Merge tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "A great rework of the isl12022 driver makes up the bulk of the
  changes. There is also an important fix for CMOS and then the usual
  small fixes:

   - switch to devm_clk_get_enabled() where relevant

   - cmos: event handler registration fix

   - isl12022: code improvements"

* tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: rv3028: Fix codestyle errors
  rtc: cmos: Fix event handler registration ordering issue
  rtc: k3: Use devm_clk_get_enabled() helper
  rtc: jz4740: Use devm_clk_get_enabled() helper
  rtc: mpfs: Use devm_clk_get_enabled() helper
  rtc: ds1685: Fix spelling of function name in comment block
  rtc: isl12022: switch to using regmap API
  rtc: isl12022: drop redundant write to HR register
  rtc: isl12022: use dev_set_drvdata() instead of i2c_set_clientdata()
  rtc: isl12022: use %ptR
  rtc: isl12022: simplify some expressions
  rtc: isl12022: drop a dev_info()
  rtc: isl12022: specify range_min and range_max
  rtc: isl12022: stop using deprecated devm_rtc_device_register()
  rtc: stmp3xxx: Add failure handling for stmp3xxx_wdt_register()
  rtc: mxc: Use devm_clk_get_enabled() helper
  rtc: gamecube: Always reset HW_SRNPROT after read
  rtc: k3: detect SoC to determine erratum fix
  rtc: k3: wait until the unlock field is not zero
  rtc: mpfs: Remove printing of stray CR

11 files changed, 98 insertions, 247 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index b8de25118ad0..bb63edb507da 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -423,6 +423,7 @@ config RTC_DRV_ISL1208
 
 config RTC_DRV_ISL12022
 	tristate "Intersil ISL12022"
+	select REGMAP_I2C
 	help
 	  If you say yes here you get support for the
 	  Intersil ISL12022 RTC chip.
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index bdb1df843c78..610413b4e9ca 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1352,10 +1352,10 @@ static void cmos_check_acpi_rtc_status(struct device *dev,
 
 static int cmos_pnp_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 {
-	cmos_wake_setup(&pnp->dev);
+	int irq, ret;
 
 	if (pnp_port_start(pnp, 0) == 0x70 && !pnp_irq_valid(pnp, 0)) {
-		unsigned int irq = 0;
+		irq = 0;
 #ifdef CONFIG_X86
 		/* Some machines contain a PNP entry for the RTC, but
 		 * don't define the IRQ. It should always be safe to
@@ -1364,13 +1364,17 @@ static int cmos_pnp_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 		if (nr_legacy_irqs())
 			irq = RTC_IRQ;
 #endif
-		return cmos_do_probe(&pnp->dev,
-				pnp_get_resource(pnp, IORESOURCE_IO, 0), irq);
 	} else {
-		return cmos_do_probe(&pnp->dev,
-				pnp_get_resource(pnp, IORESOURCE_IO, 0),
-				pnp_irq(pnp, 0));
+		irq = pnp_irq(pnp, 0);
 	}
+
+	ret = cmos_do_probe(&pnp->dev, pnp_get_resource(pnp, IORESOURCE_IO, 0), irq);
+	if (ret)
+		return ret;
+
+	cmos_wake_setup(&pnp->dev);
+
+	return 0;
 }
 
 static void cmos_pnp_remove(struct pnp_dev *pnp)
@@ -1454,10 +1458,9 @@ static inline void cmos_of_init(struct platform_device *pdev) {}
 static int __init cmos_platform_probe(struct platform_device *pdev)
 {
 	struct resource *resource;
-	int irq;
+	int irq, ret;
 
 	cmos_of_init(pdev);
-	cmos_wake_setup(&pdev->dev);
 
 	if (RTC_IOMAPPED)
 		resource = platform_get_resource(pdev, IORESOURCE_IO, 0);
@@ -1467,7 +1470,13 @@ static int __init cmos_platform_probe(struct platform_device *pdev)
 	if (irq < 0)
 		irq = -1;
 
-	return cmos_do_probe(&pdev->dev, resource, irq);
+	ret = cmos_do_probe(&pdev->dev, resource, irq);
+	if (ret)
+		return ret;
+
+	cmos_wake_setup(&pdev->dev);
+
+	return 0;
 }
 
 static int cmos_platform_remove(struct platform_device *pdev)
diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index a24331ba8a5f..5db9c737c022 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -132,7 +132,7 @@ ds1685_rtc_bin2bcd(struct ds1685_priv *rtc, u8 val, u8 bin_mask, u8 bcd_mask)
 }
 
 /**
- * s1685_rtc_check_mday - check validity of the day of month.
+ * ds1685_rtc_check_mday - check validity of the day of month.
  * @rtc: pointer to the ds1685 rtc structure.
  * @mday: day of month.
  *
diff --git a/drivers/rtc/rtc-gamecube.c b/drivers/rtc/rtc-gamecube.c
index c2717bb52b2b..c828bc8e05b9 100644
--- a/drivers/rtc/rtc-gamecube.c
+++ b/drivers/rtc/rtc-gamecube.c
@@ -265,18 +265,17 @@ static int gamecube_rtc_read_offset_from_sram(struct priv *d)
 	 * SRAM address as on previous consoles.
 	 */
 	ret = regmap_read(d->regmap, RTC_SRAM_BIAS, &d->rtc_bias);
-	if (ret) {
-		pr_err("failed to get the RTC bias\n");
-		iounmap(hw_srnprot);
-		return -1;
-	}
 
 	/* Reset SRAM access to how it was before, our job here is done. */
 	if (old != 0x7bf)
 		iowrite32be(old, hw_srnprot);
+
 	iounmap(hw_srnprot);
 
-	return 0;
+	if (ret)
+		pr_err("failed to get the RTC bias\n");
+
+	return ret;
 }
 
 static const struct regmap_range rtc_rd_ranges[] = {
diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index 79461ded1a48..ca677c4265e6 100644
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/regmap.h>
 
 /* ISL register offsets */
 #define ISL12022_REG_SC		0x00
@@ -42,83 +43,32 @@ static struct i2c_driver isl12022_driver;
 
 struct isl12022 {
 	struct rtc_device *rtc;
-
-	bool write_enabled;	/* true if write enable is set */
+	struct regmap *regmap;
 };
 
-
-static int isl12022_read_regs(struct i2c_client *client, uint8_t reg,
-			      uint8_t *data, size_t n)
-{
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= data
-		},		/* setup read ptr */
-		{
-			.addr	= client->addr,
-			.flags	= I2C_M_RD,
-			.len	= n,
-			.buf	= data
-		}
-	};
-
-	int ret;
-
-	data[0] = reg;
-	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (ret != ARRAY_SIZE(msgs)) {
-		dev_err(&client->dev, "%s: read error, ret=%d\n",
-			__func__, ret);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-
-static int isl12022_write_reg(struct i2c_client *client,
-			      uint8_t reg, uint8_t val)
-{
-	uint8_t data[2] = { reg, val };
-	int err;
-
-	err = i2c_master_send(client, data, sizeof(data));
-	if (err != sizeof(data)) {
-		dev_err(&client->dev,
-			"%s: err=%d addr=%02x, data=%02x\n",
-			__func__, err, data[0], data[1]);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-
 /*
  * In the routines that deal directly with the isl12022 hardware, we use
  * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch.
  */
 static int isl12022_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct i2c_client *client = to_i2c_client(dev);
+	struct isl12022 *isl12022 = dev_get_drvdata(dev);
+	struct regmap *regmap = isl12022->regmap;
 	uint8_t buf[ISL12022_REG_INT + 1];
 	int ret;
 
-	ret = isl12022_read_regs(client, ISL12022_REG_SC, buf, sizeof(buf));
+	ret = regmap_bulk_read(regmap, ISL12022_REG_SC, buf, sizeof(buf));
 	if (ret)
 		return ret;
 
 	if (buf[ISL12022_REG_SR] & (ISL12022_SR_LBAT85 | ISL12022_SR_LBAT75)) {
-		dev_warn(&client->dev,
+		dev_warn(dev,
 			 "voltage dropped below %u%%, "
 			 "date and time is not reliable.\n",
 			 buf[ISL12022_REG_SR] & ISL12022_SR_LBAT85 ? 85 : 75);
 	}
 
-	dev_dbg(&client->dev,
+	dev_dbg(dev,
 		"%s: raw data is sec=%02x, min=%02x, hr=%02x, "
 		"mday=%02x, mon=%02x, year=%02x, wday=%02x, "
 		"sr=%02x, int=%02x",
@@ -141,65 +91,25 @@ static int isl12022_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	tm->tm_mon = bcd2bin(buf[ISL12022_REG_MO] & 0x1F) - 1;
 	tm->tm_year = bcd2bin(buf[ISL12022_REG_YR]) + 100;
 
-	dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
-		"mday=%d, mon=%d, year=%d, wday=%d\n",
-		__func__,
-		tm->tm_sec, tm->tm_min, tm->tm_hour,
-		tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
+	dev_dbg(dev, "%s: %ptR\n", __func__, tm);
 
 	return 0;
 }
 
 static int isl12022_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct isl12022 *isl12022 = i2c_get_clientdata(client);
-	size_t i;
+	struct isl12022 *isl12022 = dev_get_drvdata(dev);
+	struct regmap *regmap = isl12022->regmap;
 	int ret;
 	uint8_t buf[ISL12022_REG_DW + 1];
 
-	dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, "
-		"mday=%d, mon=%d, year=%d, wday=%d\n",
-		__func__,
-		tm->tm_sec, tm->tm_min, tm->tm_hour,
-		tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-
-	if (!isl12022->write_enabled) {
-
-		ret = isl12022_read_regs(client, ISL12022_REG_INT, buf, 1);
-		if (ret)
-			return ret;
-
-		/* Check if WRTC (write rtc enable) is set factory default is
-		 * 0 (not set) */
-		if (!(buf[0] & ISL12022_INT_WRTC)) {
-			dev_info(&client->dev,
-				 "init write enable and 24 hour format\n");
-
-			/* Set the write enable bit. */
-			ret = isl12022_write_reg(client,
-						 ISL12022_REG_INT,
-						 buf[0] | ISL12022_INT_WRTC);
-			if (ret)
-				return ret;
-
-			/* Write to any RTC register to start RTC, we use the
-			 * HR register, setting the MIL bit to use the 24 hour
-			 * format. */
-			ret = isl12022_read_regs(client, ISL12022_REG_HR,
-						 buf, 1);
-			if (ret)
-				return ret;
-
-			ret = isl12022_write_reg(client,
-						 ISL12022_REG_HR,
-						 buf[0] | ISL12022_HR_MIL);
-			if (ret)
-				return ret;
-		}
-
-		isl12022->write_enabled = true;
-	}
+	dev_dbg(dev, "%s: %ptR\n", __func__, tm);
+
+	/* Ensure the write enable bit is set. */
+	ret = regmap_update_bits(regmap, ISL12022_REG_INT,
+				 ISL12022_INT_WRTC, ISL12022_INT_WRTC);
+	if (ret)
+		return ret;
 
 	/* hours, minutes and seconds */
 	buf[ISL12022_REG_SC] = bin2bcd(tm->tm_sec);
@@ -216,15 +126,8 @@ static int isl12022_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
 	buf[ISL12022_REG_DW] = tm->tm_wday & 0x07;
 
-	/* write register's data */
-	for (i = 0; i < ARRAY_SIZE(buf); i++) {
-		ret = isl12022_write_reg(client, ISL12022_REG_SC + i,
-					 buf[ISL12022_REG_SC + i]);
-		if (ret)
-			return -EIO;
-	}
-
-	return 0;
+	return regmap_bulk_write(isl12022->regmap, ISL12022_REG_SC,
+				 buf, sizeof(buf));
 }
 
 static const struct rtc_class_ops isl12022_rtc_ops = {
@@ -232,6 +135,12 @@ static const struct rtc_class_ops isl12022_rtc_ops = {
 	.set_time	= isl12022_rtc_set_time,
 };
 
+static const struct regmap_config regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.use_single_write = true,
+};
+
 static int isl12022_probe(struct i2c_client *client)
 {
 	struct isl12022 *isl12022;
@@ -243,13 +152,23 @@ static int isl12022_probe(struct i2c_client *client)
 				GFP_KERNEL);
 	if (!isl12022)
 		return -ENOMEM;
+	dev_set_drvdata(&client->dev, isl12022);
+
+	isl12022->regmap = devm_regmap_init_i2c(client, &regmap_config);
+	if (IS_ERR(isl12022->regmap)) {
+		dev_err(&client->dev, "regmap allocation failed\n");
+		return PTR_ERR(isl12022->regmap);
+	}
+
+	isl12022->rtc = devm_rtc_allocate_device(&client->dev);
+	if (IS_ERR(isl12022->rtc))
+		return PTR_ERR(isl12022->rtc);
 
-	i2c_set_clientdata(client, isl12022);
+	isl12022->rtc->ops = &isl12022_rtc_ops;
+	isl12022->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+	isl12022->rtc->range_max = RTC_TIMESTAMP_END_2099;
 
-	isl12022->rtc = devm_rtc_device_register(&client->dev,
-					isl12022_driver.driver.name,
-					&isl12022_rtc_ops, THIS_MODULE);
-	return PTR_ERR_OR_ZERO(isl12022->rtc);
+	return devm_rtc_register_device(isl12022->rtc);
 }
 
 #ifdef CONFIG_OF
diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index 6e51df72fd65..c383719292c7 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -257,11 +257,6 @@ static void jz4740_rtc_power_off(void)
 	kernel_halt();
 }
 
-static void jz4740_rtc_clk_disable(void *data)
-{
-	clk_disable_unprepare(data);
-}
-
 static const struct of_device_id jz4740_rtc_of_match[] = {
 	{ .compatible = "ingenic,jz4740-rtc", .data = (void *)ID_JZ4740 },
 	{ .compatible = "ingenic,jz4760-rtc", .data = (void *)ID_JZ4760 },
@@ -329,23 +324,9 @@ static int jz4740_rtc_probe(struct platform_device *pdev)
 	if (IS_ERR(rtc->base))
 		return PTR_ERR(rtc->base);
 
-	clk = devm_clk_get(dev, "rtc");
-	if (IS_ERR(clk)) {
-		dev_err(dev, "Failed to get RTC clock\n");
-		return PTR_ERR(clk);
-	}
-
-	ret = clk_prepare_enable(clk);
-	if (ret) {
-		dev_err(dev, "Failed to enable clock\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(dev, jz4740_rtc_clk_disable, clk);
-	if (ret) {
-		dev_err(dev, "Failed to register devm action\n");
-		return ret;
-	}
+	clk = devm_clk_get_enabled(dev, "rtc");
+	if (IS_ERR(clk))
+		return dev_err_probe(dev, PTR_ERR(clk), "Failed to get RTC clock\n");
 
 	spin_lock_init(&rtc->lock);
 
diff --git a/drivers/rtc/rtc-mpfs.c b/drivers/rtc/rtc-mpfs.c
index f14d1925e0c9..2a479d44f198 100644
--- a/drivers/rtc/rtc-mpfs.c
+++ b/drivers/rtc/rtc-mpfs.c
@@ -193,23 +193,6 @@ static int mpfs_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 	return 0;
 }
 
-static inline struct clk *mpfs_rtc_init_clk(struct device *dev)
-{
-	struct clk *clk;
-	int ret;
-
-	clk = devm_clk_get(dev, "rtc");
-	if (IS_ERR(clk))
-		return clk;
-
-	ret = clk_prepare_enable(clk);
-	if (ret)
-		return ERR_PTR(ret);
-
-	devm_add_action_or_reset(dev, (void (*) (void *))clk_disable_unprepare, clk);
-	return clk;
-}
-
 static irqreturn_t mpfs_rtc_wakeup_irq_handler(int irq, void *dev)
 {
 	struct mpfs_rtc_dev *rtcdev = dev;
@@ -233,7 +216,7 @@ static int mpfs_rtc_probe(struct platform_device *pdev)
 {
 	struct mpfs_rtc_dev *rtcdev;
 	struct clk *clk;
-	u32 prescaler;
+	unsigned long prescaler;
 	int wakeup_irq, ret;
 
 	rtcdev = devm_kzalloc(&pdev->dev, sizeof(struct mpfs_rtc_dev), GFP_KERNEL);
@@ -251,7 +234,7 @@ static int mpfs_rtc_probe(struct platform_device *pdev)
 	/* range is capped by alarm max, lower reg is 31:0 & upper is 10:0 */
 	rtcdev->rtc->range_max = GENMASK_ULL(42, 0);
 
-	clk = mpfs_rtc_init_clk(&pdev->dev);
+	clk = devm_clk_get_enabled(&pdev->dev, "rtc");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
@@ -275,14 +258,13 @@ static int mpfs_rtc_probe(struct platform_device *pdev)
 
 	/* prescaler hardware adds 1 to reg value */
 	prescaler = clk_get_rate(devm_clk_get(&pdev->dev, "rtcref")) - 1;
-
 	if (prescaler > MAX_PRESCALER_COUNT) {
-		dev_dbg(&pdev->dev, "invalid prescaler %d\n", prescaler);
+		dev_dbg(&pdev->dev, "invalid prescaler %lu\n", prescaler);
 		return -EINVAL;
 	}
 
 	writel(prescaler, rtcdev->base + PRESCALER_REG);
-	dev_info(&pdev->dev, "prescaler set to: 0x%X \r\n", prescaler);
+	dev_info(&pdev->dev, "prescaler set to: %lu\n", prescaler);
 
 	device_init_wakeup(&pdev->dev, true);
 	ret = dev_pm_set_wake_irq(&pdev->dev, wakeup_irq);
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 53d4e253e81f..762cf03345f1 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -291,14 +291,6 @@ static const struct rtc_class_ops mxc_rtc_ops = {
 	.alarm_irq_enable	= mxc_rtc_alarm_irq_enable,
 };
 
-static void mxc_rtc_action(void *p)
-{
-	struct rtc_plat_data *pdata = p;
-
-	clk_disable_unprepare(pdata->clk_ref);
-	clk_disable_unprepare(pdata->clk_ipg);
-}
-
 static int mxc_rtc_probe(struct platform_device *pdev)
 {
 	struct rtc_device *rtc;
@@ -341,33 +333,18 @@ static int mxc_rtc_probe(struct platform_device *pdev)
 		rtc->range_max = (1 << 16) * 86400ULL - 1;
 	}
 
-	pdata->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+	pdata->clk_ipg = devm_clk_get_enabled(&pdev->dev, "ipg");
 	if (IS_ERR(pdata->clk_ipg)) {
 		dev_err(&pdev->dev, "unable to get ipg clock!\n");
 		return PTR_ERR(pdata->clk_ipg);
 	}
 
-	ret = clk_prepare_enable(pdata->clk_ipg);
-	if (ret)
-		return ret;
-
-	pdata->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	pdata->clk_ref = devm_clk_get_enabled(&pdev->dev, "ref");
 	if (IS_ERR(pdata->clk_ref)) {
-		clk_disable_unprepare(pdata->clk_ipg);
 		dev_err(&pdev->dev, "unable to get ref clock!\n");
 		return PTR_ERR(pdata->clk_ref);
 	}
 
-	ret = clk_prepare_enable(pdata->clk_ref);
-	if (ret) {
-		clk_disable_unprepare(pdata->clk_ipg);
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(&pdev->dev, mxc_rtc_action, pdata);
-	if (ret)
-		return ret;
-
 	rate = clk_get_rate(pdata->clk_ref);
 
 	if (rate == 32768)
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index cdc623b3e365..dd170e3efd83 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -521,10 +521,9 @@ static int rv3028_param_get(struct device *dev, struct rtc_param *param)
 {
 	struct rv3028_data *rv3028 = dev_get_drvdata(dev);
 	int ret;
+	u32 value;
 
 	switch(param->param) {
-		u32 value;
-
 	case RTC_PARAM_BACKUP_SWITCH_MODE:
 		ret = regmap_read(rv3028->regmap, RV3028_BACKUP, &value);
 		if (ret < 0)
@@ -554,9 +553,9 @@ static int rv3028_param_get(struct device *dev, struct rtc_param *param)
 static int rv3028_param_set(struct device *dev, struct rtc_param *param)
 {
 	struct rv3028_data *rv3028 = dev_get_drvdata(dev);
+	u8 mode;
 
 	switch(param->param) {
-		u8 mode;
 	case RTC_PARAM_BACKUP_SWITCH_MODE:
 		switch (param->uvalue) {
 		case RTC_BSM_DISABLED:
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 40c0f7ed36e0..aae40d20d086 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -107,6 +107,8 @@ static void stmp3xxx_wdt_register(struct platform_device *rtc_pdev)
 		wdt_pdev->dev.parent = &rtc_pdev->dev;
 		wdt_pdev->dev.platform_data = &wdt_pdata;
 		rc = platform_device_add(wdt_pdev);
+		if (rc)
+			platform_device_put(wdt_pdev);
 	}
 
 	if (rc)
diff --git a/drivers/rtc/rtc-ti-k3.c b/drivers/rtc/rtc-ti-k3.c
index 7a0f181d3fef..ba23163cc042 100644
--- a/drivers/rtc/rtc-ti-k3.c
+++ b/drivers/rtc/rtc-ti-k3.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/sys_soc.h>
 #include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/rtc.h>
@@ -45,14 +46,6 @@
 #define K3RTC_MIN_OFFSET		(-277761)
 #define K3RTC_MAX_OFFSET		(277778)
 
-/**
- * struct ti_k3_rtc_soc_data - Private of compatible data for ti-k3-rtc
- * @unlock_irq_erratum:	Has erratum for unlock infinite IRQs (erratum i2327)
- */
-struct ti_k3_rtc_soc_data {
-	const bool unlock_irq_erratum;
-};
-
 static const struct regmap_config ti_k3_rtc_regmap_config = {
 	.name = "peripheral-registers",
 	.reg_bits = 32,
@@ -118,7 +111,6 @@ static const struct reg_field ti_rtc_reg_fields[] = {
  * @rtc_dev:		rtc device
  * @regmap:		rtc mmio regmap
  * @r_fields:		rtc register fields
- * @soc:		SoC compatible match data
  */
 struct ti_k3_rtc {
 	unsigned int irq;
@@ -127,7 +119,6 @@ struct ti_k3_rtc {
 	struct rtc_device *rtc_dev;
 	struct regmap *regmap;
 	struct regmap_field *r_fields[K3_RTC_MAX_FIELDS];
-	const struct ti_k3_rtc_soc_data *soc;
 };
 
 static int k3rtc_field_read(struct ti_k3_rtc *priv, enum ti_k3_rtc_fields f)
@@ -190,11 +181,22 @@ static int k3rtc_unlock_rtc(struct ti_k3_rtc *priv)
 
 	/* Skip fence since we are going to check the unlock bit as fence */
 	ret = regmap_field_read_poll_timeout(priv->r_fields[K3RTC_UNLOCK], ret,
-					     !ret, 2, priv->sync_timeout_us);
+					     ret, 2, priv->sync_timeout_us);
 
 	return ret;
 }
 
+/*
+ * This is the list of SoCs affected by TI's i2327 errata causing the RTC
+ * state-machine to break if not unlocked fast enough during boot. These
+ * SoCs must have the bootloader unlock this device very early in the
+ * boot-flow before we (Linux) can use this device.
+ */
+static const struct soc_device_attribute has_erratum_i2327[] = {
+	{ .family = "AM62X", .revision = "SR1.0" },
+	{ /* sentinel */ }
+};
+
 static int k3rtc_configure(struct device *dev)
 {
 	int ret;
@@ -208,7 +210,7 @@ static int k3rtc_configure(struct device *dev)
 	 *
 	 * In such occurrence, it is assumed that the RTC module is unusable
 	 */
-	if (priv->soc->unlock_irq_erratum) {
+	if (soc_device_match(has_erratum_i2327)) {
 		ret = k3rtc_check_unlocked(priv);
 		/* If there is an error OR if we are locked, return error */
 		if (ret) {
@@ -513,21 +515,12 @@ static struct nvmem_config ti_k3_rtc_nvmem_config = {
 
 static int k3rtc_get_32kclk(struct device *dev, struct ti_k3_rtc *priv)
 {
-	int ret;
 	struct clk *clk;
 
-	clk = devm_clk_get(dev, "osc32k");
+	clk = devm_clk_get_enabled(dev, "osc32k");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
-	ret = clk_prepare_enable(clk);
-	if (ret)
-		return ret;
-
-	ret = devm_add_action_or_reset(dev, (void (*)(void *))clk_disable_unprepare, clk);
-	if (ret)
-		return ret;
-
 	priv->rate_32k = clk_get_rate(clk);
 
 	/* Make sure we are exact 32k clock. Else, try to compensate delay */
@@ -542,24 +535,19 @@ static int k3rtc_get_32kclk(struct device *dev, struct ti_k3_rtc *priv)
 	 */
 	priv->sync_timeout_us = (u32)(DIV_ROUND_UP_ULL(1000000, priv->rate_32k) * 4);
 
-	return ret;
+	return 0;
 }
 
 static int k3rtc_get_vbusclk(struct device *dev, struct ti_k3_rtc *priv)
 {
-	int ret;
 	struct clk *clk;
 
 	/* Note: VBUS isn't a context clock, it is needed for hardware operation */
-	clk = devm_clk_get(dev, "vbus");
+	clk = devm_clk_get_enabled(dev, "vbus");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
-	ret = clk_prepare_enable(clk);
-	if (ret)
-		return ret;
-
-	return devm_add_action_or_reset(dev, (void (*)(void *))clk_disable_unprepare, clk);
+	return 0;
 }
 
 static int ti_k3_rtc_probe(struct platform_device *pdev)
@@ -602,8 +590,6 @@ static int ti_k3_rtc_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->rtc_dev))
 		return PTR_ERR(priv->rtc_dev);
 
-	priv->soc = of_device_get_match_data(dev);
-
 	priv->rtc_dev->ops = &ti_k3_rtc_ops;
 	priv->rtc_dev->range_max = (1ULL << 48) - 1;	/* 48Bit seconds */
 	ti_k3_rtc_nvmem_config.priv = priv;
@@ -635,12 +621,8 @@ static int ti_k3_rtc_probe(struct platform_device *pdev)
 	return devm_rtc_nvmem_register(priv->rtc_dev, &ti_k3_rtc_nvmem_config);
 }
 
-static const struct ti_k3_rtc_soc_data ti_k3_am62_data = {
-	.unlock_irq_erratum = true,
-};
-
 static const struct of_device_id ti_k3_rtc_of_match_table[] = {
-	{.compatible = "ti,am62-rtc", .data = &ti_k3_am62_data},
+	{.compatible = "ti,am62-rtc" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, ti_k3_rtc_of_match_table);