rtc: simplify getting .drvdata

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Michal Simek <michal.simek@xilinx.com> (for zynqmp)
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-bq4802.c

@@ -48,8 +48,7 @@ static void bq4802_write_mem(struct bq4802 *p, int off, u8 val)
 
 static int bq4802_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct bq4802 *p = platform_get_drvdata(pdev);
+	struct bq4802 *p = dev_get_drvdata(dev);
 	unsigned long flags;
 	unsigned int century;
 	u8 val;
@@ -91,8 +90,7 @@ static int bq4802_read_time(struct device *dev, struct rtc_time *tm)
 
 static int bq4802_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct bq4802 *p = platform_get_drvdata(pdev);
+	struct bq4802 *p = dev_get_drvdata(dev);
 	u8 sec, min, hrs, day, mon, yrs, century, val;
 	unsigned long flags;
 	unsigned int year;

drivers/rtc/rtc-ds1216.c

@@ -76,8 +76,7 @@ static void ds1216_switch_ds_to_clock(u8 __iomem *ioaddr)
 
 static int ds1216_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1216_priv *priv = platform_get_drvdata(pdev);
+	struct ds1216_priv *priv = dev_get_drvdata(dev);
 	struct ds1216_regs regs;
 
 	ds1216_switch_ds_to_clock(priv->ioaddr);
@@ -104,8 +103,7 @@ static int ds1216_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 static int ds1216_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1216_priv *priv = platform_get_drvdata(pdev);
+	struct ds1216_priv *priv = dev_get_drvdata(dev);
 	struct ds1216_regs regs;
 
 	ds1216_switch_ds_to_clock(priv->ioaddr);

drivers/rtc/rtc-ds1511.c

@@ -314,8 +314,7 @@ ds1511_rtc_update_alarm(struct rtc_plat_data *pdata)
 static int
 ds1511_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -334,8 +333,7 @@ ds1511_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int
 ds1511_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -373,8 +371,7 @@ ds1511_interrupt(int irq, void *dev_id)
 
 static int ds1511_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;

drivers/rtc/rtc-ds1553.c

@@ -73,8 +73,7 @@ struct rtc_plat_data {
 
 static int ds1553_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	u8 century;
 
@@ -98,8 +97,7 @@ static int ds1553_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
 static int ds1553_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	unsigned int year, month, day, hour, minute, second, week;
 	unsigned int century;
@@ -155,8 +153,7 @@ static void ds1553_rtc_update_alarm(struct rtc_plat_data *pdata)
 
 static int ds1553_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -172,8 +169,7 @@ static int ds1553_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int ds1553_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -208,8 +204,7 @@ static irqreturn_t ds1553_rtc_interrupt(int irq, void *dev_id)
 
 static int ds1553_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;

drivers/rtc/rtc-ds1685.c

@@ -267,8 +267,7 @@ ds1685_rtc_get_ssn(struct ds1685_priv *rtc, u8 *ssn)
 static int
 ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ctrlb, century;
 	u8 seconds, minutes, hours, wday, mday, month, years;
 
@@ -317,8 +316,7 @@ ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int
 ds1685_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ctrlb, seconds, minutes, hours, wday, mday, month, years, century;
 
 	/* Fetch the time info from rtc_time. */
@@ -394,8 +392,7 @@ ds1685_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int
 ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 seconds, minutes, hours, mday, ctrlb, ctrlc;
 	int ret;
 
@@ -453,8 +450,7 @@ ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int
 ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ctrlb, seconds, minutes, hours, mday;
 	int ret;
 
@@ -1119,8 +1115,7 @@ static ssize_t
 ds1685_rtc_sysfs_battery_show(struct device *dev,
 			      struct device_attribute *attr, char *buf)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ctrld;
 
 	ctrld = rtc->read(rtc, RTC_CTRL_D);
@@ -1140,8 +1135,7 @@ static ssize_t
 ds1685_rtc_sysfs_auxbatt_show(struct device *dev,
 			      struct device_attribute *attr, char *buf)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ctrl4a;
 
 	ds1685_rtc_switch_to_bank1(rtc);
@@ -1163,8 +1157,7 @@ static ssize_t
 ds1685_rtc_sysfs_serial_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ds1685_priv *rtc = platform_get_drvdata(pdev);
+	struct ds1685_priv *rtc = dev_get_drvdata(dev);
 	u8 ssn[8];
 
 	ds1685_rtc_switch_to_bank1(rtc);

drivers/rtc/rtc-ds1742.c

@@ -58,8 +58,7 @@ struct rtc_plat_data {
 
 static int ds1742_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr_rtc;
 	u8 century;
 
@@ -83,8 +82,7 @@ static int ds1742_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
 static int ds1742_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr_rtc;
 	unsigned int year, month, day, hour, minute, second, week;
 	unsigned int century;

drivers/rtc/rtc-lpc32xx.c

@@ -294,11 +294,10 @@ static int lpc32xx_rtc_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int lpc32xx_rtc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev);
+	struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
 
 	if (rtc->irq >= 0) {
-		if (device_may_wakeup(&pdev->dev))
+		if (device_may_wakeup(dev))
 			enable_irq_wake(rtc->irq);
 		else
 			disable_irq_wake(rtc->irq);
@@ -309,10 +308,9 @@ static int lpc32xx_rtc_suspend(struct device *dev)
 
 static int lpc32xx_rtc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev);
+	struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
 
-	if (rtc->irq >= 0 && device_may_wakeup(&pdev->dev))
+	if (rtc->irq >= 0 && device_may_wakeup(dev))
 		disable_irq_wake(rtc->irq);
 
 	return 0;
@@ -321,8 +319,7 @@ static int lpc32xx_rtc_resume(struct device *dev)
 /* Unconditionally disable the alarm */
 static int lpc32xx_rtc_freeze(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev);
+	struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
 
 	spin_lock_irq(&rtc->lock);
 
@@ -337,8 +334,7 @@ static int lpc32xx_rtc_freeze(struct device *dev)
 
 static int lpc32xx_rtc_thaw(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev);
+	struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
 
 	if (rtc->alarm_enabled) {
 		spin_lock_irq(&rtc->lock);

drivers/rtc/rtc-m48t59.c

@@ -47,8 +47,7 @@ struct m48t59_private {
 static void
 m48t59_mem_writeb(struct device *dev, u32 ofs, u8 val)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 
 	writeb(val, m48t59->ioaddr+ofs);
 }
@@ -56,8 +55,7 @@ m48t59_mem_writeb(struct device *dev, u32 ofs, u8 val)
 static u8
 m48t59_mem_readb(struct device *dev, u32 ofs)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 
 	return readb(m48t59->ioaddr+ofs);
 }
@@ -67,9 +65,8 @@ m48t59_mem_readb(struct device *dev, u32 ofs)
  */
 static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	unsigned long flags;
 	u8 val;
 
@@ -110,9 +107,8 @@ static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	unsigned long flags;
 	u8 val = 0;
 	int year = tm->tm_year;
@@ -157,9 +153,8 @@ static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm)
  */
 static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	struct rtc_time *tm = &alrm->time;
 	unsigned long flags;
 	u8 val;
@@ -204,9 +199,8 @@ static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
  */
 static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	struct rtc_time *tm = &alrm->time;
 	u8 mday, hour, min, sec;
 	unsigned long flags;
@@ -265,9 +259,8 @@ static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
  */
 static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	unsigned long flags;
 
 	spin_lock_irqsave(&m48t59->lock, flags);
@@ -282,9 +275,8 @@ static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 
 static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	unsigned long flags;
 	u8 val;
 
@@ -303,9 +295,8 @@ static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq)
 static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id)
 {
 	struct device *dev = (struct device *)dev_id;
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
-	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
+	struct m48t59_plat_data *pdata = dev_get_platdata(dev);
+	struct m48t59_private *m48t59 = dev_get_drvdata(dev);
 	u8 event;
 
 	spin_lock(&m48t59->lock);

drivers/rtc/rtc-mv.c

@@ -176,8 +176,7 @@ static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
 
 static int mv_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
 	if (pdata->irq < 0)

drivers/rtc/rtc-mxc.c

@@ -109,8 +109,7 @@ static inline int is_imx1_rtc(struct rtc_plat_data *data)
  */
 static time64_t get_alarm_or_time(struct device *dev, int time_alarm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	u32 day = 0, hr = 0, min = 0, sec = 0, hr_min = 0;
 
@@ -139,8 +138,7 @@ static time64_t get_alarm_or_time(struct device *dev, int time_alarm)
 static void set_alarm_or_time(struct device *dev, int time_alarm, time64_t time)
 {
 	u32 tod, day, hr, min, sec, temp;
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
 	day = div_s64_rem(time, 86400, &tod);
@@ -176,8 +174,7 @@ static void set_alarm_or_time(struct device *dev, int time_alarm, time64_t time)
 static void rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
 {
 	time64_t time;
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
 	time = rtc_tm_to_time64(alrm);
@@ -190,8 +187,7 @@ static void rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
 static void mxc_rtc_irq_enable(struct device *dev, unsigned int bit,
 				unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	u32 reg;
 
@@ -266,8 +262,7 @@ static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
  */
 static int mxc_rtc_set_mmss(struct device *dev, time64_t time)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	/*
 	 * TTC_DAYR register is 9-bit in MX1 SoC, save time and day of year only
@@ -295,8 +290,7 @@ static int mxc_rtc_set_mmss(struct device *dev, time64_t time)
  */
 static int mxc_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
 	rtc_time64_to_tm(get_alarm_or_time(dev, MXC_RTC_ALARM), &alrm->time);
@@ -310,8 +304,7 @@ static int mxc_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
  */
 static int mxc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	rtc_update_alarm(dev, &alrm->time);
 

drivers/rtc/rtc-pcap.c

@@ -43,8 +43,7 @@ static irqreturn_t pcap_rtc_irq(int irq, void *_pcap_rtc)
 
 static int pcap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pcap_rtc *pcap_rtc = platform_get_drvdata(pdev);
+	struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
 	struct rtc_time *tm = &alrm->time;
 	unsigned long secs;
 	u32 tod;	/* time of day, seconds since midnight */
@@ -63,8 +62,7 @@ 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 platform_device *pdev = to_platform_device(dev);
-	struct pcap_rtc *pcap_rtc = platform_get_drvdata(pdev);
+	struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
 	struct rtc_time *tm = &alrm->time;
 	unsigned long secs;
 	u32 tod, days;
@@ -82,8 +80,7 @@ static int pcap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int pcap_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pcap_rtc *pcap_rtc = platform_get_drvdata(pdev);
+	struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
 	unsigned long secs;
 	u32 tod, days;
 
@@ -100,8 +97,7 @@ static int pcap_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 static int pcap_rtc_set_mmss(struct device *dev, unsigned long secs)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pcap_rtc *pcap_rtc = platform_get_drvdata(pdev);
+	struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
 	u32 tod, days;
 
 	tod = secs % SEC_PER_DAY;
@@ -115,8 +111,7 @@ static int pcap_rtc_set_mmss(struct device *dev, unsigned long secs)
 
 static int pcap_rtc_irq_enable(struct device *dev, int pirq, unsigned int en)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pcap_rtc *pcap_rtc = platform_get_drvdata(pdev);
+	struct pcap_rtc *pcap_rtc = dev_get_drvdata(dev);
 
 	if (en)
 		enable_irq(pcap_to_irq(pcap_rtc->pcap, pirq));

drivers/rtc/rtc-sh.c

@@ -359,8 +359,7 @@ static int sh_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 
 static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
+	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	unsigned int sec128, sec2, yr, yr100, cf_bit;
 
 	do {
@@ -419,8 +418,7 @@ static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 static int sh_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
+	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	unsigned int tmp;
 	int year;
 
@@ -475,8 +473,7 @@ static inline int sh_rtc_read_alarm_value(struct sh_rtc *rtc, int reg_off)
 
 static int sh_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
+	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	struct rtc_time *tm = &wkalrm->time;
 
 	spin_lock_irq(&rtc->lock);
@@ -509,8 +506,7 @@ static inline void sh_rtc_write_alarm_value(struct sh_rtc *rtc,
 
 static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
+	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	unsigned int rcr1;
 	struct rtc_time *tm = &wkalrm->time;
 	int mon;
@@ -723,8 +719,7 @@ static int __exit sh_rtc_remove(struct platform_device *pdev)
 
 static void sh_rtc_set_irq_wake(struct device *dev, int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
+	struct sh_rtc *rtc = dev_get_drvdata(dev);
 
 	irq_set_irq_wake(rtc->periodic_irq, enabled);
 

drivers/rtc/rtc-stk17ta8.c

@@ -74,8 +74,7 @@ struct rtc_plat_data {
 
 static int stk17ta8_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	u8 flags;
 
@@ -97,8 +96,7 @@ static int stk17ta8_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
 static int stk17ta8_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 	void __iomem *ioaddr = pdata->ioaddr;
 	unsigned int year, month, day, hour, minute, second, week;
 	unsigned int century;
@@ -163,8 +161,7 @@ static void stk17ta8_rtc_update_alarm(struct rtc_plat_data *pdata)
 
 static int stk17ta8_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -180,8 +177,7 @@ static int stk17ta8_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int stk17ta8_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;
@@ -217,8 +213,7 @@ static irqreturn_t stk17ta8_rtc_interrupt(int irq, void *dev_id)
 static int stk17ta8_rtc_alarm_irq_enable(struct device *dev,
 	unsigned int enabled)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
 
 	if (pdata->irq <= 0)
 		return -EINVAL;

drivers/rtc/rtc-test.c

@@ -84,8 +84,7 @@ static ssize_t test_irq_store(struct device *dev,
 				const char *buf, size_t count)
 {
 	int retval;
-	struct platform_device *plat_dev = to_platform_device(dev);
-	struct rtc_device *rtc = platform_get_drvdata(plat_dev);
+	struct rtc_device *rtc = dev_get_drvdata(dev);
 
 	retval = count;
 	if (strncmp(buf, "tick", 4) == 0 && rtc->pie_enabled)

drivers/rtc/rtc-zynqmp.c

@@ -278,10 +278,9 @@ static int xlnx_rtc_remove(struct platform_device *pdev)
 
 static int __maybe_unused xlnx_rtc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xlnx_rtc_dev *xrtcdev = platform_get_drvdata(pdev);
+	struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev);
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(dev))
 		enable_irq_wake(xrtcdev->alarm_irq);
 	else
 		xlnx_rtc_alarm_irq_enable(dev, 0);
@@ -291,10 +290,9 @@ static int __maybe_unused xlnx_rtc_suspend(struct device *dev)
 
 static int __maybe_unused xlnx_rtc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xlnx_rtc_dev *xrtcdev = platform_get_drvdata(pdev);
+	struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev);
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(dev))
 		disable_irq_wake(xrtcdev->alarm_irq);
 	else
 		xlnx_rtc_alarm_irq_enable(dev, 1);