[PATCH 003/100] rtc: cmos: let the core handle invalid time

From: Alexandre Belloni
Date: Wed Feb 21 2018 - 16:24:02 EST


Setting the rtc to a valid time when the time is invalid is a bad practice,
because then userspace doesn't know it shouldn't trust the RTC.

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
drivers/rtc/rtc-cmos.c | 12 ------------
1 file changed, 12 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index b8ec6009171a..d98ad4874d8b 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1262,8 +1262,6 @@ MODULE_DEVICE_TABLE(of, of_cmos_match);
static __init void cmos_of_init(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
- struct rtc_time time;
- int ret;
const __be32 *val;

if (!node)
@@ -1276,16 +1274,6 @@ static __init void cmos_of_init(struct platform_device *pdev)
val = of_get_property(node, "freq-reg", NULL);
if (val)
CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
-
- cmos_read_time(&pdev->dev, &time);
- ret = rtc_valid_tm(&time);
- if (ret) {
- struct rtc_time def_time = {
- .tm_year = 1,
- .tm_mday = 1,
- };
- cmos_set_time(&pdev->dev, &def_time);
- }
}
#else
static inline void cmos_of_init(struct platform_device *pdev) {}
--
2.16.1