Commit Graph

825594 Commits

Author SHA1 Message Date
Olof Johansson
bcca940e51 Select correct pwm solution by default.
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Merge tag 'v5.2-rockchip-drivers-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/drivers

Select correct pwm solution by default.

* tag 'v5.2-rockchip-drivers-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  soc: rockchip: Set the proper PWM for rk3288

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:56:07 -07:00
Olof Johansson
1e6df94937 Reset controller changes for v5.2
This adds support for 'acquired'/'released' states to exclusive reset
 controls to allow drivers that usually need direct control over their
 reset line, to temporarily yield control to another driver, such as a
 power domain controller during power transitions. A fix adds missing
 headers to linux/reset.h, which caused build errors in linux-next,
 discovered by the new lima DRM driver.
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Merge tag 'reset-for-5.2' of git://git.pengutronix.de/pza/linux into arm/drivers

Reset controller changes for v5.2

This adds support for 'acquired'/'released' states to exclusive reset
controls to allow drivers that usually need direct control over their
reset line, to temporarily yield control to another driver, such as a
power domain controller during power transitions. A fix adds missing
headers to linux/reset.h, which caused build errors in linux-next,
discovered by the new lima DRM driver.

* tag 'reset-for-5.2' of git://git.pengutronix.de/pza/linux:
  reset: fix linux/reset.h errors

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:53:21 -07:00
Olof Johansson
c687702b5f pmic wrapper:
- add mt8516 bindings
 - add mt8516 driver support
 - fix clang warning
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Merge tag 'v5.1-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers

pmic wrapper:
- add mt8516 bindings
- add mt8516 driver support
- fix clang warning

* tag 'v5.1-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
  soc: mediatek: pwrap: add support for MT8516 pwrap
  soc: mediatek: pwrap: add missing check on rstc
  dt-bindings: pwrap: mediatek: add pwrap support for MT8516

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:52:30 -07:00
Olof Johansson
782935d12e Qualcomm ARM Based Driver Updates for v5.2
* Update MAINTAINERS for Andy Gross's new email address
 * Add support for mmap in RMTFS
 * Fixup for QMI to change txn wait to non-interruptible
 * Fixup for error code in probe of cmd-db
 * Fixup for slot number check in RMPH-RSC
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Merge tag 'qcom-drivers-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into arm/drivers

Qualcomm ARM Based Driver Updates for v5.2

* Update MAINTAINERS for Andy Gross's new email address
* Add support for mmap in RMTFS
* Fixup for QMI to change txn wait to non-interruptible
* Fixup for error code in probe of cmd-db
* Fixup for slot number check in RMPH-RSC

* tag 'qcom-drivers-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  drivers: soc: qcom: rpmh-rsc: Correct check for slot number
  soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe()
  soc: qcom: qmi: Change txn wait to non-interruptible
  soc: qcom: rmtfs: Add support for mmap functionality

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:40:30 -07:00
Patrick Venture
524feb7994 soc: add aspeed folder and misc drivers
Create a SoC folder for the ASPEED parts and place the misc drivers
currently present into this folder.  These drivers are not generic part
drivers, but rather only apply to the ASPEED SoCs.

Signed-off-by: Patrick Venture <venture@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:36:34 -07:00
Olof Johansson
f99552d9eb i.MX drivers change for 5.2:
- A series from Aisheng to generalize the SCU powerdomain driver
    for easier adding new SCU based platforms like imx8qm.
  - Add a generic i.MX8 SoC driver for reporting SoC and platform
    information.
  - Replace explicit polling loop with a call to regmap_read_poll_timeout()
    for gpcv2 driver to avoid code repetition.
  - Use devm_platform_ioremap_resource() to simplify gpc/gpcv2 driver
    code a bit.
  - Add general IRQ support for imx-scu driver, so that interrupt of
    device like RTC, thermal and watchdog can be handled.
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Merge tag 'imx-drivers-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers change for 5.2:
 - A series from Aisheng to generalize the SCU powerdomain driver
   for easier adding new SCU based platforms like imx8qm.
 - Add a generic i.MX8 SoC driver for reporting SoC and platform
   information.
 - Replace explicit polling loop with a call to regmap_read_poll_timeout()
   for gpcv2 driver to avoid code repetition.
 - Use devm_platform_ioremap_resource() to simplify gpc/gpcv2 driver
   code a bit.
 - Add general IRQ support for imx-scu driver, so that interrupt of
   device like RTC, thermal and watchdog can be handled.

* tag 'imx-drivers-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: Add generic i.MX8 SoC driver
  firmware: imx: enable imx scu general irq function
  soc: imx: gpcv2: use devm_platform_ioremap_resource() to simplify code
  soc: imx: gpc: use devm_platform_ioremap_resource() to simplify code
  firmware: imx: scu-pd: decouple the SS information from domain names
  firmware: imx: scu-pd: add specifying the base of domain name index support
  firmware: imx: scu-pd: use bool to set postfix
  soc: imx: gpcv2: Make use of regmap_read_poll_timeout()

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:25:21 -07:00
Olof Johansson
ab7b7c715e spi: zynqmp: Fix build break
Missing include:
drivers/spi/spi-zynqmp-gqspi.c:1025:13: error: implicit declaration of
  function 'zynqmp_pm_get_eemi_ops'; did you mean
  'zynqmp_process_dma_irq'? [-Werror=implicit-function-declaration]

Fixes: 3d03137864 ('drivers: Defer probe if firmware is not ready')
Cc: Rajan Vaja <rajan.vaja@xilinx.com>
Cc: Jolly Shah <jollys@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:15:16 -07:00
Olof Johansson
149d35c72a soc: amlogic: updates for v5.2, round 2
- VPU power domain: add supporg for G12A SoCs
 - socinfo: add new SoC and package IDS.
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Merge tag 'amlogic-drivers-2' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers

soc: amlogic: updates for v5.2, round 2
- VPU power domain: add supporg for G12A SoCs
- socinfo: add new SoC and package IDS.

* tag 'amlogic-drivers-2' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:44:20 -07:00
Olof Johansson
3e0c0aee45 Renesas ARM Based SoC Drivers Updates for v5.2
* Identify R-Car M3-W ES1.3
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Merge tag 'renesas-drivers-for-v5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into arm/drivers

Renesas ARM Based SoC Drivers Updates for v5.2

* Identify R-Car M3-W ES1.3

* tag 'renesas-drivers-for-v5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  soc: renesas: Identify R-Car M3-W ES1.3

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:41:16 -07:00
Olof Johansson
dd3e3f2338 ARM: tegra: Core changes for v5.2-rc1
One of these patches enables PM by default on 32-bit ARM, following the
 same default that we already have on 64-bit ARM. The other patch fixes a
 cosmetic issue in the cpuidle driver for Tegra20 and Tegra30.
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Merge tag 'tegra-for-5.2-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

ARM: tegra: Core changes for v5.2-rc1

One of these patches enables PM by default on 32-bit ARM, following the
same default that we already have on 64-bit ARM. The other patch fixes a
cosmetic issue in the cpuidle driver for Tegra20 and Tegra30.

* tag 'tegra-for-5.2-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  ARM: tegra: enforce PM requirement

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:35:41 -07:00
Olof Johansson
2195471254 memory: tegra: Changes for v5.2-rc1
These are a set of fixes for various issues related to the Tegra memory
 controller.
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Merge tag 'tegra-for-5.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

memory: tegra: Changes for v5.2-rc1

These are a set of fixes for various issues related to the Tegra memory
controller.

* tag 'tegra-for-5.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  memory: tegra: Properly spell "tegra"
  memory: tegra: Make terga20_mc_reset_ops static

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:35:18 -07:00
Olof Johansson
990d4322cc soc/tegra: Changes for v5.2-rc1
Besides a couple of fixes to better cope with deferred probing, this set
 of patches also implements the acquire/release protocol for resets used
 during powergate operations. This is necessary to allow these resets to
 be temporarily shared with other devices that may also need to control
 these resets.
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Merge tag 'tegra-for-5.2-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

soc/tegra: Changes for v5.2-rc1

Besides a couple of fixes to better cope with deferred probing, this set
of patches also implements the acquire/release protocol for resets used
during powergate operations. This is necessary to allow these resets to
be temporarily shared with other devices that may also need to control
these resets.

* tag 'tegra-for-5.2-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc/tegra: pmc: Implement acquire/release for resets
  reset: Add acquire/release support for arrays
  reset: Add acquired flag to of_reset_control_array_get()
  reset: add acquired/released state for exclusive reset controls

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:33:50 -07:00
Olof Johansson
fea188820b bus/tegra: Changes for v5.2-rc1
This pair of patches adds support for system sleep to the ACONNECT bus
 found on Tegra SoCs.
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Merge tag 'tegra-for-5.2-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

bus/tegra: Changes for v5.2-rc1

This pair of patches adds support for system sleep to the ACONNECT bus
found on Tegra SoCs.

* tag 'tegra-for-5.2-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  bus: tegra-aconnect: add system sleep callbacks
  bus: tegra-aconnect: use devm_clk_*() helpers

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:33:19 -07:00
Olof Johansson
aaf75f2b53 Allow OP-TEE driver to work without static shared memory
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Merge tag 'tee-optee-for-5.2' of http://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers

Allow OP-TEE driver to work without static shared memory

* tag 'tee-optee-for-5.2' of http://git.linaro.org:/people/jens.wiklander/linux-tee:
  optee: allow to work without static shared memory

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:21:27 -07:00
Olof Johansson
7f26bb130a ARM SCMI fixes/cleanup for v5.2
1. Fix for of_node reference leak in scmi_mailbox_check by passing
    NULL argument to of_parse_phandle_with_args instead of dummy argument
 
 2. Cleanup of_match_device->data NULL pointer handling using
    of_device_get_match_data() helper
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Merge tag 'scmi-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers

ARM SCMI fixes/cleanup for v5.2

1. Fix for of_node reference leak in scmi_mailbox_check by passing
   NULL argument to of_parse_phandle_with_args instead of dummy argument

2. Cleanup of_match_device->data NULL pointer handling using
   of_device_get_match_data() helper

* tag 'scmi-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: replace of_match_device->data with of_device_get_match_data()
  firmware: arm_scmi: fix of_node leak in scmi_mailbox_check

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:11:24 -07:00
Olof Johansson
b94d3ff97e arm64: zynqmp: SoC changes for v5.2
- Add support for ZynqMP fpga manager
 - Defer some probes which depends on firmware driver to be ready
 - Debugfs fix
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Merge tag 'zynqmp-soc-for-v5.2' of https://github.com/Xilinx/linux-xlnx into arm/drivers

arm64: zynqmp: SoC changes for v5.2

- Add support for ZynqMP fpga manager
- Defer some probes which depends on firmware driver to be ready
- Debugfs fix

* tag 'zynqmp-soc-for-v5.2' of https://github.com/Xilinx/linux-xlnx:
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  drivers: Defer probe if firmware is not ready
  firmware: xilinx: fix debugfs write handler

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:07:03 -07:00
Olof Johansson
0065198e67 PM changes for am335x and am437x
This series adds support for am437x RTC-only mode in suspend. In the
 RTC-only mode suspend, everything is shut down except the RTC. This
 makes the power consumption very low for suspend mode.
 
 To support RTC-only mode, we need to export omap_rtc_power_off_program()
 from the rtc driver and improve PM code to save and restore the wkup
 domain context. As RTC-only mode depends on the device being wired
 properly for things like memory, we need to also check for the machine
 type before we allow it. We also need to run DDR3 hardware leveling on
 resume.
 
 Note that there is a trivial merge conflict between the RTC branch
 and these changes where the RTC branch makes tm2bcd() a void function
 and the error handling parts can be just dropped.
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Merge tag 'omap-for-v5.2/am4-pm-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers

PM changes for am335x and am437x

This series adds support for am437x RTC-only mode in suspend. In the
RTC-only mode suspend, everything is shut down except the RTC. This
makes the power consumption very low for suspend mode.

To support RTC-only mode, we need to export omap_rtc_power_off_program()
from the rtc driver and improve PM code to save and restore the wkup
domain context. As RTC-only mode depends on the device being wired
properly for things like memory, we need to also check for the machine
type before we allow it. We also need to run DDR3 hardware leveling on
resume.

Note that there is a trivial merge conflict between the RTC branch
and these changes where the RTC branch makes tm2bcd() a void function
and the error handling parts can be just dropped.

* tag 'omap-for-v5.2/am4-pm-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: sleep43xx: Run EMIF HW leveling on resume path
  memory: ti-emif-sram: Add ti_emif_run_hw_leveling for DDR3 hardware leveling
  soc: ti: pm33xx: AM437X: Add rtc_only with ddr in self-refresh support
  soc: ti: pm33xx: Move the am33xx_push_sram_idle to the top
  ARM: OMAP2+: pm33xx: Add support for rtc+ddr in self refresh mode
  rtc: OMAP: Add support for rtc-only mode

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:04:13 -07:00
Olof Johansson
424adc176a soc: Amlogic updates for v5.2
- socinfo: support new SoCs / packages
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Merge tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers

soc: Amlogic updates for v5.2
- socinfo: support new SoCs / packages

* tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  meson-gx-socinfo: add missing of_node_put after of_device_is_available
  soc: amlogic: gx-socinfo: Add new SoC IDs and Packages IDs
  soc: amlogic: gx-socinfo: Add mask for each SoC packages

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 12:07:53 -07:00
Abel Vesa
a7e26f356c soc: imx: Add generic i.MX8 SoC driver
Add generic i.MX8 SoC driver along with the i.MX8MQ SoC specific code.
For now, only i.MX8MQ revision B1 is supported. For any other, i.MX8MQ
revision it will print 'unknown'.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-20 21:26:36 +08:00
Andy Gross
2616b3deaf MAINTAINERS: Update email for Qualcomm SoC maintainer
This patch changes the email for Andy Gross to agross@kernel.org.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
2019-04-18 23:27:29 -05:00
Edward Cragg
67a8d5b0fa memory: tegra: Fix a typos for "fdcdwr2" mc client
Fix typo for fdcwr2 to fdcdwr2 to match the TRM.

Signed-off-by: Edward Cragg <drq.11235@gmail.com>
Signed-off-by: Kejia Hu <kejia.hu@codethink.co.uk>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:51:17 +02:00
Dmitry Osipenko
a359de1b40 Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
Turned out that the actual bug was in the Memory Controller driver
that programmed shadowed registers without latching the new values
and then there was a bug on EMEM arbitration configuration calculation
that results in a wrong value being latched on resume from suspend.
The Memory Controller has been fixed properly now, hence the workaround
patch could be reverted safely.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:36:24 +02:00
Dmitry Osipenko
48791f9722 memory: tegra: Replace readl-writel with mc_readl-mc_writel
There is no need for a memory barriers on reading/writing of register
values as we only care about the read/write order, hence let's use the
common helpers.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:36:10 +02:00
Dmitry Osipenko
b906c056b6 memory: tegra: Fix integer overflow on tick value calculation
Multiplying the Memory Controller clock rate by the tick count results
in an integer overflow and in result the truncated tick value is being
programmed into hardware, such that the GR3D memory client performance is
reduced by two times.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:35:55 +02:00
Dmitry Osipenko
76b959a44c memory: tegra: Fix missed registers values latching
Some of Memory Controller registers are shadowed and require latching in
order to copy assembly state into the active, MC_EMEM_ARB_CFG is one of
these registers.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:35:38 +02:00
Dmitry Osipenko
36841ba279 ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
Tegra20/30 drivers do not handle the tick_broadcast_enter() error which
potentially could happen when CPU timer isn't permitted to be stopped.
Let's just move out the broadcasting to the CPUIDLE core by setting the
respective flag in the Tegra20/30 drivers. This patch doesn't fix any
problem because currently tick_broadcast_enter() could fail only on
ARM64, so consider this change as a minor cleanup.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-18 11:32:57 +02:00
Volodymyr Babchuk
9733b072a1 optee: allow to work without static shared memory
On virtualized systems it is possible that OP-TEE will provide
only dynamic shared memory support. So it is fine to boot
without static SHM enabled if dymanic one is supported.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2019-04-17 17:26:33 +02:00
Jon Hunter
6ac2a01de1 soc/tegra: pmc: Move powergate initialisation to probe
Commit 8df127456f ("soc/tegra: pmc: Enable XUSB partitions on boot")
was added as a workaround to ensure that the XUSB powergates or domains
were turned on early during boot because as this time the Tegra XHCI
driver did not handle the power domains at all. Now that the Tegra XHCI
driver has been updated to properly managed the power domains, the
workaround to enable the XUSB power domain early has been removed. This
also means that we can now move the initialisation of the powergates
into the PMC driver probe. Therefore, move the powergate initialisation
into the PMC driver probe and return any errors detected. To handle any
errors, functions to cleanup and remove any power-domains registered
with the generic power-domain framework have been added.

Finally the initialisation of the 'powergates_available' bitmask is kept
in the PMC early init function to allow the legacy PMC powergate APIs to
be called during early boot for enabling secondary CPUs on 32-bit Tegra
devices.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-17 10:32:33 +02:00
Jon Hunter
a46b51cd2a soc/tegra: pmc: Remove reset sysfs entries on error
Commit 5f84bb1a40 ("soc/tegra: pmc: Add sysfs entries for reset info")
added sysfs entries for Tegra reset source and level. However, these
sysfs are not removed on error and so if the registering of PMC device
is probe deferred, then the next time we attempt to probe the PMC device
warnings such as the following will be displayed on boot ...

  sysfs: cannot create duplicate filename '/devices/platform/7000e400.pmc/reset_reason'

Fix this by calling device_remove_file() for each sysfs entry added on
failure. Note that we call device_remove_file() unconditionally without
checking if the sysfs entry was created in the first place, but this
should be OK because kernfs_remove_by_name_ns() will fail silently.

Fixes: 5f84bb1a40 ("soc/tegra: pmc: Add sysfs entries for reset info")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-17 10:32:08 +02:00
Jon Hunter
00cdaa1b81 soc/tegra: pmc: Fix reset sources and levels
Commit 5f84bb1a40 ("soc/tegra: pmc: Add sysfs entries for reset info")
added support for reading the Tegra reset source and level from sysfs.
However, there are a few issues with this commit which are ...
1. The number of reset sources for Tegra210 is defined as 5 but it
   should be 6.
2. The number of reset sources for Tegra186 is defined as 13 but it
   should be 15.
3. The SoC data variables num_reset_sources and num_reset_levels are
   defined but never used.

Fix the above by ...

1. Removing the reset source 'AOTAG' from the tegra30_reset_sources
   because this is only applicable for Tegra210.
2. Adding a new tegra210_reset_sources structure for Tegra210 reset
   sources.
3. Correct the number of reset sources for Tegra210 and Tegra186 by
   using the ARRAY_SIZE macro.
4. Updating the functions reset_reason_show() and reset_level_show()
   to check whether the value read is valid. While we are at it
   clean-up these functions to remove an unnecessary u32 variable.

Fixes: 5f84bb1a40 ("soc/tegra: pmc: Add sysfs entries for reset info")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-17 10:30:08 +02:00
Neil Armstrong
bb1dca3a39 soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
The Amlogic G12A SoC has a very similar VPU Power Controller setup
than the older GXBB, GXL & GXm SoCs.

This patch adds the variant support for G12A.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-04-16 11:09:53 -07:00
Neil Armstrong
2fe3b4bbc9 soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
The register bitmask to power on/off the VPU memories was incorectly set
to 0x2 instead of 0x3. While still working, let's use the recommended
vendor value instead.

Fixes: 75fcb5ca4b ("soc: amlogic: add Meson GX VPU Domains driver")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-04-16 11:09:17 -07:00
Nava kishore Manne
c09f747112 fpga manager: Adding FPGA Manager support for Xilinx zynqmp
This patch adds FPGA Manager support for the Xilinx
ZynqMP chip.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-04-15 10:23:18 +02:00
Nava kishore Manne
9b0879620e dt-bindings: fpga: Add bindings for ZynqMP fpga driver
Add documentation to describe Xilinx ZynqMP fpga driver
bindings.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-04-15 10:23:17 +02:00
Nava kishore Manne
e840decc19 firmware: xilinx: Add fpga API's
This Patch Adds fpga API's to support the Bitstream loading
by using firmware interface.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-04-15 10:22:51 +02:00
Nathan Chancellor
89e28da828 soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
When building with -Wsometimes-uninitialized, Clang warns:

drivers/soc/mediatek/mtk-pmic-wrap.c:1358:6: error: variable 'rdata' is
used uninitialized whenever '||' condition is true
[-Werror,-Wsometimes-uninitialized]

If pwrap_write returns non-zero, pwrap_read will not be called to
initialize rdata, meaning that we will use some random uninitialized
stack value in our print statement. Zero initialize rdata in case this
happens.

Link: https://github.com/ClangBuiltLinux/linux/issues/401
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2019-04-12 21:57:49 +02:00
Fabien Parent
45a0686b91 soc: mediatek: pwrap: add support for MT8516 pwrap
Add the code to support the pwrap IP on the MediaTek MT8516 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2019-04-12 19:42:59 +02:00
Fabien Parent
a51f4c031d soc: mediatek: pwrap: add missing check on rstc
The variable rstc is set only when the SoC PWRAP have the
PWRAP_CAP_RESET capability. Check whether rstc is set before
using it to avoid errors.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2019-04-12 19:42:41 +02:00
Fabien Parent
4bad8b0709 dt-bindings: pwrap: mediatek: add pwrap support for MT8516
Add binding documentation of pwrap for MT8516 SoCs.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2019-04-12 19:42:24 +02:00
Aditya Pakki
d9350f21e5 firmware: arm_scmi: replace of_match_device->data with of_device_get_match_data()
of_match_device can return NULL if no matching device is found though
it's highly unlikely to happen in scmi_probe as it's called only if
a valid match is found.

However we can use of_device_get_match_data() instead of
of_match_device()->data to handle NULL pointer checks and return -EINVAL
in such a scenario.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-04-12 18:11:18 +01:00
Steven Price
fa7fe29a64 firmware: arm_scmi: fix of_node leak in scmi_mailbox_check
of_parse_phandle_with_args() requires the caller to call of_node_put() on
the returned args->np pointer. Otherwise the reference count will remain
incremented.

However, in this case, since we don't actually use the returned pointer,
we can simply pass in NULL.

Fixes: aa4f886f38 ("firmware: arm_scmi: add basic driver infrastructure for SCMI")
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-04-12 18:11:18 +01:00
Thierry Reding
cb2b58391e memory: tegra: Properly spell "tegra"
Rename all occurrences of "terga" to "tegra". It's an easy typo to make
and a difficult one to spot.

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-11 17:58:41 +02:00
Douglas Anderson
bbdc00a7de soc: rockchip: Set the proper PWM for rk3288
The rk3288 SoC has two PWM implementations available, the "old"
implementation and the "new" one.  You can switch between the two of
them by flipping a bit in the grf.

The "old" implementation is the default at chip power up but isn't the
one that's officially supposed to be used.  ...and, in fact, the
driver that gets selected in Linux using the rk3288 device tree only
supports the "new" implementation.

Long ago I tried to get a switch to the right IP block landed in the
PWM driver (search for "rk3288: Switch to use the proper PWM IP") but
that got rejected.  In the mean time the grf has grown a full-fledged
driver that already sets other random bits like this.  That means we
can now get the fix landed.

For those wondering how things could have possibly worked for the last
4.5 years, folks have mostly been relying on the bootloader to set
this bit.  ...but occasionally folks have pointed back to my old patch
series [1] in downstream kernels.

[1] https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1391597.html

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-11 13:40:32 +02:00
Yue Haibing
f2222a9e80 memory: tegra: Make terga20_mc_reset_ops static
Fix sparse warning:

drivers/memory/tegra/tegra20.c:277:33: warning:
 symbol 'terga20_mc_reset_ops' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-11 10:53:47 +02:00
Anson Huang
851826c756 firmware: imx: enable imx scu general irq function
The System Controller Firmware (SCFW) controls RTC, thermal
and WDOG etc., these resources' interrupt function are managed
by SCU. When any IRQ pending, SCU will notify Linux via MU general
interrupt channel #3, and Linux kernel needs to call SCU APIs
to get IRQ status and notify each module to handle the interrupt.

Since there is no data transmission for SCU IRQ notification, so
doorbell mode is used for this MU channel, and SCU driver will
use notifier mechanism to broadcast to every module which registers
the SCU block notifier.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-11 15:31:02 +08:00
Anson Huang
9f735c4e94 soc: imx: gpcv2: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-11 15:16:44 +08:00
Anson Huang
ccc1de31ab soc: imx: gpc: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-11 15:16:39 +08:00
Tony Lindgren
35667d812c Merge branch 'omap-for-v5.2/am4-ddr3' into omap-for-v5.2/am4-pm-v2 2019-04-10 09:06:01 -07:00
Maulik Shah
bbeac60f06 drivers: soc: qcom: rpmh-rsc: Correct check for slot number
The return index value from bitmap_find_next_zero_area can be higher
than available slot. So correct the check to return error in such case.

Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
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 <agross@kernel.org>
2019-04-09 23:40:09 -05:00
Dave Gerlach
11140cc40d ARM: OMAP2+: sleep43xx: Run EMIF HW leveling on resume path
When returning from DeepSleep mode on AM437x platforms the EMIF must run
DDR hardware leveling, same as done during u-boot, to properly restore the
EMIF PHY to it's operational state on platforms using DDR3.

Call the ti-emif-sram-pm run_hw_leveling routine to perform this. This
happens after all other EMIF values are restored so the exact same
configuration used at boot is used at the end of EMIF resume as well.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-09 08:32:12 -07:00