Add support for the subcommand wdt gettimeout in the U-Boot shell. The command queries the selected watchdog device and reports its timeout when the driver implements get_timeout operation. This exposes the timeout printing added to the watchdog uclass to the shell interface.
Signed-off-by: Juuso Rinta <[email protected]> --- cmd/wdt.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/cmd/wdt.c b/cmd/wdt.c index c7a06cca181..3e2ca069fe9 100644 --- a/cmd/wdt.c +++ b/cmd/wdt.c @@ -131,6 +131,30 @@ static int do_wdt_reset(struct cmd_tbl *cmdtp, int flag, int argc, return CMD_RET_SUCCESS; } +static int do_wdt_gettimeout(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + int ret; + u64 timeout_ms = 0; + + ret = check_currdev(); + if (ret) + return ret; + + ret = wdt_get_timeout(currdev, &timeout_ms); + if (ret == -ENOSYS) { + printf("Getting watchdog timeout not supported.\n"); + return CMD_RET_FAILURE; + } else if (ret) { + printf("Getting watchdog timeout failed (%d)\n", ret); + return CMD_RET_FAILURE; + } + + printf("Timeout: %llums\n", timeout_ms); + + return CMD_RET_SUCCESS; +} + static int do_wdt_expire(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { @@ -162,6 +186,7 @@ U_BOOT_LONGHELP(wdt, "wdt start <timeout ms> [flags] - start watchdog timer\n" "wdt stop - stop watchdog timer\n" "wdt reset - reset watchdog timer\n" + "wdt gettimeout - get device timeout in ms\n" "wdt expire [flags] - expire watchdog timer immediately\n"); U_BOOT_CMD_WITH_SUBCMDS(wdt, "Watchdog sub-system", wdt_help_text, @@ -170,4 +195,5 @@ U_BOOT_CMD_WITH_SUBCMDS(wdt, "Watchdog sub-system", wdt_help_text, U_BOOT_SUBCMD_MKENT(start, 3, 1, do_wdt_start), U_BOOT_SUBCMD_MKENT(stop, 1, 1, do_wdt_stop), U_BOOT_SUBCMD_MKENT(reset, 1, 1, do_wdt_reset), + U_BOOT_SUBCMD_MKENT(gettimeout, 1, 1, do_wdt_gettimeout), U_BOOT_SUBCMD_MKENT(expire, 2, 1, do_wdt_expire)); -- 2.39.2
