Merge tag 'omap-for-v3.9/pm-wfi-take2-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into late/omap

From Tony Lindgren:
omap pm wfi changes via Paul Walmsley <paul@pwsan.com>:

On OMAP2+ devices, standardize and clean up WFI entry and WFI blocking.

Basic test logs are available here:

   http://www.pwsan.com/omap/testlogs/wfi_devel_a_3.9/20130208085027/

Conflicts:
    arch/arm/mach-omap2/pm24xx.c

Note that this is based on earlier omap-for-v3.9/pm-signed because
of a non-trivial merge conflict. This branch also contains a fix
for c1d1cd59 ("ARM: OMAP2+: omap_device: remove obsolete pm_lats
and early_device code").

* tag 'omap-for-v3.9/pm-wfi-take2-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (25 commits)
  ARM: OMAP2+: fix some omap_device_build() calls that aren't compiled by default
  ARM: OMAP AM3517/05: hwmod data: block WFI when EMAC active
  ARM: OMAP2420: hwmod data/PM: use hwmod to block WFI when I2C active
  ARM: OMAP2+: hwmod: add support for blocking WFI when a device is active
  ARM: OMAP2xxx: PM: enter WFI via inline asm if CORE stays active
  ARM: OMAP2+: powerdomain: fix whitespace, improve flag comments
  ARM: OMAP2+: clockdomain: convert existing atomic usecounts into spinlock-protected shorts/ints
  ARM: OMAP2+: clockdomain: work on wkdep/sleepdep functions
  ARM: OMAP2xxx: CM: remove autodep handling
  ARM: OMAP2+: powerdomain/clockdomain: add a per-powerdomain spinlock
  ARM: OMAP2+: PM/powerdomain: move omap_set_pwrdm_state() to powerdomain code
  ARM: OMAP2: PM/powerdomain: drop unnecessary pwrdm_wait_transition()
  ARM: OMAP2xxx: PM: clean up some crufty powerstate programming code
  ARM: OMAP2+: clockdomain: add pwrdm_state_switch() call to clkdm_sleep()
  ARM: OMAP2+: powerdomain: fix powerdomain trace integration
  ARM: OMAP4: MPUSS PM: remove unnecessary shim functions for powerdomain control
  ARM: OMAP3xxx: CPUIdle: optimize __omap3_enter_idle()
  ARM: OMAP2420: hwmod data/PM: use hwmod to block WFI when I2C active
  ARM: OMAP2+: hwmod: add support for blocking WFI when a device is active
  ARM: OMAP3xxx: CPUIdle: simplify the PER next-state code
  ...

1 files changed, 4 insertions, 29 deletions

diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index db650690e9d0..6774a53a3874 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -273,9 +273,6 @@ int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
 
 static void omap2xxx_clkdm_allow_idle(struct clockdomain *clkdm)
 {
-	if (atomic_read(&clkdm->usecount) > 0)
-		_clkdm_add_autodeps(clkdm);
-
 	omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
 				       clkdm->clktrctrl_mask);
 }
@@ -284,9 +281,6 @@ static void omap2xxx_clkdm_deny_idle(struct clockdomain *clkdm)
 {
 	omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
 					clkdm->clktrctrl_mask);
-
-	if (atomic_read(&clkdm->usecount) > 0)
-		_clkdm_del_autodeps(clkdm);
 }
 
 static int omap2xxx_clkdm_clk_enable(struct clockdomain *clkdm)
@@ -298,18 +292,8 @@ static int omap2xxx_clkdm_clk_enable(struct clockdomain *clkdm)
 
 	hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
 					      clkdm->clktrctrl_mask);
-
-	if (hwsup) {
-		/* Disable HW transitions when we are changing deps */
-		omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
-						clkdm->clktrctrl_mask);
-		_clkdm_add_autodeps(clkdm);
-		omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
-					       clkdm->clktrctrl_mask);
-	} else {
-		if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
-			omap2xxx_clkdm_wakeup(clkdm);
-	}
+	if (!hwsup && clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
+		omap2xxx_clkdm_wakeup(clkdm);
 
 	return 0;
 }
@@ -324,17 +308,8 @@ static int omap2xxx_clkdm_clk_disable(struct clockdomain *clkdm)
 	hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
 					      clkdm->clktrctrl_mask);
 
-	if (hwsup) {
-		/* Disable HW transitions when we are changing deps */
-		omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
-						clkdm->clktrctrl_mask);
-		_clkdm_del_autodeps(clkdm);
-		omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
-					       clkdm->clktrctrl_mask);
-	} else {
-		if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)
-			omap2xxx_clkdm_sleep(clkdm);
-	}
+	if (!hwsup && clkdm->flags & CLKDM_CAN_FORCE_SLEEP)
+		omap2xxx_clkdm_sleep(clkdm);
 
 	return 0;
 }