diff options
Diffstat (limited to 'board/telit/evk-pro3/barebox-2013.04.0-0001-watchdog-add-keep-alive-support.patch')
| -rw-r--r-- | board/telit/evk-pro3/barebox-2013.04.0-0001-watchdog-add-keep-alive-support.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/board/telit/evk-pro3/barebox-2013.04.0-0001-watchdog-add-keep-alive-support.patch b/board/telit/evk-pro3/barebox-2013.04.0-0001-watchdog-add-keep-alive-support.patch new file mode 100644 index 000000000..155154603 --- /dev/null +++ b/board/telit/evk-pro3/barebox-2013.04.0-0001-watchdog-add-keep-alive-support.patch @@ -0,0 +1,88 @@ +From b5e57a9f158a293b1151638336478af8a5aad0f0 Mon Sep 17 00:00:00 2001 +From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> +Date: Wed, 14 Nov 2012 19:16:35 +0800 +Subject: [PATCH 1/5] watchdog: add keep alive support + +this will allow to ping the watchdog via poller + +Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> +--- + drivers/watchdog/Kconfig | 1 + + drivers/watchdog/wd_core.c | 21 +++++++++++++++++++++ + include/watchdog.h | 2 ++ + 3 files changed, 24 insertions(+) + +diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig +index 2e2900c..0b4dc84 100644 +--- a/drivers/watchdog/Kconfig ++++ b/drivers/watchdog/Kconfig +@@ -4,6 +4,7 @@ config WATCHDOG_IMX_RESET_SOURCE + + menuconfig WATCHDOG + bool "Watchdog support" ++ select GENERIC_POLLER + help + Many platforms support a watchdog to keep track of a working machine. + This framework provides routines to handle these watchdogs. +diff --git a/drivers/watchdog/wd_core.c b/drivers/watchdog/wd_core.c +index 3d0cfc6..a1b9e28 100644 +--- a/drivers/watchdog/wd_core.c ++++ b/drivers/watchdog/wd_core.c +@@ -17,18 +17,39 @@ + #include <errno.h> + #include <linux/ctype.h> + #include <watchdog.h> ++#include <poller.h> + + /* + * Note: this simple framework supports one watchdog only. + */ + static struct watchdog *watchdog; + ++static void watchdog_poller_func(struct poller_struct *poller) ++{ ++ watchdog->keep_alive(watchdog); ++} ++ ++static struct poller_struct watchdog_poller = { ++ .func = watchdog_poller_func, ++}; ++ + int watchdog_register(struct watchdog *wd) + { + if (watchdog != NULL) + return -EBUSY; + + watchdog = wd; ++ ++ if (watchdog->keep_alive) { ++ int ret; ++ ++ ret = poller_register(&watchdog_poller); ++ if (ret) { ++ watchdog = NULL; ++ return ret; ++ } ++ } ++ + return 0; + } + EXPORT_SYMBOL(watchdog_register); +diff --git a/include/watchdog.h b/include/watchdog.h +index 3e2d08e..d5ecf2f 100644 +--- a/include/watchdog.h ++++ b/include/watchdog.h +@@ -13,8 +13,10 @@ + #ifndef INCLUDE_WATCHDOG_H + # define INCLUDE_WATCHDOG_H + ++ + struct watchdog { + int (*set_timeout)(struct watchdog *, unsigned); ++ void (*keep_alive)(struct watchdog *); + }; + + int watchdog_register(struct watchdog *); +-- +1.8.1.4 + |