diff options
| author | Biwen Li <biwen.li@nxp.com> | 2020-12-02 11:18:39 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2021-02-13 22:38:13 +0100 |
| commit | 2843d565dd78fd9117b9a18567cf68ac37a5dd1e (patch) | |
| tree | 096843d24a9f84299fe69f4dd7641aa2aa95c465 /drivers/rtc/rtc-pcf2127.c | |
| parent | 198be9898b9e62bea65f39b04d35f56d76c8bede (diff) | |
| download | linux-next-2843d565dd78fd9117b9a18567cf68ac37a5dd1e.tar.gz | |
rtc: pcf2127: properly set flag WD_CD for rtc chips(pcf2129, pca2129)
Properly set flag WD_CD for rtc chips(pcf2129, pca2129)
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201202031840.15582-1-biwen.li@oss.nxp.com
Diffstat (limited to 'drivers/rtc/rtc-pcf2127.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf2127.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 33c04e1daa95..d13c20a2adf7 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -558,7 +558,7 @@ static const struct attribute_group pcf2127_attr_group = { }; static int pcf2127_probe(struct device *dev, struct regmap *regmap, - int alarm_irq, const char *name, bool has_nvmem) + int alarm_irq, const char *name, bool is_pcf2127) { struct pcf2127 *pcf2127; int ret = 0; @@ -601,7 +601,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, set_bit(RTC_FEATURE_ALARM, pcf2127->rtc->features); } - if (has_nvmem) { + if (is_pcf2127) { struct nvmem_config nvmem_cfg = { .priv = pcf2127, .reg_read = pcf2127_nvmem_read, @@ -636,6 +636,10 @@ 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. * Note: Countdown timer disabled and not available. + * For pca2129, pcf2129, only bit[7] is for Symbol WD_CD + * of register watchdg_tim_ctl. The bit[6] is labeled + * as T. Bits labeled as T must always be written with + * logic 0. */ ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_WD_CTL, PCF2127_BIT_WD_CTL_CD1 | @@ -643,7 +647,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, PCF2127_BIT_WD_CTL_TF1 | PCF2127_BIT_WD_CTL_TF0, PCF2127_BIT_WD_CTL_CD1 | - PCF2127_BIT_WD_CTL_CD0 | + (is_pcf2127 ? PCF2127_BIT_WD_CTL_CD0 : 0) | PCF2127_BIT_WD_CTL_TF1); if (ret) { dev_err(dev, "%s: watchdog config (wd_ctl) failed\n", __func__); |