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Subject[PATCH] dt-bindings: timer: gpt: update binding doc
Date
The i.MX GPT timer driver binding doc is out of date,
the "interrupts", "clocks" and "clock-names" do NOT match
current GPT driver implementation, update it and use i.MX6SX
as example.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
.../devicetree/bindings/timer/fsl,imxgpt.txt | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
index 9809b11..4e9fa16 100644
--- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
+++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
@@ -2,17 +2,21 @@ Freescale i.MX General Purpose Timer (GPT)

Required properties:

-- compatible : should be "fsl,<soc>-gpt"
-- reg : Specifies base physical address and size of the registers.
-- interrupts : A list of 4 interrupts; one per timer channel.
-- clocks : The clocks provided by the SoC to drive the timer.
+- compatible : should be "fsl,<soc>-gpt".
+- reg : specifies base physical address and size of the registers.
+- interrupts : should be the clock event device interrupt.
+- clocks : the clocks provided by the SoC to drive the timer, must contain
+ an entry for each entry in clock-names.
+- clock-names : must include an "per" or "osc_per" entry, and "ipg" entry
+ is optional according to SoC design.

Example:

-gpt1: timer@10003000 {
- compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
- reg = <0x10003000 0x1000>;
- interrupts = <26>;
- clocks = <&clks 46>, <&clks 61>;
+gpt: gpt@2098000 {
+ compatible = "fsl,imx6sx-gpt", "fsl,imx31-gpt";
+ reg = <0x02098000 0x4000>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX6SX_CLK_GPT_BUS>,
+ <&clks IMX6SX_CLK_GPT_3M>;
clock-names = "ipg", "per";
};
--
2.7.4
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