Merge tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "It is now possible to add custom sysfs attributes while avoiding a
  possible race condition. Unused code has been removed resulting in a
  nice reduction of the code base. And more drivers have been switched
  to SPDX by their maintainers.

 Summary:

  Subsystem:
   - new helpers to add custom sysfs attributes
   - struct rtc_task removal along with rtc_irq_[un]register()
   - rtc_irq_set_state and rtc_irq_set_freq are not exported anymore

  Drivers:
   - armada38x: reset after rtc power loss
   - ds1307: now supports m41t11
   - isl1208: now supports isl1219 and tamper detection
   - pcf2127: internal SRAM support"

* tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
  rtc: ds1307: simplify hwmon config
  rtc: s5m: Add SPDX license identifier
  rtc: maxim: Add SPDX license identifiers
  rtc: isl1219: add device tree documentation
  rtc: isl1208: set ev-evienb bit from device tree
  rtc: isl1208: Add "evdet" interrupt source for isl1219
  rtc: isl1208: add support for isl1219 with tamper detection
  rtc: sysfs: facilitate attribute add to rtc device
  rtc: remove struct rtc_task
  char: rtc: remove task handling
  rtc: pcf85063: preserve control register value between stop and start
  rtc: sh: remove unused variable rtc_dev
  rtc: unexport rtc_irq_set_*
  rtc: simplify rtc_irq_set_state/rtc_irq_set_freq
  rtc: remove irq_task and irq_task_lock
  rtc: remove rtc_irq_register/rtc_irq_unregister
  rtc: sh: remove dead code
  rtc: sa1100: don't set PIE frequency
  rtc: ds1307: support m41t11 variant
  rtc: ds1307: fix data pointer to m41t0
  ...

1 files changed, 1 insertions, 89 deletions

diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 776b70a14e03..51ba414798a8 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -143,8 +143,6 @@ static int __sh_rtc_alarm(struct sh_rtc *rtc)
 
 static int __sh_rtc_periodic(struct sh_rtc *rtc)
 {
-	struct rtc_device *rtc_dev = rtc->rtc_dev;
-	struct rtc_task *irq_task;
 	unsigned int tmp, pending;
 
 	tmp = readb(rtc->regbase + RCR2);
@@ -161,14 +159,7 @@ static int __sh_rtc_periodic(struct sh_rtc *rtc)
 	else {
 		if (rtc->periodic_freq & PF_HP)
 			rtc->periodic_freq |= PF_COUNT;
-		if (rtc->periodic_freq & PF_KOU) {
-			spin_lock(&rtc_dev->irq_task_lock);
-			irq_task = rtc_dev->irq_task;
-			if (irq_task)
-				irq_task->func(irq_task->private_data);
-			spin_unlock(&rtc_dev->irq_task_lock);
-		} else
-			rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
+		rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
 	}
 
 	return pending;
@@ -224,81 +215,6 @@ static irqreturn_t sh_rtc_shared(int irq, void *dev_id)
 	return IRQ_RETVAL(ret);
 }
 
-static int sh_rtc_irq_set_state(struct device *dev, int enable)
-{
-	struct sh_rtc *rtc = dev_get_drvdata(dev);
-	unsigned int tmp;
-
-	spin_lock_irq(&rtc->lock);
-
-	tmp = readb(rtc->regbase + RCR2);
-
-	if (enable) {
-		rtc->periodic_freq |= PF_KOU;
-		tmp &= ~RCR2_PEF;	/* Clear PES bit */
-		tmp |= (rtc->periodic_freq & ~PF_HP);	/* Set PES2-0 */
-	} else {
-		rtc->periodic_freq &= ~PF_KOU;
-		tmp &= ~(RCR2_PESMASK | RCR2_PEF);
-	}
-
-	writeb(tmp, rtc->regbase + RCR2);
-
-	spin_unlock_irq(&rtc->lock);
-
-	return 0;
-}
-
-static int sh_rtc_irq_set_freq(struct device *dev, int freq)
-{
-	struct sh_rtc *rtc = dev_get_drvdata(dev);
-	int tmp, ret = 0;
-
-	spin_lock_irq(&rtc->lock);
-	tmp = rtc->periodic_freq & PF_MASK;
-
-	switch (freq) {
-	case 0:
-		rtc->periodic_freq = 0x00;
-		break;
-	case 1:
-		rtc->periodic_freq = 0x60;
-		break;
-	case 2:
-		rtc->periodic_freq = 0x50;
-		break;
-	case 4:
-		rtc->periodic_freq = 0x40;
-		break;
-	case 8:
-		rtc->periodic_freq = 0x30 | PF_HP;
-		break;
-	case 16:
-		rtc->periodic_freq = 0x30;
-		break;
-	case 32:
-		rtc->periodic_freq = 0x20 | PF_HP;
-		break;
-	case 64:
-		rtc->periodic_freq = 0x20;
-		break;
-	case 128:
-		rtc->periodic_freq = 0x10 | PF_HP;
-		break;
-	case 256:
-		rtc->periodic_freq = 0x10;
-		break;
-	default:
-		ret = -ENOTSUPP;
-	}
-
-	if (ret == 0)
-		rtc->periodic_freq |= tmp;
-
-	spin_unlock_irq(&rtc->lock);
-	return ret;
-}
-
 static inline void sh_rtc_setaie(struct device *dev, unsigned int enable)
 {
 	struct sh_rtc *rtc = dev_get_drvdata(dev);
@@ -675,8 +591,6 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, rtc);
 
 	/* everything disabled by default */
-	sh_rtc_irq_set_freq(&pdev->dev, 0);
-	sh_rtc_irq_set_state(&pdev->dev, 0);
 	sh_rtc_setaie(&pdev->dev, 0);
 	sh_rtc_setcie(&pdev->dev, 0);
 
@@ -708,8 +622,6 @@ static int __exit sh_rtc_remove(struct platform_device *pdev)
 {
 	struct sh_rtc *rtc = platform_get_drvdata(pdev);
 
-	sh_rtc_irq_set_state(&pdev->dev, 0);
-
 	sh_rtc_setaie(&pdev->dev, 0);
 	sh_rtc_setcie(&pdev->dev, 0);