From: Icenowy Zheng <icenowy@aosc.io>
To: Maxime Ripard <maxime.ripard@free-electrons.com>,
Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-sunxi@googlegroups.com, Icenowy Zheng <icenowy@aosc.xyz>,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/5] dt-bindings: update device tree binding for Allwinner PRCM CCUs
Date: Tue, 4 Apr 2017 17:50:56 +0800 [thread overview]
Message-ID: <20170404095100.18649-2-icenowy@aosc.io> (raw)
In-Reply-To: <20170404095100.18649-1-icenowy@aosc.io>
From: Icenowy Zheng <icenowy@aosc.xyz>
Many Allwinner SoCs after A31 have a CCU in PRCM block.
Give the ones on H3 and A64 compatible strings.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v4:
- Add Rob's ACK.
Changes in v3:
- Removed frequency info of iosc in this device tree binding document.
Changes in v2:
- Add iosc for R_CCU's on H3/A64.
Documentation/devicetree/bindings/clock/sunxi-ccu.txt | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index 68512aa398a9..e9c5a1d9834a 100644
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -7,9 +7,11 @@ Required properties :
- "allwinner,sun8i-a23-ccu"
- "allwinner,sun8i-a33-ccu"
- "allwinner,sun8i-h3-ccu"
+ - "allwinner,sun8i-h3-r-ccu"
- "allwinner,sun8i-v3s-ccu"
- "allwinner,sun9i-a80-ccu"
- "allwinner,sun50i-a64-ccu"
+ - "allwinner,sun50i-a64-r-ccu"
- "allwinner,sun50i-h5-ccu"
- reg: Must contain the registers base address and length
@@ -20,7 +22,10 @@ Required properties :
- #clock-cells : must contain 1
- #reset-cells : must contain 1
-Example:
+For the PRCM CCUs on H3/A64, one more clock is needed:
+- "iosc": the SoC's internal frequency oscillator
+
+Example for generic CCU:
ccu: clock@01c20000 {
compatible = "allwinner,sun8i-h3-ccu";
reg = <0x01c20000 0x400>;
@@ -29,3 +34,13 @@ ccu: clock@01c20000 {
#clock-cells = <1>;
#reset-cells = <1>;
};
+
+Example for PRCM CCU:
+r_ccu: clock@01f01400 {
+ compatible = "allwinner,sun50i-a64-r-ccu";
+ reg = <0x01f01400 0x100>;
+ clocks = <&osc24M>, <&osc32k>, <&iosc>;
+ clock-names = "hosc", "losc", "iosc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+};
--
2.12.2
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next prev parent reply other threads:[~2017-04-04 9:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-04 9:50 [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng
2017-04-04 9:50 ` Icenowy Zheng [this message]
2017-04-04 9:50 ` [PATCH v4 2/5] clk: sunxi-ng: add support for PRCM CCUs Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 3/5] arm64: allwinner: a64: add r_ccu node Icenowy Zheng
2017-04-04 9:50 ` [PATCH v4 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu Icenowy Zheng
[not found] ` <1500505173.23770.1.camel@xff.cz>
2017-07-20 2:03 ` [linux-sunxi] " icenowy
2017-07-20 2:19 ` icenowy
2017-07-20 5:15 ` icenowy
2017-07-20 8:21 ` icenowy
2017-04-04 9:51 ` [PATCH v4 5/5] arm64: allwinner: a64: add R_PIO pinctrl node Icenowy Zheng
2017-04-04 15:45 ` [PATCH v4 0/5] Add support for the R_CCU on Allwinner H3/A64 SoCs Maxime Ripard
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