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2016-05-19Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds6-0/+1396
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.7. Here's the summary of the changes: - ATH79: Support for DTB passuing using the UHI boot protocol - ATH79: Remove support for builtin DTB. - ATH79: Add zboot debug serial support. - ATH79: Add initial support for Dragino MS14 (Dragine 2), Onion Omega and DPT-Module. - ATH79: Update devicetree clock support for AR9132 and AR9331. - ATH79: Cleanup the DT code. - ATH79: Support newer SOCs in ath79_ddr_ctrl_init. - ATH79: Fix regression in PCI window initialization. - BCM47xx: Move SPROM driver to drivers/firmware/ - BCM63xx: Enable partition parser in defconfig. - BMIPS: BMIPS5000 has I cache filing from D cache - BMIPS: BMIPS: Add cpu-feature-overrides.h - BMIPS: Add Whirlwind support - BMIPS: Adjust mips-hpt-frequency for BCM7435 - BMIPS: Remove maxcpus from BCM97435SVMB DTS - BMIPS: Add missing 7038 L1 register cells to BCM7435 - BMIPS: Various tweaks to initialization code. - BMIPS: Enable partition parser in defconfig. - BMIPS: Cache tweaks. - BMIPS: Add UART, I2C and SATA devices to DT. - BMIPS: Add BCM6358 and BCM63268support - BMIPS: Add device tree example for BCM6358. - BMIPS: Improve Improve BCM6328 and BCM6368 device trees - Lantiq: Add support for device tree file from boot loader - Lantiq: Allow build with no built-in DT. - Loongson 3: Reserve 32MB for RS780E integrated GPU. - Loongson 3: Fix build error after ld-version.sh modification - Loongson 3: Move chipset ACPI code from drivers to arch. - Loongson 3: Speedup irq processing. - Loongson 3: Add basic Loongson 3A support. - Loongson 3: Set cache flush handlers to nop. - Loongson 3: Invalidate special TLBs when needed. - Loongson 3: Fast TLB refill handler. - MT7620: Fallback strategy for invalid syscfg0. - Netlogic: Fix CP0_EBASE redefinition warnings - Octeon: Initialization fixes - Octeon: Add DTS files for the D-Link DSR-1000N and EdgeRouter Lite - Octeon: Enable add Octeon-drivers in cavium_octeon_defconfig - Octeon: Correctly handle endian-swapped initramfs images. - Octeon: Support CN73xx, CN75xx and CN78xx. - Octeon: Remove dead code from cvmx-sysinfo. - Octeon: Extend number of supported CPUs past 32. - Octeon: Remove some code limiting NR_IRQS to 255. - Octeon: Simplify octeon_irq_ciu_gpio_set_type. - Octeon: Mark some functions __init in smp.c - Octeon: Octeon: Add Octeon III CN7xxx interface detection - PIC32: Add serial driver and bindings for it. - PIC32: Add PIC32 deadman timer driver and bindings. - PIC32: Add PIC32 clock timer driver and bindings. - Pistachio: Determine SoC revision during boot - Sibyte: Fix Kconfig dependencies of SIBYTE_BUS_WATCHER. - Sibyte: Strip redundant comments from bcm1480_regs.h. - Panic immediately if panic_on_oops is set. - module: fix incorrect IS_ERR_VALUE macro usage. - module: Make consistent use of pr_* - Remove no longer needed work_on_cpu() call. - Remove CONFIG_IPV6_PRIVACY from defconfigs. - Fix registers of non-crashing CPUs in dumps. - Handle MIPSisms in new vmcore_elf32_check_arch. - Select CONFIG_HANDLE_DOMAIN_IRQ and make it work. - Allow RIXI to be used on non-R2 or R6 cores. - Reserve nosave data for hibernation - Fix siginfo.h to use strict POSIX types. - Don't unwind user mode with EVA. - Fix watchpoint restoration - Ptrace watchpoints for R6. - Sync icache when it fills from dcache - I6400 I-cache fills from dcache. - Various MSA fixes. - Cleanup MIPS_CPU_* definitions. - Signal: Move generic copy_siginfo to signal.h - Signal: Fix uapi include in exported asm/siginfo.h - Timer fixes for sake of KVM. - XPA TLB refill fixes. - Treat perf counter feature - Update John Crispin's email address - Add PIC32 watchdog and bindings. - Handle R10000 LL/SC bug in set_pte() - cpufreq: Various fixes for Longson1. - R6: Fix R2 emulation. - mathemu: Cosmetic fix to ADDIUPC emulation, plenty of other small fixes - ELF: ABI and FP fixes. - Allow for relocatable kernel and use that to support KASLR. - Fix CPC_BASE_ADDR mask - Plenty fo smp-cps, CM, R6 and M6250 fixes. - Make reset_control_ops const. - Fix kernel command line handling of leading whitespace. - Cleanups to cache handling. - Add brcm, bcm6345-l1-intc device tree bindings. - Use generic clkdev.h header - Remove CLK_IS_ROOT usage. - Misc small cleanups. - CM: Fix compilation error when !MIPS_CM - oprofile: Fix a preemption issue - Detect DSP ASE v3 support:1" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (275 commits) MIPS: pic32mzda: fix getting timer clock rate. MIPS: ath79: fix regression in PCI window initialization MIPS: ath79: make ath79_ddr_ctrl_init() compatible for newer SoCs MIPS: Fix VZ probe gas errors with binutils <2.24 MIPS: perf: Fix I6400 event numbers MIPS: DEC: Export `ioasic_ssr_lock' to modules MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC MIPS: CM: Fix compilation error when !MIPS_CM MIPS: Fix genvdso error on rebuild USB: ohci-jz4740: Remove obsolete driver MIPS: JZ4740: Probe OHCI platform device via DT MIPS: JZ4740: Qi LB60: Remove support for AVT2 variant MIPS: pistachio: Determine SoC revision during boot MIPS: BMIPS: Adjust mips-hpt-frequency for BCM7435 mips: mt7620: fallback to SDRAM when syscfg0 does not have a valid value for the memory type MIPS: Prevent "restoration" of MSA context in non-MSA kernels MIPS: cevt-r4k: Dynamically calculate min_delta_ns MIPS: malta-time: Take seconds into account MIPS: malta-time: Start GIC count before syncing to RTC MIPS: Force CPUs to lose FP context during mode switches ...
2016-05-18Merge tag 'armsoc-drivers' of ↵Linus Torvalds8-47/+148
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, these contain various things that touch the drivers/ directory but got merged through arm-soc for practical reasons. For the most part, this is now related to power management controllers, which have not yet been abstracted into a separate subsystem, and typically require some code in drivers/soc or arch/arm to control the power domains. Another large chunk here is a rework of the NVIDIA Tegra USB3.0 support, which was surprisingly tricky and took a long time to get done. Finally, reset controller handling as always gets merged through here as well" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits) arm-ccn: Enable building as module soc/tegra: pmc: Add generic PM domain support usb: xhci: tegra: Add Tegra210 support usb: xhci: Add NVIDIA Tegra XUSB controller driver dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding PCI: tegra: Support per-lane PHYs dt-bindings: pci: tegra: Update for per-lane PHYs phy: tegra: Add Tegra210 support phy: Add Tegra XUSB pad controller support dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding phy: core: Allow children node to be overridden clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs drivers: firmware: psci: make two helper functions inline soc: renesas: rcar-sysc: Add support for R-Car H3 power areas soc: renesas: rcar-sysc: Add support for R-Car E2 power areas soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas soc: renesas: rcar-sysc: Add support for R-Car H2 power areas ...
2016-05-18Merge tag 'armsoc-dt' of ↵Linus Torvalds2-1/+16
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM DT updates from Arnd Bergmann: "These are all the updates to device tree files for 32-bit platforms, which as usual makes up the bulk of the ARM SoC changes: 462 non-merge changesets, 450 files changed, 23340 insertions, 5216 deletions. The three platforms that are added with the "soc" branch are here as well, and we add some related machine files: - For Aspeed AST2400/AST2500, we get the evaluation platform and the Tyan Palmetto POWER8 mainboard that uses the AST2400 BMC - For Oxnas 810SE, the Western Digital "My Book World Edition" is added as the only platform at the moment. - For ARM MPS2, the AN385 (Cortex-M3) and AN399 (Cortex-M7) are supported On the ARM Realview development platform, we now support all machines with device tree, previously only the board files were supported, which in turn will likely be removed soon. Qualcomm IPQ4019 is the second generation ARM based "Internet Processor", following the IPQ806x that is used in many high-end WiFi routers. This one integrates two ath10k wifi radios that were previously on separate chips. Other boards that got added for existing chips are: Ti OMAP family: - Amazon Kindle Fire, first generation, tablet and ebook reader - OnRISC Baltos iR 2110 and 3220 embedded industrial PCs - TI AM5728 IDK, TI AM3359 ICE-V2, and TI DRA722 Rev C EVM development systems Samsung EXYNOS platform: - Samsung ARTIK5 evaluation board, see https://www.artik.io/modules/overview/artik-5/ NXP i.MX platforms: - Ka-Ro electronics TX6S-8034, TX6S-8035, TX6U-8033, TX6U-81xx, TX6Q-1036, TX6Q-1110/-1130, TXUL-0010 and TXUL-0011 industrial SoM modules - Embest MarS Board i.MX6Dual DIY platform - Boundary Devices i.MX6 Quad Plus Nitrogen6_MAX and SoloX Nitrogen6sx embedded boards - Technexion Pico i.MX6UL compute module - ZII VF610 Development Board Marvell embedded (mvebu, orion, kirkwood) platforms: - Linksys Viper (E4200v2 / EA4500) WiFi router - Buffalo Kurobox Pro NAS Qualcomm Snapdragon: - Arrow DragonBoard 600c (96boards) with APQ8064 Snapdragon 600 Rockchips platform: - mqmaker MiQi single-board computer Altera SoCFPGA: - samtec VIN|ING 1000 vehicle communication interface Allwinner Sunxi platforms: - Dserve DSRV9703C tablet - Difrnce DIT4350 tablet - Colorfly E708 Q1 tablet - Polaroid MID2809PXE04 tablet - Olimex A20 OLinuXino LIME2 single board computer - Xunlong Orange Pi 2, Orange Pi One, and Orange Pi PC single board computers Across many platforms, bug fixes went in to address warnings that dtc now emits with 'make dtbs W=1'. Further changes for device enablement went into Ti OMAP, bcm283x (Raspberry Pi), bcm47xx (wifi router), Ti Davinci, Samsung EXYNOS, Marvell mvebu/kirkwood/orion, NXP i.MX/Vybrid NXP LPC18xx, NXP LPC32xx, Renesas shmobile/r-mobile/r-car, Rockchips rk3xxx, ST Ux500, ST STi, Atmel AT91/SAMA5, Altera SoCFPGA, Allwinner Sunxi, Sigma Designs Tango, NVIDIA Tegra, Socionext Uniphier and ARM Versatile Express" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (458 commits) ARM: dts: tango4: Import watchdog node ARM: dts: tango4: Update cpus node for cpufreq ARM: dts: tango4: Update DT to match clk driver ARM: dts: tango4: Initial thermal support arm/dst: Add Aspeed ast2500 device tree arm/dts: Add Aspeed ast2400 device tree ARM: sun7i: dt: Add pll3 and pll7 clocks ARM: dts: sunxi: Add a olinuxino-lime2-emmc ARM: dts: at91: sama5d4: add trng node ARM: dts: at91: sama5d3: add trng node ARM: dts: at91: sama5d2: add trng node ARM: dts: at91: at91sam9g45 family: reduce the trng register map size ARM: sun4i: dt: Add pll3 and pll7 clocks ARM: sun5i: chip: Enable the TV Encoder ARM: sun5i: r8: Add display blocks to the DTSI ARM: sun5i: a13: Add display and TCON clocks ARM: dts: ux500: configure the accelerometers open drain ARM: mx5: dts: Enable USB OTG on M53EVK ARM: dts: imx6ul-14x14-evk: Add audio support ARM: dts: imx6qdl: Remove unneeded unit-addresses ...
2016-05-17Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (21 commits) gitignore: fix wording mfd: ab8500-debugfs: fix "between" in printk memstick: trivial fix of spelling mistake on management cpupowerutils: bench: fix "average" treewide: Fix typos in printk IB/mlx4: printk fix pinctrl: sirf/atlas7: fix printk spelling serial: mctrl_gpio: Grammar s/lines GPIOs/line GPIOs/, /sets/set/ w1: comment spelling s/minmum/minimum/ Blackfin: comment spelling s/divsor/divisor/ metag: Fix misspellings in comments. ia64: Fix misspellings in comments. hexagon: Fix misspellings in comments. tools/perf: Fix misspellings in comments. cris: Fix misspellings in comments. c6x: Fix misspellings in comments. blackfin: Fix misspelling of 'register' in comment. avr32: Fix misspelling of 'definitions' in comment. treewide: Fix typos in printk Doc: treewide : Fix typos in DocBook/filesystem.xml ...
2016-05-13CLK: microchip: Add Microchip PIC32 clock driver.Purna Chandra Mandal6-0/+1396
This clock driver implements PIC32 specific clock-tree. clock-tree entities can only be configured through device-tree file (OF). Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-clk@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13247/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-09Merge tag 'tegra-for-4.7-phy' of ↵Arnd Bergmann1-0/+58
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers Merge "phy: tegra: Changes for v4.7-rc1" from Thierry Reding: This set of patches adds support for the Tegra XUSB pad controller. The controller provides a set of pads (lanes) that are used for I/O by other IP blocks within Tegra SoCs (PCIe, SATA and XUSB). * tag 'tegra-for-4.7-phy' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: phy: tegra: Add Tegra210 support phy: Add Tegra XUSB pad controller support dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding phy: core: Allow children node to be overridden clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs
2016-04-28clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLsAndrew Bresticker1-0/+58
On Tegra210, hardware control of the SATA and XUSB pad PLLs must be done during the UPHY enable sequence rather than the PLLE enable sequence. Export functions to do this so that hardware control can be enabled from the XUSB padctl driver. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-28treewide: Fix typos in printkMasanari Iida1-1/+1
This patch fix spelling typos in printk from various part of the codes. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-04-26Merge tag 'renesas-rcar-sysc2-for-v4.7' of ↵Arnd Bergmann7-47/+90
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Merge "Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.7" from Simon Horman: Introduce a DT-based driver for the R-Car System Controller, as found on Renesas R-Car H1, R-Car Gen2, and R-Car Gen3 SoCs. * tag 'renesas-rcar-sysc2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (30 commits) soc: renesas: rcar-sysc: Add support for R-Car H3 power areas soc: renesas: rcar-sysc: Add support for R-Car E2 power areas soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas soc: renesas: rcar-sysc: Add support for R-Car H2 power areas soc: renesas: rcar-sysc: Add support for R-Car H1 power areas soc: renesas: rcar-sysc: Enable Clock Domain for I/O devices soc: renesas: rcar-sysc: Make rcar_sysc_power_is_off() static soc: renesas: rcar-sysc: Add DT support for SYSC PM domains soc: renesas: rcar-sysc: Improve rcar_sysc_power() debug info soc: renesas: Move pm-rcar to drivers/soc/renesas/rcar-sysc clk: renesas: cpg-mssr: Export cpg_mssr_{at,de}tach_dev() clk: renesas: mstp: Provide dummy attach/detach_dev callbacks clk: renesas: Provide Kconfig symbols for CPG/MSSR and CPG/MSTP support soc: renesas: Add r8a7795 SYSC PM Domain Binding Definitions soc: renesas: Add r8a7794 SYSC PM Domain Binding Definitions soc: renesas: Add r8a7793 SYSC PM Domain Binding Definitions soc: renesas: Add r8a7791 SYSC PM Domain Binding Definitions soc: renesas: Add r8a7790 SYSC PM Domain Binding Definitions soc: renesas: Add r8a7779 SYSC PM Domain Binding Definitions ...
2016-04-24Merge tag 'omap-for-v4.7/dt-part1' of ↵Arnd Bergmann1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt Merge "First set of device tree changes for omaps for v4.7 merge window" from Tony Lindgren: - Two sets of name and unit address check fixes for dts files. - DMA, McASP, and timer and regulator related dts changes for dra7 - Add more devices for Nokia N9/N950 - Initial support for am335x ICEv2 - Initial support for am572x-IDK - Pinctrl changes for am335x-baltos-ir5221 - Initial support for Amazon Kindle Fire (first generation) - A series of changes to add GPIO controller support for the GPMC driver. The driver changes will be merged separately. - Support for am43xx clkout1 - Pinctrl and RTC changes for am335x-chili - Add support for dra72-evm rev C (SR2.0) * tag 'omap-for-v4.7/dt-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (61 commits) ARM: dts: Add support for dra72-evm rev C (SR2.0) ARM: dts: am335x-chilisom: Enable poweroff PMIC sequence using RTC signal ARM: dts: am335x-chili*: Move Ethernet MAC description from SOM to board ARM: dts: am335x-chili*: Move uart0 description from SOM to board ARM: dts: am43xx: add support for clkout1 clock ARM: dts: omap3-beagle: Provide NAND ready pin ARM: dts: am335x: Provide NAND ready pin ARM: dts: am437x: Provide NAND ready pin ARM: dts: dra7x-evm: Provide NAND ready pin ARM: dts: dm816x: Enable gpio controller for GPMC ARM: dts: dm814x: Enable gpio controller for GPMC ARM: dts: omap3: Enable gpio controller for GPMC ARM: dts: am4372: Enable gpio controller for GPMC ARM: dts: am335x: Enable gpio controller for GPMC ARM: dts: dra7: Enable gpio controller for GPMC ARM: dts: omap5: Enable gpio and interrupt controller for GPMC ARM: dts: omap4: Enable gpio and interrupt controller for GPMC ARM: dts: omap24xx: Enable gpio and interrupt controller for GPMC ARM: dts: omap4-kc1: Power off support ARM: dts: omap4-kc1: LEDs support ...
2016-04-24Merge tag 'samsung-dt-exynos3250-artik5-4.7' of ↵Arnd Bergmann1-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt Merge "Topic branch for Device Tree changes for Exynos 3250 for v4.7" from Krzysztof Kozlowski: Merge necessary new clocks from Sylwester (used by new board) and add support for Exynos3250-based Artik5 board. * tag 'samsung-dt-exynos3250-artik5-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: dts: exynos: Add MSHC2 DT node for SD card for exynos3250-artik5-eval board ARM: dts: exynos: Add exynos3250-artik5 dtsi file for ARTIK5 module ARM: dts: exynos: Add MSHC2 DT node for Exynos3250 SoC ARM: dts: exynos: Add UART2 DT node for Exynos3250 SoC ARM: dts: exynos: Add initial gpio setting of MMC2 device for exynos3250-monk ARM: dts: exynos: Add initial pin configuration for exynos3250-rinato clk: samsung: exynos3250: Add MMC2 clock clk: samsung: exynos3250: Add UART2 clock dt-bindings: Add the clock id of UART2 and MMC2 for Exynos3250
2016-04-20clk: renesas: cpg-mssr: Export cpg_mssr_{at,de}tach_dev()Geert Uytterhoeven1-6/+12
The R-Car SYSC PM Domain driver has to power manage devices in power areas using clocks. To reuse code and to share knowledge of clocks suitable for power management, this is ideally done through the existing cpg_mssr_attach_dev() and cpg_mssr_detach_dev() callbacks. Hence these callbacks can no longer rely on their "domain" parameter pointing to the CPG/MSSR Clock Domain. To handle this, keep a pointer to the clock domain in a static variable. cpg_mssr_attach_dev() has to support probe deferral, as the R-Car SYSC PM Domain may be initialized, and devices may be added to it, before the CPG/MSSR Clock Domain is initialized. Dummy callbacks are provided for the case where CPG/MSTP support is not included, so the rcar-sysc driver won't have to care about this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-04-20clk: renesas: Provide Kconfig symbols for CPG/MSSR and CPG/MSTP supportGeert Uytterhoeven3-12/+31
Currently the decision whether to build the renesas-cpg-mssr and clk-mstp drivers is handled by Makefile logic. However, the rcar-sysc driver will need to know whether CPG/MSSR and/or CPG/MSTP support are available or not. To avoid having to duplicate this logic, move it to Kconfig. Provide non-visible CLK_RENESAS_CPG_MSSR and CLK_RENESAS_CPG_MSTP Kconfig symbols, which can be used by both Makefiles and C code. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-04-15Merge tag 'imx-clk-fixes-4.6' of ↵Stephen Boyd1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-fixes The i.MX clk fixes for 4.6: - Fix the typo in CAN clock definition which is introduced by commit ee36027427c7 ("clk: imx: Add clock support for imx6qp") * tag 'imx-clk-fixes-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: clk: imx6q: fix typo in CAN clock definition
2016-04-13clk: imx6q: fix typo in CAN clock definitionLothar Waßmann1-1/+1
commit ee36027427c7 ("clk: imx: Add clock support for imx6qp") introduced a regression due to a subtle typo in the 'can_root' clock definition. The effect is that trying to configure the bitrate of the can interfaces fails with -EDOM or produces a division by zero error due to the clock_freq of the can serial clock being reported as '0'. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Fixes: ee36027427c7 ("clk: imx: Add clock support for imx6qp") Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-11ARM: dts: dra7xx: Correct mcasp8_ahclkx_mux namePeter Ujfalusi1-1/+1
rename the mcasp8_ahclk_mux to mcasp8_ahclkx_mux. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> [tony@atomide.com: updated for the unit offsets] Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-07clk: renesas: mstp: Clarify cpg_mstp_{at,de}tach_dev() domain parameterGeert Uytterhoeven1-2/+2
Make it clear that the "domain" parameter of the cpg_mstp_attach_dev() and cpg_mstp_detach_dev() functions is not used. The cpg_mstp_attach_dev() and cpg_mstp_detach_dev() callbacks are not only used by the CPG/MSTP Clock Domain driver, but also by the R-Mobile SYSC PM Domain driver. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-04-07clk: renesas: cpg-mssr: Drop check for CONFIG_PM_GENERIC_DOMAINS_OFGeert Uytterhoeven1-11/+0
As of commit 71d076ceb245f0d9 ("ARM: shmobile: Enable PM and PM_GENERIC_DOMAINS for SoCs with PM Domains"), CONFIG_PM_GENERIC_DOMAINS_OF is always enabled for SoCs with a CPG/MSSR block. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-04-07clk: renesas: mstp: Drop check for CONFIG_PM_GENERIC_DOMAINS_OFGeert Uytterhoeven1-3/+0
As of commit 71d076ceb245f0d9 ("ARM: shmobile: Enable PM and PM_GENERIC_DOMAINS for SoCs with PM Domains"), CONFIG_PM_GENERIC_DOMAINS_OF is always enabled for SoCs with MSTP clocks. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-04-06clk: renesas: r8a7795: add RWDT clockWolfram Sang1-0/+1
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-04-06clk: renesas: r8a7795: add R clkWolfram Sang1-0/+16
R can select between two parents. We deal with it like this: During initialization, check if EXTALR is populated. If so, use it for R. If not, use R_Internal. clk_mux doesn't help here because we don't want to switch parents depending on the clock rate. The clock rate (and source) should stay constant for the watchdog, so I think a setup like this during initialization makes sense. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-04-06clk: renesas: r8a7795: add OSC and RINT clocksWolfram Sang1-0/+5
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-04-06clk: renesas: cpg-mssr: add generic support for read-only DIV6 clocksWolfram Sang2-6/+15
Gen3 has two clocks (OSC and R) which look like a DIV6 clock but their divider value is read-only and depends on MD pins at bootup. Add support for such clocks by reading the value and adding a fixed clock. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-03-31clk: samsung: exynos3250: Add MMC2 clockChanwoo Choi1-0/+9
This patch add the MMC2 clocks (mux, divider, gate) of Exynos3250 SoC. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-03-31clk: samsung: exynos3250: Add UART2 clockPankaj Dubey1-0/+6
This patch add the UART2 clocks (mux, divider, gate) of Exynos3250 SoC. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-03-29clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepllMatthew McClintock1-0/+10
Drivers for these don't exist yet so we will add them as fixed clocks so we don't BUG() if we change clocks that reference these clocks. Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: qcom: ipq4019: switch remaining defines to enumsMatthew McClintock1-35/+25
When this was added not all the remaining defines were switched over to use enums, so let's complete that process here Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: qcom: Make reset_control_ops constPhilipp Zabel2-2/+2
The qcom_reset_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: tegra: Make reset_control_ops constPhilipp Zabel1-1/+1
The rst_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: sunxi: Make reset_control_ops constPhilipp Zabel3-3/+3
The sunxi_ve_reset_ops, sun9i_mmc_reset_ops, and sunxi_usb_reset_ops structures are never modified. Make them const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: atlas7: Make reset_control_ops constPhilipp Zabel1-1/+1
The atlas7_rst_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: rockchip: Make reset_control_ops constPhilipp Zabel1-1/+1
The rockchip_softrst_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: mmp: Make reset_control_ops constPhilipp Zabel1-1/+1
The mmp_clk_reset_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: mediatek: Make reset_control_ops constPhilipp Zabel1-1/+1
The mtk_reset_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29clk: renesas: r8a7795: make SD clk definition specific for GEN3Wolfram Sang2-7/+7
About SD clocks: The clock type is Gen3 specific, the callbacks are all Gen3 specific; I think the clock definition should also be Gen3 specific and not in the general header file. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-03-29clk: renesas: r8a7795: add PWM clockUlrich Hecht1-0/+1
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-03-23Merge tag 'clk-for-linus' of ↵Linus Torvalds163-2357/+5232
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The clk changes for this release cycle are mostly dominated by new device support in terms of LoC, but there has been some cleanup in the core as well as the usual minor clk additions to various drivers. Core: - parent tracking has been simplified - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started - of_clk_init() doesn't consider disabled DT nodes anymore - clk_unregister() had an error path bug squashed - of_clk_get_parent_count() has been fixed to only return unsigned ints - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone New Drivers: - NXP LPC18xx creg - QCOM IPQ4019 GCC - TI dm814x ADPLL - i.MX6QP Updates: - Cyngus audio clks found on Broadcom iProc devices - Non-critical fixes for BCM2385 PLLs - Samsung exynos5433 updates for clk id errors, HDMI support, suspend/resume simplifications - USB, CAN, LVDS, and FCP clks on shmobile devices - sunxi got support for more clks on new SoCs and went through a minor refactoring/rewrite to use a simpler factor clk construct - rockchip added some more clk ids and added suport for fraction dividers - QCOM GDSCs in msm8996 - A new devm helper to make adding custom actions simpler (acked by Greg)" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits) clk: bcm2835: fix check of error code returned by devm_ioremap_resource() clk: renesas: div6: use RENESAS for #define clk: renesas: Rename header file renesas.h clk: max77{686,802}: Remove CLK_IS_ROOT clk: versatile: Remove CLK_IS_ROOT clk: sunxi: Remove use of variable length array clk: fixed-rate: Remove CLK_IS_ROOT clk: qcom: Remove CLK_IS_ROOT doc: dt: add documentation for lpc1850-creg-clk driver clk: add lpc18xx creg clk driver clk: lpc32xx: fix compilation warning clk: xgene: Add missing parenthesis when clearing divider value clk: mb86s7x: Remove CLK_IS_ROOT clk: x86: Remove clkdev.h and clk.h includes clk: x86: Remove CLK_IS_ROOT clk: mvebu: Remove CLK_IS_ROOT clk: renesas: move drivers to renesas directory clk: si5{14,351,70}: Remove CLK_IS_ROOT clk: scpi: Remove CLK_IS_ROOT clk: s2mps11: Remove CLK_IS_ROOT ...
2016-03-20Merge tag 'armsoc-drivers' of ↵Linus Torvalds15-1245/+649
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, these contain various things that touch the drivers/ directory but got merged through arm-soc for practical reasons: - Rockchip rk3368 gains power domain support - Small updates for the ARM spmi driver - The Atmel PMC driver saw a larger rework, touching both arch/arm/mach-at91 and drivers/clk/at91 - All reset controller driver changes alway get merged through arm-soc, though this time the largest change is the addition of a MIPS pistachio reset driver - One bugfix for the NXP (formerly Freescale) i.MX weim bus driver" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) bus: imx-weim: Take the 'status' property value into account clk: at91: remove useless includes clk: at91: pmc: remove useless capacities handling clk: at91: pmc: drop at91_pmc_base usb: gadget: atmel: access the PMC using regmap ARM: at91: remove useless includes and function prototypes ARM: at91: pm: move idle functions to pm.c ARM: at91: pm: find and remap the pmc ARM: at91: pm: simply call at91_pm_init clk: at91: pmc: move pmc structures to C file clk: at91: pmc: merge at91_pmc_init in atmel_pmc_probe clk: at91: remove IRQ handling and use polling clk: at91: make use of syscon/regmap internally clk: at91: make use of syscon to share PMC registers in several drivers hwmon: (scpi) add energy meter support firmware: arm_scpi: add support for 64-bit sensor values firmware: arm_scpi: decrease Tx timeout to 20ms firmware: arm_scpi: fix send_message and sensor_get_value for big-endian reset: sti: Make reset_control_ops const reset: zynq: Make reset_control_ops const ...
2016-03-20Merge tag 'armsoc-arm64' of ↵Linus Torvalds31-184/+149
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC 64-bit changes from Arnd Bergmann: "Here's our branch of ARM64 contents for this merge window, now containing all ARM64 changes other than device tree files. - Various new platforms get added: * Allwinner A64 SoC * Annapurna Labs Alpine SoCs * Broadcom Vulcan * Marvell Armada 3700 SoCs * Amlogic S905 - Various defconfig changes to enable platform specific drivers This branch includes the clk git tree to resolve a build-time dependency" * tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) arm64: defconfig: Increase MMC_BLOCK_MINORS to 16 arm64: defconfig: Add Qualcomm sdhci and restart functionality ARM64: Enable Amlogic Meson GXBaby platform arm64: defconfig: Enable Samsung MFD and related configs arm64: alpine: select the Alpine MSI controller driver arm64: defconfig: enable the Alpine family arm64: add Alpine SoC family arm64: defconfig: Enable exynos thermal config arm64: add defconfig options for Allwinner SoCs arm64: defconfig: Enable DesignWare APB GPIO controller arm64: defconfig: Add Renesas R-Car Gen3 USB 2.0 phy driver support arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS clk: samsung: Don't build ARMv8 clock drivers on ARMv7 MAINTAINERS: Add entry for Broadcom Vulcan SoC arm64: cputype info for Broadcom Vulcan arm64: Broadcom Vulcan support arm64: defconfig: Add Broadcom Vulcan to defconfig arm64: update ARCH_MVEBU for Marvell Armada 7K/8K support Documentation: arm: add Marvell Armada 7K and 8K families Documentation: arm: add link to Armada 38x Functional Spec ...
2016-03-20Merge tag 'armsoc-soc' of ↵Linus Torvalds3-25/+24
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "Newly added support for additional SoCs: - Axis Artpec-6 SoC family - Allwinner A83T SoC - Mediatek MT7623 - NXP i.MX6QP SoC - ST Microelectronics stm32f469 microcontroller New features: - SMP support for Mediatek mt2701 - Big-endian support for NXP i.MX - DaVinci now uses the new DMA engine dma_slave_map - OMAP now uses the new DMA engine dma_slave_map - earlyprintk support for palmchip uart on mach-tango - delay timer support for orion Other: - Exynos PMU driver moved out to drivers/soc/ - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: uniphier: rework SMP code to support new System Bus binding ARM: uniphier: add missing of_node_put() ARM: at91: avoid defining CONFIG_* symbols in source code ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1 ARM: imx: Make reset_control_ops const ARM: imx: Do L2 errata only if the L2 cache isn't enabled ARM: imx: select ARM_CPU_SUSPEND only for imx6 dmaengine: pxa_dma: fix the maximum requestor line ARM: alpine: select the Alpine MSI controller driver ARM: pxa: add the number of DMA requestor lines dmaengine: mmp-pdma: add number of requestors dma: mmp_pdma: Add the #dma-requests DT property documentation ARM: OMAP2+: Add rtc hwmod configuration for ti81xx ARM: s3c24xx: Avoid warning for inb/outb ARM: zynq: Move early printk virtual address to vmalloc area ARM: DRA7: hwmod: Add custom reset handler for PCIeSS ARM: SAMSUNG: Remove unused register offset definition ARM: EXYNOS: Cleanup header files inclusion drivers: soc: samsung: Enable COMPILE_TEST MAINTAINERS: Add maintainers entry for drivers/soc/samsung ...
2016-03-19Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds1-6/+25
Pull ARM updates from Russell King: "Another mixture of changes this time around: - Split XIP linker file from main linker file to make it more maintainable, and various XIP fixes, and clean up a resulting macro. - Decompressor cleanups from Masahiro Yamada - Avoid printing an error for a missing L2 cache - Remove some duplicated symbols in System.map, and move vectors/stubs back into kernel VMA - Various low priority fixes from Arnd - Updates to allow bus match functions to return negative errno values, touching some drivers and the driver core. Greg has acked these changes. - Virtualisation platform udpates form Jean-Philippe Brucker. - Security enhancements from Kees Cook - Rework some Kconfig dependencies and move PSCI idle management code out of arch/arm into drivers/firmware/psci.c - ARM DMA mapping updates, touching media, acked by Mauro. - Fix places in ARM code which should be using virt_to_idmap() so that Keystone2 can work. - Fix Marvell Tauros2 to work again with non-DT boots. - Provide a delay timer for ARM Orion platforms" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (45 commits) ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0 ARM: 8547/1: dma-mapping: store buffer information ARM: 8543/1: decompressor: rename suffix_y to compress-y ARM: 8542/1: decompressor: merge piggy.*.S and simplify Makefile ARM: 8541/1: decompressor: drop redundant FORCE in Makefile ARM: 8540/1: decompressor: use clean-files instead of extra-y to clean files ARM: 8539/1: decompressor: drop more unneeded assignments to "targets" ARM: 8538/1: decompressor: drop unneeded assignments to "targets" ARM: 8532/1: uncompress: mark putc as inline ARM: 8531/1: turn init_new_context into an inline function ARM: 8530/1: remove VIRT_TO_BUS ARM: 8537/1: drop unused DEBUG_RODATA from XIP_KERNEL ARM: 8536/1: mm: hide __start_rodata_section_aligned for non-debug builds ARM: 8535/1: mm: DEBUG_RODATA makes no sense with XIP_KERNEL ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs ARM: make the physical-relative calculation more obvious ARM: 8512/1: proc-v7.S: Adjust stack address when XIP_KERNEL ARM: 8411/1: Add default SPARSEMEM settings ARM: 8503/1: clk_register_clkdev: remove format string interface ARM: 8529/1: remove 'i' and 'zi' targets ...
2016-03-16clk: rockchip: associate SCLK_MAC_PLL and disable reparenting on rk3036Heiko Stuebner1-1/+1
The emac needs constant and very specific rate but the possible PLL-sources are very limited, so we expect the PLL source to be set manually on per board and don't want it to get changed in an automatic way later. So add the necessary clock-id and disable reparenting on set_rate calls. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-16clk: rockchip: associate the rk3036 HCLK_EMAC clock-idXing Zheng1-1/+1
Associate the new clock id the clock. Signed-off-by: Xing Zheng <zhengxing@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Cc: Xing Zheng <zhengxing@rock-chips.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-15clk: bcm2835: fix check of error code returned by devm_ioremap_resource()Vladimir Zapolskiy1-2/+2
The change fixes potential oops while accessing iomem on invalid address, if devm_ioremap_resource() fails due to some reason. The devm_ioremap_resource() function returns ERR_PTR() and never returns NULL, which makes useless a following check for NULL. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Fixes: 5e63dcc74b30 ("clk: bcm2835: Add a driver for the auxiliary peripheral clock gates") Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-15clk: renesas: div6: use RENESAS for #defineSimon Horman1-2/+2
Name the #define guarding compilation of this header __RENESAS_CLK_DIV6_H__ rather than __SHMOBILE_CLK_DIV6_H__. This is a follow-up to renaming the directory in which this file lives from shmobile to renesas which is in turn part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-15clk: renesas: Rename header file renesas.hSimon Horman8-8/+8
This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Along with the above mentioned Kconfig changes it seems appropriate to also rename files. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-15clk: max77{686,802}: Remove CLK_IS_ROOTStephen Boyd2-5/+0
This flag is a no-op now. Remove usage of the flag. Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-15clk: versatile: Remove CLK_IS_ROOTStephen Boyd4-9/+6
This flag is a no-op now. Remove usage of the flag. Cc: Pawel Moll <pawel.moll@arm.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-15clk: sunxi: Remove use of variable length arrayStephen Boyd1-2/+9
Using an array allocated on the stack may lead to stack overflows and other problems so let's move the allocation to the heap instead. This silences the following checker warning as well. drivers/clk/sunxi/clk-sun8i-mbus.c:36:29: warning: Variable length array is used Cc: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-04clk: fixed-rate: Remove CLK_IS_ROOTStephen Boyd1-2/+1
This flag is a no-op now. Remove usage of the flag. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>