From: Srinivas Neeli <srinivas.neeli@xilinx.com>
To: linux@roeck-us.net, michal.simek@xilinx.com,
shubhrajyoti.datta@xilinx.com, sgoud@xilinx.com
Cc: wim@linux-watchdog.org, linux-watchdog@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, git@xilinx.com
Subject: [PATCH 8/9] watchdog: of_xilinx_wdt: Wire setting up timeout via module parameter/DT
Date: Thu, 16 Jan 2020 18:56:56 +0530
Message-ID: <1579181217-31127-9-git-send-email-srinivas.neeli@xilinx.com> (raw)
In-Reply-To: <1579181217-31127-1-git-send-email-srinivas.neeli@xilinx.com>
From: Srinivas Goud <srinivas.goud@xilinx.com>
Add support for setting up timeout via kernel module parameter or read
timeout-sec via device tree.
Signed-off-by: Srinivas Goud <srinivas.goud@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
drivers/watchdog/of_xilinx_wdt.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index d2c389d9eaa7..375289e3bed2 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -18,6 +18,7 @@
#include <linux/of_device.h>
#include <linux/of_address.h>
+#define XWT_WWDT_DEFAULT_TIMEOUT 10
#define XWT_WWDT_MIN_TIMEOUT 1
#define XWT_WWDT_MAX_TIMEOUT 80
@@ -55,6 +56,13 @@
#define WATCHDOG_NAME "Xilinx Watchdog"
+static int wdt_timeout;
+
+module_param(wdt_timeout, int, 0644);
+MODULE_PARM_DESC(wdt_timeout,
+ "Watchdog time in seconds. (default="
+ __MODULE_STRING(XWT_WWDT_DEFAULT_TIMEOUT) ")");
+
/**
* enum xwdt_ip_type - WDT IP type.
*
@@ -416,6 +424,15 @@ static int xwdt_probe(struct platform_device *pdev)
xilinx_wdt_wdd->timeout =
2 * ((1 << xdev->wdt_interval) /
pfreq);
+ } else {
+ xilinx_wdt_wdd->timeout = XWT_WWDT_DEFAULT_TIMEOUT;
+ xilinx_wdt_wdd->min_timeout = XWT_WWDT_MIN_TIMEOUT;
+ xilinx_wdt_wdd->max_timeout = XWT_WWDT_MAX_TIMEOUT;
+
+ rc = watchdog_init_timeout(xilinx_wdt_wdd,
+ wdt_timeout, &pdev->dev);
+ if (rc)
+ dev_warn(&pdev->dev, "unable to set timeout value\n");
}
spin_lock_init(&xdev->spinlock);
--
2.7.4
next prev parent reply index
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 13:26 [PATCH 0/9] watchdog: of_xilinx_wdt: Update on watchdog driver Srinivas Neeli
2020-01-16 13:26 ` [PATCH 1/9] watchdog: of_xilinx_wdt: Add comment to spinlock Srinivas Neeli
2020-01-16 15:48 ` Guenter Roeck
2020-01-16 13:26 ` [PATCH 2/9] watchdog: of_xilinx_wdt: Used BIT macro Srinivas Neeli
2020-01-16 15:04 ` Guenter Roeck
2020-01-16 13:26 ` [PATCH 3/9] watchdog: of_xilinx_wdt: Used dev_dbg() Srinivas Neeli
2020-01-16 13:26 ` [PATCH 4/9] watchdog: of_xilinx_wdt: Initialize watchdog via data structure Srinivas Neeli
2020-01-16 13:26 ` [PATCH 5/9] watchdog: of_xilinx_wdt: Introduce wdttype enum for identification Srinivas Neeli
2020-01-16 13:26 ` [PATCH 6/9] dt-bindings: watchdog: xilinx: Add binding for Versal watchdog Srinivas Neeli
2020-01-16 13:26 ` [PATCH 7/9] watchdog: of_xilinx_wdt: Add Versal support Srinivas Neeli
2020-01-16 15:07 ` Guenter Roeck
2020-01-16 13:26 ` Srinivas Neeli [this message]
2020-01-16 13:26 ` [PATCH 9/9] watchdog: of_xilinx_wdt: Skip printing pointer value Srinivas Neeli
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