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From 95136c932ac4433a6a50d394817812f8eb2cc914 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Tue, 15 Dec 2015 15:35:57 -0800
Subject: [PATCH 161/170] clk: bcm2835: Add bindings for the auxiliary
peripheral clock gates.
These will be used for enabling UART1, SPI1, and SPI2.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
---
.../bindings/clock/brcm,bcm2835-aux-clock.txt | 31 ++++++++++++++++++++++
include/dt-bindings/clock/bcm2835-aux.h | 17 ++++++++++++
2 files changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
create mode 100644 include/dt-bindings/clock/bcm2835-aux.h
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
@@ -0,0 +1,31 @@
+Broadcom BCM2835 auxiliary peripheral support
+
+This binding uses the common clock binding:
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
+area controlling clock gating to the peripherals, and providing an IRQ
+status register.
+
+Required properties:
+- compatible: Should be "brcm,bcm2835-aux"
+- #clock-cells: Should be <1>. The permitted clock-specifier values can be
+ found in include/dt-bindings/clock/bcm2835-aux.h
+- reg: Specifies base physical address and size of the registers
+- clocks: The parent clock phandle
+
+Example:
+
+ clocks: cprman@7e101000 {
+ compatible = "brcm,bcm2835-cprman";
+ #clock-cells = <1>;
+ reg = <0x7e101000 0x2000>;
+ clocks = <&clk_osc>;
+ };
+
+ aux: aux@0x7e215004 {
+ compatible = "brcm,bcm2835-aux";
+ #clock-cells = <1>;
+ reg = <0x7e215000 0x8>;
+ clocks = <&clocks BCM2835_CLOCK_VPU>;
+ };
--- /dev/null
+++ b/include/dt-bindings/clock/bcm2835-aux.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define BCM2835_AUX_CLOCK_UART 0
+#define BCM2835_AUX_CLOCK_SPI1 1
+#define BCM2835_AUX_CLOCK_SPI2 2
+#define BCM2835_AUX_CLOCK_COUNT 3
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