drivers/rtc/rtc-s5m.c: add support for S2MPS13 RTC
The S2MPS13 RTC is almost the same as S2MPS14. The differences when
updating alarm are:
1. Set WUDR+AUDR field instead of WUDR+RUDR.
2. Clear the AUDR field later (it is not auto-cleared).
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 4008b84..f0cb0ec 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -187,6 +187,7 @@
val &= S5M_ALARM0_STATUS;
break;
case S2MPS14X:
+ case S2MPS13X:
ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2,
&val);
val &= S2MPS_ALARM0_STATUS;
@@ -252,6 +253,9 @@
case S2MPS14X:
data |= S2MPS_RTC_RUDR_MASK;
break;
+ case S2MPS13X:
+ data |= S2MPS13_RTC_AUDR_MASK;
+ break;
default:
return -EINVAL;
}
@@ -265,6 +269,11 @@
ret = s5m8767_wait_for_udr_update(info);
+ /* On S2MPS13 the AUDR is not auto-cleared */
+ if (info->device_type == S2MPS13X)
+ regmap_update_bits(info->regmap, info->regs->rtc_udr_update,
+ S2MPS13_RTC_AUDR_MASK, 0);
+
return ret;
}
@@ -306,7 +315,7 @@
u8 data[info->regs->regs_count];
int ret;
- if (info->device_type == S2MPS14X) {
+ if (info->device_type == S2MPS14X || info->device_type == S2MPS13X) {
ret = regmap_update_bits(info->regmap,
info->regs->rtc_udr_update,
S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK);
@@ -329,6 +338,7 @@
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
break;
@@ -355,6 +365,7 @@
break;
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
ret = s5m8767_tm_to_data(tm, data);
break;
default:
@@ -402,6 +413,7 @@
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
alrm->enabled = 0;
for (i = 0; i < info->regs->regs_count; i++) {
@@ -450,6 +462,7 @@
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
for (i = 0; i < info->regs->regs_count; i++)
data[i] &= ~ALARM_ENABLE_MASK;
@@ -494,6 +507,7 @@
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
data[RTC_SEC] |= ALARM_ENABLE_MASK;
data[RTC_MIN] |= ALARM_ENABLE_MASK;
data[RTC_HOUR] |= ALARM_ENABLE_MASK;
@@ -533,6 +547,7 @@
case S5M8767X:
case S2MPS14X:
+ case S2MPS13X:
s5m8767_tm_to_data(&alrm->time, data);
break;
@@ -615,6 +630,7 @@
break;
case S2MPS14X:
+ case S2MPS13X:
data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
ret = regmap_write(info->regmap, info->regs->ctrl, data[0]);
break;
@@ -652,6 +668,7 @@
switch (pdata->device_type) {
case S2MPS14X:
+ case S2MPS13X:
regmap_cfg = &s2mps14_rtc_regmap_config;
info->regs = &s2mps_rtc_regs;
alarm_irq = S2MPS14_IRQ_RTCA0;
@@ -772,6 +789,7 @@
static const struct platform_device_id s5m_rtc_id[] = {
{ "s5m-rtc", S5M8767X },
+ { "s2mps13-rtc", S2MPS13X },
{ "s2mps14-rtc", S2MPS14X },
{ },
};