Merge tag 'soc-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next

Pull part one of ARM SoC updates from Olof Johansson:
 "A quite large set of SoC updates this cycle.  In no particular order:

   - Multi-cluster power management for Samsung Exynos, adding support
     for big.LITTLE CPU switching on EXYNOS5

   - SMP support for Marvell Armada 375 and 38x

   - SMP rework on Allwinner A31

   - Xilinx Zynq support for SOC_BUS, big endian

   - Marvell orion5x platform cleanup, modernizing the implementation
     and moving to DT.

   - _Finally_ moving Samsung Exynos over to support MULTIPLATFORM, so
     that their platform can be enabled in the same kernel binary as
     most of the other v7 platforms in the tree.  \o/

     The work isn't quite complete, there's some driver fixes still
     needed, but the basics now work.

  New SoC support added:

   - Freescale i.MX6SX

   - LSI Axxia AXM55xx SoCs

   - Samsung EXYNOS 3250, 5260, 5410, 5420 and 5800

   - STi STIH407

  plus a large set of various smaller updates for different platforms.
  I'm probably missing some important one here"

* tag 'soc-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (281 commits)
  ARM: exynos: don't run exynos4 l2x0 setup on other platforms
  ARM: exynos: Fix "allmodconfig" build errors in mcpm and hotplug
  ARM: EXYNOS: mcpm rename the power_down_finish
  ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC
  ARM: EXYNOS: Enable multi-platform build support
  ARM: EXYNOS: Consolidate Kconfig entries
  ARM: EXYNOS: Add support for EXYNOS5410 SoC
  ARM: EXYNOS: Support secondary CPU boot of Exynos3250
  ARM: EXYNOS: Add Exynos3250 SoC ID
  ARM: EXYNOS: Add 5800 SoC support
  ARM: EXYNOS: initial board support for exynos5260 SoC
  clk: exynos5410: register clocks using common clock framework
  ARM: debug: qcom: add UART addresses to Kconfig help for APQ8084
  ARM: sunxi: allow building without reset controller
  Documentation: devicetree: arm: sort enable-method entries
  ARM: rockchip: convert smp bringup to CPU_METHOD_OF_DECLARE
  clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks
  ARM: dts: axxia: Add reset controller
  power: reset: Add Axxia system reset driver
  ARM: axxia: Adding defconfig for AXM55xx
  ...

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) {