Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:
 "Core:
   - min and max timeout improvements, WDOG_HW_RUNNING improvements,
     status funtionality
   - Add a device managed API for watchdog_register_device()

  New watchdog drivers:
   -  Aspeed SoCs
   -  Maxim PMIC MAX77620
   -  Amlogic Meson GXBB SoC

  Enhancements:
   - support for the r8a7796 watchdog device
   - support for F81866 watchdog device
   - support for 5th variation of Apollo Lake
   - support for MCP78S chipset
   - clean-up of softdog.c watchdog device driver
   - pic32-wdt and pic32-dmt fixes
   - Documentation/watchdog: watchdog-test improvements
   - several other fixes and improvements"

* git://www.linux-watchdog.org/linux-watchdog: (50 commits)
  watchdog: gpio_wdt: Fix missing platform_set_drvdata() in gpio_wdt_probe()
  watchdog: core: Clear WDOG_HW_RUNNING before calling the stop function
  watchdog: core: Fix error handling of watchdog_dev_init()
  watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe()
  watchdog: pic32-dmt: Remove .owner field for driver
  watchdog: pic32-wdt: Remove .owner field for driver
  watchdog: renesas-wdt: Add support for the r8a7796 wdt
  Documentation/watchdog: check return value for magic close
  watchdog: sbsa: Drop status function
  watchdog: Implement status function in watchdog core
  watchdog: tangox: Set max_hw_heartbeat_ms instead of max_timeout
  watchdog: change watchdog_need_worker logic
  watchdog: add support for MCP78S chipset in nv_tco
  watchdog: bcm2835_wdt: remove redundant ->set_timeout callback
  watchdog: bcm2835_wdt: constify _ops and _info structures
  dt-bindings: watchdog: Add Meson GXBB Watchdog bindings
  watchdog: Add Meson GXBB Watchdog Driver
  watchdog: qcom: configure BARK time in addition to BITE time
  watchdog: qcom: add option for standalone watchdog not in timer block
  watchdog: qcom: update device tree bindings
  ...

1 files changed, 23 insertions, 16 deletions

diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c
index fcdde8f..6983d05 100644
--- a/Documentation/watchdog/src/watchdog-test.c
+++ b/Documentation/watchdog/src/watchdog-test.c
@@ -2,6 +2,7 @@
  * Watchdog Driver Test Program
  */
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -13,6 +14,7 @@
 #include <linux/watchdog.h>
 
 int fd;
+const char v = 'V';
 
 /*
  * This function simply sends an IOCTL to the driver, which in turn ticks
@@ -23,6 +25,7 @@ static void keep_alive(void)
 {
     int dummy;
 
+    printf(".");
     ioctl(fd, WDIOC_KEEPALIVE, &dummy);
 }
 
@@ -33,8 +36,13 @@ static void keep_alive(void)
 
 static void term(int sig)
 {
+    int ret = write(fd, &v, 1);
+
     close(fd);
-    fprintf(stderr, "Stopping watchdog ticks...\n");
+    if (ret < 0)
+	printf("\nStopping watchdog ticks failed (%d)...\n", errno);
+    else
+	printf("\nStopping watchdog ticks...\n");
     exit(0);
 }
 
@@ -42,12 +50,14 @@ int main(int argc, char *argv[])
 {
     int flags;
     unsigned int ping_rate = 1;
+    int ret;
+
+    setbuf(stdout, NULL);
 
     fd = open("/dev/watchdog", O_WRONLY);
 
     if (fd == -1) {
-	fprintf(stderr, "Watchdog device not enabled.\n");
-	fflush(stderr);
+	printf("Watchdog device not enabled.\n");
 	exit(-1);
     }
 
@@ -55,36 +65,30 @@ int main(int argc, char *argv[])
 	if (!strncasecmp(argv[1], "-d", 2)) {
 	    flags = WDIOS_DISABLECARD;
 	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
-	    fprintf(stderr, "Watchdog card disabled.\n");
-	    fflush(stderr);
+	    printf("Watchdog card disabled.\n");
 	    goto end;
 	} else if (!strncasecmp(argv[1], "-e", 2)) {
 	    flags = WDIOS_ENABLECARD;
 	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
-	    fprintf(stderr, "Watchdog card enabled.\n");
-	    fflush(stderr);
+	    printf("Watchdog card enabled.\n");
 	    goto end;
 	} else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) {
 	    flags = atoi(argv[2]);
 	    ioctl(fd, WDIOC_SETTIMEOUT, &flags);
-	    fprintf(stderr, "Watchdog timeout set to %u seconds.\n", flags);
-	    fflush(stderr);
+	    printf("Watchdog timeout set to %u seconds.\n", flags);
 	    goto end;
 	} else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) {
 	    ping_rate = strtoul(argv[2], NULL, 0);
-	    fprintf(stderr, "Watchdog ping rate set to %u seconds.\n", ping_rate);
-	    fflush(stderr);
+	    printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
 	} else {
-	    fprintf(stderr, "-d to disable, -e to enable, -t <n> to set " \
+	    printf("-d to disable, -e to enable, -t <n> to set " \
 		"the timeout,\n-p <n> to set the ping rate, and \n");
-	    fprintf(stderr, "run by itself to tick the card.\n");
-	    fflush(stderr);
+	    printf("run by itself to tick the card.\n");
 	    goto end;
 	}
     }
 
-    fprintf(stderr, "Watchdog Ticking Away!\n");
-    fflush(stderr);
+    printf("Watchdog Ticking Away!\n");
 
     signal(SIGINT, term);
 
@@ -93,6 +97,9 @@ int main(int argc, char *argv[])
 	sleep(ping_rate);
     }
 end:
+    ret = write(fd, &v, 1);
+    if (ret < 0)
+	printf("Stopping watchdog ticks failed (%d)...\n", errno);
     close(fd);
     return 0;
 }