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, 19 insertions, 28 deletions

diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index c6b0a99aa3a9..f0ce76865434 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * An RTC driver for the NVIDIA Tegra 200 series internal RTC.
  *
  * Copyright (c) 2010, NVIDIA Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
 #include <linux/clk.h>
@@ -123,7 +110,7 @@ static int tegra_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 	spin_unlock_irqrestore(&info->tegra_rtc_lock, sl_irq_flags);
 
-	rtc_time_to_tm(sec, tm);
+	rtc_time64_to_tm(sec, tm);
 
 	dev_vdbg(dev, "time read as %lu. %ptR\n", sec, tm);
 
@@ -137,7 +124,7 @@ static int tegra_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	int ret;
 
 	/* convert tm to seconds. */
-	rtc_tm_to_time(tm, &sec);
+	sec = rtc_tm_to_time64(tm);
 
 	dev_vdbg(dev, "time set to %lu. %ptR\n", sec, tm);
 
@@ -166,7 +153,7 @@ static int tegra_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	} else {
 		/* alarm is enabled. */
 		alarm->enabled = 1;
-		rtc_time_to_tm(sec, &alarm->time);
+		rtc_time64_to_tm(sec, &alarm->time);
 	}
 
 	tmp = readl(info->rtc_base + TEGRA_RTC_REG_INTR_STATUS);
@@ -204,7 +191,7 @@ static int tegra_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	unsigned long sec;
 
 	if (alarm->enabled)
-		rtc_tm_to_time(&alarm->time, &sec);
+		sec = rtc_tm_to_time64(&alarm->time);
 	else
 		sec = 0;
 
@@ -306,6 +293,13 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
 
 	info->tegra_rtc_irq = ret;
 
+	info->rtc_dev = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(info->rtc_dev))
+		return PTR_ERR(info->rtc_dev);
+
+	info->rtc_dev->ops = &tegra_rtc_ops;
+	info->rtc_dev->range_max = U32_MAX;
+
 	info->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(info->clk))
 		return PTR_ERR(info->clk);
@@ -327,16 +321,6 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 1);
 
-	info->rtc_dev = devm_rtc_device_register(&pdev->dev,
-				dev_name(&pdev->dev), &tegra_rtc_ops,
-				THIS_MODULE);
-	if (IS_ERR(info->rtc_dev)) {
-		ret = PTR_ERR(info->rtc_dev);
-		dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
-			ret);
-		goto disable_clk;
-	}
-
 	ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
 			tegra_rtc_irq_handler, IRQF_TRIGGER_HIGH,
 			dev_name(&pdev->dev), &pdev->dev);
@@ -347,6 +331,13 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
 		goto disable_clk;
 	}
 
+	ret = rtc_register_device(info->rtc_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
+			ret);
+		goto disable_clk;
+	}
+
 	dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");
 
 	return 0;