Commit Graph

888029 Commits

Author SHA1 Message Date
Olof Johansson 333505a406 Qualcomm driver updates for v5.6
* SCM major refactoring and cleanup
 * Properly flag active only power domains as active only
 * Add SC7180 and SM8150 RPMH power domains
 * Return EPROBE_DEFER from QMI if packet family is not yet available
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Merge tag 'qcom-drivers-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm driver updates for v5.6

* SCM major refactoring and cleanup
* Properly flag active only power domains as active only
* Add SC7180 and SM8150 RPMH power domains
* Return EPROBE_DEFER from QMI if packet family is not yet available

* tag 'qcom-drivers-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (27 commits)
  firmware: qcom_scm: Dynamically support SMCCC and legacy conventions
  firmware: qcom_scm: Remove thin wrappers
  firmware: qcom_scm: Order functions, definitions by service/command
  firmware: qcom_scm-32: Add device argument to atomic calls
  firmware: qcom_scm-32: Create common legacy atomic call
  firmware: qcom_scm-32: Move SMCCC register filling to qcom_scm_call
  firmware: qcom_scm-32: Use qcom_scm_desc in non-atomic calls
  firmware: qcom_scm-32: Add funcnum IDs
  firmware: qcom_scm-32: Use SMC arch wrappers
  firmware: qcom_scm-64: Improve SMC convention detection
  firmware: qcom_scm-64: Move SMC register filling to qcom_scm_call_smccc
  firmware: qcom_scm-64: Add SCM results struct
  firmware: qcom_scm-64: Move svc/cmd/owner into qcom_scm_desc
  firmware: qcom_scm-64: Make SMC macros less magical
  firmware: qcom_scm: Remove unused qcom_scm_get_version
  firmware: qcom_scm: Apply consistent naming scheme to command IDs
  firmware: qcom_scm: Rename macros and structures
  soc: qcom: rpmhpd: Set 'active_only' for active only power domains
  firmware: scm: Add stubs for OCMEM and restore_sec_cfg_available
  dt-bindings: power: rpmpd: Convert rpmpd bindings to yaml
  ...

Link: https://lore.kernel.org/r/20200113204405.GD3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 15:45:36 -08:00
Olof Johansson a9e3e12f3f NXP/FSL SoC driver updates for v5.6
QUICC Engine drivers
 - Improve the QE drivers to be compatible with ARM/ARM64/PPC64
 architectures
 - Various cleanups to the QE drivers
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Merge tag 'soc-fsl-next-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.6

QUICC Engine drivers
- Improve the QE drivers to be compatible with ARM/ARM64/PPC64
architectures
- Various cleanups to the QE drivers

* tag 'soc-fsl-next-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux: (49 commits)
  soc: fsl: qe: remove set but not used variable 'mm_gc'
  soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE
  soc: fsl: qe: remove unused #include of asm/irq.h from ucc.c
  net: ethernet: freescale: make UCC_GETH explicitly depend on PPC32
  net/wan/fsl_ucc_hdlc: reject muram offsets above 64K
  net/wan/fsl_ucc_hdlc: fix reading of __be16 registers
  net/wan/fsl_ucc_hdlc: avoid use of IS_ERR_VALUE()
  soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c
  soc: fsl: qe: drop pointless check in qe_sdma_init()
  soc: fsl: qe: drop use of IS_ERR_VALUE in qe_sdma_init()
  soc: fsl: qe: avoid IS_ERR_VALUE in ucc_slow.c
  soc: fsl: qe: refactor cpm_muram_alloc_common to prevent BUG on error path
  soc: fsl: qe: drop broken lazy call of cpm_muram_init()
  soc: fsl: qe: make cpm_muram_free() ignore a negative offset
  soc: fsl: qe: make cpm_muram_free() return void
  soc: fsl: qe: change return type of cpm_muram_alloc() to s32
  serial: ucc_uart: access __be32 field using be32_to_cpu
  serial: ucc_uart: limit brg-frequency workaround to PPC32
  serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe()
  serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32
  ...

Link: https://lore.kernel.org/r/1578608351-23289-1-git-send-email-leoyang.li@nxp.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 12:47:13 -08:00
Olof Johansson 0f82727317 i.MX driver changes for 5.6:
- Add i.MX8MP SoC driver support.
  - Allow IMX DSP Protocol driver to be built as module.
  - Add COMPILE_TEST for IMX_SCU_SOC driver to increase build coverage.
  - Print SoC type and revision in i.MX8 SoC driver, as this is useful
    information to have when looking through boot log.
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Merge tag 'imx-driver-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX driver changes for 5.6:

 - Add i.MX8MP SoC driver support.
 - Allow IMX DSP Protocol driver to be built as module.
 - Add COMPILE_TEST for IMX_SCU_SOC driver to increase build coverage.
 - Print SoC type and revision in i.MX8 SoC driver, as this is useful
   information to have when looking through boot log.

* tag 'imx-driver-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  firmware: imx: Allow IMX DSP to be selected as module
  soc: imx: Enable compile testing of IMX_SCU_SOC
  soc: imx: Add i.MX8MP SoC driver support
  soc: imx8: print SoC type and revision

Link: https://lore.kernel.org/r/20200113034006.17430-1-shawnguo@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:47:29 -08:00
Olof Johansson c7ce73eb01 mvebu drivers for 5.6 (part 1)
- Various cleanup on the following drivers:
    - Turris Mox rWTM firmware
    - Moxtet bus
    - Armada 37xx rWTM mailbox
    - Marvell EBU Device Bus
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Merge tag 'mvebu-drivers-5.6-1' of git://git.infradead.org/linux-mvebu into arm/drivers

mvebu drivers for 5.6 (part 1)

 - Various cleanup on the following drivers:
   - Turris Mox rWTM firmware
   - Moxtet bus
   - Armada 37xx rWTM mailbox
   - Marvell EBU Device Bus

* tag 'mvebu-drivers-5.6-1' of git://git.infradead.org/linux-mvebu:
  mailbox: armada-37xx-rwtm: convert to devm_platform_ioremap_resource
  memory: mvebu-devbus: convert to devm_platform_ioremap_resource
  bus: moxtet: declare moxtet_bus_type as static
  firmware: turris-mox-rwtm: small white space cleanup

Link: https://lore.kernel.org/r/877e1x3nxc.fsf@FE-laptop
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:45:44 -08:00
Olof Johansson e87f61892c soc: tegra: Changes for v5.6-rc1
This adds a couple of optimizations to how the chip ID and straps are
 read and adds support for the FUSE block on Tegra194. Included is also a
 small optimization for the coupled regulator driver to abort early if no
 voltage change has occurred.
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Merge tag 'tegra-for-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

soc: tegra: Changes for v5.6-rc1

This adds a couple of optimizations to how the chip ID and straps are
read and adds support for the FUSE block on Tegra194. Included is also a
small optimization for the coupled regulator driver to abort early if no
voltage change has occurred.

* tag 'tegra-for-5.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: fuse: Unmap registers once they are not needed anymore
  soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
  soc/tegra: fuse: Warn if straps are not ready
  soc/tegra: fuse: Cache values of straps and Chip ID registers
  soc/tegra: regulators: Do nothing if voltage is unchanged
  soc/tegra: fuse: Add APB DMA dependency for Tegra20
  soc/tegra: fuse: Add Tegra194 support

Link: https://lore.kernel.org/r/20200111003553.2411874-4-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:42:18 -08:00
Olof Johansson 083b4db857 memory: tegra: Changes for v5.6-rc1
This adds a couple of fixes for the Tegra30 EMC frequency scaling code
 and adds support for EMC frequency scaling on Tegra186 and later.
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Merge tag 'tegra-for-5.6-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

memory: tegra: Changes for v5.6-rc1

This adds a couple of fixes for the Tegra30 EMC frequency scaling code
and adds support for EMC frequency scaling on Tegra186 and later.

* tag 'tegra-for-5.6-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra30-emc: Correct error message for timed out auto calibration
  memory: tegra30-emc: Firm up hardware programming sequence
  memory: tegra30-emc: Firm up suspend/resume sequence
  memory: tegra: Correct reset value of xusb_hostr
  memory: tegra: Add support for the Tegra194 memory controller
  memory: tegra: Only include support for enabled SoCs
  memory: tegra: Support DVFS on Tegra186 and later
  memory: tegra: Add system sleep support
  memory: tegra: Extract memory client SID programming
  memory: tegra: Add per-SoC data for Tegra186
  memory: tegra: Rename tegra_mc to tegra186_mc on Tegra186
  memory: tegra: Implement EMC debugfs interface on Tegra30
  memory: tegra: Implement EMC debugfs interface on Tegra20
  memory: tegra: Refashion EMC debugfs interface on Tegra124

Link: https://lore.kernel.org/r/20200111003553.2411874-3-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:41:48 -08:00
Olof Johansson 0d241c3f95 bus: tegra: Changes for v5.6-rc1
Contains a single fix to remove a Kconfig dependency that's no longer
 required.
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Merge tag 'tegra-for-5.6-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

bus: tegra: Changes for v5.6-rc1

Contains a single fix to remove a Kconfig dependency that's no longer
required.

* tag 'tegra-for-5.6-bus' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  bus: tegra-aconnect: Remove PM_CLK dependency

Link: https://lore.kernel.org/r/20200111003553.2411874-2-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-16 10:40:22 -08:00
Olof Johansson 06d3d72725 Samsung soc drivers changes for v5.6
1. Convert to managed (devm_x()) versions,
 2. Cleanups (Samsung and Exynos names).
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Merge tag 'samsung-drivers-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers

Samsung soc drivers changes for v5.6

1. Convert to managed (devm_x()) versions,
2. Cleanups (Samsung and Exynos names).

* tag 'samsung-drivers-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  memory: samsung: Rename Exynos to lowercase
  soc: samsung: Rename Samsung and Exynos to lowercase
  memory: samsung: exynos5422-dmc: Convert to devm_platform_ioremap_resource
  soc: samsung: exynos-pmu: Convert to devm_platform_ioremap_resource

Link: https://lore.kernel.org/r/20200110172334.4767-2-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-10 22:27:10 -08:00
Olof Johansson 3abda7cabe Reset controller updates for v5.6
This tag adds support for the Nuvoton NPCM, Intel Gatway SoC, and
 Broadcom BCM7216 RESCAL reset controllers, adds missing SCSSI reset
 controls for newer Uniphier SoCs, aligns the program flow in the
 devm_reset_controller_register, __devm_reset_control_get, and
 devm_reset_control_array_get functions for better consistency,
 and allows to build the Qcom AOSS reset driver as a module.
 
 This is based on v5.5-rc3 because the core patch depends on commit
 db23808615 ("reset: Do not register resource data for missing
 resets").
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Merge tag 'reset-for-5.6' of git://git.pengutronix.de/pza/linux into arm/drivers

Reset controller updates for v5.6

This tag adds support for the Nuvoton NPCM, Intel Gatway SoC, and
Broadcom BCM7216 RESCAL reset controllers, adds missing SCSSI reset
controls for newer Uniphier SoCs, aligns the program flow in the
devm_reset_controller_register, __devm_reset_control_get, and
devm_reset_control_array_get functions for better consistency,
and allows to build the Qcom AOSS reset driver as a module.

This is based on v5.5-rc3 because the core patch depends on commit
db23808615 ("reset: Do not register resource data for missing
resets").

* tag 'reset-for-5.6' of git://git.pengutronix.de/pza/linux:
  reset: qcom-aoss: Allow CONFIG_RESET_QCOM_AOSS to be a tristate
  reset: Add Broadcom STB RESCAL reset controller
  dt-bindings: reset: Document BCM7216 RESCAL reset controller
  reset: intel: Add system reset controller driver
  dt-bindings: reset: Add YAML schemas for the Intel Reset controller
  reset: uniphier: Add SCSSI reset control for each channel
  reset: Align logic and flow in managed helpers
  reset: npcm: add NPCM reset controller driver
  dt-bindings: reset: Add binding constants for NPCM7xx reset controller
  dt-bindings: reset: add NPCM reset controller documentation

Link: https://lore.kernel.org/r/dbbb2ca7490a0146d9ba632fd4d9f38063e03e9f.camel@pengutronix.de
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-10 22:20:37 -08:00
Olof Johansson ef832e4cb9 This pull request contains Broadcom ARM/ARM64/MIPS-based SoCs drivers
changes for 5.6, please pull the following:
 
 - Florian provides a set of updates to the Bus Interface Unit control to
   tune it appropriately for the most recent chips: 7255, 7260, 7216, 7211
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Merge tag 'arm-soc/for-5.6/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom ARM/ARM64/MIPS-based SoCs drivers
changes for 5.6, please pull the following:

- Florian provides a set of updates to the Bus Interface Unit control to
  tune it appropriately for the most recent chips: 7255, 7260, 7216, 7211

* tag 'arm-soc/for-5.6/drivers' of https://github.com/Broadcom/stblinux:
  soc: bcm: brcmstb: biuctrl: Update programming for 7211
  soc: bcm: brcmstb: biuctrl: Update layout for A72 on 7211
  soc: bcm: brcmstb: biuctrl: Tune interface for 7255 and 7216
  soc: bcm: brcmstb: biuctrl: Tune 7260 BIU interface

Link: https://lore.kernel.org/r/20200108191114.15987-2-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-10 22:15:27 -08:00
Dmitry Osipenko 02676345e9 soc/tegra: fuse: Unmap registers once they are not needed anymore
Both Chip ID and strapping registers are now read out during of APB MISC
initialization, the registers' mapping isn't needed anymore once registers
are read. Hence let's unmap registers once they are not needed anymore,
for consistency.

Suggested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:59:43 +01:00
Dmitry Osipenko 2d9ea1934f soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
Trying to read out Chip ID before APBMISC registers are mapped won't
succeed, in a result Tegra124 gets a wrong address for the HW straps
register if machine uses an old outdated device tree.

Fixes: 297c4f3dcb ("soc/tegra: fuse: Restrict legacy code to 32-bit ARM")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:59:01 +01:00
Dmitry Osipenko c71f213fa5 soc/tegra: fuse: Warn if straps are not ready
Now both Chip ID and HW straps are becoming available at the same time,
thus we could simply check the availability of the ID in order to check
the availability of the straps. We couldn't check straps for 0x0 because
it could be a correct value.

This change didn't uncover any problems, but anyways it is nicer to have
straps verified for consistency with the Chip ID verification.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:58:48 +01:00
Dmitry Osipenko 221c057a84 soc/tegra: fuse: Cache values of straps and Chip ID registers
There is no need to re-read Chip ID and HW straps out from hardware each
time, it is a bit nicer to cache the values in memory.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:58:32 +01:00
Dmitry Osipenko 5e5eca6644 memory: tegra30-emc: Correct error message for timed out auto calibration
The code waits for auto calibration to be finished and not to be disabled.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:48:48 +01:00
Dmitry Osipenko 0f8bb9da5a memory: tegra30-emc: Firm up hardware programming sequence
Previously there was a problem where a late handshake handling caused
a memory corruption, this problem was resolved by issuing calibration
command right after changing the timing, but looks like the solution
wasn't entirely correct since calibration interval could be disabled as
well. Now programming sequence is completed immediately after receiving
handshake from CaR, without potentially long delays and in accordance to
the TRM's programming guide.

Secondly, the TRM's programming guide suggests to flush EMC writes by
reading any *MC* register before doing CaR changes. This is also addressed
now.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:48:40 +01:00
Dmitry Osipenko 51bb73f934 memory: tegra30-emc: Firm up suspend/resume sequence
The current code doesn't prevent race conditions of suspend/resume vs CCF.
Let's take exclusive control over the EMC clock during suspend in a way
that is free from race conditions.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:47:18 +01:00
Dmitry Osipenko 45f019a684 soc/tegra: regulators: Do nothing if voltage is unchanged
There is no need to re-apply the same voltage. This change is just a minor
cleanup.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:42:58 +01:00
Nicolin Chen 5f5636ef1d memory: tegra: Correct reset value of xusb_hostr
According to Tegra X1 (Tegra210) TRM, the reset value of xusb_hostr
field (bit [7:0]) should be 0x7a. So this patch simply corrects it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:34:06 +01:00
Dmitry Osipenko 19d41e5e9c soc/tegra: fuse: Add APB DMA dependency for Tegra20
Tegra20 FUSE driver depends on DMA channel presence, otherwise it fails to
probe.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 15:30:11 +01:00
Sameer Pujar 2f56acf818 bus: tegra-aconnect: Remove PM_CLK dependency
The ACONNECT bus driver does not use pm-clk interface anymore and hence
the dependency can be removed from its Kconfig option.

Fixes: 0d7dab9261 ("bus: tegra-aconnect: use devm_clk_*() helpers")
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-10 12:31:24 +01:00
Thierry Reding a127e690b0 memory: tegra: Add support for the Tegra194 memory controller
The memory and external memory controllers on Tegra194 are very similar
to their predecessors from Tegra186. Add the necessary SoC-specific data
to support the newer versions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:38:38 +01:00
Thierry Reding 4e04b88633 memory: tegra: Only include support for enabled SoCs
The memory client tables can be fairly large and they can easily be
omitted if support for the corresponding SoC is not enabled.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:35:54 +01:00
Thierry Reding 52d15dd23f memory: tegra: Support DVFS on Tegra186 and later
Add a Tegra186 (and later) EMC driver that reads the EMC DVFS tables
from BPMP and uses the EMC clock to change the external memory clock.

This currently only provides a debugfs interface to show the available
frequencies and set lower and upper limits of the allowed range. This
can be used for testing the various frequencies. The goal is to
eventually integrate this with the interconnect framework so that the
EMC frequency can be scaled based on demand from memory clients.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:35:54 +01:00
JC Kuo 3979a4c626 soc/tegra: fuse: Add Tegra194 support
This commit adds Tegra194 fuse/apbmisc support.

Signed-off-by: JC Kuo <jckuo@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:27:27 +01:00
Thierry Reding 177602b006 memory: tegra: Add system sleep support
Add system suspend/resume support for the memory controller found on
Tegra186 and later. This is required so that the SID registers can be
reprogrammed after their content was lost during system sleep.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:12:55 +01:00
Thierry Reding 6d3ba76163 memory: tegra: Extract memory client SID programming
Move programming of the memory client to SID mapping into a separate
function so that it can be reused from multiple call sites.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:12:40 +01:00
Thierry Reding 7d723c03e0 memory: tegra: Add per-SoC data for Tegra186
Instead of hard-coding the memory client table, use per-SoC data in
preparation for adding support for other SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:12:24 +01:00
Thierry Reding 0859fe9ff5 memory: tegra: Rename tegra_mc to tegra186_mc on Tegra186
This is just for consistency with the rest of the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:12:19 +01:00
Thierry Reding 8cee32b400 memory: tegra: Implement EMC debugfs interface on Tegra30
A common debugfs interface is already available on Tegra20, Tegra124,
Tegra186 and Tegra194. Implement the same interface on Tegra30 to enable
testing of the EMC frequency scaling code using a unified interface.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:09:31 +01:00
Thierry Reding 8209eefa3d memory: tegra: Implement EMC debugfs interface on Tegra20
A common debugfs interface is already available on Tegra124, Tegra186
and Tegra194. Implement the same interface on Tegra20 to enable testing
of the EMC frequency scaling code using a unified interface.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:09:16 +01:00
Thierry Reding 6b9acd9355 memory: tegra: Refashion EMC debugfs interface on Tegra124
The current debugfs interface is only partially useful. While it allows
listing supported frequencies and testing individual clock rates, it is
limited in that it can't be used to restrict the range of frequencies
that the driver is allowed to set. This is something we may want to use
to test adaptive scaling once that's implemented.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-01-09 19:05:47 +01:00
Daniel Baluta f52cdcce91 firmware: imx: Allow IMX DSP to be selected as module
IMX DSP is only needed by SOF or any other module that
wants to communicate with the DSP. When SOF is build
as a module IMX DSP is forced to be built inside the
kernel image. This is not optimal, so allow IMX DSP
to be built as a module.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-01-09 17:21:33 +08:00
Krzysztof Kozlowski 83a4c74c01 soc: imx: Enable compile testing of IMX_SCU_SOC
IMX_SCU_SOC can be compile tested to increase build coverage.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-01-09 17:20:10 +08:00
Anson Huang 18f662a738 soc: imx: Add i.MX8MP SoC driver support
Add i.MX8MP SoC driver support:

root@imx8mpevk:~# cat /sys/devices/soc0/family
Freescale i.MX

root@imx8mpevk:~# cat /sys/devices/soc0/machine
FSL i.MX8MP EVK

root@imx8mpevk:~# cat /sys/devices/soc0/soc_id
i.MX8MP

root@imx8mpevk:~# cat /sys/devices/soc0/revision
1.0

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-01-09 15:52:04 +08:00
YueHaibing 6e62bd36e9 soc: fsl: qe: remove set but not used variable 'mm_gc'
drivers/soc/fsl/qe/gpio.c: In function qe_pin_request:
drivers/soc/fsl/qe/gpio.c:163:26: warning: variable mm_gc set but not used [-Wunused-but-set-variable]

commit 1e714e54b5 ("powerpc: qe_lib-gpio: use gpiochip data pointer")
left behind this unused variable.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-01-08 16:02:48 -06:00
Olof Johansson 40a9012a3b Initial support for hierarchical CPU arrangement, managed by PSCI and its
corresponding cpuidle driver. This support is based upon using the generic
 PM domain, which already supports devices belonging to CPUs.
 
 Finally, these is a DTS patch that enables the hierarchical topology to be
 used for the Qcom 410c Dragonboard, which supports the PSCI OS-initiated
 mode.
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Merge tag 'cpuidle_psci-v5.5-rc4' of git://git.linaro.org/people/ulf.hansson/linux-pm into arm/drivers

Initial support for hierarchical CPU arrangement, managed by PSCI and its
corresponding cpuidle driver. This support is based upon using the generic
PM domain, which already supports devices belonging to CPUs.

Finally, these is a DTS patch that enables the hierarchical topology to be
used for the Qcom 410c Dragonboard, which supports the PSCI OS-initiated
mode.

* tag 'cpuidle_psci-v5.5-rc4' of git://git.linaro.org/people/ulf.hansson/linux-pm: (611 commits)
  arm64: dts: Convert to the hierarchical CPU topology layout for MSM8916
  cpuidle: psci: Add support for PM domains by using genpd
  PM / Domains: Introduce a genpd OF helper that removes a subdomain
  cpuidle: psci: Support CPU hotplug for the hierarchical model
  cpuidle: psci: Manage runtime PM in the idle path
  cpuidle: psci: Prepare to use OS initiated suspend mode via PM domains
  cpuidle: psci: Attach CPU devices to their PM domains
  cpuidle: psci: Add a helper to attach a CPU to its PM domain
  cpuidle: psci: Support hierarchical CPU idle states
  cpuidle: psci: Simplify OF parsing of CPU idle state nodes
  cpuidle: dt: Support hierarchical CPU idle states
  of: base: Add of_get_cpu_state_node() to get idle states for a CPU node
  firmware: psci: Export functions to manage the OSI mode
  dt: psci: Update DT bindings to support hierarchical PSCI states
  cpuidle: psci: Align psci_power_state count with idle state count
  Linux 5.5-rc4
  locks: print unsigned ino in /proc/locks
  riscv: export flush_icache_all to modules
  riscv: reject invalid syscalls below -1
  riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
  ...

Link: https://lore.kernel.org/r/20200102160820.3572-1-ulf.hansson@linaro.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-01-08 10:26:29 -08:00
Yangtao Li 34efc83727 mailbox: armada-37xx-rwtm: convert to devm_platform_ioremap_resource
Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2020-01-08 10:41:52 +01:00
Yangtao Li f3ba1c86c2 memory: mvebu-devbus: convert to devm_platform_ioremap_resource
Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2020-01-08 10:39:25 +01:00
Marek Behún 54dd5fcb7c bus: moxtet: declare moxtet_bus_type as static
This symbol is not meant to be used from elsewhere.

Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2020-01-08 10:35:29 +01:00
Dan Carpenter e8acad4d83 firmware: turris-mox-rwtm: small white space cleanup
This patch deletes a stray tab.

Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: Colin King <colin.king@canonical.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2020-01-08 10:35:23 +01:00
John Stultz e2d5e8332c reset: qcom-aoss: Allow CONFIG_RESET_QCOM_AOSS to be a tristate
Allow CONFIG_RESET_QCOM_AOSS to be set as as =m to allow for the
driver to be loaded from a modules.

Also replaces the builtin_platform_driver() line with
module_platform_driver() and adds a MODULE_DEVICE_TABLE() entry.

Cc: Todd Kjos <tkjos@google.com>
Cc: Alistair Delva <adelva@google.com>
Cc: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2020-01-08 10:26:14 +01:00
Elliot Berman 9a434cee77 firmware: qcom_scm: Dynamically support SMCCC and legacy conventions
Dynamically support SMCCCC and legacy conventions by detecting which
convention to use at runtime. qcom_scm_call_atomic and qcom_scm_call can
then be moved in qcom_scm.c and use underlying convention backend as
appropriate. Thus, rename qcom_scm-64,-32 to reflect that they are
backends for -smc and -legacy, respectively.

Also add support for making SCM calls earlier than when SCM driver
probes to support use cases such as qcom_scm_set_cold_boot_addr. Support
is added by lazily initializing the convention and guarding the query
with a spin lock.  The limitation of these early SCM calls is that they
cannot use DMA, as in the case of >4 arguments for SMC convention and
any non-atomic call for legacy convention.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-18-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:43 -08:00
Elliot Berman 57d3b81671 firmware: qcom_scm: Remove thin wrappers
qcom_scm-32 and qcom_scm-64 implementations are nearly identical, so
make qcom_scm_call and qcom_scm_call_atomic unique to each and the SCM
descriptor creation common to each. There are the following catches:
- __qcom_scm_is_call_available is still in each -32,-64 implementation
  as the argument is unique to each convention
- For some functions, only one implementation was provided in -32 or
  -64. The actual implementation was moved into qcom_scm.c
- io_writel and io_readl in -64 were non-atomic calls and in -32 they
  were. Atomic is the better option, so use it.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-17-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:40 -08:00
Elliot Berman 65f0c90b7d firmware: qcom_scm: Order functions, definitions by service/command
Definitions throughout qcom_scm are loosely grouped and loosely ordered.
Sort all the functions/definitions by service ID/command ID to improve
sanity when needing to add new functionality to this driver.

Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-16-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:38 -08:00
Elliot Berman 59b6cf3046 firmware: qcom_scm-32: Add device argument to atomic calls
Add unused "device" parameter to reduce merge friction between SMCCC and
legacy based conventions in an upcoming patch.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-15-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:35 -08:00
Elliot Berman 84528486ad firmware: qcom_scm-32: Create common legacy atomic call
Per [1], legacy calling convention supports up to 5 arguments and 3
return values. Create one function to support this combination, and
remove the original "atomic1" and "atomic2" variants for 1 and 2
arguments. This more closely aligns scm_legacy implementation with
scm_smc implementation.

[1]: https://source.codeaurora.org/quic/la/kernel/msm-4.9/tree/drivers/soc/qcom/scm.c?h=kernel.lnx.4.9.r28-rel#n1024

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-14-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:32 -08:00
Elliot Berman 590e92809a firmware: qcom_scm-32: Move SMCCC register filling to qcom_scm_call
Move SMCCC register filling to qcom_scm_call so that __scm_legacy_do
only needs to concern itself with retry mechanism. qcom_scm_call then is
responsible for translating qcom_scm_desc into the complete set of
register arguments and passing onto qcom_scm_call_do.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-13-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:29 -08:00
Elliot Berman efd2b15c21 firmware: qcom_scm-32: Use qcom_scm_desc in non-atomic calls
Use qcom_scm_desc in non-atomic calls to remove legacy convention
details from every SCM wrapper function. Implementations were copied
from qcom_scm-64 and are functionally equivalent when using the
qcom_scm_desc and qcom_scm_res structs.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-12-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:27 -08:00
Elliot Berman fd62c30b6b firmware: qcom_scm-32: Add funcnum IDs
Add SCM_LEGACY_FNID macro to qcom_scm-32.

Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-11-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07 22:14:24 -08:00