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authorPaul Burton <paul.burton@imgtec.com>2017-06-17 23:52:46 +0300
committerRalf Baechle <ralf@linux-mips.org>2017-07-11 15:13:06 +0300
commit7461279bba4a62d192eda6dd10de68ac0543bfcd (patch)
treefd59d148efd865f446f92a887ac692ebadc2b520
parent828db212bf4b63c68c51f6519435c48e8d79bd00 (diff)
downloadlinux-7461279bba4a62d192eda6dd10de68ac0543bfcd.tar.xz
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>
-rw-r--r--Documentation/devicetree/bindings/clock/img,boston-clock.txt31
-rw-r--r--MAINTAINERS7
-rw-r--r--include/dt-bindings/clock/boston-clock.h14
3 files changed, 52 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/img,boston-clock.txt b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
new file mode 100644
index 000000000000..7bc5e9ffb624
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
@@ -0,0 +1,31 @@
+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>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index bcf2d258c0dd..0b977a6bf849 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -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
diff --git a/include/dt-bindings/clock/boston-clock.h b/include/dt-bindings/clock/boston-clock.h
new file mode 100644
index 000000000000..a6f009821137
--- /dev/null
+++ b/include/dt-bindings/clock/boston-clock.h
@@ -0,0 +1,14 @@
+/*
+ * 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__ */