linux/drivers/amba, branch v3.3

Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2012-01-08T21:10:57Z

* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit

PM / Sleep: Remove forward-only callbacks from AMBA bus type

2011-12-21T21:03:26Z

The forward-only PM callbacks provided by the AMBA bus type are not necessary any more, because the PM core executes driver callbacks when the corresponding subsystem callbacks are not present, so drop them. Signed-off-by: Rafael J. Wysocki

ARM: amba: Auto-generate AMBA driver module aliases during modpost

2011-11-22T10:58:30Z

This patch adds the necessary support in file2alias.c to define suitable aliases based on the amba_id table in AMBA driver modules. This should be sufficient to allow such modules to be auto-loaded via udev. The AMBA bus driver's uevent hotplug code is also modified to pass an approriate MODALIAS string in the event. For simplicity, the AMBA ID is treated an an opaque 32-bit numeber. Module alises use patterns as appropriate to describe the value- mask pairs described in the driver's amba_id list. The proposed alias format is (extended regex): ^amba:d(HEX){8}$ Where HEX is a single upper-case HEX digit or a pattern (? or [] expression) matching a single upper-case HEX digit, as expected by udev. "d" is short for "device", following existing alias naming conventions for other device types. This adds some flexibility for unambiguously extending the alias format in the future by adding additional leading and trailing fields, if this turns out to be necessary. Signed-off-by: Dave Martin Acked-by: Pawel Moll

clk: amba bus: convert to clk_prepare()/clk_unprepare()

2011-09-27T08:25:51Z

Signed-off-by: Russell King

PM: add runtime PM support to core Primecell driver

2011-09-22T15:21:42Z

Add runtime PM support to the core Primecell driver, following the PCI model of how this is done. Rather than having every driver fiddle about with enabling runtime PM, that's dealt with in the core and instead, drivers just do a put() in their probe and a balancing get() in their remove function to activate runtime PM for the device. As we're dealing with enabling runtime PM in the core, fix up spi-pl022 as it must not enable and disable runtime PM itself anymore. Tested-by: Linus Walleij Acked-by: Rafael J. Wysocki Signed-off-by: Russell King

ARM: 6829/1: amba: make hardcoded periphid override hardware

2011-05-26T09:33:34Z

This makes a hardcoded periphid from the platform override any magic number found in the hardware. This shall henceforth be used when the information found in the hardware is either missing, i.e. not encoding the CID with the magic cookie 0xb105f00d, or incorrect such that the revision number should have been bumped in hardware, but the silicon designer has failed to do so. Signed-off-by: Linus Walleij Signed-off-by: Russell King

PM / Hibernate: Introduce CONFIG_HIBERNATE_CALLBACKS

2011-04-11T20:54:42Z

Xen save/restore is going to use hibernate device callbacks for quiescing devices and putting them back to normal operations and it would need to select CONFIG_HIBERNATION for this purpose. However, that also would cause the hibernate interfaces for user space to be enabled, which might confuse user space, because the Xen kernels don't support hibernation. Moreover, it would be wasteful, as it would make the Xen kernels include a substantial amount of code that they would never use. To address this issue introduce new power management Kconfig option CONFIG_HIBERNATE_CALLBACKS, such that it will only select the code that is necessary for the hibernate device callbacks to work and make CONFIG_HIBERNATION select it. Then, Xen save/restore will be able to select CONFIG_HIBERNATE_CALLBACKS without dragging the entire hibernate code along with it. Signed-off-by: Rafael J. Wysocki Tested-by: Shriram Rajagopalan

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi

ARM: 6758/1: amba: support pm ops

2011-02-23T16:26:46Z

Support pm_ops in the AMBA bus, required to allow drivers to use runtime pm. The implementation of AMBA bus pm ops is based on the platform bus implementation. Acked-by: Rafael J. Wysocki Acked-by: Linus Walleij Signed-off-by: Rabin Vincent Signed-off-by: Russell King

ARM: amba: make internal ID table handling const

2011-02-23T16:24:19Z

As all probe() functions now take a const pointer, we can make the bus level code deal with const pointers too. Signed-off-by: Russell King