From: Michal Simek <monstr@monstr.eu>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Michal Simek <michal.simek@xilinx.com>,
linux-kernel@vger.kernel.org, Wim Van Sebroeck <wim@iguana.be>,
linux-watchdog@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [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>
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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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next prev parent reply other threads:[~2014-02-10 7:03 UTC|newest]
Thread overview: 28+ 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 10/10] watchdog: xilinx: Enable this driver for Zynq Michal Simek
2014-01-31 14:52 ` Guenter Roeck
2014-02-03 7:01 ` Michal Simek
2014-02-03 8:26 ` Guenter Roeck
2014-02-03 8:45 ` Michal Simek
2014-02-10 0:51 ` Guenter Roeck
2014-02-10 7:06 ` Michal Simek
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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