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, 8 insertions, 71 deletions

diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
index 0933c599bf89..044c31d50e5b 100644
--- a/arch/arm/mach-omap2/omap_device.h
+++ b/arch/arm/mach-omap2/omap_device.h
@@ -13,20 +13,12 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
- * Eventually this type of functionality should either be
- * a) implemented via arch-specific pointers in platform_device
- * or
- * b) implemented as a proper omap_bus/omap_device in Linux, no more
- *    platform_device
+ * This type of functionality should be implemented as a proper
+ * omap_bus/omap_device in Linux.
  *
  * omap_device differs from omap_hwmod in that it includes external
  * (e.g., board- and system-level) integration details.  omap_hwmod
  * stores hardware data that is invariant for a given OMAP chip.
- *
- * To do:
- * - GPIO integration
- * - regulator integration
- *
  */
 #ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
 #define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
@@ -45,19 +37,14 @@ extern struct dev_pm_domain omap_device_pm_domain;
 #define OMAP_DEVICE_STATE_SHUTDOWN	3
 
 /* omap_device.flags values */
-#define OMAP_DEVICE_SUSPENDED BIT(0)
-#define OMAP_DEVICE_NO_IDLE_ON_SUSPEND BIT(1)
+#define OMAP_DEVICE_SUSPENDED		BIT(0)
+#define OMAP_DEVICE_NO_IDLE_ON_SUSPEND	BIT(1)
 
 /**
  * struct omap_device - omap_device wrapper for platform_devices
  * @pdev: platform_device
  * @hwmods: (one .. many per omap_device)
  * @hwmods_cnt: ARRAY_SIZE() of @hwmods
- * @pm_lats: ptr to an omap_device_pm_latency table
- * @pm_lats_cnt: ARRAY_SIZE() of what is passed to @pm_lats
- * @pm_lat_level: array index of the last odpl entry executed - -1 if never
- * @dev_wakeup_lat: dev wakeup latency in nanoseconds
- * @_dev_wakeup_lat_limit: dev wakeup latency limit in nsec - set by OMAP PM
  * @_state: one of OMAP_DEVICE_STATE_* (see above)
  * @flags: device flags
  * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
@@ -71,12 +58,7 @@ extern struct dev_pm_domain omap_device_pm_domain;
 struct omap_device {
 	struct platform_device		*pdev;
 	struct omap_hwmod		**hwmods;
-	struct omap_device_pm_latency	*pm_lats;
-	u32				dev_wakeup_lat;
-	u32				_dev_wakeup_lat_limit;
 	unsigned long			_driver_status;
-	u8				pm_lats_cnt;
-	s8				pm_lat_level;
 	u8				hwmods_cnt;
 	u8				_state;
 	u8                              flags;
@@ -86,36 +68,25 @@ struct omap_device {
 
 int omap_device_enable(struct platform_device *pdev);
 int omap_device_idle(struct platform_device *pdev);
-int omap_device_shutdown(struct platform_device *pdev);
 
 /* Core code interface */
 
 struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
-				      struct omap_hwmod *oh, void *pdata,
-				      int pdata_len,
-				      struct omap_device_pm_latency *pm_lats,
-				      int pm_lats_cnt, int is_early_device);
+					  struct omap_hwmod *oh, void *pdata,
+					  int pdata_len);
 
 struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
 					 struct omap_hwmod **oh, int oh_cnt,
-					 void *pdata, int pdata_len,
-					 struct omap_device_pm_latency *pm_lats,
-					 int pm_lats_cnt, int is_early_device);
+					 void *pdata, int pdata_len);
 
 struct omap_device *omap_device_alloc(struct platform_device *pdev,
-				      struct omap_hwmod **ohs, int oh_cnt,
-				      struct omap_device_pm_latency *pm_lats,
-				      int pm_lats_cnt);
+				      struct omap_hwmod **ohs, int oh_cnt);
 void omap_device_delete(struct omap_device *od);
 int omap_device_register(struct platform_device *pdev);
 
-void __iomem *omap_device_get_rt_va(struct omap_device *od);
 struct device *omap_device_get_by_hwmod_name(const char *oh_name);
 
 /* OMAP PM interface */
-int omap_device_align_pm_lat(struct platform_device *pdev,
-			     u32 new_wakeup_lat_limit);
-struct powerdomain *omap_device_get_pwrdm(struct omap_device *od);
 int omap_device_get_context_loss_count(struct platform_device *pdev);
 
 /* Other */
@@ -124,40 +95,6 @@ int omap_device_assert_hardreset(struct platform_device *pdev,
 				 const char *name);
 int omap_device_deassert_hardreset(struct platform_device *pdev,
 				 const char *name);
-int omap_device_idle_hwmods(struct omap_device *od);
-int omap_device_enable_hwmods(struct omap_device *od);
-
-int omap_device_disable_clocks(struct omap_device *od);
-int omap_device_enable_clocks(struct omap_device *od);
-
-/*
- * Entries should be kept in latency order ascending
- *
- * deact_lat is the maximum number of microseconds required to complete
- * deactivate_func() at the device's slowest OPP.
- *
- * act_lat is the maximum number of microseconds required to complete
- * activate_func() at the device's slowest OPP.
- *
- * This will result in some suboptimal power management decisions at fast
- * OPPs, but avoids having to recompute all device power management decisions
- * if the system shifts from a fast OPP to a slow OPP (in order to meet
- * latency requirements).
- *
- * XXX should deactivate_func/activate_func() take platform_device pointers
- * rather than omap_device pointers?
- */
-struct omap_device_pm_latency {
-	u32 deactivate_lat;
-	u32 deactivate_lat_worst;
-	int (*deactivate_func)(struct omap_device *od);
-	u32 activate_lat;
-	u32 activate_lat_worst;
-	int (*activate_func)(struct omap_device *od);
-	u32 flags;
-};
-
-#define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1)
 
 /* Get omap_device pointer from platform_device pointer */
 static inline struct omap_device *to_omap_device(struct platform_device *pdev)