dt-bindings: Document img,boston-clock binding

Add device tree binding documentation for the clocks provided by the
MIPS Boston development board from Imagination Technologies, and a
header file describing the available clocks for use by device trees &
driver.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16482/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2017-06-17 13:52:46 -07:00 committed by Ralf Baechle
parent 828db212bf
commit 7461279bba
3 changed files with 52 additions and 0 deletions

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Binding for Imagination Technologies MIPS Boston clock sources.
This binding uses the common clock binding[1].
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
The device node must be a child node of the syscon node corresponding to the
Boston system's platform registers.
Required properties:
- compatible : Should be "img,boston-clock".
- #clock-cells : Should be set to 1.
Values available for clock consumers can be found in the header file:
<dt-bindings/clock/boston-clock.h>
Example:
system-controller@17ffd000 {
compatible = "img,boston-platform-regs", "syscon";
reg = <0x17ffd000 0x1000>;
clk_boston: clock {
compatible = "img,boston-clock";
#clock-cells = <1>;
};
};
uart0: uart@17ffe000 {
/* ... */
clocks = <&clk_boston BOSTON_CLK_SYS>;
};

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@ -8504,6 +8504,13 @@ F: arch/mips/include/asm/mach-loongson32/
F: drivers/*/*loongson1*
F: drivers/*/*/*loongson1*
MIPS BOSTON DEVELOPMENT BOARD
M: Paul Burton <paul.burton@imgtec.com>
L: linux-mips@linux-mips.org
S: Maintained
F: Documentation/devicetree/bindings/clock/img,boston-clock.txt
F: include/dt-bindings/clock/boston-clock.h
MIROSOUND PCM20 FM RADIO RECEIVER DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org

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/*
* Copyright (C) 2016 Imagination Technologies
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__
#define __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__
#define BOSTON_CLK_INPUT 0
#define BOSTON_CLK_SYS 1
#define BOSTON_CLK_CPU 2
#endif /* __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__ */