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authorTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
committerTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
commit9cd68fa707cf6372f33eb51a5719dd7626efe5f6 (patch)
tree66cde27bd288e011a6e4cff87d342666399a1266 /arch/arm/mach-omap2/clockdomain.h
parent5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff)
parent76a5d9bfc42d60e9a672e0cae776157a60970f4e (diff)
Merge tag 'omap-devel-b-c-2-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-late
OMAP patches intended for the 3.7 merge window: - Runtime PM conversions for the GPMC and RNG IP blocks - Preparation patches for the OMAP common clock framework conversion - clkdev alias additions required by other drivers - Performance Monitoring Unit (PMU) support for OMAP2, 3, and non-4430 OMAP4 - OMAP hwmod code and data improvements - Preparation patches for the IOMMU runtime PM conversion - Preparation patches for OMAP4 full-chip retention support Based on a merge of v3.6-rc6, the omap-cleanup-b-for-3.7 tag (7852ec0536ca39cefffc6301dc77f8ae55592926),the cleanup-fixes-for-v3.7 tag (de6ca33a96a6bf61fcb91d3d399703e19ead9d1e), and the omap-devel-am33xx-for-v3.7 tag (11964f53eb4d9ce59a058be9999d9cfcb1ced878), due to dependencies. These patches have been tested for meaningful warnings from checkpatch, sparse, smatch, and cppcheck. Basic build, boot[1], and PM test logs are available here: http://www.pwsan.com/omap/testlogs/hwmod_prcm_clock_a_3.7/20120923173830/ ... 1. Note that the N800 boot fails due to a known issue present in the base commit: http://www.spinics.net/lists/arm-kernel/msg196034.html
Diffstat (limited to 'arch/arm/mach-omap2/clockdomain.h')
-rw-r--r--arch/arm/mach-omap2/clockdomain.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 5601dc13785e..629576be7444 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -1,9 +1,7 @@
/*
- * arch/arm/plat-omap/include/mach/clockdomain.h
- *
* OMAP2/3 clockdomain framework functions
*
- * Copyright (C) 2008 Texas Instruments, Inc.
+ * Copyright (C) 2008, 2012 Texas Instruments, Inc.
* Copyright (C) 2008-2011 Nokia Corporation
*
* Paul Walmsley
@@ -34,6 +32,20 @@
* CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
* active whenever the MPU is active. True for interconnects and
* the WKUP clockdomains.
+ * CLKDM_MISSING_IDLE_REPORTING: The idle status of the IP blocks and
+ * clocks inside this clockdomain are not taken into account by
+ * the PRCM when determining whether the clockdomain is idle.
+ * Without this flag, if the clockdomain is set to
+ * hardware-supervised idle mode, the PRCM may transition the
+ * enclosing powerdomain to a low power state, even when devices
+ * inside the clockdomain and powerdomain are in use. (An example
+ * of such a clockdomain is the EMU clockdomain on OMAP3/4.) If
+ * this flag is set, and the clockdomain does not support the
+ * force-sleep mode, then the HW_AUTO mode will be used to put the
+ * clockdomain to sleep. Similarly, if the clockdomain supports
+ * the force-wakeup mode, then it will be used whenever a clock or
+ * IP block inside the clockdomain is active, rather than the
+ * HW_AUTO mode.
*/
#define CLKDM_CAN_FORCE_SLEEP (1 << 0)
#define CLKDM_CAN_FORCE_WAKEUP (1 << 1)
@@ -41,6 +53,7 @@
#define CLKDM_CAN_DISABLE_AUTO (1 << 3)
#define CLKDM_NO_AUTODEPS (1 << 4)
#define CLKDM_ACTIVE_WITH_MPU (1 << 5)
+#define CLKDM_MISSING_IDLE_REPORTING (1 << 6)
#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)
@@ -187,6 +200,7 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm);
void clkdm_allow_idle(struct clockdomain *clkdm);
void clkdm_deny_idle(struct clockdomain *clkdm);
bool clkdm_in_hwsup(struct clockdomain *clkdm);
+bool clkdm_missing_idle_reporting(struct clockdomain *clkdm);
int clkdm_wakeup(struct clockdomain *clkdm);
int clkdm_sleep(struct clockdomain *clkdm);