Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "New or improved SoC support:

   - add support for Atmel's SAMA5D2 SoC
   - add support for Freescale i.MX6UL
   - improved support for TI's DM814x platform
   - misc fixes and improvements for RockChip platforms
   - Marvell MVEBU suspend/resume support

  A few driver changes that ideally would belong in the drivers branch
  are also here (acked by appropriate maintainers):

   - power key input driver for Freescale platforms (svns)
   - RTC driver updates for Freescale platforms (svns/mxc)
   - clk fixes for TI DM814/816X

  + a bunch of other changes for various platforms"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: rockchip: pm: Fix PTR_ERR() argument
  ARM: imx: mach-imx6ul: Fix allmodconfig build
  clk: ti: fix for definition movement
  ARM: uniphier: drop v7_invalidate_l1 call at secondary entry
  memory: kill off set_irq_flags usage
  rtc: snvs: select option REGMAP_MMIO
  ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE
  ARM: BCM: Enable ARM erratum 798181 for BRCMSTB
  ARM: OMAP2+: Fix power domain operations regression caused by 81xx
  ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend
  ARM: rockchip: set correct stabilization thresholds in suspend
  ARM: rockchip: rename osc_switch_to_32k variable
  ARM: imx6ul: add fec MAC refrence clock and phy fixup init
  ARM: imx6ul: add fec bits to GPR syscon definition
  rtc: mxc: add support of device tree
  dt-binding: document the binding for mxc rtc
  rtc: mxc: use a second rtc clock
  ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback
  soc: mediatek: Fix SCPSYS compilation
  ARM: at91/soc: add basic support for new sama5d2 SoC
  ...

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 6ef9e6341d96..cc8a987149e2 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -300,7 +300,20 @@ static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
 
         /* Module might have lost context, always update cache and register */
         oh->_sysc_cache = v;
+
+        /*
+         * Some IP blocks (such as RTC) require unlocking of IP before
+         * accessing its registers. If a function pointer is present
+         * to unlock, then call it before accessing sysconfig and
+         * call lock after writing sysconfig.
+         */
+        if (oh->class->unlock)
+                oh->class->unlock(oh);
+
         omap_hwmod_write(v, oh, oh->class->sysc->sysc_offs);
+
+        if (oh->class->lock)
+                oh->class->lock(oh);
 }
 
 /**
@@ -3887,7 +3900,8 @@ void __init omap_hwmod_init(void)
                 soc_ops.init_clkdm = _init_clkdm;
                 soc_ops.update_context_lost = _omap4_update_context_lost;
                 soc_ops.get_context_lost = _omap4_get_context_lost;
-        } else if (cpu_is_ti816x() || soc_is_am33xx() || soc_is_am43xx()) {
+        } else if (cpu_is_ti814x() || cpu_is_ti816x() || soc_is_am33xx() ||
+                   soc_is_am43xx()) {
                 soc_ops.enable_module = _omap4_enable_module;
                 soc_ops.disable_module = _omap4_disable_module;
                 soc_ops.wait_target_ready = _omap4_wait_target_ready;