path: root/Documentation
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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-18 08:42:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-18 08:42:47 -0800
commit928fce2f6d8152d897790c1a5bbeef5642f69e0e (patch)
treebb8b583bae3b76c94c274bbea47d07c00847f465 /Documentation
parenta5ac1fb13c1265f942ea1d24c43b42d76c1660c2 (diff)
parent94613431619b555ac1299634efabde2ffd0eb2b4 (diff)
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck: "This adds the following new drivers: - ImgTec PDC Watchdog Timer Driver, - Mediatek SoC integrated watchdog Add support for BCM5301X, IT8783, NCT6791 and NCT6792 WDT's Add bcm47xx_wdt and da9063 restart handlers and contains overall improvements and fixes" * git://www.linux-watchdog.org/linux-watchdog: watchdog: bcm47xx_wdt.c: allow enabling on BCM5301X arch watchdog: jz4740: Add DT support dt: watchdog: Add DT binding documentation for jz4740 watchdog timer watchdog: dw_wdt: Try to get a 30 second watchdog by default watchdog: dw_wdt: pat the watchdog before enabling it watchdog: w83627hf_wdt: Add support for NCT6791 and NCT6792 watchdog: bcm47xx_wdt.c: add restart handler support watchdog: gpio_wdt: Add "always_running" feature to GPIO watchdog watchdog: da9063: Add restart handler support ARM: mediatek: dts: Add bindings for watchdog watchdog: Add driver for Mediatek watchdog watchdog: Fix omap watchdogs to enable the magic close bit watchdog: rt2880_wdt: minor clean up watchdog: hpwdt: Fix initialization message in hpwdt.c watchdog: it87_wdt: add IT8783 ID watchdog: imx2: Constify struct regmap_config and watchdog_ops DT: watchdog: Add ImgTec PDC Watchdog Timer binding documentation watchdog: ImgTec PDC Watchdog Timer Driver
Diffstat (limited to 'Documentation')
4 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
index 37afec194949..198794963786 100644
--- a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
@@ -13,6 +13,11 @@ Required Properties:
by the GPIO flags.
- hw_margin_ms: Maximum time to reset watchdog circuit (milliseconds).
+Optional Properties:
+- always-running: If the watchdog timer cannot be disabled, add this flag to
+ have the driver keep toggling the signal without a client. It will only cease
+ to toggle the signal when the device is open and the timeout elapsed.
watchdog: watchdog {
/* ADM706 */
diff --git a/Documentation/devicetree/bindings/watchdog/imgpdc-wdt.txt b/Documentation/devicetree/bindings/watchdog/imgpdc-wdt.txt
new file mode 100644
index 000000000000..b2fa11fd43de
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/imgpdc-wdt.txt
@@ -0,0 +1,19 @@
+*ImgTec PowerDown Controller (PDC) Watchdog Timer (WDT)
+Required properties:
+- compatible : Should be "img,pdc-wdt"
+- reg : Should contain WDT registers location and length
+- clocks: Must contain an entry for each entry in clock-names.
+- clock-names: Should contain "wdt" and "sys"; the watchdog counter
+ clock and register interface clock respectively.
+- interrupts : Should contain WDT interrupt
+watchdog@18102100 {
+ compatible = "img,pdc-wdt";
+ reg = <0x18102100 0x100>;
+ clocks = <&pdc_wdt_clk>, <&sys_clk>;
+ clock-names = "wdt", "sys";
+ interrupts = <0 52 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt b/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt
new file mode 100644
index 000000000000..e27763ef0049
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt
@@ -0,0 +1,12 @@
+Ingenic Watchdog Timer (WDT) Controller for JZ4740
+Required properties:
+compatible: "ingenic,jz4740-watchdog"
+reg: Register address and length for watchdog registers
+watchdog: jz4740-watchdog@0x10002000 {
+ compatible = "ingenic,jz4740-watchdog";
+ reg = <0x10002000 0x100>;
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
new file mode 100644
index 000000000000..af9eb5b8a253
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -0,0 +1,13 @@
+Mediatek SoCs Watchdog timer
+Required properties:
+- compatible : should be "mediatek,mt6589-wdt"
+- reg : Specifies base physical address and size of the registers.
+wdt: watchdog@010000000 {
+ compatible = "mediatek,mt6589-wdt";
+ reg = <0x10000000 0x18>;

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