Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 70 insertions, 5 deletions

diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 476af93543f6..8ec2d6a1dbe1 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -40,6 +40,7 @@
 
 struct s5m_rtc_info {
 	struct device *dev;
+	struct i2c_client *i2c;
 	struct sec_pmic_dev *s5m87xx;
 	struct regmap *regmap;
 	struct rtc_device *rtc_dev;
@@ -49,6 +50,20 @@ struct s5m_rtc_info {
 	bool wtsr_smpl;
 };
 
+static const struct regmap_config s5m_rtc_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = SEC_RTC_REG_MAX,
+};
+
+static const struct regmap_config s2mps14_rtc_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = S2MPS_RTC_REG_MAX,
+};
+
 static void s5m8767_data_to_tm(u8 *data, struct rtc_time *tm,
 			       int rtc_24hr_mode)
 {
@@ -554,6 +569,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
 	struct sec_platform_data *pdata = s5m87xx->pdata;
 	struct s5m_rtc_info *info;
+	const struct regmap_config *regmap_cfg;
 	int ret;
 
 	if (!pdata) {
@@ -565,9 +581,37 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	if (!info)
 		return -ENOMEM;
 
+	switch (pdata->device_type) {
+	case S2MPS14X:
+		regmap_cfg = &s2mps14_rtc_regmap_config;
+		break;
+	case S5M8763X:
+		regmap_cfg = &s5m_rtc_regmap_config;
+		break;
+	case S5M8767X:
+		regmap_cfg = &s5m_rtc_regmap_config;
+		break;
+	default:
+		dev_err(&pdev->dev, "Device type is not supported by RTC driver\n");
+		return -ENODEV;
+	}
+
+	info->i2c = i2c_new_dummy(s5m87xx->i2c->adapter, RTC_I2C_ADDR);
+	if (!info->i2c) {
+		dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n");
+		return -ENODEV;
+	}
+
+	info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg);
+	if (IS_ERR(info->regmap)) {
+		ret = PTR_ERR(info->regmap);
+		dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n",
+				ret);
+		goto err;
+	}
+
 	info->dev = &pdev->dev;
 	info->s5m87xx = s5m87xx;
-	info->regmap = s5m87xx->regmap_rtc;
 	info->device_type = s5m87xx->device_type;
 	info->wtsr_smpl = s5m87xx->wtsr_smpl;
 
@@ -585,7 +629,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	default:
 		ret = -EINVAL;
 		dev_err(&pdev->dev, "Unsupported device type: %d\n", ret);
-		return ret;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, info);
@@ -602,15 +646,24 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
 						 &s5m_rtc_ops, THIS_MODULE);
 
-	if (IS_ERR(info->rtc_dev))
-		return PTR_ERR(info->rtc_dev);
+	if (IS_ERR(info->rtc_dev)) {
+		ret = PTR_ERR(info->rtc_dev);
+		goto err;
+	}
 
 	ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
 					s5m_rtc_alarm_irq, 0, "rtc-alarm0",
 					info);
-	if (ret < 0)
+	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
 			info->irq, ret);
+		goto err;
+	}
+
+	return 0;
+
+err:
+	i2c_unregister_device(info->i2c);
 
 	return ret;
 }
@@ -639,6 +692,17 @@ static void s5m_rtc_shutdown(struct platform_device *pdev)
 	s5m_rtc_enable_smpl(info, false);
 }
 
+static int s5m_rtc_remove(struct platform_device *pdev)
+{
+	struct s5m_rtc_info *info = platform_get_drvdata(pdev);
+
+	/* Perform also all shutdown steps when removing */
+	s5m_rtc_shutdown(pdev);
+	i2c_unregister_device(info->i2c);
+
+	return 0;
+}
+
 #ifdef CONFIG_PM_SLEEP
 static int s5m_rtc_resume(struct device *dev)
 {
@@ -676,6 +740,7 @@ static struct platform_driver s5m_rtc_driver = {
 		.pm	= &s5m_rtc_pm_ops,
 	},
 	.probe		= s5m_rtc_probe,
+	.remove		= s5m_rtc_remove,
 	.shutdown	= s5m_rtc_shutdown,
 	.id_table	= s5m_rtc_id,
 };