Merge tag 'rtc-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "A huge series from me this cycle. I went through many drivers to set
  the date and time range supported by the RTC which helps solving HW
  limitation when the time comes (as early as next year for some). This
  time, I focused on drivers using .set_mms and .set_mmss64, allowing me
  to remove those callbacks. About a third of the patches got reviews, I
  actually own the RTCs and I tested another third and the remaining one
  are unlikely to cause any issues.

  Other than that, a single new driver and the usual fixes here and there.

  Summary:

  Subsystem:

   - set_mmss and set_mmss64 rtc_ops removal

   - Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900

   - Use SPDX identifier for the core

   - validate upper bound of tm->tm_year

  New driver:

   - Aspeed BMC SoC RTC

  Drivers:

   - abx80x: use rtc_add_group

   - ds3232: nvram support

   - pcf85063: add alarm, nvram, offset correction and microcrystal
     rv8263 support

   - x1205: add of_match_table

   - Use set_time instead of set_mms/set_mmss64 for: ab3100, coh901331,
     digicolor, ds1672, ds2404, ep93xx, imxdi, jz4740, lpc32xx, mc13xxx,
     mxc, pcap, stmp3xxx, test, wm831x, xgene.

   - Set RTC range for: ab3100, at91sam9, coh901331, da9063, digicolor,
     dm355evm, ds1672, ds2404, ep39xx, goldfish, imxdi, jz4740, lpc32xx,
     mc13xxx, mv, mxc, omap, pcap, pcf85063, pcf85363, ps3, sh,
     stmp3xxx, sun4v, tegra, wm831x, xgene.

   - Switch to rtc_time64_to_tm/rtc_tm_to_time64 for the driver that
     properly set the RTC range.

   - Use dev_get_drvdata instead of multiple indirections"

* tag 'rtc-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (177 commits)
  rtc: snvs: Use __maybe_unused instead of #if CONFIG_PM_SLEEP
  rtc: imxdi: remove unused variable
  rtc: drop set_mms and set_mmss64
  rtc: pcap: convert to SPDX identifier
  rtc: pcap: use .set_time
  rtc: pcap: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: pcap: set range
  rtc: digicolor: convert to SPDX identifier
  rtc: digicolor: use .set_time
  rtc: digicolor: set range
  rtc: digicolor: fix possible race condition
  rtc: jz4740: convert to SPDX identifier
  rtc: jz4740: rework invalid time detection
  rtc: jz4740: use dev_pm_set_wake_irq() to simplify code
  rtc: jz4740: use .set_time
  rtc: jz4740: remove useless check
  rtc: jz4740: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: jz4740: set range
  rtc: 88pm860x: prevent use-after-free on device remove
  rtc: Use dev_get_drvdata()
  ...

1 files changed, 12 insertions, 16 deletions

diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c
index f176cb9d0dbc..178bfb1dea21 100644
--- a/drivers/rtc/rtc-pcap.c
+++ b/drivers/rtc/rtc-pcap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  pcap rtc code for Motorola EZX phones
  *
@@ -5,11 +6,6 @@
  *  Copyright (c) 2009 Daniel Ribeiro <drwyrm@gmail.com>
  *
  *  Based on Motorola's rtc.c Copyright (c) 2003-2005 Motorola
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  */
 
 #include <linux/kernel.h>
@@ -55,7 +51,7 @@ static int pcap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
         ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAYA, &days);
         secs += (days & PCAP_RTC_DAY_MASK) * SEC_PER_DAY;
 
-        rtc_time_to_tm(secs, tm);
+        rtc_time64_to_tm(secs, tm);
 
         return 0;
 }
@@ -63,12 +59,9 @@ static int pcap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int pcap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
         struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
-        struct rtc_time *tm = &alrm->time;
-        unsigned long secs;
+        unsigned long secs = rtc_tm_to_time64(&alrm->time);
         u32 tod, days;
 
-        rtc_tm_to_time(tm, &secs);
-
         tod = secs % SEC_PER_DAY;
         ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_TODA, tod);
 
@@ -90,14 +83,15 @@ static int pcap_rtc_read_time(struct device *dev, struct rtc_time *tm)
         ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAY, &days);
         secs += (days & PCAP_RTC_DAY_MASK) * SEC_PER_DAY;
 
-        rtc_time_to_tm(secs, tm);
+        rtc_time64_to_tm(secs, tm);
 
         return 0;
 }
 
-static int pcap_rtc_set_mmss(struct device *dev, unsigned long secs)
+static int pcap_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
         struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
+        unsigned long secs = rtc_tm_to_time64(tm);
         u32 tod, days;
 
         tod = secs % SEC_PER_DAY;
@@ -128,9 +122,9 @@ static int pcap_rtc_alarm_irq_enable(struct device *dev, unsigned int en)
 
 static const struct rtc_class_ops pcap_rtc_ops = {
         .read_time = pcap_rtc_read_time,
+        .set_time = pcap_rtc_set_time,
         .read_alarm = pcap_rtc_read_alarm,
         .set_alarm = pcap_rtc_set_alarm,
-        .set_mmss = pcap_rtc_set_mmss,
         .alarm_irq_enable = pcap_rtc_alarm_irq_enable,
 };
 
@@ -149,11 +143,13 @@ static int __init pcap_rtc_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, pcap_rtc);
 
-        pcap_rtc->rtc = devm_rtc_device_register(&pdev->dev, "pcap",
-                                        &pcap_rtc_ops, THIS_MODULE);
+        pcap_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
         if (IS_ERR(pcap_rtc->rtc))
                 return PTR_ERR(pcap_rtc->rtc);
 
+        pcap_rtc->rtc->ops = &pcap_rtc_ops;
+        pcap_rtc->rtc->range_max = (1 << 14) * 86400ULL - 1;
+
         timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ);
         alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA);
 
@@ -167,7 +163,7 @@ static int __init pcap_rtc_probe(struct platform_device *pdev)
         if (err)
                 return err;
 
-        return 0;
+        return rtc_register_device(pcap_rtc->rtc);
 }
 
 static int __exit pcap_rtc_remove(struct platform_device *pdev)