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, 15 insertions, 0 deletions

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index e87140bef667..db11b4f40611 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -98,7 +98,11 @@
 #define TWL4030_BASEADD_BACKUP		0x0014
 #define TWL4030_BASEADD_INT		0x002E
 #define TWL4030_BASEADD_PM_MASTER	0x0036
+
 #define TWL4030_BASEADD_PM_RECEIVER	0x005B
+#define TWL4030_DCDC_GLOBAL_CFG		0x06
+#define SMARTREFLEX_ENABLE		BIT(3)
+
 #define TWL4030_BASEADD_RTC		0x001C
 #define TWL4030_BASEADD_SECURED_REG	0x0000
 
@@ -1204,6 +1208,11 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
 	 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
 	 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
+	 *
+	 * Also, always enable SmartReflex bit as that's needed for omaps to
+	 * to do anything over I2C4 for voltage scaling even if SmartReflex
+	 * is disabled. Without the SmartReflex bit omap sys_clkreq idle
+	 * signal will never trigger for retention idle.
 	 */
 	if (twl_class_is_4030()) {
 		u8 temp;
@@ -1212,6 +1221,12 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
 			I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
 		twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
+
+		twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &temp,
+				TWL4030_DCDC_GLOBAL_CFG);
+		temp |= SMARTREFLEX_ENABLE;
+		twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, temp,
+				 TWL4030_DCDC_GLOBAL_CFG);
 	}
 
 	if (node) {