Merge tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This contains a few series that have been in preparation for a while
  and that will help systems with RTCs that will fail in 2038, 2069 or
  2100.

  Subsystem:
   - Add tracepoints
   - Rework of the RTC/nvmem API to allow drivers to discard struct
     nvmem_config after registration
   - New range API, drivers can now expose the useful range of the RTC
   - New offset API the core is now able to add an offset to the RTC
     time, modifying the supported range.
   - Multiple rtc_time64_to_tm fixes
   - Handle time_t overflow on 32 bit platforms in the core instead of
     letting drivers do crazy things.
   - remove rtc_control API

  New driver:
   - Intersil ISL12026

  Drivers:
   - Drivers exposing the RTC non volatile memory have been converted to
     use nvmem
   - Removed useless time and date validation
   - Removed an indirection pattern that was a cargo cult from ancient
     drivers
   - Removed VLA usage
   - Fixed a possible race condition in probe functions
   - AB8540 support is dropped from ab8500
   - pcf85363 now has alarm support"

* tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (128 commits)
  rtc: snvs: Fix usage of snvs_rtc_enable
  rtc: mt7622: fix module autoloading for OF platform drivers
  rtc: isl12022: use true and false for boolean values
  rtc: ab8500: Drop AB8540 support
  rtc: remove a warning during scripts/kernel-doc step
  rtc: 88pm860x: remove artificial limitation
  rtc: 88pm80x: remove artificial limitation
  rtc: st-lpc: remove artificial limitation
  rtc: mrst: remove artificial limitation
  rtc: mv: remove artificial limitation
  rtc: hctosys: Ensure system time doesn't overflow time_t
  parisc: time: stop validating rtc_time in .read_time
  rtc: pcf85063: fix clearing bits in pcf85063_start_clock
  rtc: at91sam9: Set name of regmap_config
  rtc: s5m: Remove VLA usage
  rtc: s5m: Move enum from rtc.h to rtc-s5m.c
  rtc: remove VLA usage
  rtc: Add useful timestamp definitions
  rtc: Add one offset seconds to expand RTC range
  rtc: Factor out the RTC range validation into rtc_valid_range()
  ...

1 files changed, 16 insertions, 16 deletions

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 923dde912f60..a13e59edff53 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -114,7 +114,6 @@ enum ds_type {
 #	define RX8025_BIT_XST		0x20
 
 struct ds1307 {
-	struct nvmem_config	nvmem_cfg;
 	enum ds_type		type;
 	unsigned long		flags;
 #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
@@ -438,8 +437,7 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
 		t->tm_hour, t->tm_mday,
 		t->tm_mon, t->tm_year, t->tm_wday);
 
-	/* initial clock setting can be undefined */
-	return rtc_valid_tm(t);
+	return 0;
 }
 
 static int ds1307_set_time(struct device *dev, struct rtc_time *t)
@@ -1696,24 +1694,26 @@ read_rtc:
 		}
 	}
 
-	if (chip->nvram_size) {
-		ds1307->nvmem_cfg.name = "ds1307_nvram";
-		ds1307->nvmem_cfg.word_size = 1;
-		ds1307->nvmem_cfg.stride = 1;
-		ds1307->nvmem_cfg.size = chip->nvram_size;
-		ds1307->nvmem_cfg.reg_read = ds1307_nvram_read;
-		ds1307->nvmem_cfg.reg_write = ds1307_nvram_write;
-		ds1307->nvmem_cfg.priv = ds1307;
-
-		ds1307->rtc->nvmem_config = &ds1307->nvmem_cfg;
-		ds1307->rtc->nvram_old_abi = true;
-	}
-
 	ds1307->rtc->ops = chip->rtc_ops ?: &ds13xx_rtc_ops;
 	err = rtc_register_device(ds1307->rtc);
 	if (err)
 		return err;
 
+	if (chip->nvram_size) {
+		struct nvmem_config nvmem_cfg = {
+			.name = "ds1307_nvram",
+			.word_size = 1,
+			.stride = 1,
+			.size = chip->nvram_size,
+			.reg_read = ds1307_nvram_read,
+			.reg_write = ds1307_nvram_write,
+			.priv = ds1307,
+		};
+
+		ds1307->rtc->nvram_old_abi = true;
+		rtc_nvmem_register(ds1307->rtc, &nvmem_cfg);
+	}
+
 	ds1307_hwmon_register(ds1307);
 	ds1307_clks_register(ds1307);