From a7933e05d46f49385841d09028ee07fae2b383f2 Mon Sep 17 00:00:00 2001 From: Samuel Tardieu Date: Thu, 7 Sep 2006 11:57:00 +0200 Subject: [PATCH] [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 Signed-off-by: Wim Van Sebroeck --- drivers/char/watchdog/w83697hf_wdt.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/char/watchdog/w83697hf_wdt.c b/drivers/char/watchdog/w83697hf_wdt.c index 4e0bd4e714e3..b12f8b800762 100644 --- a/drivers/char/watchdog/w83697hf_wdt.c +++ b/drivers/char/watchdog/w83697hf_wdt.c @@ -101,6 +101,19 @@ w83697hf_set_reg(unsigned char reg, unsigned char data) outb_p(data, W83697HF_EFDR); } +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) { @@ -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); } -- 2.20.1