linux/drivers/amba, branch v3.6

Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

2012-07-27T22:14:26Z

Pull ARM updates from Russell King: "First ARM push of this merge window, post me coming back from holiday. This is what has been in linux-next for the last few weeks. Not much to say which isn't described by the commit summaries." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (32 commits) ARM: 7463/1: topology: Update cpu_power according to DT information ARM: 7462/1: topology: factorize the update of sibling masks ARM: 7461/1: topology: Add arch_scale_freq_power function ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit} ARM: 7455/1: audit: move syscall auditing until after ptrace SIGTRAP handling ARM: 7454/1: entry: don't bother with syscall tracing on ret_from_fork path ARM: 7453/1: audit: only allow syscall auditing for pure EABI userspace ARM: 7452/1: delay: allow timer-based delay implementation to be selected ARM: 7451/1: arch timer: implement read_current_timer and get_cycles ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process ARM: 7444/1: kernel: add arch-timer C3STOP feature ARM: 7460/1: remove asm/locks.h ARM: 7439/1: head.S: simplify initial page table mapping ARM: 7437/1: zImage: Allow DTB command line concatenation with ATAG_CMDLINE ARM: 7436/1: Do not map the vectors page as write-through on UP systems ...

ARM: 7431/1: amba: use the new linux/sizes.h

2012-06-28T16:14:35Z

Signed-off-by: Alessandro Rubini Acked-by: Giancarlo Asnaghi Acked-by: Linus Walleij Cc: Alan Cox Signed-off-by: Russell King

amba: tegra-ahb: Remove empty *_remove()

2012-06-11T17:48:40Z

Remove unnecessary empty function. Signed-off-by: Hiroshi DOYU Signed-off-by: Stephen Warren

Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2012-05-26T19:22:27Z

Pull arm-soc driver specific updates from Olof Johansson: "These changes are specific to some driver that may be used by multiple boards or socs. The most significant change in here is the move of the samsung iommu code from a platform specific in-kernel interface to the generic iommu subsystem." Fix up trivial conflicts in arch/arm/mach-exynos/Kconfig * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits) mmc: dt: Consolidate DT bindings iommu/exynos: Add iommu driver for EXYNOS Platforms ARM: davinci: optimize the DMA ISR ARM: davinci: implement DEBUG_LL port choice ARM: tegra: Add SMMU enabler in AHB ARM: tegra: Add Tegra AHB driver Input: pxa27x_keypad add choice to set direct_key_mask Input: pxa27x_keypad direct key may be low active Input: pxa27x_keypad bug fix for direct_key_mask Input: pxa27x_keypad keep clock on as wakeup source ARM: dt: tegra: pinmux changes for USB ULPI ARM: tegra: add USB ULPI PHY reset GPIO to device tree ARM: tegra: don't hard-code USB ULPI PHY reset_gpio ARM: tegra: change pll_p_out4's rate to 24MHz ARM: tegra: fix pclk rate ARM: tegra: reparent sclk to pll_c_out1 ARM: tegra: Add pllc clock init table ARM: dt: tegra cardhu: basic audio support ARM: dt: tegra30.dtsi: Add audio-related nodes ARM: tegra: add AUXDATA required for audio ...

ARM: tegra: Add SMMU enabler in AHB

2012-05-08T19:30:49Z

Add extern func, "tegra_ahb_enable_smmu()" to inform AHB that SMMU is ready. Signed-off-by: Hiroshi DOYU Cc: Felipe Balbi Signed-off-by: Stephen Warren

ARM: tegra: Add Tegra AHB driver

2012-05-08T19:30:49Z

Tegra AHB Bus conforms to the AMBA Specification (Rev 2.0) Advanced High-performance Bus (AHB) architecture. The AHB Arbiter controls AHB bus master arbitration. This effectively forms a second level of arbitration for access to the memory controller through the AHB Slave Memory device. The AHB pre-fetch logic can be configured to enhance performance for devices doing sequential access. Each AHB master is assigned to either the high or low priority bin. Both Tegra20/30 have this AHB bus. Some of configuration params could be passed from DT too if needed. Signed-off-by: Hiroshi DOYU Acked-by: Arnd Bergmann Cc: Felipe Balbi Signed-off-by: Stephen Warren

AMBA: get rid of last two uses of NO_IRQ

2012-05-03T10:33:15Z

This gets rid of the last two users of NO_IRQ in AMBA primecell drivers. Signed-off-by: Russell King

ARM: 7369/1: amba: add functions to add devices dynamically

2012-04-19T18:31:33Z

Add two functions to add APB and AHB devices to the amba (PrimeCell) bus dynamically. This is modeled after the static definition macros recently introduced into and can help us in factoring out a bunch of code across the kernel. Since a lot of call sites seem to be using a returned struct amba device* pointer, let's use that. Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: 7366/3: amba: Remove AMBA level regulator support

2012-04-13T13:04:08Z

The AMBA bus regulator support is being used to model on/off switches for power domains which isn't terribly idiomatic for modern kernels with the generic power domain code and creates integration problems on platforms which don't use regulators for their power domains as it's hard to tell the difference between a regulator that is needed but failed to be provided and one that isn't supposed to be there (though DT does make that easier). Platforms that wish to use the regulator API to manage their power domains can indirect via the power domain interface. This feature is only used with the vape supply of the db8500 PRCMU driver which supplies the UARTs and MMC controllers, none of which have support for managing vcore at runtime in mainline (only pl022 SPI controller does). Update that supply to have an always_on constraint until the power domain support for the system is updated so that it is enabled for these users, this is likely to have no impact on practical systems as probably at least one of these devices will be active and cause AMBA to hold the supply on anyway. Signed-off-by: Mark Brown Acked-by: Linus Walleij Tested-by: Shawn Guo Signed-off-by: Russell King

ARM: amba: make use of -1 IRQs warn

2012-01-25T11:04:02Z

Make the core warn about the use of -1 (NO_IRQ) Signed-off-by: Russell King