linux-kernel - [PATCH v7 7/9] dt-bindings: i2c: rk3x: add support for rk3399

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Message-Id: <1462372523-6444-1-git-send-email-david.wu@rock-chips.com>
Date:	Wed,  4 May 2016 22:35:23 +0800
From:	David Wu <david.wu@...k-chips.com>
To:	heiko@...ech.de, wsa@...-dreams.de
Cc:	robh+dt@...nel.org, dianders@...omium.org,
	andy.shevchenko@...il.com, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, briannorris@...gle.com,
	davidriley@...gle.com, huangtao@...k-chips.com, hl@...k-chips.com,
	xjq@...k-chips.com, zyw@...k-chips.com, cf@...k-chips.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	David Wu <david.wu@...k-chips.com>
Subject: [PATCH v7 7/9] dt-bindings: i2c: rk3x: add support for rk3399

The bus clock and function clock are separated at rk3399,
and others use one clock as the bus clock and function clock.

Signed-off-by: David Wu <david.wu@...k-chips.com>
---
 Documentation/devicetree/bindings/i2c/i2c-rk3x.txt | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
index 0b4a85f..82b6f6b 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
@@ -6,10 +6,20 @@ RK3xxx SoCs.
 Required properties :
 
  - reg : Offset and length of the register set for the device
- - compatible : should be "rockchip,rk3066-i2c", "rockchip,rk3188-i2c",
-		"rockchip,rk3228-i2c" or "rockchip,rk3288-i2c".
+ - compatible: should be one of the followings
+   - "rockchip,rk3066-i2c": for rk3066
+   - "rockchip,rk3188-i2c": for rk3188
+   - "rockchip,rk3228-i2c": for rk3228
+   - "rockchip,rk3288-i2c": for rk3288
+   - "rockchip,rk3399-i2c": for rk3399
  - interrupts : interrupt number
- - clocks : parent clock
+ - clocks: See ../clock/clock-bindings.txt
+   - For older hardware (rk3066, rk3188, rk3228, rk3288):
+     - There is one clock that's used both to derive the functional clock
+       for the device and as the bus clock.  REQUIRED.
+   - For newer hardware (rk3399): specify by name
+     - "i2c": REQUIRED. This is used to derive the functional clock.
+     - "pclk": REQUIRED. This is the bus clock.equired on RK3066, RK3188 :
 
 Required on RK3066, RK3188 :
 
-- 
1.9.1