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From: Icenowy Zheng <icenowy-h8G6r0blFSE@public.gmane.org>
To: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Maxime Ripard
	<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
	Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
	Jernej Skrabec <jernej.skrabec-gGgVlfcn5nU@public.gmane.org>
Cc: linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
	Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>
Subject: [PATCH v3 01/11] dt-bindings: add binding for the Allwinner DE2 CCU
Date: Thu, 30 Mar 2017 03:46:03 +0800	[thread overview]
Message-ID: <20170329194613.55548-2-icenowy@aosc.io> (raw)
In-Reply-To: <20170329194613.55548-1-icenowy-h8G6r0blFSE@public.gmane.org>

From: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>

Allwinner "Display Engine 2.0" contains some clock controls in it.

In order to add them as clock drivers, we need a device tree binding.
Add the binding here.

Signed-off-by: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>
---
Changes in v3:
- Fill the address space length of DE2 CCU to 0x100000, just reach the start of mixer0.

 .../devicetree/bindings/clock/sun8i-de2.txt        | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/sun8i-de2.txt

diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt
new file mode 100644
index 000000000000..34cf79c05f13
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt
@@ -0,0 +1,31 @@
+Allwinner Display Engine 2.0 Clock Control Binding
+--------------------------------------------------
+
+Required properties :
+- compatible: must contain one of the following compatibles:
+		- "allwinner,sun8i-a83t-de2-clk"
+		- "allwinner,sun50i-a64-de2-clk"
+		- "allwinner,sun50i-h5-de2-clk"
+
+- reg: Must contain the registers base address and length
+- clocks: phandle to the clocks feeding the display engine subsystem.
+	  Three are needed:
+  - "mod": the display engine module clock
+  - "bus": the bus clock for the whole display engine subsystem
+- clock-names: Must contain the clock names described just above
+- resets: phandle to the reset control for the display engine subsystem.
+- #clock-cells : must contain 1
+- #reset-cells : must contain 1
+
+Example:
+de2_clocks: clock@01000000 {
+	compatible = "allwinner,sun50i-a64-de2-clk";
+	reg = <0x01000000 0x100000>;
+	clocks = <&ccu CLK_DE>,
+		 <&ccu CLK_BUS_DE>;
+	clock-names = "mod",
+		      "bus";
+	resets = <&ccu RST_BUS_DE>;
+	#clock-cells = <1>;
+	#reset-cells = <1>;
+};
-- 
2.12.0

  parent reply	other threads:[~2017-03-29 19:46 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-29 19:46 [PATCH v3 00/11] Initial Allwinner Display Engine 2.0 Support Icenowy Zheng
     [not found] ` <20170329194613.55548-1-icenowy-h8G6r0blFSE@public.gmane.org>
2017-03-29 19:46   ` Icenowy Zheng [this message]
     [not found]     ` <20170329194613.55548-2-icenowy-h8G6r0blFSE@public.gmane.org>
2017-04-03 15:33       ` [PATCH v3 01/11] dt-bindings: add binding for the Allwinner DE2 CCU Rob Herring
2017-04-03 16:18         ` Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 02/11] clk: sunxi-ng: add support for " Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 03/11] dt-bindings: add bindings for DE2 on V3s SoC Icenowy Zheng
     [not found]     ` <20170329194613.55548-4-icenowy-h8G6r0blFSE@public.gmane.org>
2017-04-03  8:00       ` Maxime Ripard
2017-03-29 19:46   ` [PATCH v3 04/11] drm/sun4i: abstract the layer type Icenowy Zheng
     [not found]     ` <20170329194613.55548-5-icenowy-h8G6r0blFSE@public.gmane.org>
2017-04-03  8:14       ` Maxime Ripard
2017-04-03 10:51         ` Chen-Yu Tsai
2017-04-04 19:28     ` Sean Paul
2017-04-04 19:53       ` Icenowy Zheng
     [not found]         ` <dbf0f478-ff53-0ced-24a3-e9de7077efd9-h8G6r0blFSE@public.gmane.org>
2017-04-05  2:27           ` Chen-Yu Tsai
     [not found]             ` <CAGb2v66vxP0c3qMTAUCseTCbpJ6gxnKfNGNcC41jPHA_Ye4ggw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-05 17:14               ` icenowy-h8G6r0blFSE
2017-03-29 19:46   ` [PATCH v3 05/11] drm/sun4i: abstract a mixer type Icenowy Zheng
     [not found]     ` <20170329194613.55548-6-icenowy-h8G6r0blFSE@public.gmane.org>
2017-04-03  8:24       ` Maxime Ripard
2017-03-29 19:46   ` [PATCH v3 06/11] drm/sun4i: add support for Allwinner DE2 mixers Icenowy Zheng
     [not found]     ` <20170329194613.55548-7-icenowy-h8G6r0blFSE@public.gmane.org>
2017-03-29 22:33       ` [linux-sunxi] " Jernej Škrabec
2017-03-29 19:46   ` [PATCH v3 07/11] drm/sun4i: Add compatible string for V3s display engine Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 08/11] drm/sun4i: tcon: add support for V3s TCON Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 09/11] ARM: dts: sun8i: add DE2 nodes for V3s SoC Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 10/11] ARM: dts: sun8i: add pinmux for LCD pins of " Icenowy Zheng
2017-03-29 19:46   ` [PATCH v3 11/11] [DO NOT MERGE] ARM: dts: sun8i: enable LCD panel of Lichee Pi Zero Icenowy Zheng

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