Re: [PATCH v3 3/7] watchdog: sirfsoc: allow setting timeout in devicetree
From: Rob Herring <robh@kernel.org>
Date: 2018-02-19 00:07:39
Also in:
linux-amlogic, linux-arm-kernel, linux-mediatek, linux-watchdog, lkml
On Sun, Feb 11, 2018 at 09:08:43PM +0100, Marcus Folkesson wrote:
watchdog_init_timeout() will allways pick timeout_param since it defaults to a valid timeout. By following best practice described in Documentation/watchdog/watchdog-kernel-api.txt, it also let us to set timout-sec property in devicetree.
typo
quoted hunk ↗ jump to hunk
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> --- Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt | 4 ++++ drivers/watchdog/sirfsoc_wdt.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)diff --git a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt index 9cbc76c89b2b..0dce5e3100b4 100644 --- a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt@@ -5,10 +5,14 @@ Required properties: - reg: Address range of tick timer/WDT register set - interrupts: interrupt number to the cpu +Optional properties: +- timeout-sec : Contains the watchdog timeout in seconds + Example: timer@b0020000 { compatible = "sirf,prima2-tick"; reg = <0xb0020000 0x1000>; interrupts = <0>; + timeout-sec = <30>; };diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c index 4eea351e09b0..ac0c9d2c4aee 100644 --- a/drivers/watchdog/sirfsoc_wdt.c +++ b/drivers/watchdog/sirfsoc_wdt.c@@ -29,7 +29,7 @@ #define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */ #define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */ -static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT; +static unsigned int timeout;
If you have an old dtb, then you still need the default.
static bool nowayout = WATCHDOG_NOWAYOUT; module_param(timeout, uint, 0); -- 2.15.1