The i.MX GPT timer driver binding doc is out of date,
update it according to current GPT timer driver.
Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
---
ChangeLog since V3:
be more specific about the backwards compatible of each SoC;
---
.../devicetree/bindings/timer/fsl,imxgpt.txt | 39 ++++++++++++++++++----
1 file changed, 33 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
index 9809b11..5d8fd5b 100644
--- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
+++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
@@ -2,17 +2,44 @@ 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 one of following:
+ for i.MX1:
+ - "fsl,imx1-gpt";
+ for i.MX21:
+ - "fsl,imx21-gpt";
+ for i.MX27:
+ - "fsl,imx27-gpt", "fsl,imx21-gpt";
+ for i.MX31:
+ - "fsl,imx31-gpt";
+ for i.MX25:
+ - "fsl,imx25-gpt", "fsl,imx31-gpt";
+ for i.MX50:
+ - "fsl,imx50-gpt", "fsl,imx31-gpt";
+ for i.MX51:
+ - "fsl,imx51-gpt", "fsl,imx31-gpt";
+ for i.MX53:
+ - "fsl,imx53-gpt", "fsl,imx31-gpt";
+ for i.MX6Q:
+ - "fsl,imx6q-gpt", "fsl,imx31-gpt";
+ for i.MX6DL:
+ - "fsl,imx6dl-gpt";
+ for i.MX6SL:
+ - "fsl,imx6sl-gpt", "fsl,imx6dl-gpt";
+ for i.MX6SX:
+ - "fsl,imx6sx-gpt", "fsl,imx6dl-gpt";
+- reg : specifies base physical address and size of the registers.
+- interrupts : should be the gpt 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 "ipg" entry first, then "per" entry.
Example:
gpt1: timer@10003000 {
- compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
+ compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
reg = <0x10003000 0x1000>;
interrupts = <26>;
- clocks = <&clks 46>, <&clks 61>;
+ clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
+ <&clks IMX27_CLK_PER1_GATE>;
clock-names = "ipg", "per";
};
--
2.7.4
