08 Jun, 2017

1 commit


26 Jan, 2017

1 commit


15 Oct, 2016

1 commit

  • Pull more powerpc updates from Michael Ellerman:
    "Some more powerpc updates for 4.9:

    Freescale updates from Scott Wood:
    - qbman support (a prerequisite for datapath drivers such as ethernet)
    - a PCI DMA fix+improvement
    - reset handler changes
    - more 8xx optimizations
    - some cleanups and fixes.'

    Fixes:
    - selftests/powerpc: Add missing binaries to .gitignores (Michael Ellerman)
    - selftests/powerpc: Fix build break caused by EXPORT_SYMBOL changes (Michael Ellerman)
    - powerpc/pseries: Fix stack corruption in htpe code (Laurent Dufour)
    - powerpc/64s: Fix power4_fixup_nap placement (Nicholas Piggin)
    - powerpc/64: Fix incorrect return value from __copy_tofrom_user (Paul Mackerras)
    - powerpc/mm/hash64: Fix might_have_hea() check (Michael Ellerman)

    Other:
    - MAINTAINERS: Remove myself from PA Semi entries (Olof Johansson)
    - MAINTAINERS: Drop separate pseries entry (Michael Ellerman)
    - MAINTAINERS: Update powerpc website & add selftests (Michael Ellerman):

    * tag 'powerpc-4.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (35 commits)
    powerpc/mm/hash64: Fix might_have_hea() check
    powerpc/64: Fix incorrect return value from __copy_tofrom_user
    powerpc/64s: Fix power4_fixup_nap placement
    powerpc/pseries: Fix stack corruption in htpe code
    selftests/powerpc: Fix build break caused by EXPORT_SYMBOL changes
    MAINTAINERS: Update powerpc website & add selftests
    MAINTAINERS: Drop separate pseries entry
    MAINTAINERS: Remove myself from PA Semi entries
    selftests/powerpc: Add missing binaries to .gitignores
    arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig
    soc/qman: Add self-test for QMan driver
    soc/bman: Add self-test for BMan driver
    soc/fsl: Introduce DPAA 1.x QMan device driver
    soc/fsl: Introduce DPAA 1.x BMan device driver
    powerpc/8xx: make user addr DTLB miss the short path
    powerpc/8xx: Move additional DTLBMiss handlers out of exception area
    powerpc/8xx: use r3 to scratch CR in ITLBmiss
    soc/fsl/qe: fix gpio save_regs functions
    powerpc/8xx: add dedicated machine check handler
    powerpc/8xx: add system_reset_exception
    ...

    Linus Torvalds
     

08 Oct, 2016

1 commit

  • 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
    ...

    Linus Torvalds
     

25 Sep, 2016

10 commits

  • Enable the drivers on the powerpc arch.

    Signed-off-by: Roy Pledge
    Signed-off-by: Claudiu Manoil
    Signed-off-by: Scott Wood

    Claudiu Manoil
     
  • Add self tests for the DPAA 1.x Queue Manager driver. The tests
    ensure that the driver can properly enqueue and dequeue to/from
    frame queues using the QMan portal infrastructure.

    Signed-off-by: Roy Pledge
    Signed-off-by: Claudiu Manoil
    Signed-off-by: Scott Wood

    Claudiu Manoil
     
  • Add a self test for the DPAA 1.x Buffer Manager driver. This
    test ensures that the driver can properly acquire and release
    buffers using the BMan portal infrastructure.

    Signed-off-by: Roy Pledge
    Signed-off-by: Claudiu Manoil
    Signed-off-by: Scott Wood

    Claudiu Manoil
     
  • This driver enables the Freescale DPAA 1.x Queue Manager block.
    QMan is a hardware accelerator that manages frame queues. It allows
    CPUs and other accelerators connected to the SoC datapath to enqueue
    and dequeue ethernet frames, thus providing the infrastructure for
    data exchange among CPUs and datapath accelerators.

    Signed-off-by: Roy Pledge
    Signed-off-by: Claudiu Manoil
    Signed-off-by: Scott Wood

    Claudiu Manoil
     
  • This driver enables the Freescale DPAA 1.x Buffer Manager block.
    BMan is a hardware accelerator that manages buffer pools. It allows
    CPUs and other accelerators connected to the SoC datapath to acquire
    and release buffers during data processing.

    Signed-off-by: Roy Pledge
    Signed-off-by: Claudiu Manoil
    Signed-off-by: Scott Wood

    Claudiu Manoil
     
  • of_mm_gpiochip_add_data() calls mm_gc->save_regs() before
    setting the data. Therefore ->save_regs() cannot use
    gpiochip_get_data()

    An Oops is encountered without this fix.

    fixes: 1e714e54b5ca5 ("powerpc: qe_lib-gpio: use gpiochip data pointer")
    Signed-off-by: Christophe Leroy
    Cc:
    Reviewed-by: Linus Walleij
    Signed-off-by: Scott Wood

    Christophe Leroy
     
  • Commit 0e6e01ff694ee ("CPM/QE: use genalloc to manage CPM/QE muram")
    has changed the way muram is managed.
    genalloc uses kmalloc(), hence requires the SLAB to be up and running.

    On powerpc 8xx, cpm_reset() is called early during startup.
    cpm_reset() then calls cpm_muram_init() before SLAB is available,
    hence the following Oops.

    cpm_reset() cannot be called during initcalls because the CPM is
    needed for console.

    This patch removes the call to cpm_muram_init() from cpm_reset().
    cpm_muram_init() will be called from a new function called cpm_init()
    which is declared as subsys_initcall, unless cpm_muram_alloc() is
    called earlier for the serial console in which case cpm_muram_init()
    will be called from there.

    The reason for calling it from two places is that some drivers
    (e.g. i2c-cpm) need some of the initialisations done by
    cpm_muram_init() but don't call cpm_muram_alloc(). The console
    driver calls cpm_muram_alloc() but some platforms might not use
    the CPM serial ports for console.

    [ 0.000000] Unable to handle kernel paging request for data at address 0x00000008
    [ 0.000000] Faulting instruction address: 0xc01acce0
    [ 0.000000] Oops: Kernel access of bad area, sig: 11 [#1]
    [ 0.000000] PREEMPT CMPC885
    [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.14-g0886ed8 #5
    [ 0.000000] task: c05183e0 ti: c0536000 task.ti: c0536000
    [ 0.000000] NIP: c01acce0 LR: c0011068 CTR: 00000000
    [ 0.000000] REGS: c0537e50 TRAP: 0300 Not tainted (4.4.14-s3k-dev-g0886ed8-svn)
    [ 0.000000] MSR: 00001032 CR: 28044428 XER: 00000000
    [ 0.000000] DAR: 00000008 DSISR: c0000000
    GPR00: c0011068 c0537f00 c05183e0 00000000 00009000 ffffffff 00000bc0 ffffffff
    GPR08: ff003000 ff00b000 ff003bbf 00000000 22044422 100d43a8 00000000 07ff94e8
    GPR16: 00000000 07bb5d70 00000000 07ff81f4 07ff81f4 07ff81f4 00000000 00000000
    GPR24: 07ffb3a0 07fe7628 c0550000 c7ffa190 c0540000 ff003bbf 00000000 00000001
    [ 0.000000] NIP [c01acce0] gen_pool_add_virt+0x14/0xdc
    [ 0.000000] LR [c0011068] cpm_muram_init+0xd4/0x18c
    [ 0.000000] Call Trace:
    [ 0.000000] [c0537f00] [00000200] 0x200 (unreliable)
    [ 0.000000] [c0537f20] [c0011068] cpm_muram_init+0xd4/0x18c
    [ 0.000000] [c0537f70] [c0494684] cpm_reset+0xb4/0xc8
    [ 0.000000] [c0537f90] [c0494c64] cmpc885_setup_arch+0x10/0x30
    [ 0.000000] [c0537fa0] [c0493cd4] setup_arch+0x130/0x168
    [ 0.000000] [c0537fb0] [c04906bc] start_kernel+0x88/0x380
    [ 0.000000] [c0537ff0] [c0002224] start_here+0x38/0x98
    [ 0.000000] Instruction dump:
    [ 0.000000] 91430010 91430014 80010014 83e1000c 7c0803a6 38210010 4e800020 7c0802a6
    [ 0.000000] 9421ffe0 bf61000c 90010024 7c7e1b78 7c9c2378 7cc31c30 3863001f
    [ 0.000000] ---[ end trace dc8fa200cb88537f ]---

    fixes: 0e6e01ff694ee ("CPM/QE: use genalloc to manage CPM/QE muram")
    Cc: stable@vger.linux.org
    Signed-off-by: Christophe Leroy
    [scottwood: Removed some string changes unrelated to bugfix]
    Signed-off-by: Scott Wood

    Christophe Leroy
     
  • Use of_property_read_bool to check for the existence of a property.

    The semantic patch that makes this change is as follows:
    (http://coccinelle.lip6.fr/)

    //
    @@
    expression e1,e2;
    statement S2,S1;
    @@
    - if (of_get_property(e1,e2,NULL))
    + if (of_property_read_bool(e1,e2))
    S1 else S2
    //

    Signed-off-by: Julia Lawall
    Signed-off-by: Scott Wood

    Julia Lawall
     
  • modify get_qe_base function with of_address_to_resource
    instead of of_get_property and of_translate_address.

    Signed-off-by: Zhao Qiang
    Signed-off-by: Scott Wood

    Zhao Qiang
     
  • Use the function resource_size instead of explicit computation.

    Problem found using Coccinelle.

    Signed-off-by: Vaishali Thakkar
    Signed-off-by: Scott Wood

    Vaishali Thakkar
     

19 Sep, 2016

1 commit


15 Sep, 2016

2 commits

  • …egra/linux into next/drivers

    Pull "soc/tegra: Changes for v4.9-rc1" from Thierry Reding:

    This contains a single patch to fix an issue with setting the deep power
    down mode of I/O rails.

    * tag 'tegra-for-4.9-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
    soc/tegra: pmc: Fix incorrect DPD request

    Arnd Bergmann
     
  • …t/agross/linux into next/drivers

    Pull "Qualcomm ARM Based Driver Updates for v4.9" from Andy Gross:

    * Silence smem probe defer messages
    * Make scm explicitly non-modular
    * Assorted SMD bug fixes and minor changes
    * Add PM8018 RTC support

    * tag 'qcom-drivers-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
    rtc: rtc-pm8xxx: Add support for pm8018 rtc
    soc: qcom: smd: Reset rx tail rather than tx
    soc: qcom: smd: Represent smd edges as devices
    soc: qcom: smd: Request irqs after parsing properties
    soc: qcom: smd: Simplify multi channel handling
    soc: qcom: smd: Correct compile stub prototypes
    firmware: qcom_scm: make it explicitly non-modular
    soc: qcom: smem: Silence probe defer error

    Arnd Bergmann
     

13 Sep, 2016

1 commit


02 Sep, 2016

1 commit


24 Aug, 2016

4 commits

  • By representing each edge as its own device the channels are no longer
    tied to being parented by the same smd device and as such an edge can
    live as children of e.g. remoteproc instances.

    Signed-off-by: Bjorn Andersson
    Signed-off-by: Andy Gross

    Bjorn Andersson
     
  • The code exectued by the interrupt handler depends on the values parsed
    after requesting the irq, just to be save we should therefor move the
    request_irq() call to be done after parsing the properties.

    Signed-off-by: Bjorn Andersson
    Signed-off-by: Andy Gross

    Bjorn Andersson
     
  • Multi-channel clients split between several drivers need a way to close
    individual channels, as these drivers might be removed individually.
    With this in place the responsibility of closing additionally opened
    channels to the client as well only concerning smd about the primary
    channel.

    With this approach we will only trigger removal of SMD devices based on
    the state of the primary channel, however we get in sync with how rpmsg
    works.

    Signed-off-by: Bjorn Andersson
    Signed-off-by: Andy Gross

    Bjorn Andersson
     
  • If we fail to get the hwspinlock due to probe defer, we shouldn't
    print an error message. Just be silent in this case.

    Cc: Bjorn Andersson
    Signed-off-by: Stephen Boyd
    Reviewed-by: Bjorn Andersson
    Signed-off-by: Andy Gross

    Stephen Boyd
     

23 Aug, 2016

1 commit


19 Aug, 2016

1 commit


16 Aug, 2016

1 commit

  • Reading the DPD_REQ & DPD2_REQ registers returns the previous requests.
    If we sets the current request bit with the returned value, then other
    pads will be turned on or off unexpectedly.

    Signed-off-by: Vince Hsu
    Reviewed-by: Jon Hunter
    Signed-off-by: Thierry Reding

    Vince Hsu
     

02 Aug, 2016

2 commits

  • 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
    ...

    Linus Torvalds
     
  • Pull ARM SoC platform updates from Olof Johansson:
    "Improved and new platform support for various SoCs:

    New SoC support:
    - Broadcom BCM23550
    - Freescale i.MX7Solo
    - Qualcomm MDM9615
    - Renesas r8a7792

    Improvements:
    - convert clps711x to multiplatform
    - debug uart improvements for Atmel platforms
    - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
    - OMAP tweaks and improvements to hwmod
    - OMAP support for kexec on SMP"

    * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
    ARM: davinci: fix build break because of undeclared dm365_evm_snd_data
    ARM: s3c64xx: smartq: Avoid sparse warnings
    ARM: sti: Implement dummy L2 cache's write_sec
    ARM: STi: Update machine _namestr to be more generic.
    arm: meson: explicitly select clk drivers
    ARM: tango: add Suspend-to-RAM support
    ARM: hisi: consolidate the hisilicon machine entries
    ARM: tango: fix CONFIG_HOTPLUG_CPU=n build
    MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry
    MAINTAINERS: Update BCM63XX entry
    MAINTAINERS: Add NS2 entry
    MAINTAINERS: Fix nsp false-positives
    MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries
    ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
    ARM: clps711x: Switch to MULTIPLATFORM
    ARM: clps711x: Remove boards support
    ARM: clps711x: Add basic DT support
    ARM: clps711x: Reduce static map size
    ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu
    ARM: oxnas: Change OX810SE default driver config
    ...

    Linus Torvalds
     

14 Jul, 2016

2 commits

  • …it/krzk/linux into next/drivers

    Merge "Samsung drivers/soc update for v4.8, part 3" into next/drivers:

    1. Fix size of allocation for Exynos SROM registers (too much was allocated).
    2. Constify fix.

    * tag 'samsung-drivers-4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
    soc: samsung: pmu: Constify arrays with PMU data
    memory: samsung: exynos-srom: Fix wrong count of registers

    Arnd Bergmann
     
  • …t/linusw/linux-stericsson into next/drivers

    Merge "Ux500 cleanups from Arnd" from Linus Walleij:

    This is a set of cleanups for the Ux500 that reduce the number
    of machine-local files and boardfile-type data for regulators
    and ASoC.

    * tag 'ux500-cleanup-bundle' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
    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

    Arnd Bergmann
     

12 Jul, 2016

1 commit

  • As the ux500 id code is basically a standalone driver, we can move it
    out of the arch code into drivers/soc/ux500.

    This is a user-visible change, as it moves all the devices in sysfs
    from /sys/devices/soc0/ to /sys/devices/ and leaves the soc0 node as a
    separate device.

    Originally the idea was to put all on-chip devices under the soc node,
    and ux500 was the first platform to have this device, but later platforms
    almost all didn't follow that pattern, so this makes the platform do
    the same thing as everyone else.

    Since the platform is really obsolete now, I am optimistic that nothing
    will break after moving the devices around.

    As the SoC driver no longer has access to the private header files,
    I'm changing the code to instead look up the address of the backupram
    from devicetree, which is a good idea anyway.

    Finally, having a separate Kconfig symbol means the driver is now
    optional and could even be a loadable module rather than always being
    built-in if we allowed that for soc_device.

    Signed-off-by: Arnd Bergmann
    [Fixup mising Makefile, fixup BB_UID_BASE to fc0]
    Signed-off-by: Linus Walleij

    Arnd Bergmann
     

07 Jul, 2016

3 commits

  • We get a harmless warning if the RASPBERRYPI_POWER driver is enabled without
    CONFIG_OF during compile testing:

    warning: RASPBERRYPI_POWER selects PM_GENERIC_DOMAINS_OF which has unmet direct dependencies (PM_GENERIC_DOMAINS && OF)

    There is no need to select PM_GENERIC_DOMAINS_OF if OF is set, so we can
    replace the 'select' with a dependency.

    Signed-off-by: Arnd Bergmann
    Acked-by: Eric Anholt

    Arnd Bergmann
     
  • …egra/linux into next/drivers

    soc/tegra: Changes for v4.8-rc1

    Contains fixes and cleanups to the PMC driver, as well as some fixes for
    the generic PM domain support and some prep work to support PCIe on 64-
    bit ARM.

    * tag 'tegra-for-4.8-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
    soc/tegra: Stub out PCIe IRQ workaround on 64-bit ARM
    soc/tegra: pmc: Enable XUSB partitions on boot
    soc/tegra: pmc: Initialise power partitions early
    soc/tegra: pmc: Add specific error messages
    soc/tegra: pmc: Use whitespace more consistently
    soc/tegra: pmc: Don't probe PMC if early initialisation fails
    soc/tegra: pmc: Add missing of_node_put()
    soc/tegra: pmc: Ensure mutex is always initialised
    soc/tegra: pmc: Don't populate SoC data until register space is mapped
    soc/tegra: pmc: Fix early initialisation of PMC
    soc/tegra: pmc: Ensure powergate is available when powering on
    soc/tegra: pmc: Initialise resets associated with a power partition
    soc/tegra: pmc: Use register definitions instead of magic values

    Signed-off-by: Olof Johansson <olof@lixom.net>

    Olof Johansson
     
  • …rnel/git/horms/renesas into next/drivers

    Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.8

    * Prepare for handling SYSC interrupt configuration purely
    from DT in the rcar-sysc driver for new SoCs, while preserving
    backward compatibility with old DTBs for R-Car H1, H2, and M2-W
    * Add R8A7792 support

    * tag 'renesas-rcar-sysc2-for-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
    soc: renesas: rcar-sysc: Improve SYSC interrupt config in legacy wrapper
    soc: renesas: rcar-sysc: Move SYSC interrupt config to rcar-sysc driver
    soc: renesas: rcar-sysc: Make rcar_sysc_init() init the PM domains
    soc: renesas: rcar-sysc: Fix uninitialized error code in rcar_sysc_pd_init()
    soc: renesas: rcar-sysc: add R8A7792 support

    Signed-off-by: Olof Johansson <olof@lixom.net>

    Olof Johansson
     

06 Jul, 2016

1 commit


05 Jul, 2016

1 commit

  • …t/agross/linux into next/drivers

    Qualcomm ARM Based Driver Updates for v4.8

    * Rework of SCM driver
    * Add file patterns for Qualcomm Maintainers entry
    * Add worker for wcnss_ctrl signaling
    * Fixes for smp2p
    * Update smem_state properties to match documentation
    * Add SCM Peripheral Authentication service
    * Expose SCM PAS command 10 as a reset controller

    * tag 'qcom-drivers-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
    firmware: qcom: scm: Expose PAS command 10 as reset-controller
    firmware: qcom: scm: Peripheral Authentication Service
    soc: qcom: Update properties for smem state referencing
    soc: qcom: smp2p: Drop io-accessors
    soc: qcom: smp2p: Correct addressing of outgoing value
    soc: qcom: wcnss_ctrl: Make wcnss_ctrl parent the other components
    firmware: qcom: scm: Add support for ARM64 SoCs
    firmware: qcom: scm: Convert to streaming DMA APIS
    firmware: qcom: scm: Generalize shared error map
    firmware: qcom: scm: Use atomic SCM for cold boot
    firmware: qcom: scm: Convert SCM to platform driver
    MAINTAINERS: Add file patterns for qcom device tree bindings

    Signed-off-by: Olof Johansson <olof@lixom.net>

    Olof Johansson
     

30 Jun, 2016

4 commits

  • The Tegra XHCI driver does not currently manage the Tegra XUSB power
    partitions and so it these partitions have not been enabled by the
    bootloader then the system will crash when probing the XHCI device.

    While proper support for managing the power partitions is being
    developed to the XHCI driver for Tegra, for now power on all the XUSB
    partitions for USB host and super-speed on boot if the XHCI driver is
    enabled.

    Signed-off-by: Jon Hunter
    Signed-off-by: Thierry Reding

    Jon Hunter
     
  • If CONFIG_PM_GENERIC_DOMAINS is not enabled, then power partitions
    associated with a device will not be enabled automatically by the PM
    core when the device is in use. To avoid situations where a device in
    a power partition is to be used but the partition is not enabled,
    initialise the power partitions for Tegra early in the boot process and
    if CONFIG_PM_GENERIC_DOMAINS is not enabled, then power on all
    partitions defined in the device-tree blob.

    Note that if CONFIG_PM_GENERIC_DOMAINS is not enabled, after the
    partitions are turned on, the clocks and resets used as part of the
    sequence for turning on the partition are released again as they are no
    longer needed by the PMC driver. Another benefit of this is that this
    avoids any issues of sharing resets between the PMC driver and other
    device drivers that may wish to independently control a particular
    reset.

    Signed-off-by: Jon Hunter
    Signed-off-by: Thierry Reding

    Jon Hunter
     
  • When initialising a powergate, only a single error message is shown if
    the initialisation fails. Add more error messages to give specific
    details of what failed if the initialisation failed and remove the
    generic failure message.

    Signed-off-by: Jon Hunter
    Signed-off-by: Thierry Reding

    Jon Hunter
     
  • Use blank lines after blocks and before labels for consistency with the
    existing code in the file.

    Signed-off-by: Thierry Reding

    Thierry Reding