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2017-08-04bus: uniphier-system-bus: set up registers when resumingMasahiro Yamada1-0/+14
When resuming, set up registers that have been lost in the sleep state. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-07-09Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-1/+0
Pull drm updates from Dave Airlie: "This is the main pull request for the drm, I think I've got one later driver pull for mediatek SoC driver, I'm undecided on if it needs to go to you yet. Otherwise summary below: Core drm: - Atomic add driver private objects - Deprecate preclose hook in modern drivers - MST bandwidth tracking - Use kvmalloc in more places - Add mode_valid hook for crtc/encoder/bridge - Reduce sync_file construction time - Documentation updates - New DRM synchronisation object support New drivers: - pl111 - pl111 CLCD display controller Panel: - Innolux P079ZCA panel driver - Add NL12880B20-05, NL192108AC18-02D, P320HVN03 panels - panel-samsung-s6e3ha2: Add s6e3hf2 panel support i915: - SKL+ watermark fixes - G4x/G33 reset improvements - DP AUX backlight improvements - Buffer based GuC/host communication - New getparam for (sub)slice infomation - Cannonlake and Coffeelake initial patches - Execbuf optimisations radeon/amdgpu: - Lots of Vega10 bug fixes - Preliminary raven support - KIQ support for compute rings - MEC queue management rework - DCE6 Audio support - SR-IOV improvements - Better radeon/amdgpu selection support nouveau: - HDMI stereoscopic support - Display code rework for >= GM20x GPUs msm: - GEM rework for fine-grained locking - Per-process pagetable work - HDMI fixes for Snapdragon 820. vc4: - Remove 256MB CMA limit from vc4 - Add out-fence support - Add support for cygnus - Get/set tiling ioctls support - Add T-format tiling support for scanout zte: - add VGA support. etnaviv: - Thermal throttle support for newer GPUs - Restore userspace buffer cache performance - dma-buf sync fix stm: - add stm32f429 display support exynos: - Rework vblank handling - Fixup sw-trigger code sun4i: - V3s display engine support - HDMI support for older SoCs - Preliminary work on dual-pipeline SoCs. rcar-du: - VSP work imx-drm: - Remove counter load enable from PRE - Double read/write reduction flag support tegra: - Documentation for the host1x and drm driver. - Lots of staging ioctl fixes due to grate project work. omapdrm: - dma-buf fence support - TILER rotation fixes" * tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux: (1270 commits) drm: Remove unused drm_file parameter to drm_syncobj_replace_fence() drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu. amdgpu: Set cik/si_support to 1 by default if radeon isn't built drm/amdgpu/gfx9: fix driver reload with KIQ drm/amdgpu/gfx8: fix driver reload with KIQ drm/amdgpu: Don't call amd_powerplay_destroy() if we don't have powerplay drm/ttm: Fix use-after-free in ttm_bo_clean_mm drm/amd/amdgpu: move get memory type function from early init to sw init drm/amdgpu/cgs: always set reference clock in mode_info drm/amdgpu: fix vblank_time when displays are off drm/amd/powerplay: power value format change for Vega10 drm/amdgpu/gfx9: support the amdgpu.disable_cu option drm/amd/powerplay: change PPSMC_MSG_GetCurrPkgPwr for Vega10 drm/amdgpu: Make amdgpu_cs_parser_init static (v2) drm/amdgpu/cs: fix a typo in a comment drm/amdgpu: Fix the exported always on CU bitmap drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static drm/amdgpu/psp: upper_32_bits/lower_32_bits for address setup drm/amd/powerplay/cz: print message if smc message fails drm/amdgpu: fix typo in amdgpu_debugfs_test_ib_init ...
2017-07-04Merge tag 'armsoc-drivers' of ↵Linus Torvalds2-50/+73
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "New SoC specific drivers: - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later) based on the "BPMP" firmware - Clocksource and system controller drivers for the newly added Action Semi platforms (both arm and arm64). Reset subsystem, merged through arm-soc by tradition: - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs - Various subsystem-wide cleanups Updates for existing SoC-specific drivers - TI GPMC (General Purpose Memory Controller) - Mediatek "scpsys" system controller support for MT6797 - Broadcom "brcmstb_gisb" bus arbitrer - ARM SCPI firmware - Renesas "SYSC" system controller One more driver update was submitted for the Freescale/NXP DPAA data path acceleration that has previously been used on PowerPC chips. I ended up postponing the merge until some API questions for its unusual MMIO access are resolved" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits) clocksource: owl: Add S900 support clocksource: Add Owl timer soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON firmware: tegra: Fix locking bugs in BPMP soc/tegra: flowctrl: Fix error handling soc/tegra: bpmp: Implement generic PM domains soc/tegra: bpmp: Update ABI header PM / Domains: Allow overriding the ->xlate() callback soc: brcmstb: enable drivers for ARM64 and BMIPS soc: renesas: Rework Kconfig and Makefile logic reset: Add the TI SCI reset driver dt-bindings: reset: Add TI SCI reset binding reset: use kref for reference counting soc: qcom: smsm: Improve error handling, quiesce probe deferral cpufreq: scpi: use new scpi_ops functions to remove duplicate code firmware: arm_scpi: add support to populate OPPs and get transition latency dt-bindings: reset: Add reset manager offsets for Stratix10 memory: omap-gpmc: add error message if bank-width property is absent memory: omap-gpmc: make dts snippet include semicolon reset: Add a Gemini reset controller ...
2017-06-23bus: arm-ccn: Enable stats for CCN-502 interconnectVelibor Markovski1-0/+1
Add compatible string for the ARM CCN-502 interconnect Signed-off-by: Velibor Markovski <velibor.markovski@broadcom.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2017-06-23bus: arm-ccn: Use devm_kcalloc() in arm_ccn_probe()Markus Elfring1-4/+4
Multiplications for the size determination of memory allocations indicated that array data structures should be processed. Thus use the corresponding function "devm_kcalloc". This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2017-06-23bus: arm-ccn: Fix module autoloadJavier Martinez Canillas1-0/+1
If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/bus/arm-ccn.ko | grep alias $ After this patch: $ modinfo drivers/bus/arm-ccn.ko | grep alias alias: of:N*T*Carm,ccn-504C* alias: of:N*T*Carm,ccn-504 Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2017-06-17bus: SIMPLE_PM_BUS does not depend on ARCH_RENESASRob Clark1-1/+0
In fact, it is needed for PCI to work on msm8996 (and probably other things). No idea why it was depending on renesas but that doesn't make any sense. So drop the dependency. Signed-off-by: Rob Clark <robdclark@gmail.com> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Arnd Bergmann <arnd@arndb.de>
2017-05-13bus: brcmstb_gisb: update to support new revisionDoug Berger1-0/+10
The 7278 introduces a new version of this core. This commit adds support for that revision. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-05-13bus: brcmstb_gisb: enable driver for ARM64 architectureDoug Berger1-1/+1
The ARM64 architecture can provide meaningful diagnostic output from the GISB arbiter solely from interrupts and notifiers without the need to hook the low level fault handlers. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-05-13bus: brcmstb_gisb: remove low-level ARM hooksDoug Berger1-30/+0
The ARM architecture can provide meaningful diagnostic output from the GISB arbiter solely from interrupts and notifiers without the need to hook the low level fault handlers. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-05-13bus: brcmstb_gisb: add notifier handlingDoug Berger1-0/+39
Check for GISB arbitration errors through a chained notifier when a process dies or a kernel panic occurs. This allows a meaningful GISB diagnostic message to occur along with other diagnostic information from the event. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-05-13bus: brcmstb_gisb: correct support for 64-bit address outputDoug Berger1-16/+20
The GISB bus can support addresses beyond 32-bits. So this commit corrects support for reading a captured 64-bit address into a 64-bit variable by obtaining the high bits from the ARB_ERR_CAP_HI_ADDR register (when present) and then outputting the full 64-bit value. It also removes unused definitions. Fixes: 44127b771d9c ("bus: add Broadcom GISB bus arbiter timeout/error handler") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-05-13bus: brcmstb_gisb: Use register offsets with writes tooDoug Berger1-3/+3
This commit corrects the bug introduced in commit f80835875d3d ("bus: brcmstb_gisb: Look up register offsets in a table") such that gisb_write() translates the register enumeration into an offset from the base address for writes as well as reads. Fixes: f80835875d3d ("bus: brcmstb_gisb: Look up register offsets in a table") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-02-23Merge tag 'armsoc-drivers' of ↵Linus Torvalds1-0/+1
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. A handful of driver changes this time around. The larger changes are: - Reset drivers for hi3660 and zx2967 - AHCI driver for Davinci, acked by Tejun and brought in here due to platform dependencies - Cleanups of atmel-ebi (External Bus Interface) - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc register range on the SoCs) - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) soc: samsung: pmu: Add register defines for pad retention control reset: make zx2967 explicitly non-modular reset: core: fix reset_control_put soc: samsung: pm_domains: Read domain name from the new label property soc: samsung: pm_domains: Remove message about failed memory allocation soc: samsung: pm_domains: Remove unused name field soc: samsung: pm_domains: Use full names in subdomains registration log sata: ahci-da850: un-hardcode the MPY bits sata: ahci-da850: add a workaround for controller instability sata: ahci: export ahci_do_hardreset() locally sata: ahci-da850: implement a workaround for the softreset quirk sata: ahci-da850: add device tree match table sata: ahci-da850: get the sata clock using a connection id soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register memory: atmel-ebi: Enable the SMC clock if specified soc: samsung: pmu: Remove unused and duplicated defines memory: atmel-ebi: Properly handle multiple reference to the same CS memory: atmel-ebi: Fix the test to enable generic SMC logic soc: samsung: pm_domains: Add new Exynos5433 compatible soc: samsung: pmu: Add dummy support for Exynos5433 SoC ...
2017-01-16bus: qcom_ebi2: default y if ARCH_QCOMLinus Walleij1-0/+1
Since we want this external bus to be available on multi_v7 builds, set to default ARCH_QCOM so we get it selected whenever QCOM is enabled. Suggested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-01-02bus: da850-mstpri: fix my e-mail addressBartosz Golaszewski1-1/+1
I noticed my e-mail address is wrong in this one. This patch fixes it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-12-25cpu/hotplug: Cleanup state namesThomas Gleixner2-2/+2
When the state names got added a script was used to add the extra argument to the calls. The script basically converted the state constant to a string, but the cleanup to convert these strings into meaningful ones did not happen. Replace all the useless strings with 'subsys/xxx/yyy:state' strings which are used in all the other places already. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Link: http://lkml.kernel.org/r/20161221192112.085444152@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-12-25bus: arm-ccn: Prevent hotplug callback leakThomas Gleixner1-1/+4
In case the driver registration fails, the hotplug callback is leaked. Not fatal, because it's never invoked as there are no instances registered, but wrong nevertheless. Fixes: fdc15a36d84e ("bus/arm-ccn: Convert to hotplug statemachine") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com>
2016-12-15Merge tag 'armsoc-drivers' of ↵Linus Torvalds4-0/+570
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, including a couple of newly added drivers: - A new driver for the power management controller on TI Keystone - Support for the prerelease "SCPI" firmware protocol that ended up being shipped by Amlogic in their GXBB SoC. - A soc_device can now be matched using a glob from inside the kernel, when another driver wants to know the specific chip it is running on and cannot find out from DT, firmware or hardware. - Renesas SoCs now support identification through the soc_device interface, both in user space and kernel. - Renesas r8a7743 and r8a7745 gain support for their system controller - A new checking module for the ARM "PSCI" (not to be confused with "SCPI" mentioned above) firmware interface. - A new driver for the Tegra GMI memory interface - Support for the Tegra firmware interfaces with their power management controllers As usual, the updates for the reset controller framework are merged here, as they tend to touch multiple SoCs as well, including a new driver for the Oxford (now Broadcom) OX820 chip and the Tegra bpmp interface. The existing drivers for Atmel, Qualcomm, NVIDIA, TI Davinci, and Rockchips SoCs see some further updates" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (76 commits) misc: sram: remove useless #ifdef drivers: psci: Allow PSCI node to be disabled drivers: psci: PSCI checker module soc: renesas: Identify SoC and register with the SoC bus firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails firmware: qcom: scm: Remove core, iface and bus clocks dependency dt-bindings: firmware: scm: Add MSM8996 DT bindings memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name() bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name() ARM: shmobile: Document DT bindings for Product Register soc: renesas: rcar-sysc: add R8A7745 support reset: Add Tegra BPMP reset driver dt-bindings: firmware: Allow child nodes inside the Tegra BPMP dt-bindings: Add power domains to Tegra BPMP firmware firmware: tegra: Add BPMP support firmware: tegra: Add IVC library dt-bindings: firmware: Add bindings for Tegra BPMP mailbox: tegra-hsp: Use after free in tegra_hsp_remove_doorbells() mailbox: Add Tegra HSP driver firmware: arm_scpi: add support for pre-v1.0 SCPI compatible ...
2016-12-15Merge tag 'armsoc-soc' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "These are updates for platform specific code on 32-bit ARM machines, essentially anything that can not (yet) be expressed using DT files. Noteworthy changes include: - Added support for the TI DRA71x family of SoCs in mach-omap2, this is an new variant of the the DRA72x/DRA74x automotive infotainment chips we already supported for a while. - Added support for the ST STM32F746 SoC, the first Cortex-M7 based microcontroller we support, related to the smaller STM32F4 family. - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see http://elinux.org/RZ-G - SMP is now supported on the OX820 platform - A lot of code in mach-omap2 gets removed as a follow-up to removing support for board files in the previous release - Davinci has some new work to improve USB support - For i.MX, the performance monitor now supports profiling the memory controller using 'perf'" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits) ARM: davinci: da830-evm: use gpio descriptor for mmc pins ARM: davinci: da850-evm: use gpio descriptor for mmc pins ARM: davinci: hawk: use gpio descriptor for mmc pins ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6 ARM: davinci: da8xx: Fix ohci device name ARM: oxnas: Add OX820 config and makefile entry ARM: oxnas: Add OX820 SMP support ARM: davinci: PM: fix build when da850 not compiled in ARM: orion5x: remove legacy support of ls-chl ARM: integrator: drop EBI access use syscon ARM: BCM5301X: Add back handler ignoring external imprecise aborts ARM: davinci: PM: support da8xx DT platforms ARM: davinci: PM: cleanup: remove references to pdata ARM: davinci: PM: rework init, remove platform device ARM: Kconfig: Introduce MACH_STM32F746 flag ARM: mach-stm32: Add a new SOC - STM32F746 ARM: shmobile: document SK-RZG1E board ARM: shmobile: r8a7745: basic SoC support ARM: imx: mach-imx6ul: add imx6ull support ARM: zynq: Reserve correct amount of non-DMA RAM ...
2016-11-30bus: vexpress-config: fix device reference leakJohan Hovold1-1/+6
Make sure to drop the reference to the parent device taken by class_find_device() after populating the bus. Fixes: 3b9334ac835b ("mfd: vexpress: Convert custom func API to regmap") Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-11-30Merge tag 'davinci-for-v4.10/drivers-2' of ↵Arnd Bergmann1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers Pull "DaVinci driver updates for v4.10 (part 2)" from Sekhar Nori: Fixes for drivers already queued to prevent section mismatch warnings introduced by them. * tag 'davinci-for-v4.10/drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name() bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name()
2016-11-23bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name()Bartosz Golaszewski1-3/+1
In order to avoid a section mismatch drop the call to of_flat_dt_get_machine_name() when printing the error message. While we're at it: fix a typo. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-11-18Merge tag 'tegra-for-4.10-bus' of ↵Olof Johansson3-0/+292
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers bus: Add Tegra GMI support This provides a driver to enable the use of the Generic Memory Interface found on Tegra SoCs that can host various types of high-speed devices. * tag 'tegra-for-4.10-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: bus: Add support for Tegra Generic Memory Interface dt/bindings: Add bindings for Tegra GMI controller Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-15bus: Add support for Tegra Generic Memory InterfaceMirza Krak3-0/+292
The Generic Memory Interface bus can be used to connect high-speed devices such as NOR flash, FPGAs, DSPs... Signed-off-by: Mirza Krak <mirza.krak@gmail.com> Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Tested-on: Colibri T20/T30 on EvalBoard V3.x and GMI-Memory Board Acked-by: Jon Hunter <jonathanh@nvidia.com> [treding@nvidia.com: symmetry and coding style OCD] Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-14bus: davinci: add support for da8xx bus master priority controlBartosz Golaszewski3-0/+280
Create the driver for the da8xx master peripheral priority configuration and implement support for writing to the three Master Priority registers on da850 SoCs. Reviewed-by: Kevin Hilman <khilman@baylibre.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> [nsekhar@ti.com: subject line adjustment] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-10-17bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TESTLinus Walleij1-0/+1
This hides the option for people who do not want their Kconfig vision cluttered (i.e. x86) and enables compile testing apart from the supported main arch. Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-10-17drivers: cci: add missing CCI port availability firmware checkLorenzo Pieralisi1-0/+10
The CCI ports programming interface is available to the kernel only when booted in secure mode (or when firmware enables non-secure access to override CCI ports control). In both cases, firmware reports the CCI ports availability through the device tree CCI ports nodes, which must be parsed and their status checked by the kernel probing path. This check is currently missing and may cause the kernel to erroneously believe it is free to take control of CCI ports where in practice CCI ports control is forbidden. Add the missing CCI port availability check to the CCI driver in order to guarantee sane CCI usage. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-10-07Merge tag 'armsoc-drivers' of ↵Linus Torvalds4-25/+420
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, including a couple of newly added drivers: - The Qualcomm external bus interface 2 (EBI2), used in some of their mobile phone chips for connecting flash memory, LCD displays or other peripherals - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the EFUSE based on that firmware interface. - Perf support for the AppliedMicro X-Gene performance monitor unit - Reset driver for STMicroelectronics STM32 - Reset driver for SocioNext UniPhier SoCs Aside from these, there are minor updates to SoC-specific bus, clocksource, firmware, pinctrl, reset, rtc and pmic drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits) bus: qcom-ebi2: depend on HAS_IOMEM pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181 clk: mvebu: Add clk support for the orion5x SoC mv88f5181 dt-bindings: EXYNOS: Add Exynos5433 PMU compatible clocksource: exynos_mct: Add the support for ARM64 perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver Documentation: Add documentation for APM X-Gene SoC PMU DTS binding MAINTAINERS: Add entry for APM X-Gene SoC PMU driver bus: qcom: add EBI2 driver bus: qcom: add EBI2 device tree bindings rtc: rtc-pm8xxx: Add support for pm8018 rtc nvmem: amlogic: Add Amlogic Meson EFUSE driver firmware: Amlogic: Add secure monitor driver soc: qcom: smd: Reset rx tail rather than tx memory: atmel-sdramc: fix a possible NULL dereference reset: hi6220: allow to compile test driver on other architectures reset: zynq: add driver Kconfig option reset: sunxi: add driver Kconfig option reset: stm32: add driver Kconfig option reset: socfpga: add driver Kconfig option ...
2016-10-03Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds3-118/+51
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull CPU hotplug updates from Thomas Gleixner: "Yet another batch of cpu hotplug core updates and conversions: - Provide core infrastructure for multi instance drivers so the drivers do not have to keep custom lists. - Convert custom lists to the new infrastructure. The block-mq custom list conversion comes through the block tree and makes the diffstat tip over to more lines removed than added. - Handle unbalanced hotplug enable/disable calls more gracefully. - Remove the obsolete CPU_STARTING/DYING notifier support. - Convert another batch of notifier users. The relayfs changes which conflicted with the conversion have been shipped to me by Andrew. The remaining lot is targeted for 4.10 so that we finally can remove the rest of the notifiers" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits) cpufreq: Fix up conversion to hotplug state machine blk/mq: Reserve hotplug states for block multiqueue x86/apic/uv: Convert to hotplug state machine s390/mm/pfault: Convert to hotplug state machine mips/loongson/smp: Convert to hotplug state machine mips/octeon/smp: Convert to hotplug state machine fault-injection/cpu: Convert to hotplug state machine padata: Convert to hotplug state machine cpufreq: Convert to hotplug state machine ACPI/processor: Convert to hotplug state machine virtio scsi: Convert to hotplug state machine oprofile/timer: Convert to hotplug state machine block/softirq: Convert to hotplug state machine lib/irq_poll: Convert to hotplug state machine x86/microcode: Convert to hotplug state machine sh/SH-X3 SMP: Convert to hotplug state machine ia64/mca: Convert to hotplug state machine ARM/OMAP/wakeupgen: Convert to hotplug state machine ARM/shmobile: Convert to hotplug state machine arm64/FP/SIMD: Convert to hotplug state machine ...
2016-10-02bus: qcom-ebi2: depend on HAS_IOMEMLinus Walleij1-0/+1
After being asked to not depend on ARCH_QCOM* or similar, unsurprisingly compilation fails on UM as it has no I/O memory: drivers/built-in.o: In function `qcom_ebi2_probe': >> drivers/bus/qcom-ebi2.c:333: undefined reference to `devm_ioremap_resource' Fix this by letting the Kconfig atleast depend on HAS_IOMEM. Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Andy Gross <andy.gross@linaro.org> Cc: linux-arm-msm@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-21Merge tag 'qcom-ebi2-arm-soc' of ↵Arnd Bergmann3-0/+416
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/drivers Pull "Qualcomm EBI2 bindings and bus driver" from Linus Walleij * tag 'qcom-ebi2-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator: bus: qcom: add EBI2 driver bus: qcom: add EBI2 device tree bindings Acked-by: Andy Gross <andy.gross@linaro.org>
2016-09-08bus: qcom: add EBI2 driverLinus Walleij3-0/+416
This adds a driver for the Qualcomm External Bus Interface EBI2 found in the MSM8660 and APQ8060 SoCs (at least). This was tested with the SMSC9112 ethernet on the APQ8060 Dragonboard sitting on top of the SLOW CS2. Some of my understanding if very vague and based on guesses and extrapolations: the documentation in APQ8060 Qualcomm Application Processor User Guide 80-N7150-14 Rev. A describes select features but does not document the register bit fields. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-07arm-cci: pmu: Fix typo in event nameSuzuki K Poulose1-1/+1
For one of the CCI events exposed under sysfs, "snoop" was typo'd as "snopp". Correct this such that users see the expected event name when enumerating events via sysfs. Cc: arm@kernel.org Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-06MIPS/BUS/CDMM: Convert to hotplug state machineSebastian Andrzej Siewior1-58/+12
Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: James Hogan <james.hogan@imgtec.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160818125731.27256-14-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-02bus/arm-ccn: Use cpu-hp's multi instance support instead custom listSebastian Andrzej Siewior1-33/+21
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/1471024183-12666-6-git-send-email-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-02bus/arm-cci: Use cpu-hp's multi instance support instead custom listSebastian Andrzej Siewior1-27/+18
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Cc: rt@linutronix.de Cc: Olof Johansson <olof@lixom.net> Link: http://lkml.kernel.org/r/1471024183-12666-5-git-send-email-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-02Merge tag 'ccn/fixes-for-4.8-v2' of ↵Arnd Bergmann1-33/+79
git://git.linaro.org/people/pawel.moll/linux into fixes Merge "bus: ARM CCN PMU driver updates" from Paweł Moll: - Fixes and improvements for XP watchpoint and events handling - Added missing condition checks for KVM-related exclusions - Improved interrupt affinity handling - Fix for hrtimer use in polling mode - Event grouping implementation improvement * tag 'ccn/fixes-for-4.8-v2' of git://git.linaro.org/people/pawel.moll/linux: bus: arm-ccn: make event groups reliable bus: arm-ccn: fix hrtimer registration bus: arm-ccn: fix PMU interrupt flags bus: arm-ccn: Add missing event attribute exclusions for host/guest bus: arm-ccn: Correct required arguments for XP PMU events bus: arm-ccn: Fix XP watchpoint settings bitmask bus: arm-ccn: Do not attempt to configure XPs for cycle counter bus: arm-ccn: Fix PMU handling of MN
2016-08-26bus: arm-ccn: make event groups reliableMark Rutland1-9/+20
The CCN PMU driver leaves the counting logic always enabled, and thus events are enabled while groups are manipulated. As each event is stopped and read individually, this leads to arbitrary skew across event groups, which can be seen if counting several identical events. To avoid this, implement pmu_{enable,disable} callbacks to stop and start all counters atomically around event manipulation. As the counters are now stopped, we cannot poll the cycle counter to wait for events to drain from the bus. However, as the counters are stopped and the events will not be read regardless, we can simply allow the bus to drain naturally. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-26bus: arm-ccn: fix hrtimer registrationMark Rutland1-12/+21
The CCN PMU driver has a single hrtimer, used to simulate a periodic interrupt on systems where the overflow interrupt is not possible to use. The hrtimer is started when any event is started, and cancelled when any event is stopped. Thus, stopping a single event is sufficient to disable to hrtimer, and overflows (of other events) may be lost. To avoid this, this patch reworks the hrtimer start/cancel to only occur when the first event is added to a PMU, and the last event removed, making use of the existing bitmap counting active events. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-26bus: arm-ccn: fix PMU interrupt flagsMark Rutland1-2/+3
Currently the IRQ core is permitted to make the CCN PMU IRQ handler threaded, and will allow userspace to change the CPU affinity of the interrupt behind our back. Both of these could violate our synchronisation requirements with the core perf code, which relies upon strict CPU affinity and disabling of interrupts to guarantee mutual exclusion in some cases. As with the CPU PMU drivers, we should request the interrupt with IRQF_NOBALANCING and IRQF_NO_THREAD, to avoid these issues. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Pawel Moll <pawel.moll@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17bus: arm-ccn: Add missing event attribute exclusions for host/guestPawel Moll1-2/+3
CCN PMUs have no knowledge into VM-related origins of the memory traffic, therefore can't handle requests for host-only or guest-only events. Added appropriate exclusions (they should have been there from the beginning). This required changing the error code returned, as the userspace tool only re-negotiates the options (exclude_guest is true by default) only for EINVAL. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17bus: arm-ccn: Correct required arguments for XP PMU eventsPawel Moll1-3/+10
XP can provide events from two sources: watchpoints, observing traffic on device ports and PMU looking at internal buses. Unfortunately the sysfs definition of the PMU events was requiring port number (instead of bus number) and direction (the buses are unidirectional), as these fields were shared with the watchpoint event. Although it does not introduce a major problem (port can be used as bus alias and direction is simply ignored for XP PMU events), it's better to fix it now, before external tools start depending on this behaviour. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17bus: arm-ccn: Fix XP watchpoint settings bitmaskPawel Moll1-2/+2
The code setting XP watchpoint comparator and mask registers should, in order to be fully compliant with specification, zero one or more most significant bits of each field. In both L cases it means zeroing bit 63. The bitmask doing this was wrong, though, zeroing bit 60 instead. Fortunately, due to a lucky coincidence, this turned out to be fairly innocent with the existing hardware. Fixed now. Cc: stable@vger.kernel.org # 3.17+ Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17bus: arm-ccn: Do not attempt to configure XPs for cycle counterPawel Moll1-0/+4
Fuzzing the CCN perf driver revealed a small but definitely dangerous mistake in the event setup code. When a cycle counter is requested, the driver should not reconfigure the events bus at all, otherwise it will corrupt (in most but the simplest cases) its configuration and may end up accessing XP array out of its bounds and corrupting control registers. Reported-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Cc: stable@vger.kernel.org # 3.17+ Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17bus: arm-ccn: Fix PMU handling of MNPawel Moll1-3/+16
The "Miscellaneous Node" fell through cracks of node initialisation, as its ID is shared with HN-I. This patch treats MN as a special case (which it is), adding separate validation check for it and pre-defining the node ID in relevant events descriptions. That way one can simply run: # perf stat -a -e ccn/mn_ecbarrier/ <workload> Additionally, direction in the MN pseudo-events XP watchpoint definitions is corrected to be "TX" (1) as they are defined from the crosspoint point of view (thus barriers are transmitted from XP to MN). Cc: stable@vger.kernel.org # 3.17+ Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-16bus: tegra-aconnect: Use of_pm_clk_add_clk()Jon Hunter1-20/+2
Commit 498b5fdd40dd ("PM / clk: Add support for adding a specific clock from device-tree") add a new helper function for adding a clock from device-tree to a device. Update the Tegra ACONNECT driver to use this new function to simplify the driver. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-16bus: tegra-aconnect: Make symbol tristateThierry Reding1-5/+1
The driver uses symbols that weren't being exported in earlier versions of the Linux kernel and hence it had to be made bool. The exports have been merged into v4.8-rc1, so the driver can now be built as a module again. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-08-08bus: vexpress-config: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+1
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-08-01Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-0/+126
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Driver updates for ARM SoCs. A slew of changes this release cycle. The reset driver tree, that we merge through arm-soc for historical reasons, is also sizable this time around. Among the changes: - clps711x: Treewide changes to compatible strings, merged here for simplicity. - Qualcomm: SCM firmware driver cleanups, move to platform driver - ux500: Major cleanups, removal of old mach-specific infrastructure. - Atmel external bus memory driver - Move of brcmstb platform to the rest of bcm - PMC driver updates for tegra, various fixes and improvements - Samsung platform driver updates to support 64-bit Exynos platforms - Reset controller cleanups moving to devm_reset_controller_register() APIs - Reset controller driver for Amlogic Meson - Reset controller driver for Hisilicon hi6220 - ARM SCPI power domain support" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits) ARM: ux500: consolidate base platform files ARM: ux500: move soc_id driver to drivers/soc ARM: ux500: call ux500_setup_id later ARM: ux500: consolidate soc_device code in id.c ARM: ux500: remove cpu_is_u* helpers ARM: ux500: use CLK_OF_DECLARE() ARM: ux500: move l2x0 init to .init_irq mfd: db8500 stop passing around platform data ASoC: ab8500-codec: remove platform data based probe ARM: ux500: move ab8500_regulator_plat_data into driver ARM: ux500: remove unused regulator data soc: raspberrypi-power: add CONFIG_OF dependency firmware: scpi: add CONFIG_OF dependency video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip pwm: clps711x: Changing the compatibility string to match with the smallest supported chip serial: clps711x: Changing the compatibility string to match with the smallest supported chip irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip clk: clps711x: Changing the compatibility string to match with the smallest supported chip ...