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Subject[PATCH v3 1/3] dt-bindings: clk: Hi3660: Document stub clock
Date
From: Leo Yan <leo.yan@linaro.org>

Document the DT binding for stub clock which is used for CPU,
GPU and DDR frequency scaling.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
Documentation/devicetree/bindings/clock/hi3660-clock.txt | 6 ++++++
include/dt-bindings/clock/hi3660-clock.h | 7 +++++++
2 files changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/hi3660-clock.txt b/Documentation/devicetree/bindings/clock/hi3660-clock.txt
index 0035a7e..946da7c 100644
--- a/Documentation/devicetree/bindings/clock/hi3660-clock.txt
+++ b/Documentation/devicetree/bindings/clock/hi3660-clock.txt
@@ -13,12 +13,18 @@ Required Properties:
- "hisilicon,hi3660-pmuctrl"
- "hisilicon,hi3660-sctrl"
- "hisilicon,hi3660-iomcu"
+ - "hisilicon,hi3660-stub-clk"

- reg: physical base address of the controller and length of memory mapped
region.

- #clock-cells: should be 1.

+Optional Properties:
+
+- mboxes: Phandle to the mailbox for sending message to MCU.
+ (See: ../mailbox/hisilicon,hi3660-mailbox.txt for more info)
+
Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume.

diff --git a/include/dt-bindings/clock/hi3660-clock.h b/include/dt-bindings/clock/hi3660-clock.h
index adb768d..75d583e 100644
--- a/include/dt-bindings/clock/hi3660-clock.h
+++ b/include/dt-bindings/clock/hi3660-clock.h
@@ -208,4 +208,11 @@
#define HI3660_CLK_I2C6_IOMCU 3
#define HI3660_CLK_IOMCU_PERI0 4

+/* clk in stub clock */
+#define HI3660_CLK_STUB_CLUSTER0 0
+#define HI3660_CLK_STUB_CLUSTER1 1
+#define HI3660_CLK_STUB_GPU 2
+#define HI3660_CLK_STUB_DDR 3
+#define HI3660_CLK_STUB_NUM 4
+
#endif /* __DTS_HI3660_CLOCK_H */
--
1.9.1
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