [linux-sunxi] " Chen-Yu Tsai
2018-11-28 9:44 ` Chen-Yu Tsai
2018-11-28 9:44 ` Chen-Yu Tsai
2018-11-28 9:30 ` [PATCH 08/15] rtc: sun6i: Expose internal oscillator through device tree Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:33 ` Maxime Ripard
2018-11-28 10:33 ` Maxime Ripard
2018-11-28 10:33 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 09/15] clk: sunxi-ng: r40: Force LOSC parent to RTC LOSC output Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:25 ` Maxime Ripard
2018-11-28 10:25 ` Maxime Ripard
2018-11-28 10:25 ` Maxime Ripard
2018-11-28 21:29 ` Stephen Boyd
2018-11-28 21:29 ` Stephen Boyd
2018-11-28 21:29 ` Stephen Boyd
2018-11-30 3:55 ` Chen-Yu Tsai
2018-11-30 3:55 ` Chen-Yu Tsai
2018-11-30 3:55 ` Chen-Yu Tsai
2018-11-28 9:30 ` [PATCH 10/15] ARM: dts: sun8i: a23/a33: Fix up RTC device node Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 11/15] ARM: dts: sunxi: h3/h5: Add clock accuracy for external oscillators Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 10:26 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 12/15] ARM: dts: sunxi: h3/h5: Fix up RTC device node and clock references Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:27 ` Maxime Ripard
2018-11-28 10:27 ` Maxime Ripard
2018-11-28 10:27 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 13/15] ARM: dts: sun8i: r40: Add clock accuracy for external oscillators Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 14/15] ARM: dts: sun8i: r40: Add RTC device node Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 9:30 ` [PATCH 15/15] arm64: dts: allwinner: a64: Fix up RTC device node and clock references Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 9:30 ` Chen-Yu Tsai
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 10:28 ` Maxime Ripard
2018-11-28 18:45 ` [linux-sunxi] [PATCH 00/15] rtc: sun6i: clock rework and pre-H6 SoC support Corentin Labbe
2018-11-28 18:45 ` Corentin Labbe
2018-11-28 18:45 ` Corentin Labbe
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