Commit Graph

878 Commits

Author SHA1 Message Date
Laurentiu Tudor 5a1eb8b954 soc: fsl: qman_portals: defer probe after qman's probe
Defer probe of qman portals after qman probing. This fixes the crash
below, seen on NXP LS1043A SoCs:

Unable to handle kernel NULL pointer dereference at virtual address
0000000000000004
Mem abort info:
  ESR = 0x96000004
  Exception class = DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000004
  CM = 0, WnR = 0
[0000000000000004] user address but active_mm is swapper
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted
4.18.0-rc1-next-20180622-00200-g986f5c179185 #9
Hardware name: LS1043A RDB Board (DT)
pstate: 80000005 (Nzcv daif -PAN -UAO)
pc : qman_set_sdest+0x74/0xa0
lr : qman_portal_probe+0x22c/0x470
sp : ffff00000803bbc0
x29: ffff00000803bbc0 x28: 0000000000000000
x27: ffff0000090c1b88 x26: ffff00000927cb68
x25: ffff00000927c000 x24: ffff00000927cb60
x23: 0000000000000000 x22: 0000000000000000
x21: ffff0000090e9000 x20: ffff800073b5c810
x19: ffff800027401298 x18: ffffffffffffffff
x17: 0000000000000001 x16: 0000000000000000
x15: ffff0000090e96c8 x14: ffff80002740138a
x13: ffff0000090f2000 x12: 0000000000000030
x11: ffff000008f25000 x10: 0000000000000000
x9 : ffff80007bdfd2c0 x8 : 0000000000004000
x7 : ffff80007393cc18 x6 : 0040000000000001
x5 : 0000000000000000 x4 : ffffffffffffffff
x3 : 0000000000000004 x2 : ffff00000927c900
x1 : 0000000000000000 x0 : 0000000000000004
Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
Call trace:
 qman_set_sdest+0x74/0xa0
 platform_drv_probe+0x50/0xa8
 driver_probe_device+0x214/0x2f8
 __driver_attach+0xd8/0xe0
 bus_for_each_dev+0x68/0xc8
 driver_attach+0x20/0x28
 bus_add_driver+0x108/0x228
 driver_register+0x60/0x110
 __platform_driver_register+0x40/0x48
 qman_portal_driver_init+0x20/0x84
 do_one_initcall+0x58/0x168
 kernel_init_freeable+0x184/0x22c
 kernel_init+0x10/0x108
 ret_from_fork+0x10/0x18
Code: f9400443 11001000 927e4800 8b000063 (b9400063)
---[ end trace 4f6d50489ecfb930 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-01 17:47:43 -05:00
Laurentiu Tudor 853dc104e6 soc: fsl: qbman: add APIs to retrieve the probing status
Add a couple of new APIs to check the probing status of qman and bman:
 'int bman_is_probed()' and 'int qman_is_probed()'.
They return the following values.
 *  1 if qman/bman were probed correctly
 *  0 if qman/bman were not yet probed
 * -1 if probing of qman/bman failed
Drivers that use qman/bman driver services are required to use these
APIs before calling any functions exported by qman or bman drivers
or otherwise they will crash the kernel.
The APIs will be used in the following couple of qbman portal patches
and later in the series in the dpaa1 ethernet driver.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-09-27 15:43:35 -05:00
Zhao Qiang 96fc74333f soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift()
There is a copy and paste bug so we accidentally use the RX_ shift when
we're in TX_ mode.

Fixes: bb8b2062af ("fsl/qe: setup clock source for TDM mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
(cherry picked from commit 3cb31b634052ed458922e0c8e2b4b093d7fb60b9)
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-09-25 13:57:26 -07:00
Alexandre Belloni 64e9e22e68 soc: fsl: qbman: qman: avoid allocating from non existing gen_pool
If the qman driver didn't probe, calling qman_alloc_fqid_range,
qman_alloc_pool_range or qman_alloc_cgrid_range (as done in dpaa_eth) will
pass a NULL pointer to gen_pool_alloc, leading to a NULL pointer
dereference.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
(cherry picked from commit f72487a2788aa70c3aee1d0ebd5470de9bac953a)
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-09-25 13:57:25 -07:00
Linus Torvalds 2f34a64aea ARM: Device-tree updates
Business as usual -- the bulk of our changes are to devicetree files
 with new hardware support, new SoCs and platforms, and new board types.
 
 New SoCs/platforms:
  - Raspberry Pi Compute Module (CM1) and IO board
  - i.MX6SSL from NXP
  - Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN and
    PLC interfaces
  - TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
    controllers, communication and PRU subsystem and lots of other
    interfaces (PCIe, USB3, etc).
 
 New boards and systems:
  - Several Atmel at91-based boards from Laird
  - Marvell Armada388-based Helios4 board from SolidRun
  - Samsung Aires-based phones (s5pv210)
  - Allwinner A64-based Pinebook laptop
 
 In addition to the above, there's the usual amount of new devices
 described on existing platforms, fixes and tweaks and new minor variants
 of boards/platforms.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM device-tree updates from Olof Johansson:
 "Business as usual -- the bulk of our changes are to devicetree files
  with new hardware support, new SoCs and platforms, and new board
  types.

  New SoCs/platforms:
   - Raspberry Pi Compute Module (CM1) and IO board
   - i.MX6SSL from NXP
   - Renesas RZ/N1D SoC (R9A06G032), Dual Cortex-A7 with Ethernet, CAN
     and PLC interfaces
   - TI AM654 SoC, Quad Cortex-A53, safety subsystem with Cortex-R5
     controllers, communication and PRU subsystem and lots of other
     interfaces (PCIe, USB3, etc).

  New boards and systems:
   - Several Atmel at91-based boards from Laird
   - Marvell Armada388-based Helios4 board from SolidRun
   - Samsung Aires-based phones (s5pv210)
   - Allwinner A64-based Pinebook laptop

  In addition to the above, there's the usual amount of new devices
  described on existing platforms, fixes and tweaks and new minor
  variants of boards/platforms"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (478 commits)
  arm64: dts: sdm845: Add tsens nodes
  arm64: dts: msm8996: thermal: Initialise via DT and add second controller
  arm64: dts: sprd: Add one suspend timer
  arm64: dts: sprd: Add SC27XX ADC device
  arm64: dts: sprd: Add SC27XX eFuse device
  arm64: dts: sprd: Add SC27XX vibrator device
  arm64: dts: sprd: Add SC27XX breathing light controller device
  arm64: dts: meson-axg: add spdif-dit codec
  arm64: dts: meson-axg: add lineout codec
  arm64: dts: meson-axg: add linein codec
  arm64: dts: meson-axg: add tdm interfaces
  arm64: dts: meson-axg: add tdmout formatters
  arm64: dts: meson-axg: add tdmin formatters
  arm64: dts: meson-axg: add spdifout
  arm64: dts: rockchip: add led support for Firefly-RK3399
  arm64: dts: rockchip: remove deprecated Type-C PHY properties on rk3399
  arm64: dts: rockchip: add power button support for Firefly-RK3399
  ARM: dts: aspeed: Add coprocessor interrupt controller
  arm64: dts: meson-axg: add audio arb reset controller
  arm64: dts: meson-axg: add usb power regulator
  ...
2018-08-23 14:02:22 -07:00
Linus Torvalds f3ea496213 ARM: SoC driver updates
Some of the larger changes this merge window:
  - Removal of drivers for Exynos5440, a Samsung SoC that never saw
    widespread use.
  - Uniphier support for USB3 and SPI reset handling
  - Syste control and SRAM drivers and bindings for Allwinner platforms
  - Qualcomm AOSS (Always-on subsystem) reset controller drivers
  - Raspberry Pi hwmon driver for voltage
  - Mediatek pwrap (pmic) support for MT6797 SoC
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Some of the larger changes this merge window:

   - Removal of drivers for Exynos5440, a Samsung SoC that never saw
     widespread use.

   - Uniphier support for USB3 and SPI reset handling

   - Syste control and SRAM drivers and bindings for Allwinner platforms

   - Qualcomm AOSS (Always-on subsystem) reset controller drivers

   - Raspberry Pi hwmon driver for voltage

   - Mediatek pwrap (pmic) support for MT6797 SoC"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
  drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
  soc: fsl: cleanup Kconfig menu
  soc: fsl: dpio: Convert DPIO documentation to .rst
  staging: fsl-mc: Remove remaining files
  staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
  staging: fsl-dpaa2: eth: move generic FD defines to DPIO
  soc: fsl: qe: gpio: Add qe_gpio_set_multiple
  usb: host: exynos: Remove support for Exynos5440
  clk: samsung: Remove support for Exynos5440
  soc: sunxi: Add the A13, A23 and H3 system control compatibles
  reset: uniphier: add reset control support for SPI
  cpufreq: exynos: Remove support for Exynos5440
  ata: ahci-platform: Remove support for Exynos5440
  soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
  soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
  soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
  soc: mediatek: pwrap: fix cipher init setting error
  dt-bindings: pwrap: mediatek: add pwrap support for MT6797
  reset: uniphier: add USB3 core reset control
  dt-bindings: reset: uniphier: add USB3 core reset support
  ...
2018-08-23 13:52:46 -07:00
Linus Torvalds 9e259f9352 ARM: 32-bit SoC platform updates
Most of the SoC updates in this cycle are cleanups and moves to more
 modern infrastructure:
  - Davinci was moved to common clock framework
  - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
    keyboard interface (bitbanged AT keyboard via GPIO).
  - Removal of some stale code for Renesas platforms
  - Power management improvements for i.MX6LL
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM 32-bit SoC platform updates from Olof Johansson:
 "Most of the SoC updates in this cycle are cleanups and moves to more
  modern infrastructure:

   - Davinci was moved to common clock framework

   - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
     keyboard interface (bitbanged AT keyboard via GPIO).

   - Removal of some stale code for Renesas platforms

   - Power management improvements for i.MX6LL"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
  ARM: uniphier: select RESET_CONTROLLER
  arm64: uniphier: select RESET_CONTROLLER
  ARM: uniphier: remove empty Makefile
  ARM: exynos: Clear global variable on init error path
  ARM: exynos: Remove outdated maintainer information
  ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
  ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
  soc: r9a06g032: don't build SMP files for non-SMP config
  ARM: shmobile: Add the R9A06G032 SMP enabler driver
  ARM: at91: pm: configure wakeup sources for ULP1 mode
  ARM: at91: pm: add PMC fast startup registers defines
  ARM: at91: pm: Add ULP1 mode support
  ARM: at91: pm: Use ULP0 naming instead of slow clock
  ARM: hisi: handle of_iomap and fix missing of_node_put
  ARM: hisi: check of_iomap and fix missing of_node_put
  ARM: hisi: fix error handling and missing of_node_put
  ARM: mx5: Set the DBGEN bit in ARM_GPC register
  ARM: imx51: Configure M4IF to avoid visual artifacts
  ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
  ARM: imx: fix i.MX6SLL build
  ...
2018-08-23 13:44:43 -07:00
Linus Torvalds c54fc8658b remoteproc updates for v4.19
This adds support for pre-start and post-shutdown hooks for remoteproc
 subdevices, refactors the Qualcomm Hexagon support to allow reuse
 between several drivers, makes authentication in the MDT file loader
 optional, migrates a few format strings to use %pK and migrates the
 Davinci driver to use the reset framework.
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Merge tag 'rproc-v4.19' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This adds support for pre-start and post-shutdown hooks for remoteproc
  subdevices, refactors the Qualcomm Hexagon support to allow reuse
  between several drivers, makes authentication in the MDT file loader
  optional, migrates a few format strings to use %pK and migrates the
  Davinci driver to use the reset framework"

* tag 'rproc-v4.19' of git://github.com/andersson/remoteproc:
  remoteproc/davinci: use the reset framework
  remoteproc/davinci: Mark error recovery as disabled
  remoteproc: st_slim: replace "%p" with "%pK"
  remoteproc: replace "%p" with "%pK"
  remoteproc: qcom: fix Q6V5_WCSS dependencies
  remoteproc: Reset table_ptr in rproc_start() failure paths
  remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvote
  remoteproc: qcom q6v5: fix modular build
  remoteproc: Introduce prepare and unprepare for subdevices
  remoteproc: rename subdev probe and remove functions
  remoteproc: Make client initialize ops in rproc_subdev
  remoteproc: Make start and stop in subdev optional
  remoteproc: Rename subdev functions to start/stop
  remoteproc: qcom: Introduce Hexagon V5 based WCSS driver
  remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
  remoteproc: qcom: adsp: Use common q6v5 helpers
  remoteproc: q6v5: Extract common resource handling
  remoteproc: qcom: mdt_loader: Make the firmware authentication optional
2018-08-18 16:42:04 -07:00
Linus Torvalds b018fc9800 Power management updates for 4.19-rc1
- Add a new framework for CPU idle time injection (Daniel Lezcano).
 
  - Add AVS support to the armada-37xx cpufreq driver (Gregory CLEMENT).
 
  - Add support for current CPU frequency reporting to the ACPI CPPC
    cpufreq driver (George Cherian).
 
  - Rework the cooling device registration in the imx6q/thermal
    driver (Bastian Stender).
 
  - Make the pcc-cpufreq driver refuse to work with dynamic
    scaling governors on systems with many CPUs to avoid
    scalability issues with it (Rafael Wysocki).
 
  - Fix the intel_pstate driver to report different maximum CPU
    frequencies on systems where they really are different and to
    ignore the turbo active ratio if hardware-managend P-states (HWP)
    are in use; make it use the match_string() helper (Xie Yisheng,
    Srinivas Pandruvada).
 
  - Fix a minor deferred probe issue in the qcom-kryo cpufreq
    driver (Niklas Cassel).
 
  - Add a tracepoint for the tracking of frequency limits changes
    (from Andriod) to the cpufreq core (Ruchi Kandoi).
 
  - Fix a circular lock dependency between CPU hotplug and sysfs
    locking in the cpufreq core reported by lockdep (Waiman Long).
 
  - Avoid excessive error reports on driver registration failures
    in the ARM cpuidle driver (Sudeep Holla).
 
  - Add a new device links flag to the driver core to make links go
    away automatically on supplier driver removal (Vivek Gautam).
 
  - Eliminate potential race condition between system-wide power
    management transitions and system shutdown (Pingfan Liu).
 
  - Add a quirk to save NVS memory on system suspend for the ASUS
    1025C laptop (Willy Tarreau).
 
  - Make more systems use suspend-to-idle (instead of ACPI S3) by
    default (Tristian Celestin).
 
  - Get rid of stack VLA usage in the low-level hibernation code on
    64-bit x86 (Kees Cook).
 
  - Fix error handling in the hibernation core and mark an expected
    fall-through switch in it (Chengguang Xu, Gustavo Silva).
 
  - Extend the generic power domains (genpd) framework to support
    attaching a device to a power domain by name (Ulf Hansson).
 
  - Fix device reference counting and user limits initialization in
    the devfreq core (Arvind Yadav, Matthias Kaehlcke).
 
  - Fix a few issues in the rk3399_dmc devfreq driver and improve its
    documentation (Enric Balletbo i Serra, Lin Huang, Nick Milner).
 
  - Drop a redundant error message from the exynos-ppmu devfreq driver
    (Markus Elfring).
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Merge tag 'pm-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add a new framework for CPU idle time injection, to be used by
  all of the idle injection code in the kernel in the future, fix some
  issues and add a number of relatively small extensions in multiple
  places.

  Specifics:

   - Add a new framework for CPU idle time injection (Daniel Lezcano).

   - Add AVS support to the armada-37xx cpufreq driver (Gregory
     CLEMENT).

   - Add support for current CPU frequency reporting to the ACPI CPPC
     cpufreq driver (George Cherian).

   - Rework the cooling device registration in the imx6q/thermal driver
     (Bastian Stender).

   - Make the pcc-cpufreq driver refuse to work with dynamic scaling
     governors on systems with many CPUs to avoid scalability issues
     with it (Rafael Wysocki).

   - Fix the intel_pstate driver to report different maximum CPU
     frequencies on systems where they really are different and to
     ignore the turbo active ratio if hardware-managend P-states (HWP)
     are in use; make it use the match_string() helper (Xie Yisheng,
     Srinivas Pandruvada).

   - Fix a minor deferred probe issue in the qcom-kryo cpufreq driver
     (Niklas Cassel).

   - Add a tracepoint for the tracking of frequency limits changes (from
     Andriod) to the cpufreq core (Ruchi Kandoi).

   - Fix a circular lock dependency between CPU hotplug and sysfs
     locking in the cpufreq core reported by lockdep (Waiman Long).

   - Avoid excessive error reports on driver registration failures in
     the ARM cpuidle driver (Sudeep Holla).

   - Add a new device links flag to the driver core to make links go
     away automatically on supplier driver removal (Vivek Gautam).

   - Eliminate potential race condition between system-wide power
     management transitions and system shutdown (Pingfan Liu).

   - Add a quirk to save NVS memory on system suspend for the ASUS 1025C
     laptop (Willy Tarreau).

   - Make more systems use suspend-to-idle (instead of ACPI S3) by
     default (Tristian Celestin).

   - Get rid of stack VLA usage in the low-level hibernation code on
     64-bit x86 (Kees Cook).

   - Fix error handling in the hibernation core and mark an expected
     fall-through switch in it (Chengguang Xu, Gustavo Silva).

   - Extend the generic power domains (genpd) framework to support
     attaching a device to a power domain by name (Ulf Hansson).

   - Fix device reference counting and user limits initialization in the
     devfreq core (Arvind Yadav, Matthias Kaehlcke).

   - Fix a few issues in the rk3399_dmc devfreq driver and improve its
     documentation (Enric Balletbo i Serra, Lin Huang, Nick Milner).

   - Drop a redundant error message from the exynos-ppmu devfreq driver
     (Markus Elfring)"

* tag 'pm-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (35 commits)
  PM / reboot: Eliminate race between reboot and suspend
  PM / hibernate: Mark expected switch fall-through
  cpufreq: intel_pstate: Ignore turbo active ratio in HWP
  cpufreq: Fix a circular lock dependency problem
  cpu/hotplug: Add a cpus_read_trylock() function
  x86/power/hibernate_64: Remove VLA usage
  cpufreq: trace frequency limits change
  cpufreq: intel_pstate: Show different max frequency with turbo 3 and HWP
  cpufreq: pcc-cpufreq: Disable dynamic scaling on many-CPU systems
  cpufreq: qcom-kryo: Silently error out on EPROBE_DEFER
  cpufreq / CPPC: Add cpuinfo_cur_freq support for CPPC
  cpufreq: armada-37xx: Add AVS support
  dt-bindings: marvell: Add documentation for the Armada 3700 AVS binding
  PM / devfreq: rk3399_dmc: Fix duplicated opp table on reload.
  PM / devfreq: Init user limits from OPP limits, not viceversa
  PM / devfreq: rk3399_dmc: fix spelling mistakes.
  PM / devfreq: rk3399_dmc: do not print error when get supply and clk defer.
  dt-bindings: devfreq: rk3399_dmc: move interrupts to be optional.
  PM / devfreq: rk3399_dmc: remove wait for dcf irq event.
  dt-bindings: clock: add rk3399 DDR3 standard speed bins.
  ...
2018-08-14 13:12:24 -07:00
Rafael J. Wysocki 17bc3432e3 Merge branches 'pm-core', 'pm-domains', 'pm-sleep', 'acpi-pm' and 'pm-cpuidle'
Merge changes in the PM core, system-wide PM infrastructure, generic
power domains (genpd) framework, ACPI PM infrastructure and cpuidle
for 4.19.

* pm-core:
  driver core: Add flag to autoremove device link on supplier unbind
  driver core: Rename flag AUTOREMOVE to AUTOREMOVE_CONSUMER

* pm-domains:
  PM / Domains: Introduce dev_pm_domain_attach_by_name()
  PM / Domains: Introduce option to attach a device by name to genpd
  PM / Domains: dt: Add a power-domain-names property

* pm-sleep:
  PM / reboot: Eliminate race between reboot and suspend
  PM / hibernate: Mark expected switch fall-through
  x86/power/hibernate_64: Remove VLA usage
  PM / hibernate: cast PAGE_SIZE to int when comparing with error code

* acpi-pm:
  ACPI / PM: save NVS memory for ASUS 1025C laptop
  ACPI / PM: Default to s2idle in all machines supporting LP S0

* pm-cpuidle:
  ARM: cpuidle: silence error on driver registration failure
2018-08-14 09:48:10 +02:00
Mark Brown d22d59362b
Merge branch 'regulator-4.19' into regulator-next 2018-08-10 17:31:24 +01:00
Olof Johansson afd3e3dad6 Qualcomm ARM64 Updates for v4.19 - Part 2
* Add thermal nodes for MSM8996 and SDM845
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Merge tag 'qcom-arm64-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/dt

Qualcomm ARM64 Updates for v4.19 - Part 2

* Add thermal nodes for MSM8996 and SDM845

* tag 'qcom-arm64-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: (21 commits)
  arm64: dts: sdm845: Add tsens nodes
  arm64: dts: msm8996: thermal: Initialise via DT and add second controller
  soc: qcom: rmtfs-mem: fix memleak in probe error paths
  soc: qcom: llc-slice: Add missing MODULE_LICENSE()
  drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type()
  drivers: qcom: rpmh-rsc: fix the loop index check in get_req_from_tcs
  firmware: qcom: scm: add a dummy qcom_scm_assign_mem()
  drivers: qcom: rpmh-rsc: Check cmd_db_ready() to help children
  drivers: qcom: rpmh-rsc: allow active requests from wake TCS
  drivers: qcom: rpmh: add support for batch RPMH request
  drivers: qcom: rpmh: allow requests to be sent asynchronously
  drivers: qcom: rpmh: cache sleep/wake state requests
  drivers: qcom: rpmh-rsc: allow invalidation of sleep/wake TCS
  drivers: qcom: rpmh-rsc: write sleep/wake requests to TCS
  drivers: qcom: rpmh: add RPMH helper functions
  drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE
  dt-bindings: introduce RPMH RSC bindings for Qualcomm SoCs
  drivers: qcom: rpmh-rsc: add RPMH controller for QCOM SoCs
  drivers: soc: Add LLCC driver
  dt-bindings: Documentation for qcom, llcc
  ...
2018-08-04 11:02:54 -07:00
Olof Johansson 29ed45fff0 - add pmic wrapper support for mt6797
- pmic wrapper fix chiper init
 - add support for pmic mt6351
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Merge tag 'v4.18-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/drivers

- add pmic wrapper support for mt6797
- pmic wrapper fix chiper init
- add support for pmic mt6351

* tag 'v4.18-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
  soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
  soc: mediatek: pwrap: fix cipher init setting error
  dt-bindings: pwrap: mediatek: add pwrap support for MT6797

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-26 13:08:01 -07:00
Olof Johansson 1ca8c0a763 Various updates to soc/fsl for 4.19
Moves DPAA2 DPIO driver from staging to fsl/soc
 Adds multiple-pin support to QE gpio driver
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Merge tag 'soc-fsl-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into next/drivers

Various updates to soc/fsl for 4.19

Moves DPAA2 DPIO driver from staging to fsl/soc
Adds multiple-pin support to QE gpio driver

* tag 'soc-fsl-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: cleanup Kconfig menu
  soc: fsl: dpio: Convert DPIO documentation to .rst
  staging: fsl-mc: Remove remaining files
  staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
  staging: fsl-dpaa2: eth: move generic FD defines to DPIO
  soc: fsl: qe: gpio: Add qe_gpio_set_multiple

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-26 00:12:56 -07:00
Olof Johansson 92f06c384b Allwinner drivers changes for 4.19
There's been work for this release cycles in both the SRAM controller
 driver in order to support more SoCs, as part of our VPU work, but also to
 enable the EMAC on the A64 (that needs to poke at registers within the same
 register space).
 
 Some work has been needed too to represent the bus to the display engine
 controllers that all need an SRAM to be mapped to the CPU to be able to
 access those controllers' registers.
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Merge tag 'sunxi-drivers-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/drivers

Allwinner drivers changes for 4.19

There's been work for this release cycles in both the SRAM controller
driver in order to support more SoCs, as part of our VPU work, but also to
enable the EMAC on the A64 (that needs to poke at registers within the same
register space).

Some work has been needed too to represent the bus to the display engine
controllers that all need an SRAM to be mapped to the CPU to be able to
access those controllers' registers.

* tag 'sunxi-drivers-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  soc: sunxi: Add the A13, A23 and H3 system control compatibles
  drivers: soc: sunxi: Add support for the C1 SRAM region
  dt-bindings: sram: sunxi: Populate valid sections compatibles
  dt-bindings: sram: sunxi: Add A13, A20, A23 and H3 dedicated bindings
  soc: sunxi: sram: Add dt match for the A10 system-control compatible
  dt-bindings: sram: sunxi: Introduce new A10 binding for system-control
  bus: add bus driver for accessing Allwinner A64 DE2
  dt-bindings: add binding for the Allwinner A64 DE2 bus
  soc: sunxi: sram: Add updated compatible string for A64 system control
  dt-bindings: sram: Rename A64 SRAM controller compatible
  soc: sunxi: export a regmap for EMAC clock reg on A64

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-26 00:09:43 -07:00
Olof Johansson d7e8323043 Qualcomm ARM Based Driver Updates for v4.19
* Add Qualcomm LLCC driver
 * Add Qualcomm RPMH controller
 * Fix memleak in Qualcomm RMTFS
 * Add dummy qcom_scm_assign_mem()
 * Fix check for global partition in SMEM
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Merge tag 'qcom-drivers-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers

Qualcomm ARM Based Driver Updates for v4.19

* Add Qualcomm LLCC driver
* Add Qualcomm RPMH controller
* Fix memleak in Qualcomm RMTFS
* Add dummy qcom_scm_assign_mem()
* Fix check for global partition in SMEM

* tag 'qcom-drivers-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  soc: qcom: rmtfs-mem: fix memleak in probe error paths
  soc: qcom: llc-slice: Add missing MODULE_LICENSE()
  drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type()
  drivers: qcom: rpmh-rsc: fix the loop index check in get_req_from_tcs
  firmware: qcom: scm: add a dummy qcom_scm_assign_mem()
  drivers: qcom: rpmh-rsc: Check cmd_db_ready() to help children
  drivers: qcom: rpmh-rsc: allow active requests from wake TCS
  drivers: qcom: rpmh: add support for batch RPMH request
  drivers: qcom: rpmh: allow requests to be sent asynchronously
  drivers: qcom: rpmh: cache sleep/wake state requests
  drivers: qcom: rpmh-rsc: allow invalidation of sleep/wake TCS
  drivers: qcom: rpmh-rsc: write sleep/wake requests to TCS
  drivers: qcom: rpmh: add RPMH helper functions
  drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE
  dt-bindings: introduce RPMH RSC bindings for Qualcomm SoCs
  drivers: qcom: rpmh-rsc: add RPMH controller for QCOM SoCs
  drivers: soc: Add LLCC driver
  dt-bindings: Documentation for qcom, llcc
  soc: qcom: smem: Correct check for global partition

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-26 00:03:25 -07:00
Li Yang 4625210899 soc: fsl: cleanup Kconfig menu
Put NXP/Freescale QorIQ SoC drivers under a menu and make the item
naming more aligned.

Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-07-24 16:19:16 -05:00
Roy Pledge d8e516bac7 soc: fsl: dpio: Convert DPIO documentation to .rst
Convert the Datapath I/O documentation to .rst format
and move to the Documation/networking/dpaa2 directory

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-07-24 16:18:56 -05:00
Roy Pledge c89105c9b3 staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
Move the NXP DPIO (Datapath I/O Driver) out of the
drivers/staging directory and into the drivers/soc/fsl directory.

The DPIO driver enables access to Queue and Buffer Manager (QBMAN)
hardware on NXP DPAA2 devices. This is a prerequisite to moving the
DPAA2 Ethernet driver out of staging.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-07-24 16:18:55 -05:00
Joakim Tjernlund 1c0b7df5d3 soc: fsl: qe: gpio: Add qe_gpio_set_multiple
This cousin to gpio-mpc8xxx was lacking a multiple pins method,
add one.

Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Reviewed-by: Qiang Zhao <qiang.zhao@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-07-24 16:18:22 -05:00
Olof Johansson 94dee3861f TI AM654 support for v4.19 merge window
This branch adds initial support for new Texas Instruments AM654
 quad core A53 ARMv8 SoC. It's the first device for TI K3 multicore SoC
 architecture.
 
 Initially only basic devices are configured, support for more devices
 will follow later on. And many of the internal devices familiar from
 earlier TI SoCs should work with existing kernel device drivers.
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Merge tag 'am654-for-v4.19-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

TI AM654 support for v4.19 merge window

This branch adds initial support for new Texas Instruments AM654
quad core A53 ARMv8 SoC. It's the first device for TI K3 multicore SoC
architecture.

Initially only basic devices are configured, support for more devices
will follow later on. And many of the internal devices familiar from
earlier TI SoCs should work with existing kernel device drivers.

* tag 'am654-for-v4.19-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  arm64: dts: ti: Add support for AM654 EVM base board
  soc: ti: Add Support for AM654 SoC config option
  arm64: dts: ti: Add Support for AM654 SoC
  arm64: Add support for TI's K3 Multicore SoC architecture
  dt-bindings: arm: ti: Add bindings for AM654 SoC

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-21 15:06:03 -07:00
Olof Johansson 1df88c683e i.MX drivers update for 4.19:
- Handle i.MX6SL chip errata ERR006287 in the safest possible way by
    keeping the DISP domain always-on, because Upon resuming from power
    gating, the modules in the display power domain (eLCDIF, EPDC, PXP
    and SPDC) might fail to perform register reads correctly.
  - Use GENPD_FLAG_ALWAYS_ON flag for i.MX6QP PU ERR009619 handling.
    It is functionally identical to the exsiting implementation but
    simpler and slightly faster.
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Merge tag 'imx-drivers-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/drivers

i.MX drivers update for 4.19:
 - Handle i.MX6SL chip errata ERR006287 in the safest possible way by
   keeping the DISP domain always-on, because Upon resuming from power
   gating, the modules in the display power domain (eLCDIF, EPDC, PXP
   and SPDC) might fail to perform register reads correctly.
 - Use GENPD_FLAG_ALWAYS_ON flag for i.MX6QP PU ERR009619 handling.
   It is functionally identical to the exsiting implementation but
   simpler and slightly faster.

* tag 'imx-drivers-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
  soc: imx: gpc: Disable 6sl display power gating for ERR006287

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-21 15:05:16 -07:00
Olof Johansson b598b3aaf9 Second Round of Renesas ARM Based SoC Updates for v4.19
* Always enable ARCH_TIMER on SoCs with A7 or A15
 
   All such SoCs have ARCH_TIMER so there is no need for it to be optional.
   This allows clean-up which is included in this change.
 
 * Do not compile r8a7779_platform_cpu_kill when it is unused
 
   This avoids a warning by shuffling code into an existing #ifdef
   r8a7779 is the R-Car H1 SoC
 
 * Add SMP enabler driver for the RZ/N1D (r9a06g032) SoC
 
   This is to allow SMP to be enabled via DT on the r9a06g032
 
 * Stop compiling headsmp-apmu for non-SMP configs
 
   This is a minor clean-up allowing removal of an #ifdef
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Merge tag 'renesas-arm-soc2-for-v4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Second Round of Renesas ARM Based SoC Updates for v4.19

* Always enable ARCH_TIMER on SoCs with A7 or A15

  All such SoCs have ARCH_TIMER so there is no need for it to be optional.
  This allows clean-up which is included in this change.

* Do not compile r8a7779_platform_cpu_kill when it is unused

  This avoids a warning by shuffling code into an existing #ifdef
  r8a7779 is the R-Car H1 SoC

* Add SMP enabler driver for the RZ/N1D (r9a06g032) SoC

  This is to allow SMP to be enabled via DT on the r9a06g032

* Stop compiling headsmp-apmu for non-SMP configs

  This is a minor clean-up allowing removal of an #ifdef

* tag 'renesas-arm-soc2-for-v4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
  ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
  soc: r9a06g032: don't build SMP files for non-SMP config
  ARM: shmobile: Add the R9A06G032 SMP enabler driver
  ARM: shmobile: rcar-gen2: Stop compiling headsmp-apmu on !SMP

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-21 14:19:37 -07:00
Johan Hovold 78ee559d7f soc: qcom: rmtfs-mem: fix memleak in probe error paths
Make sure to set the mem device release callback before calling
put_device() in a couple of probe error paths so that the containing
object also gets freed.

Fixes: d1de6d6c63 ("soc: qcom: Remote filesystem memory driver")
Cc: stable <stable@vger.kernel.org>     # 4.15
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 14:53:47 -05:00
Niklas Cassel 4da3b0452b soc: qcom: llc-slice: Add missing MODULE_LICENSE()
Add missing MODULE_LICENSE().
According to the SPDX-License-Identifier, the license is GPL v2.

Fixes the following warning:
WARNING: modpost: missing MODULE_LICENSE() in drivers/soc/qcom/llcc-slice.o

Fixes: a3134fb ("drivers: soc: Add LLCC driver")
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 14:50:45 -05:00
Raju P.L.S.S.S.N 6c805adf17 drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type()
The patch fixes the bug reported by Dan Carpenter.
It removes the unnecessary err check for ‘tcs’ reported by
static checker warning:

drivers/soc/qcom/rpmh-rsc.c:111 tcs_invalidate()
warn: 'tcs' isn't an ERR_PTR
See also:
drivers/soc/qcom/rpmh-rsc.c:178 get_tcs_for_msg() warn: 'tcs' isn't
an ERR_PTR
drivers/soc/qcom/rpmh-rsc.c:180 get_tcs_for_msg() warn: 'tcs' isn't
an ERR_PTR

https://www.spinics.net/lists/linux-soc/msg04624.html

Fixes: 9a3afcf ("drivers: qcom: rpmh-rsc: allow invalidation
of sleep/wake TCS")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:47:22 -05:00
Raju P.L.S.S.S.N efa1c257b3 drivers: qcom: rpmh-rsc: fix the loop index check in get_req_from_tcs
get_req_from_tcs introduced in patch[1] returns tcs_request from
tcs_group. The size of tcs (of type - tcs_group) array in rsc_drv is
TCS_TYPE_NR. So the loop index needs to be iterated up to TCS_TYPE_NR only.

[1] https://patchwork.kernel.org/patch/10477547/

Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:43:38 -05:00
Douglas Anderson fdd102b52c drivers: qcom: rpmh-rsc: Check cmd_db_ready() to help children
Children of RPMh will need access to cmd_db.  Rather than having each
child have code to check if cmd_db is ready let's add the check to
RPMh.

With this we'll be able to remove this boilerplate code from
clk-rpmh.c and qcom-rpmh-regulator.c.  Neither of these files has
landed upstream yet but patches are pretty far along.

===
This code is based upon v11 of Lina and Raju's RPMh series.

Suggested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:34:00 -05:00
Lina Iyer 2de4b8d33e drivers: qcom: rpmh-rsc: allow active requests from wake TCS
Some RSCs may only have sleep and wake TCS, i.e, there is no dedicated
TCS for active mode request, but drivers may still want to make active
requests from these RSCs. In such cases re-purpose the wake TCS to send
active state requests.

The requirement for this is that the driver is aware that the wake TCS
is being repurposed to send active request, hence the sleep and wake
TCSes be invalidated before the active request is sent.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:33:49 -05:00
Lina Iyer c8790cb6da drivers: qcom: rpmh: add support for batch RPMH request
Platform drivers need make a lot of resource state requests at the same
time, say, at the start or end of an usecase. It can be quite
inefficient to send each request separately. Instead they can give the
RPMH library a batch of requests to be sent and wait on the whole
transaction to be complete.

rpmh_write_batch() is a blocking call that can be used to send multiple
RPMH command sets. Each RPMH command set is set asynchronously and the
API blocks until all the command sets are complete and receive their
tx_done callbacks.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:33:36 -05:00
Lina Iyer 564b5e24cc drivers: qcom: rpmh: allow requests to be sent asynchronously
Platform drivers that want to send a request but do not want to block
until the RPMH request completes have now a new API -
rpmh_write_async().

The API allocates memory and send the requests and returns the control
back to the platform driver. The tx_done callback from the controller is
handled in the context of the controller's thread and frees the
allocated memory. This API allows RPMH requests from atomic contexts as
well.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:33:27 -05:00
Lina Iyer 600513dfee drivers: qcom: rpmh: cache sleep/wake state requests
Active state requests are sent immediately to the RSC controller, while
sleep and wake state requests are cached in this driver to avoid taxing
the RSC controller repeatedly. The cached values will be sent to the
controller when the rpmh_flush() is called.

Generally, flushing is a system PM activity and may be called from the
system PM drivers when the system is entering suspend or deeper sleep
modes during cpuidle.

Also allow invalidating the cached requests, so they may be re-populated
again.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
[rplsssn: remove unneeded semicolon, address line over 80chars error]
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:33:12 -05:00
Lina Iyer 9a3afcfbc0 drivers: qcom: rpmh-rsc: allow invalidation of sleep/wake TCS
Allow sleep and wake commands to be cleared from the respective TCSes,
so that they can be re-populated.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:32:59 -05:00
Lina Iyer fa460e453a drivers: qcom: rpmh-rsc: write sleep/wake requests to TCS
Sleep and wake requests are sent when the application processor
subsystem of the SoC is entering deep sleep states like in suspend.
These requests help lower the system power requirements when the
resources are not in use.

Sleep and wake requests are written to the TCS slots but are not
triggered at the time of writing. The TCS are triggered by the firmware
after the last of the CPUs has executed its WFI. Since these requests
may come in different batches of requests, it is the job of this
controller driver to find and arrange the requests into the available
TCSes.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:32:49 -05:00
Lina Iyer c1038456b0 drivers: qcom: rpmh: add RPMH helper functions
Sending RPMH requests and waiting for response from the controller
through a callback is common functionality across all platform drivers.
To simplify drivers, add a library functions to create RPMH client and
send resource state requests.

rpmh_write() is a synchronous blocking call that can be used to send
active state requests.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:32:40 -05:00
Lina Iyer fc087fe5a4 drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE
Log sent RPMH requests and interrupt responses in FTRACE.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
[rplsssn@codeaurora.org: rebase to v4.18-rc1 & fix merge conflict]
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:32:31 -05:00
Lina Iyer 658628e7ef drivers: qcom: rpmh-rsc: add RPMH controller for QCOM SoCs
Add controller driver for QCOM SoCs that have hardware based shared
resource management. The hardware IP known as RSC (Resource State
Coordinator) houses multiple Direct Resource Voter (DRV) for different
execution levels. A DRV is a unique voter on the state of a shared
resource. A Trigger Control Set (TCS) is a bunch of slots that can house
multiple resource state requests, that when triggered will issue those
requests through an internal bus to the Resource Power Manager Hardened
(RPMH) blocks. These hardware blocks are capable of adjusting clocks,
voltages, etc. The resource state request from a DRV are aggregated
along with state requests from other processors in the SoC and the
aggregate value is applied on the resource.

Some important aspects of the RPMH communication -
- Requests are <addr, value> with some header information
- Multiple requests (upto 16) may be sent through a TCS, at a time
- Requests in a TCS are sent in sequence
- Requests may be fire-n-forget or completion (response expected)
- Multiple TCS from the same DRV may be triggered simultaneously
- Cannot send a request if another request for the same addr is in
  progress from the same DRV
- When all the requests from a TCS are complete, an IRQ is raised
- The IRQ handler needs to clear the TCS before it is available for
  reuse
- TCS configuration is specific to a DRV
- Platform drivers may use DRV from different RSCs to make requests

Resource state requests made when CPUs are active are called 'active'
state requests. Requests made when all the CPUs are powered down (idle
state) are called 'sleep' state requests. They are matched by a
corresponding 'wake' state requests which puts the resources back in to
previously requested active state before resuming any CPU. TCSes are
dedicated for each type of requests. Active mode TCSes (AMC) are used to
send requests immediately to the resource, while control TCS are used to
provide specific information to the controller. Sleep and Wake TCS send
sleep and wake requests, after and before the system halt respectively.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:32:06 -05:00
Rishabh Bhatnagar a3134fb09e drivers: soc: Add LLCC driver
LLCC (Last Level Cache Controller) provides additional cache memory
in the system. LLCC is partitioned into multiple slices and each
slice gets its own priority, size, ID and other config parameters.
LLCC driver programs these parameters for each slice. Clients that
are assigned to use LLCC need to get information such size & ID of the
slice they get and activate or deactivate the slice as needed. LLCC driver
provides API for the clients to perform these operations.

Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:31:35 -05:00
Bjorn Andersson 0b65c59e3a soc: qcom: smem: Correct check for global partition
The moved check for the global partition ended up in the wrong place and I
failed to spot this in my review. This moves it to the correct place.

Fixes: 11d2e7edac ("soc: qcom: smem: check sooner in qcom_smem_set_global_partition()")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-07-21 13:31:13 -05:00
Arnd Bergmann c83e9c4873 soc: r9a06g032: don't build SMP files for non-SMP config
Without CONFIG_SMP, we get a build failure:

In file included from include/linux/byteorder/little_endian.h:5,
                 from arch/arm/include/uapi/asm/byteorder.h:22,
                 from include/asm-generic/bitops/le.h:6,
                 from arch/arm/include/asm/bitops.h:342,
                 from include/linux/bitops.h:18,
                 from include/linux/kernel.h:11,
                 from include/asm-generic/bug.h:18,
                 from arch/arm/include/asm/bug.h:60,
                 from include/linux/bug.h:5,
                 from include/linux/io.h:23,
                 from drivers/soc/renesas/r9a06g032-smp.c:11:
drivers/soc/renesas/r9a06g032-smp.c: In function 'r9a06g032_smp_boot_secondary':
drivers/soc/renesas/r9a06g032-smp.c:43:21: error: 'secondary_startup' undeclared (first use in this function)
  writel(__pa_symbol(secondary_startup), cpu_bootaddr);
                     ^~~~~~~~~~~~~~~~~

This makes the compilation of that file conditional on SMP support.
It would probably be better for consistency to leave that file
in arch/arm/mach-shmobile/, matching what we do for all other smp
operations.

Fixes: cde4f86f9249 ("arm: shmobile: Add the R9A06G032 SMP enabler driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-07-20 13:44:09 +02:00
Michel Pollet 7416d44113 ARM: shmobile: Add the R9A06G032 SMP enabler driver
The Renesas R9A06G032 second CA7 is parked in a ROM pen at boot time, it
equires a special enable method to get it started.

Signed-off-by: Michel Pollet <michel.pollet@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-07-20 13:44:04 +02:00
Olof Johansson 8b369c0073 i.MX fixes for 4.18, round 3:
- Restrict GPC driver on register range that is accessible by regmap,
    so that we can avoid user space from triggering imprecise external
    abort exception.
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Merge tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.18, round 3:
 - Restrict GPC driver on register range that is accessible by regmap,
   so that we can avoid user space from triggering imprecise external
   abort exception.

* tag 'imx-fixes-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpc: restrict register range for regmap access

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-19 15:09:59 -07:00
Maxime Ripard 7377330a1e
soc: sunxi: Add the A13, A23 and H3 system control compatibles
The A13, A23 and H3 have variations of the system controls, in part due to
the SRAM that are available (and can be mapped) in the SoC.

In order to make it future proof, let's add compatibles for these SoCs in
the driver.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:39:12 +02:00
Anson Huang de2d9b5284 soc: imx: gpc: restrict register range for regmap access
GPC registers are NOT continuous, some registers are
reserved and accessing them from userspace will trigger
external abort, add regmap register access table to
avoid below abort:

root@imx6slevk:~# cat /sys/kernel/debug/regmap/20dc000.gpc/registers
[  108.480477] Unhandled fault: imprecise external abort (0x1406) at 0xb6db5004
[  108.487985] pgd = 42b54bfd
[  108.490741] [b6db5004] *pgd=ba1b7831
[  108.494386] Internal error: : 1406 [#1] SMP ARM
[  108.498943] Modules linked in:
[  108.502043] CPU: 0 PID: 389 Comm: cat Not tainted 4.18.0-rc1-00074-gc9f1f60-dirty #482
[  108.509982] Hardware name: Freescale i.MX6 SoloLite (Device Tree)
[  108.516123] PC is at regmap_mmio_read32le+0x20/0x24
[  108.521031] LR is at regmap_mmio_read+0x40/0x60
[  108.525586] pc : [<c059cf74>]    lr : [<c059d1ac>]    psr: 20060093
[  108.531875] sp : eccf1d98  ip : eccf1da8  fp : eccf1da4
[  108.537122] r10: ec2d3800  r9 : eccf1f60  r8 : ecfc0000
[  108.542370] r7 : eccf1e2c  r6 : eccf1e2c  r5 : 00000028  r4 : ec338e00
[  108.548920] r3 : 00000000  r2 : eccf1e2c  r1 : f0980028  r0 : 00000000
[  108.555474] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  108.562720] Control: 10c5387d  Table: acf4004a  DAC: 00000051
[  108.568491] Process cat (pid: 389, stack limit = 0xd4318a65)
[  108.574174] Stack: (0xeccf1d98 to 0xeccf2000)

Fixes: 721cabf6c6 ("soc: imx: move PGC handling to a new GPC driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-19 10:24:00 +08:00
Nishanth Menon a869b7b30d soc: ti: Add Support for AM654 SoC config option
Add option to build AM6 SoC specific components

Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-07-18 11:48:36 -07:00
Leonard Crestez 69c04aee34 soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
This is functionally identical but simpler and slightly faster.

The PU domain is turned on at boot time and never turned off. In the
current implementation the pm core will repeatedly call power_off when
the domain is unused and get -EBUSY back. If the domain is marked as
"always on" instead the pm core won't even attempt to turn it off.

In theory on 6qp it is safe to turn PU off in suspend, however that is
best accomplished with a new core flag.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-07-17 14:12:14 +08:00
Argus Lin 00673189b8 soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
MT6351 is a new power management IC and it is used for mt6797 SoCs. To define
mt6351_regs for pmic register mapping and pmic_mt6351 for
accessing register.

Signed-off-by: Argus Lin <argus.lin@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2018-07-16 15:50:17 +02:00
Argus Lin 8e62ac4bad soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
mt6797 is a highly integrated SoCs, it uses mt6351 for power management.
This patch adds pwrap driver to access mt6351. Pwrap of mt6797 support
dynamic priority meichanism, sequence monitor and starvation mechanism
to make transaction more reliable.

A big change from V4 to V5 is we remove INT1 interrupt declaration since
it is only for debug purpose. The PWRAP_RDDMY, RESET and DCM can use legacy
setting, it is backwards compatible. The new caps flag declaration is not
needed, just remove it.

Signed-off-by: Argus Lin <argus.lin@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2018-07-16 15:50:17 +02:00
Argus Lin cd760b1cd7 soc: mediatek: pwrap: fix cipher init setting error
PWRAP_DEW_CIPHER_LOAD and PWRAP_DEW_CIPHER_START only exist at
PMIC_mt6397 datasheet. We fix it before merge PMIC_mt6351 driver.

Fixes: 5ae48040aa ("soc: mediatek: PMIC wrap: add mt6323 slave support")

Signed-off-by: Argus Lin <argus.lin@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2018-07-16 15:50:17 +02:00
Olof Johansson edc07c0012 SoC updates for omaps for v4.19 merge window
These changes are mostly PM related changes for am335x and
 am437x to support RTC only suspend mode. Some of the clock
 and driver related chances are still pending so it's not
 yet fully functional.
 
 Also included is a change for PM debug sysfs entry to use
 DEFINE_SHOW_ATTRIBUTE.
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Merge tag 'omap-for-v4.19/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC updates for omaps for v4.19 merge window

These changes are mostly PM related changes for am335x and
am437x to support RTC only suspend mode. Some of the clock
and driver related chances are still pending so it's not
yet fully functional.

Also included is a change for PM debug sysfs entry to use
DEFINE_SHOW_ATTRIBUTE.

* tag 'omap-for-v4.19/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: sleep33/43xx: Add RTC-Mode support
  ARM: OMAP2+: sleep33/43xx: Make sleep actions configurable
  ARM: OMAP2+: reuse DEFINE_SHOW_ATTRIBUTE() macro
  ARM: hwmod: RTC: Don't assume lock/unlock will be called with irq enabled

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-07-14 14:45:14 -07:00