Commit Graph

633586 Commits

Author SHA1 Message Date
Olof Johansson
84f1f0c199 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.
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Merge tag 'tegra-for-4.10-bus' of 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>
2016-11-18 18:32:57 -08:00
Olof Johansson
857ff3fddc reset: Add Tegra BPMP reset driver
This contains a patch which implements a reset driver using the services
 provided by the BPMP firmware (via the MRQ_RESET request).
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Merge tag 'tegra-for-4.10-reset' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

reset: Add Tegra BPMP reset driver

This contains a patch which implements a reset driver using the services
provided by the BPMP firmware (via the MRQ_RESET request).

* tag 'tegra-for-4.10-reset' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  reset: Add Tegra BPMP reset driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 18:31:56 -08:00
Olof Johansson
e40719dd01 firmware: Add Tegra IVC and BPMP support
IVC is an inter-processor communication protocol that uses shared memory
 to exchange data between processors. The BPMP driver makes use of this
 to communicate with the Boot and Power Management Processor (BPMP) and
 uses an additional hardware synchronization primitive from the HSP block
 to signal availability of new data (doorbell).
 
 Firmware running on the BPMP implements a number of services such as the
 control of clocks and resets within the system, or the ability to ungate
 or gate power partitions.
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Merge tag 'tegra-for-4.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

firmware: Add Tegra IVC and BPMP support

IVC is an inter-processor communication protocol that uses shared memory
to exchange data between processors. The BPMP driver makes use of this
to communicate with the Boot and Power Management Processor (BPMP) and
uses an additional hardware synchronization primitive from the HSP block
to signal availability of new data (doorbell).

Firmware running on the BPMP implements a number of services such as the
control of clocks and resets within the system, or the ability to ungate
or gate power partitions.

* tag 'tegra-for-4.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  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

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 18:28:14 -08:00
Olof Johansson
dd3eedd338 mailbox: Add Tegra HSP driver
This contains the device tree bindings and a driver for the Tegra HSP, a
 hardware block that provides hardware synchronization primitives and is
 the foundation for inter-processor communication between CPU and BPMP.
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Merge tag 'tegra-for-4.10-mailbox' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

mailbox: Add Tegra HSP driver

This contains the device tree bindings and a driver for the Tegra HSP, a
hardware block that provides hardware synchronization primitives and is
the foundation for inter-processor communication between CPU and BPMP.

* tag 'tegra-for-4.10-mailbox' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  mailbox: tegra-hsp: Use after free in tegra_hsp_remove_doorbells()
  mailbox: Add Tegra HSP driver
  dt-bindings: mailbox: Add Tegra HSP binding
  soc/tegra: Add Tegra186 support

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 18:23:06 -08:00
Olof Johansson
78d375b97e Reset controller changes for v4.10
- remove obsolete STiH41[56] platform support
 - add Oxford Semiconductor OX820 support
 - add reset index include files for OX810SE and OX820
 - make drivers with boolean Kconfig options explicitly
   non-modular
 - allow shared pulsed resets via reset_control_reset, which
   in this case means that the reset must have been triggered
   once, but possibly earlier, after the function returns, and
   is never triggered again for the lifetime of the reset
   control
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Merge tag 'reset-for-4.10' of git://git.pengutronix.de/git/pza/linux into next/drivers

Reset controller changes for v4.10

- remove obsolete STiH41[56] platform support
- add Oxford Semiconductor OX820 support
- add reset index include files for OX810SE and OX820
- make drivers with boolean Kconfig options explicitly
  non-modular
- allow shared pulsed resets via reset_control_reset, which
  in this case means that the reset must have been triggered
  once, but possibly earlier, after the function returns, and
  is never triggered again for the lifetime of the reset
  control

* tag 'reset-for-4.10' of git://git.pengutronix.de/git/pza/linux:
  reset: allow using reset_control_reset with shared reset
  reset: lpc18xx: make it explicitly non-modular
  reset: zynq: make it explicitly non-modular
  reset: sunxi: make it explicitly non-modular
  reset: socfpga: make it explicitly non-modular
  reset: berlin: make it explicitly non-modular
  dt-bindings: reset: oxnas: Update for OX820
  dt-bindings: reset: oxnas: Add include file with reset indexes
  reset: oxnas: Add OX820 support
  reset: sti: softreset: Remove obsolete platforms from dt binding doc.
  reset: sti: Remove STiH415/6 reset support

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 16:17:45 -08:00
Olof Johansson
555b2b5d25 Drivers for 4.10:
- few fixes for the memory drivers
  - minimal security module driver
  - support for the Secure SRAM
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Merge tag 'at91-ab-4.10-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers

Drivers for 4.10:

 - few fixes for the memory drivers
 - minimal security module driver
 - support for the Secure SRAM

* tag 'at91-ab-4.10-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  misc: sram: add Atmel securam support
  misc: sram: document new compatible
  ARM: at91: add secumod register definitions
  Documentation: dt: atmel-at91: Document secumod bindings
  memory: atmel-sdramc: use builtin_platform_driver to simplify the code
  memory: atmel-ebi: fix return value check in at91_ebi_dev_disable()

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 09:53:55 -08:00
Thierry Reding
dc606c5205 reset: Add Tegra BPMP reset driver
This driver uses the services provided by the BPMP firmware driver to
implement a reset driver based on the MRQ_RESET request.

Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:34:56 +01:00
Thierry Reding
801fc02214 Merge branch 'for-4.10/firmware' into for-4.10/reset 2016-11-18 14:34:46 +01:00
Stephen Warren
b704ed8095 dt-bindings: firmware: Allow child nodes inside the Tegra BPMP
The BPMP implements some services which must be represented by separate
nodes. For example, it can provide access to certain I2C controllers,
and the I2C bindings represent each I2C controller as a device tree
node. Update the binding to describe how the BPMP supports this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
[treding@nvidia.com: renamed bpmp-i2c to i2c as per Rob]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:33:44 +01:00
Stephen Warren
ad7cb19824 dt-bindings: Add power domains to Tegra BPMP firmware
The Tegra186 BPMP is also a provider of power domains. Enhance the
device tree binding to describe this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:33:43 +01:00
Thierry Reding
983de5f971 firmware: tegra: Add BPMP support
The Boot and Power Management Processor (BPMP) is a co-processor found
on Tegra SoCs. It is designed to handle the early stages of the boot
process and offload power management tasks (such as clocks, resets,
powergates, ...) as well as system control services.

Compared to the ARM SCPI, the services provided by BPMP are message-
based rather than method-based. The BPMP firmware driver provides the
services to transmit data to and receive data from the BPMP. Users can
also register a Message ReQuest (MRQ), for which a service routine will
be run when a corresponding event is received from the firmware.

A set of messages, called the BPMP ABI, are specified for a number of
different services provided by the BPMP (such as clocks or resets).

Based on work by Sivaram Nair <sivaramn@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:33:43 +01:00
Thierry Reding
ca791d7f42 firmware: tegra: Add IVC library
The Inter-VM communication (IVC) is a communication protocol which is
designed for interprocessor communication (IPC) or the communication
between the hypervisor and the virtual machine with a guest OS.

Message channels are used to communicate between processors. They are
backed by DRAM or SRAM, so care must be taken to maintain coherence of
data.

The IVC library maintains memory-based descriptors for the transmission
and reception channels as well as the data coherence of the counter and
payload. Clients, such as the driver for the BPMP firmware, can use the
library to exchange messages with remote processors.

Based on work by Peter Newman <pnewman@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:33:42 +01:00
Joseph Lo
d55865608f dt-bindings: firmware: Add bindings for Tegra BPMP
The Boot and Power Management Processor (BPMP) is a co-processor found
in Tegra SoCs. It is designed to handle the early stages of the boot
process as well as to offload power management tasks (such as clocks,
resets, powergates, ...).

The binding document defines the resources that are used by the BPMP
firmware, which implements the interprocessor communication (IPC)
between the CPU and the BPMP.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:33:41 +01:00
Thierry Reding
3dc8367499 Merge branch 'for-4.10/mailbox' into for-4.10/firmware 2016-11-18 14:33:29 +01:00
Dan Carpenter
68050eb6c6 mailbox: tegra-hsp: Use after free in tegra_hsp_remove_doorbells()
We have to use the _safe version of list_for_each() because we're
freeing the pointer as we go along.  (This might not show up testing
depending on what config options you have enabled).

Fixes: 0fe88461a0 ("mailbox: Add Tegra HSP driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:32:13 +01:00
Thierry Reding
0fe88461a0 mailbox: Add Tegra HSP driver
This driver exposes a mailbox interface for interprocessor communication
using the Hardware Synchronization Primitives (HSP) module's doorbell
mechanism. There are multiple HSP instances and they provide additional
features such as shared mailboxes, shared and arbitrated semaphores.

A driver for a remote processor can use the mailbox client provided by
the HSP driver and build an IPC protocol on top of this synchronization
mechanism.

Based on work by Joseph Lo <josephl@nvidia.com>.

Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-18 14:26:13 +01:00
Olof Johansson
e87c077ff6 - prepare mtk-scpsys to for multi soc support
- add support for mt2701 to mtk-scpsys
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Merge tag 'v4.9-next-soc' of https://github.com/mbgg/linux-mediatek into next/drivers

- prepare mtk-scpsys to for multi soc support
- add support for mt2701 to mtk-scpsys

* tag 'v4.9-next-soc' of https://github.com/mbgg/linux-mediatek:
  soc: mediatek: Add MT2701 scpsys driver
  soc: mediatek: Refine scpsys to support multiple platform

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-17 23:46:51 -08:00
Olof Johansson
b9bccf35ac This pull request adds two new drivers for better
support for LCD found on DaVinci DA8xx devices.
 
 They allow configuration of memory interface and
 bus priorities on the SoC to allow sufficient
 bandwidth for the LCD and prevent underruns.
 
 The DT bindings have been reviewed by Rob and
 patches have been reviewed by Kevin.
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Merge tag 'davinci-for-v4.10/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers

This pull request adds two new drivers for better
support for LCD found on DaVinci DA8xx devices.

They allow configuration of memory interface and
bus priorities on the SoC to allow sufficient
bandwidth for the LCD and prevent underruns.

The DT bindings have been reviewed by Rob and
patches have been reviewed by Kevin.

* tag 'davinci-for-v4.10/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  bus: davinci: add support for da8xx bus master priority control
  memory: davinci: add support for da8xx DDR2/mDDR controller

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-17 23:44:43 -08:00
Olof Johansson
5589d62484 Qualcomm ARM Based Driver Updates for v4.10
* Fixup QCOM SCM to use devm_reset_controller_register
 * Add QCOM pinctrl to Qualcomm MAINTAINERS entry
 * Add PM8994 regulator definitions
 * Add stub for WCNSS_CTRL API
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Merge tag 'qcom-drivers-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers

Qualcomm ARM Based Driver Updates for v4.10

* Fixup QCOM SCM to use devm_reset_controller_register
* Add QCOM pinctrl to Qualcomm MAINTAINERS entry
* Add PM8994 regulator definitions
* Add stub for WCNSS_CTRL API

* tag 'qcom-drivers-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  firmware: qcom: scm: Use devm_reset_controller_register()
  MAINTAINERS: add drivers/pinctrl/qcom to ARM/QUALCOMM SUPPORT
  pinctrl: pm8994: add pad voltage regulator defines
  soc: qcom: wcnss_ctrl: Stub wcnss_ctrl API

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-17 23:38:27 -08:00
Olof Johansson
7558341659 Changes to the power-domain driver including counter presets now being set
by firmware on the rk3399, avoiding infite loops when powering on/off a
 domain and actually returning an error if power-domain addition fails.
 The last part requires usage of the (new in 4.9-rc1) pm_genpd_remove
 functionality as well.
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Merge tag 'v4.10-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Changes to the power-domain driver including counter presets now being set
by firmware on the rk3399, avoiding infite loops when powering on/off a
domain and actually returning an error if power-domain addition fails.
The last part requires usage of the (new in 4.9-rc1) pm_genpd_remove
functionality as well.

* tag 'v4.10-rockchip-drivers1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  soc: rockchip: power-domain: Handle errors from of_genpd_add_provider_onecell
  soc: rockchip: power-domain: use pm_genpd_remove in error cleanup
  soc: rockchip: power-domain: avoid infinite loop
  soc: rockchip: power-domain: Don't (incorrectly) set rk3399 up/down counts

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-17 23:31:18 -08:00
Mirza Krak
40eb477678 bus: Add support for Tegra Generic Memory Interface
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>
2016-11-15 17:27:53 +01:00
Mirza Krak
1de9aecbb0 dt/bindings: Add bindings for Tegra GMI controller
Document the devicetree bindings for the Generic Memory Interface (GMI)
bus driver found on Tegra SOCs.

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: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-15 17:27:52 +01:00
Joseph Lo
e983940270 dt-bindings: mailbox: Add Tegra HSP binding
Add DT binding for the Hardware Synchronization Primitives (HSP). The
HSP is designed for the processors to share resources and communicate
with one another. A set of hardware synchronization primitives for
interprocessor communication (IPC) is provided. IPC protocols can use
use these hardware synchronization primitives when operating between
processors in an AMP configuration.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-15 15:52:58 +01:00
Thierry Reding
15326c1ad8 Merge branch 'for-4.10/soc' into for-4.10/mailbox 2016-11-15 15:52:35 +01:00
Joseph Lo
25a0644265 soc/tegra: Add Tegra186 support
The Tegra186 features a combination of Denver and Cortex-A57 CPU cores
and a GPU based on the Pascal architecture. It contains an ADSP with a
Cortex-A9 CPU used for audio processing, hardware video encoders and
decoders with multi-format support, ISP for image capture processing
and BPMP for power management.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-15 15:50:50 +01:00
Bartosz Golaszewski
8e7223fc86 bus: davinci: add support for da8xx bus master priority control
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>
2016-11-14 17:20:29 +05:30
Bartosz Golaszewski
62a8a73923 memory: davinci: add support for da8xx DDR2/mDDR controller
Create a new driver for the da8xx DDR2/mDDR controller and implement
support for writing to the Peripheral Bus Burst Priority Register.

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>
2016-11-14 17:18:34 +05:30
Martin Blumenstingl
7da33a37b4 reset: allow using reset_control_reset with shared reset
Some SoCs (for example Amlogic GXBB) implement a reset controller which
only supports a reset pulse (triggered via reset_control_reset). At the
same time multiple devices (in case of the Amlogic GXBB SoC both USB
PHYs) are sharing the same reset line.

This patch allows using reset_control_reset also for shared resets.
There are limitations though:
reset_control_reset can only be used if reset_control_assert was not
used yet.
reset_control_assert can only be used if reset_control_reset was not
used yet.
For shared resets the reset is only triggered once for the lifetime of
the reset_control instance (the reset can be triggered again if all
consumers of that specific reset_control are gone, as the reset
framework will free the reset_control instance in that case).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-11-14 09:58:28 +01:00
Wei Yongjun
bd4760ca03 firmware: qcom: scm: Use devm_reset_controller_register()
Use devm_reset_controller_register() for the reset controller
registration and fixes the memory leak when unload the module.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-11-12 23:24:51 -06:00
Michael Scott
4fb1a42078 MAINTAINERS: add drivers/pinctrl/qcom to ARM/QUALCOMM SUPPORT
When running checkpatch.pl on a new pinctrl driver in
drivers/pinctrl/qcom, I noticed a warning about creating
a new maintainer.  The drivers/pinctrl/qcom folder doesn't have
anyone assigned in the MAINTAINERS file.

Let's assign it to ARM/QUALCOMM SUPPORT.

Signed-off-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-11-12 23:24:50 -06:00
Tomeu Vizoso
dabc0259db soc: rockchip: power-domain: Handle errors from of_genpd_add_provider_onecell
It was a bit surprising that the device was reported to have probed just
fine, but the provider hadn't been registered.

So handle any errors when registering the provider and fail the probe
accordingly.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-11-11 02:14:59 +01:00
Heiko Stuebner
79d12b7a7f soc: rockchip: power-domain: use pm_genpd_remove in error cleanup
The newly introduced pm_genpd_remove reverts the initialization done
by pm_genpd_init and is necessary in the error path of the rockchip
power-domain driver.

Without it the driver will in the error case cleanup the devm-allocated
structures including the elements referenced in the gpd_list thus making
deactivation of unused domains (and probably later genpd accesses as
well) fail by accessing invalid pointers.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-11-11 02:14:59 +01:00
Olof Johansson
26aec1f476 Renesas ARM Based SoC Drivers Updates for v4.10
* Add support for the r8a7743 SoC to rcar-sysc
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Merge tag 'renesas-drivers-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

Renesas ARM Based SoC Drivers Updates for v4.10

* Add support for the r8a7743 SoC to rcar-sysc

* tag 'renesas-drivers-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  soc: renesas: rcar-sysc: add R8A7743 support
  ARM: shmobile: r8a7743: add power domain index macros

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-07 19:17:27 -08:00
Alexandre Belloni
2ae2e28852 misc: sram: add Atmel securam support
The Atmel secure SRAM is connected to a security module and may be erased
automatically under certain conditions. For that reason, it is necessary to
wait for the security module to flag that SRAM accesses are allowed before
accessing it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07 23:43:28 +01:00
Alexandre Belloni
15adffadc5 misc: sram: document new compatible
Add atmel,sama5d2-securam to the compatible list.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-11-07 23:43:28 +01:00
Alexandre Belloni
35424042c0 ARM: at91: add secumod register definitions
Add registers and bits definitions for the security module found on
sama5d2.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-11-07 23:43:27 +01:00
Alexandre Belloni
e07fd0f67a Documentation: dt: atmel-at91: Document secumod bindings
A security module is available starting with sama5d2, add its bindings.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-11-07 23:43:26 +01:00
Caesar Wang
e4c8cd82d5 soc: rockchip: power-domain: avoid infinite loop
In some cases, we have met the infinite loop in
rockchip_pmu_set_idle_request() or rockchip_do_pmu_set_power_domain().

As the crosbug.com/p/57351 reported, the boot hangs right after this
[1.629163] bootconsole [uart8250] disabled
[1.639286] [drm:drm_core_init] Initialized drm 1.1.0 20060810
[1.645926] [drm:drm_get_platform_dev] Initialized vgem 1.0.0 20120112..
[1.654558] iommu: Adding device ff8f0000.vop to group 0
[1.660569] iommu: Adding device ff900000.vop to group 1
<hang>

This patch adds the error message and timeout to avoid infinite loop if
it fails to get the ack.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-11-02 00:17:59 +01:00
Shunli Wang
112ef1882e soc: mediatek: Add MT2701 scpsys driver
Add scpsys driver for MT2701.

mtk-scpsys now supports MT8173 (arm64) and MT2701 (arm). So it should
be enabled on both arm64 and arm platforms.

Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-10-31 00:58:58 +01:00
James Liao
6078c65194 soc: mediatek: Refine scpsys to support multiple platform
Refine scpsys driver common code to support multiple SoC / platform.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-10-31 00:55:10 +01:00
Srinivas Kandagatla
636959fc12 pinctrl: pm8994: add pad voltage regulator defines
This patch adds defines for internal voltage regulators used
to switch voltage levels on gpio/mpp pads.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-10-24 15:48:21 -05:00
Bjorn Andersson
daa6e41ce2 soc: qcom: wcnss_ctrl: Stub wcnss_ctrl API
Stub the wcnss_ctrl API to allow compile testing wcnss function drivers.

Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-10-24 15:48:21 -05:00
Paul Gortmaker
cdd24f76fe reset: lpc18xx: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_LPC18XX
drivers/reset/Kconfig:  bool "LPC18xx/43xx Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig:  default ARCH_LPC18XX

or

arch/arm/Kconfig:config ARCH_LPC18XX
arch/arm/Kconfig:       bool "NXP LPC18xx/LPC43xx"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-24 10:45:38 +02:00
Paul Gortmaker
fadb03cd46 reset: zynq: make it explicitly non-modular
The Makefile/Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_ZYNQ
drivers/reset/Kconfig:  bool "ZYNQ Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig:  default ARCH_ZYNQ

or

drivers/reset/Makefile:obj-$(CONFIG_ARCH_ZYNQ) += reset-zynq.o
arch/arm/mach-zynq/Kconfig:config ARCH_ZYNQ
arch/arm/mach-zynq/Kconfig:     bool "Xilinx Zynq ARM Cortex A9 Platform" if ARCH_MULTI_V7

...meaning that it currently is not being built as a module by anyone.

Lets remove the few remaining traces of modular macro usage, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-24 10:45:32 +02:00
Paul Gortmaker
c4742ed32b reset: sunxi: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_SUNXI
drivers/reset/Kconfig:  bool "Allwinner SoCs Reset Driver" if COMPILE_TEST && !ARCH_SUNXI
drivers/reset/Kconfig:  default ARCH_SUNXI

or

arch/arm/mach-sunxi/Kconfig:menuconfig ARCH_SUNXI
arch/arm/mach-sunxi/Kconfig:    bool "Allwinner SoCs" if ARCH_MULTI_V7

...meaning that it currently is not being built as a module by anyone.

Lets remove the few remaining traces of modular macro usage, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-24 10:45:31 +02:00
Paul Gortmaker
02163199be reset: socfpga: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_SOCFPGA
drivers/reset/Kconfig:  bool "SoCFPGA Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig:  default ARCH_SOCFPGA

or

arch/arm/mach-socfpga/Kconfig:menuconfig ARCH_SOCFPGA
arch/arm/mach-socfpga/Kconfig:  bool "Altera SOCFPGA family" if ARCH_MULTI_V7

...meaning that it currently is not being built as a module by anyone.

Lets remove the small amount of modular evidence that remains, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-24 10:45:27 +02:00
Paul Gortmaker
ed4dba99ca reset: berlin: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_BERLIN
drivers/reset/Kconfig:  bool "Berlin Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig:  default ARCH_BERLIN

or

arch/arm/mach-berlin/Kconfig:menuconfig ARCH_BERLIN
arch/arm/mach-berlin/Kconfig:   bool "Marvell Berlin SoCs" if ARCH_MULTI_V7

or

arch/arm64/Kconfig.platforms:config ARCH_BERLIN
arch/arm64/Kconfig.platforms:   bool "Marvell Berlin SoC Family"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Antoine Tenart <antoine.tenart@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-24 10:43:40 +02:00
Linus Torvalds
07d9a38068 Linux 4.9-rc2 2016-10-23 17:10:14 -07:00
Linus Torvalds
5ff93abc7a This pull requests contains fixes for issues in both UBI and UBIFS:
- Fallout from the merge window, refactoring UBI code introduced some issues.
 - Fixes for an UBIFS readdir bug which can cause getdents() to busy loop
   for ever and a bug in the UBIFS xattr code.
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Merge tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs

Pull UBI[FS] fixes from Richard Weinberger:
 "This contains fixes for issues in both UBI and UBIFS:

   - Fallout from the merge window, refactoring UBI code introduced some
     issues.

   - Fixes for an UBIFS readdir bug which can cause getdents() to busy
     loop for ever and a bug in the UBIFS xattr code"

* tag 'upstream-4.9-rc2' of git://git.infradead.org/linux-ubifs:
  ubifs: Abort readdir upon error
  UBI: Fix crash in try_recover_peb()
  ubi: fix swapped arguments to call to ubi_alloc_aeb
  ubifs: Fix xattr_names length in exit paths
  ubifs: Rename ubifs_rename2
2016-10-23 16:58:55 -07:00
Linus Torvalds
c761923cb8 A few bug fixes and add some missing KERN_CONT annotations
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "A few bug fixes and add some missing KERN_CONT annotations"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: add missing KERN_CONT to a few more debugging uses
  fscrypto: lock inode while setting encryption policy
  ext4: correct endianness conversion in __xattr_check_inode()
  fscrypto: make XTS tweak initialization endian-independent
  ext4: do not advertise encryption support when disabled
  jbd2: fix incorrect unlock on j_list_lock
  ext4: super.c: Update logging style using KERN_CONT
2016-10-23 16:52:19 -07:00