linux/drivers/amba, branch v3.2.41

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

ARM: 6662/1: amba: make amba_bustype non-static

2011-02-23T16:24:08Z

Export amba_bustype struct so it can be used for things like registering bus notifiers. Signed-off-by: Rob Herring Signed-off-by: Russell King

ARM: 6467/1: amba: optional PrimeCell core voltage switch

2010-11-26T10:59:12Z

On some contemporary sub-micron SoCs, peripherals on the chip have power domain switches, i.e. the voltage to the core may be turned off to conserve power. In the Ux500 we have this for out PrimeCell derivates. This patch makes it possible to specify an (optional) regulator to handle the voltage domain switch on AMBA PrimeCells, modeled very similar to how block clocks are handled. Additional amba_vcore_[enable|disable] calls are supplied to make it possible introduce optional powering off of the core voltage. Using this will require code to spool/unspool any core HW state. Cc: Rabin Vincent Cc: Bengt Jonsson Cc: Jonas Aaberg Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: 6368/1: move the PrimeCell IDs to use macros

2010-10-08T09:02:27Z

This make four macros for the PrimeCell ID register available to drivers that use them witout using the PrimeCell/AMBA bus abstraction and struct amba_device. It also moves the magic PrimeCell CID "B105F00D" to the bus.h header file. Signed-off-by: Linus Walleij Signed-off-by: Russell King