diff options
| author | James Hilliard <james.hilliard1@gmail.com> | 2026-08-27 22:42:31 -0600 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-08-30 14:41:21 -0700 |
| commit | aab55360fa11a2c054798a484ac67ad606f563e4 (patch) | |
| tree | 81e3747cc2d65e1d72937f1655fbceec0b38ab1e /scripts/basic/split-include.c | |
| parent | cee9395acd8043be0644b25c34bfa86623f2b935 (diff) | |
| download | linux-aab55360fa11a2c054798a484ac67ad606f563e4.tar.gz linux-aab55360fa11a2c054798a484ac67ad606f563e4.zip | |
watchdog: sunxi_wdt: preserve boot-enabled watchdog
sunxi_wdt_probe() unconditionally stops the watchdog even when firmware
left it running. This opens an unprotected interval during boot and
prevents CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED from taking over the active
watchdog.
Detect an enabled watchdog and decode its programmed interval. Preserve
representable timeouts, and round the 0.5-second interval up to the
minimum representable one-second timeout. Use the configured timeout for
reserved interval encodings. Set the Linux reset mode and ping the
watchdog without clearing its enable bit, then mark it hardware-running
before registration so the watchdog core services it until userspace
takes control. Leave disabled watchdogs untouched.
Fixes: d00680ed0026 ("watchdog: sunxi: New watchdog driver for Allwinner A10/A13")
Cc: stable@vger.kernel.org
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Link: https://patch.msgid.link/20260827-submit-sunxi-wdt-boot-enabled-v1-v2-1-610d37dccc97@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'scripts/basic/split-include.c')
0 files changed, 0 insertions, 0 deletions