diff options
| author | Ji-Ze Hong (Peter Hong) <hpeter@gmail.com> | 2019-03-27 14:42:51 +0800 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2019-05-05 21:02:10 +0200 |
| commit | e347afa5fb488132be61f1222e4cf6b87255021c (patch) | |
| tree | 85fb0e6dda71e9fb71943ce5c50045f93ae52897 /drivers | |
| parent | a3f764d2eea537f6eb502b23f915d1caaec2b7ea (diff) | |
| download | linux-e347afa5fb488132be61f1222e4cf6b87255021c.tar.gz | |
watchdog: f71808e_wdt: fix F81866 bit operation
Fix error bit operation in watchdog_start()
Fixes: 14b24a88a3660 ("watchdog: f71808e_wdt: Add F81866 support")
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/watchdog/f71808e_wdt.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c index bd2ced9f39f4..afd1446241b3 100644 --- a/drivers/watchdog/f71808e_wdt.c +++ b/drivers/watchdog/f71808e_wdt.c @@ -339,6 +339,7 @@ static int f71862fg_pin_configure(unsigned short ioaddr) static int watchdog_start(void) { int err; + u8 tmp; /* Make sure we don't die as soon as the watchdog is enabled below */ err = watchdog_keepalive(); @@ -388,19 +389,18 @@ static int watchdog_start(void) break; case f81866: - /* Set pin 70 to WDTRST# */ - superio_clear_bit(watchdog.sioaddr, SIO_F81866_REG_PORT_SEL, - BIT(3) | BIT(0)); - superio_set_bit(watchdog.sioaddr, SIO_F81866_REG_PORT_SEL, - BIT(2)); /* * GPIO1 Control Register when 27h BIT3:2 = 01 & BIT0 = 0. * The PIN 70(GPIO15/WDTRST) is controlled by 2Ch: * BIT5: 0 -> WDTRST# * 1 -> GPIO15 */ - superio_clear_bit(watchdog.sioaddr, SIO_F81866_REG_GPIO1, - BIT(5)); + tmp = superio_inb(watchdog.sioaddr, SIO_F81866_REG_PORT_SEL); + tmp &= ~(BIT(3) | BIT(0)); + tmp |= BIT(2); + superio_outb(watchdog.sioaddr, SIO_F81866_REG_PORT_SEL, tmp); + + superio_clear_bit(watchdog.sioaddr, SIO_F81866_REG_GPIO1, 5); break; default: |