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authorSamuel Tardieu <sam@rfc1149.net>2006-09-07 11:57:00 +0200
committerWim Van Sebroeck <wim@iguana.be>2006-10-04 22:45:21 +0200
commita7933e05d46f49385841d09028ee07fae2b383f2 (patch)
tree57e72c5167643a5501de03b644eb4a6e5400b14b /drivers/char
parentc81b2996253a94278057f83a24dfa9053f0dee7a (diff)
[WATCHDOG] w83697hf/hg WDT driver - patch 11
This is patch 11 in the series of patches that converts Marcus Junker's w83697hf watchdog driver to Samuel Tardieau's w83697hf/hg watchdog driver. This patch contains following changes: - Add w83697hf_select_wdt() and w83697hf_deselect_wdt() so that the start/stop/ping code can directly talk to the watchdog. Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/watchdog/w83697hf_wdt.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/char/watchdog/w83697hf_wdt.c b/drivers/char/watchdog/w83697hf_wdt.c
index 4e0bd4e714e..b12f8b80076 100644
--- a/drivers/char/watchdog/w83697hf_wdt.c
+++ b/drivers/char/watchdog/w83697hf_wdt.c
@@ -102,6 +102,19 @@ w83697hf_set_reg(unsigned char reg, unsigned char data)
}
static void
+w83697hf_select_wdt(void)
+{
+ w83697hf_unlock();
+ w83697hf_set_reg(0x07, 0x08); /* Switch to logic device 8 (GPIO2) */
+}
+
+static inline void
+w83697hf_deselect_wdt(void)
+{
+ w83697hf_lock();
+}
+
+static void
w83697hf_select_wd_register(void)
{
w83697hf_unlock();
@@ -142,11 +155,11 @@ wdt_ctrl(int timeout)
{
spin_lock(&io_lock);
- w83697hf_select_wd_register();
+ w83697hf_select_wdt();
w83697hf_set_reg(0xF4, timeout); /* Write Timeout counter to CRF4 */
- w83697hf_unselect_wd_register();
+ w83697hf_deselect_wdt();
spin_unlock(&io_lock);
}