kernel/linux.git/drivers/amba/bus.c, branch v3.18.100

PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h

2014-09-29T23:16:44+00:00

The commit 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM domain for a device) started using errno values in pm.h header file. It also failed to include the header for these, thus it caused compiler errors. Instead of including the errno header to pm.h, let's move the functions to pm_domain.h, since it's a better match. Fixes: 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM domain for a device) Signed-off-by: Ulf Hansson Acked-by: Geert Uytterhoeven Acked-by: Wolfram Sang Acked-by: Mark Brown Signed-off-by: Rafael J. Wysocki

amba: Add support for attach/detach of PM domains

2014-09-22T13:57:40+00:00

AMBA devices may on some SoCs resides in PM domains. To be able to manage these devices from there, let's try to attach devices to their corresponding PM domain during the probe phase. To reverse these actions at the remove phase, we try to detach the device from its PM domain. Signed-off-by: Ulf Hansson Reviewed-by: Kevin Hilman Reviewed-by: Dmitry Torokhov Signed-off-by: Rafael J. Wysocki

ARM: 7958/1: amba: Let runtime PM callbacks be available for CONFIG_PM

2014-02-18T16:06:17+00:00

Convert to the SET_PM_RUNTIME_PM macro while defining the runtime PM callbacks. This means the callbacks becomes available for both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME, which is needed by drivers and power domains. Signed-off-by: Ulf Hansson Signed-off-by: Russell King

ARM: 7916/1: amba: Add clk_prepare|unprepare in runtime PM callbacks

2013-12-09T20:25:20+00:00

To fully gate the clock and thus potentially also save more power in runtime suspend state, extend clock handling with clk_prepare|unprepare in the runtime PM callbacks. Signed-off-by: Ulf Hansson Signed-off-by: Russell King

ARM: 7915/1: amba: Convert to clk_prepare_enable and clk_disable_unprepare

2013-12-09T20:25:19+00:00

To simplify code and error handling let's use clk_prepare_enable and clk_disable_unprepare. No functional change. Signed-off-by: Ulf Hansson Signed-off-by: Russell King

ARM: 7914/1: amba: Drop legacy PM support and use the pm_generic functions

2013-12-09T20:25:19+00:00

All AMBA drivers have converted to use the modern PM ops thus we can safely drop the legacy PM support from the bus. While using the modern PM ops it also makes sense to convert to use the pm_generic callback functions. Signed-off-by: Ulf Hansson Signed-off-by: Russell King

DMA-API: amba: get rid of separate dma_mask

2013-10-31T14:48:38+00:00

AMBA Primecell devices always treat streaming and coherent DMA exactly the same, so there's no point in having the masks separated. Acked-by: Grant Likely Signed-off-by: Russell King

PM / Runtime: Rework the "runtime idle" helper routine

2013-06-03T19:49:52+00:00

The "runtime idle" helper routine, rpm_idle(), currently ignores return values from .runtime_idle() callbacks executed by it. However, it turns out that many subsystems use pm_generic_runtime_idle() which checks the return value of the driver's callback and executes pm_runtime_suspend() for the device unless that value is not 0. If that logic is moved to rpm_idle() instead, pm_generic_runtime_idle() can be dropped and its users will not need any .runtime_idle() callbacks any more. Moreover, the PCI, SCSI, and SATA subsystems' .runtime_idle() routines, pci_pm_runtime_idle(), scsi_runtime_idle(), and ata_port_runtime_idle(), respectively, as well as a few drivers' ones may be simplified if rpm_idle() calls rpm_suspend() after 0 has been returned by the .runtime_idle() callback executed by it. To reduce overall code bloat, make the changes described above. Tested-by: Mika Westerberg Tested-by: Kevin Hilman Signed-off-by: Rafael J. Wysocki Acked-by: Kevin Hilman Reviewed-by: Ulf Hansson Acked-by: Alan Stern

Drivers: amba: remove __dev* attributes.

2013-01-03T23:57:02+00:00

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed, as well as the use of CONFIG_HOTPLUG. This patch does both, removing the use of CONFIG_HOTPLUG in the amba/bus.c file, and __devinit and __devinitconst in the tegra-ahb.c driver. Cc: Bill Pemberton Cc: Russell King Signed-off-by: Greg Kroah-Hartman

ARM: 7588/1: amba: create a resource parent registrator

2012-12-03T11:15:35+00:00

This creates amba_apb_device_add_res() and amba_ahb_device_add_res() respectively, to add devices with another parent than iomem_resource. This is needed to specify that a device is contained in a specific IO range. Signed-off-by: Linus Walleij Signed-off-by: Russell King