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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-12-11 15:58:16 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-12-11 15:58:16 +0300 |
| commit | 761bfc33dd7504de951aa7b9db27a3cc5df1fde6 (patch) | |
| tree | 93f4ac22fb206fe214998a599f4d2ea0214be70a /drivers/rtc/rtc-pcf2127.c | |
| parent | 0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff) | |
| parent | 6794862a16ef41f753abd75c03a152836e4c8028 (diff) | |
| download | linux-761bfc33dd7504de951aa7b9db27a3cc5df1fde6.tar.xz | |
Merge remote-tracking branch 'torvalds/master' into perf/urgent
To pick up BPF fixes to allow a clean 'make -C tools/perf build-test':
7c3977d1e804 libbpf: Fix sym->st_value print on 32-bit arches
1fd450f99272 libbpf: Fix up generation of bpf_helper_defs.h
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/rtc/rtc-pcf2127.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf2127.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 02b069caffd5..ba5baaca47be 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -417,6 +417,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, const char *name, bool has_nvmem) { struct pcf2127 *pcf2127; + u32 wdd_timeout; int ret = 0; dev_dbg(dev, "%s\n", __func__); @@ -459,7 +460,6 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, /* * Watchdog timer enabled and reset pin /RST activated when timed out. * Select 1Hz clock source for watchdog timer. - * Timer is not started until WD_VAL is loaded with a valid value. * Note: Countdown timer disabled and not available. */ ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_WD_CTL, @@ -475,6 +475,14 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, return ret; } + /* Test if watchdog timer is started by bootloader */ + ret = regmap_read(pcf2127->regmap, PCF2127_REG_WD_VAL, &wdd_timeout); + if (ret) + return ret; + + if (wdd_timeout) + set_bit(WDOG_HW_RUNNING, &pcf2127->wdd.status); + #ifdef CONFIG_WATCHDOG ret = devm_watchdog_register_device(dev, &pcf2127->wdd); if (ret) |