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From: monstr@monstr.eu (Michal Simek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/10] watchdog: xilinx: Convert driver to the watchdog framework
Date: Mon, 10 Feb 2014 08:03:43 +0100	[thread overview]
Message-ID: <52F879CF.8080906@monstr.eu> (raw)
In-Reply-To: <52F7DF2F.5060001@roeck-us.net>

On 02/09/2014 09:03 PM, Guenter Roeck wrote:
> On 01/31/2014 06:18 AM, Michal Simek wrote:
>> - Remove uneeded headers, fops functions
>> - Use xilinx_wdt prefix in start/stop/keepalive functions
>>    and in new structures
>>
>> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> 
> Hi Michal,
> 
>>   static int xwdt_probe(struct platform_device *pdev)
>>   {
>>       int rc;
>> @@ -314,7 +184,7 @@ static int xwdt_probe(struct platform_device *pdev)
>>                       "xlnx,wdt-enable-once", NULL);
>>       if (tmptr == NULL) {
>>           pr_warn("Parameter \"xlnx,wdt-enable-once\" not found in device tree!\n");
>> -        xdev.nowayout = WATCHDOG_NOWAYOUT;
>> +        watchdog_set_nowayout(&xilinx_wdt_wdd, true);
> 
> Sure you want to set this to always true instead of using WATCHDOG_NOWAYOUT ?

I have checked it and
option CONFIG_WATCHDOG_NOWAYOUT - Disable watchdog shutdown on close

with this part in the header

100 #ifdef CONFIG_WATCHDOG_NOWAYOUT
101 #define WATCHDOG_NOWAYOUT               1
102 #define WATCHDOG_NOWAYOUT_INIT_STATUS   (1 << WDOG_NO_WAY_OUT)
103 #else
104 #define WATCHDOG_NOWAYOUT               0
105 #define WATCHDOG_NOWAYOUT_INIT_STATUS   0
106 #endif

enable once is hardware option and it means when this option is setup in
hw you can't stop watchdog. That's why I think that setting up true
instead of WATCHDOG_NOWAYOUT is correct.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform


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  reply	other threads:[~2014-02-10  7:03 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-31 14:18 [PATCH 01/10] watchdog: xilinx: Convert driver to the watchdog framework Michal Simek
2014-01-31 14:18 ` [PATCH 02/10] watchdog: xilinx: Move control_status_reg to functions Michal Simek
2014-02-09 20:05   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 03/10] watchdog: xilinx: Simplify probe and remove functions Michal Simek
2014-02-09 20:08   ` [03/10] " Guenter Roeck
2014-01-31 14:18 ` [PATCH 04/10] watchdog: xilinx: Move no_timeout to probe function Michal Simek
2014-02-09 20:09   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 05/10] watchdog: xilinx: Allocate private structure per device Michal Simek
2014-02-09 20:13   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 06/10] watchdog: xilinx: Fix all printk messages Michal Simek
2014-02-09 20:14   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 07/10] watchdog: xilinx: Fix OF binding Michal Simek
2014-01-31 17:33   ` Rob Herring
2014-02-03  7:59     ` Michal Simek
2014-02-03  8:01       ` Michal Simek
2014-02-09 20:18   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 08/10] watchdog: xilinx: Use correct comment indentation Michal Simek
2014-02-09 20:19   ` Guenter Roeck
2014-01-31 14:18 ` [PATCH 09/10] watchdog: xilinx: Add missing binding Michal Simek
2014-02-03 15:06   ` Arnd Bergmann
2014-02-03 15:13     ` Michal Simek
2014-02-03 15:32       ` Arnd Bergmann
2014-02-03 15:47         ` Michal Simek
2014-02-04 19:27           ` Arnd Bergmann
2014-02-05  9:25             ` Michal Simek
2014-02-05  9:36               ` Arnd Bergmann
2014-02-05  9:41                 ` Michal Simek
2014-02-05 14:00                   ` Arnd Bergmann
2014-02-09 20:03 ` [PATCH 01/10] watchdog: xilinx: Convert driver to the watchdog framework Guenter Roeck
2014-02-10  7:03   ` Michal Simek [this message]
2014-02-10 17:18     ` Guenter Roeck

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