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dt-bindings: watchdog: Add Spreadtrum watchdog documentation 

This patch adds the documentation for Spreadtrum watchdog driver.

Signed-off-by: Eric Long <eric.long@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Eric Long 2017-11-06 10:46:27 +08:00 committed by Wim Van Sebroeck
parent 19ce9490aa
commit c5d8d40b28
1 changed files with 19 additions and 0 deletions
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19
Documentation/devicetree/bindings/watchdog/sprd-wdt.txt Normal file
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Spreadtrum SoCs Watchdog timer
Required properties:
- compatible : Should be "sprd,sp9860-wdt".
- reg : Specifies base physical address and size of the registers.
- interrupts : Exactly one interrupt specifier.
- timeout-sec : Contain the default watchdog timeout in seconds.
- clock-names : Contain the input clock names.
- clocks : Phandles to input clocks.
Example:
watchdog: watchdog@40310000 {
compatible = "sprd,sp9860-wdt";
reg = <0 0x40310000 0 0x1000>;
interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
timeout-sec = <12>;
clock-names = "enable", "rtc_enable";
clocks = <&clk_aon_apb_gates1 8>, <&clk_aon_apb_rtc_gates 9>;
};