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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2018-02-21 11:44:26 +0100
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2018-03-01 10:49:39 +0100
commit812318a094d0715194d9f686b22ee67e7dc59d93 (patch)
treef28012e390919dc1b118606a722ad06a1f3d341d /drivers/rtc/rtc-cmos.c
parent7d1bd37ff06b9e7c49dc033fce4069f69ad6e564 (diff)
downloadlinux-812318a094d0715194d9f686b22ee67e7dc59d93.tar.gz
rtc: cmos: let the core handle invalid time
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@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-cmos.c')
-rw-r--r--drivers/rtc/rtc-cmos.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index b8ec6009171af..d98ad4874d8b4 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) {}