A couple of small fixes across the board: ACPI support on FUSE no longer
exposes duplicate SoC information, speedo IDs for Tegra210 are updated,
some comments see typo fixes or kerneldoc additions. Finally, support
for USB wake events is added on Tegra234, which allow these systems to
resume from suspend on USB activity.
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Merge tag 'tegra-for-6.19-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
soc/tegra: Changes for v6.19-rc1
A couple of small fixes across the board: ACPI support on FUSE no longer
exposes duplicate SoC information, speedo IDs for Tegra210 are updated,
some comments see typo fixes or kerneldoc additions. Finally, support
for USB wake events is added on Tegra234, which allow these systems to
resume from suspend on USB activity.
* tag 'tegra-for-6.19-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Add USB wake events for Tegra234
soc/tegra: pmc: Document tegra_pmc.syscore field
soc/tegra: pmc: Don't fail if "aotag" is not present
soc/tegra: fuse: speedo-tegra210: Add SoC speedo 2
soc/tegra: fuse: speedo-tegra210: Update speedo IDs
soc/tegra: Resolve a spelling error in the tegra194-cbb.c
soc/tegra: fuse: Do not register SoC device on ACPI boot
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add a parameter to syscore operations to allow passing contextual data,
which in turn enables refactoring of drivers to make them independent of
global data. This initially only contains the API changes along with the
updates for existing drivers. Subsequent work will make use of this to
improve drivers.
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Merge tag 'tegra-for-6.19-syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
syscore: Changes for v6.19-rc1
Add a parameter to syscore operations to allow passing contextual data,
which in turn enables refactoring of drivers to make them independent of
global data. This initially only contains the API changes along with the
updates for existing drivers. Subsequent work will make use of this to
improve drivers.
* tag 'tegra-for-6.19-syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
syscore: Pass context data to callbacks
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fix a device leak. Could go into v6.18 as a fix, but since this problem
has existed for a long time and nobody has reported it before it doesn't
seem critical enough and sufficient to get it into 6.19 and then
backported.
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Merge tag 'tegra-for-6.19-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
amba: Fixes for v6.19-rc1
Fix a device leak. Could go into v6.18 as a fix, but since this problem
has existed for a long time and nobody has reported it before it doesn't
seem critical enough and sufficient to get it into 6.19 and then
backported.
* tag 'tegra-for-6.19-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
amba: tegra-ahb: Fix device leak on SMMU enable
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. ChipID driver: Add support for identifying Exynos8890 and Exynos9610.
2. PMU driver: Allow specifying list of valid registers for the custom
regmap used on Google GS101 SoC. The PMU (Power Management Unit) on
that SoC uses more complex access to registers than simple MMIO and
invalid registers trigger aborts halting the system.
3. Few minor cleanups.
4. Several new bindings for compatible devices.
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Merge tag 'samsung-drivers-6.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung SoC drivers for v6.19
1. ChipID driver: Add support for identifying Exynos8890 and Exynos9610.
2. PMU driver: Allow specifying list of valid registers for the custom
regmap used on Google GS101 SoC. The PMU (Power Management Unit) on
that SoC uses more complex access to registers than simple MMIO and
invalid registers trigger aborts halting the system.
3. Few minor cleanups.
4. Several new bindings for compatible devices.
* tag 'samsung-drivers-6.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
dt-bindings: soc: samsung: exynos-pmu: allow mipi-phy subnode for Exynos7870 PMU
soc: samsung: exynos-chipid: use a local dev variable
dt-bindings: soc: samsung: exynos-sysreg: add gs101 hsi0 and misc compatibles
dt-bindings: soc: samsung: exynos-sysreg: add power-domains
soc: samsung: gs101-pmu: implement access tables for read and write
soc: samsung: exynos-pmu: move some gs101 related code into new file
soc: samsung: exynos-pmu: allow specifying read & write access tables for secure regmap
dt-bindings: samsung: exynos-sysreg: add exynos7870 sysregs
soc: samsung: exynos-chipid: add exynos8890 SoC support
dt-bindings: hwinfo: samsung,exynos-chipid: add exynos8890-chipid compatible
dt-bindings: soc: samsung: exynos-pmu: add exynos8890 compatible
soc: samsung: exynos-pmu: Annotate online/offline functions with __must_hold
soc: samsung: exynos-chipid: Add exynos9610 SoC support
dt-bindings: hwinfo: samsung,exynos-chipid: add exynos9610 compatible
dt-bindings: soc: samsung: exynos-sysreg: Add Exynos990 PERIC0/1 compatibles
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Tegra drivers: Several cleanups (dev_err_probe(), error messages).
2. Renesas RPC IF: Add system suspend support.
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Merge tag 'memory-controller-drv-6.19-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v6.19
1. Tegra drivers: Several cleanups (dev_err_probe(), error messages).
2. Renesas RPC IF: Add system suspend support.
* tag 'memory-controller-drv-6.19-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: tegra186-emc: Fix missing put_bpmp
memory: renesas-rpc-if: Add suspend/resume support
memory: tegra30-emc: Add the SoC model prefix to functions
memory: tegra20-emc: Add the SoC model prefix to functions
memory: tegra186-emc: Add the SoC model prefix to functions
memory: tegra124-emc: Add the SoC model prefix to functions
memory: tegra124-emc: Simplify and handle deferred probe with dev_err_probe()
memory: tegra186-emc: Simplify and handle deferred probe with dev_err_probe()
memory: tegra20-emc: Simplify and handle deferred probe with dev_err_probe()
memory: tegra30-emc: Simplify and handle deferred probe with dev_err_probe()
memory: tegra30-emc: Do not print error on icc_node_create() failure
memory: tegra20-emc: Do not print error on icc_node_create() failure
memory: tegra186-emc: Do not print error on icc_node_create() failure
memory: tegra124-emc: Do not print error on icc_node_create() failure
memory: tegra124-emc: Simplify return of emc_init()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Keep the WDTRSTCR.RESBAR2S bit in the default state on R-Car Gen4.
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Merge tag 'renesas-drivers-for-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into soc/drivers
Renesas driver updates for v6.19
- Keep the WDTRSTCR.RESBAR2S bit in the default state on R-Car Gen4.
* tag 'renesas-drivers-for-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
soc: renesas: rcar-rst: Keep RESBAR2S in default state
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit a52ddb98a6 ("memory: tegra186-emc: Simplify and handle deferred
probe with dev_err_probe()") accidently dropped a call to 'put_bpmp' to
release a handle to the BPMP when getting the EMC clock fails. Fix this
by restoring the 'goto put_bpmp' if devm_clk_get() fails.
Fixes: a52ddb98a6 ("memory: tegra186-emc: Simplify and handle deferred probe with dev_err_probe()")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20251106190550.1776974-1-jonathanh@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add USB wake events for Tegra234 so that system can be woken up from
suspend when USB devices hot-plug/unplug event is detected.
Signed-off-by: Haotien Hsu <haotienh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Make sure to drop the reference taken to the AHB platform device when
looking up its driver data while enabling the SMMU.
Note that holding a reference to a device does not prevent its driver
data from going away.
Fixes: 89c788bab1 ("ARM: tegra: Add SMMU enabler in AHB")
Cc: stable@vger.kernel.org # 3.5
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The "aotog" is an optional aperture, so if that aperture is not defined
for a given device, then initialise the 'aotag' pointer to NULL instead
of returning an error. Note that the PMC driver will not use 'aotag'
pointer if initialised to NULL.
Co-developed-by: Shardar Mohammed <smohammed@nvidia.com>
Signed-off-by: Shardar Mohammed <smohammed@nvidia.com>
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Jetson Nano series of modules only have 2 EMC table entries,
different from other SoC SKUs. As the EMC driver uses the SoC speedo ID
to populate the EMC OPP tables, add a new speedo ID to uniquely identify
this.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Existing code only sets CPU and GPU speedo IDs 0 and 1. The CPU DVFS
code supports 11 IDs and nouveau supports 5. This aligns with what the
downstream vendor kernel supports. Align SKUs with the downstream list.
The Tegra210 CVB tables were added in the first referenced fixes commit.
Since then, all Tegra210 SoCs have tried to scale to 1.9 GHz, when the
supported devkits are only supposed to scale to 1.5 or 1.7 GHZ.
Overclocking should not be the default state.
Fixes: 2b2dbc2f94 ("clk: tegra: dfll: add CVB tables for Tegra210")
Fixes: 579db6e5d9 ("arm64: tegra: Enable DFLL support on Jetson Nano")
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
On Tegra platforms using ACPI, the SMCCC driver already registers the
SoC device. This makes the registration performed by the Tegra fuse
driver redundant.
When booted via ACPI, skip registering the SoC device and suppress
printing SKU information from the Tegra fuse driver, as this information
is already provided by the SMCCC driver.
Fixes: 972167c690 ("soc/tegra: fuse: Add ACPI support for Tegra194 and Tegra234")
Cc: stable@vger.kernel.org
Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Several drivers can benefit from registering per-instance data along
with the syscore operations. To achieve this, move the modifiable fields
out of the syscore_ops structure and into a separate struct syscore that
can be registered with the framework. Add a void * driver data field for
drivers to store contextual data that will be passed to the syscore ops.
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Not all system controller registers are accessible from Linux. Accessing
such registers generates synchronous external abort. Populate the
readable_reg and writeable_reg members of the regmap config to inform the
regmap core which registers can be accessed. The list will need to be
updated whenever new system controller functionality is exported through
regmap.
Fixes: 2da2740fb9 ("soc: renesas: rz-sysc: Add syscon/regmap support")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251105070526.264445-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Exynos7870 PMU is already documented in schema. Add Exynos7870's PMU
compatible to the list of nodes which allow a MIPI PHY driver.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251031-exynos7870-drm-dts-v4-1-c1f77fb16b87@disroot.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Unlike Gen2, Gen4 has bit 15 of WDTRSTCR register also used. Keep it in
the default state for the V3U firmware workaround.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251017114234.2968-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
On RZ/G3E using PSCI, s2ram powers down the SoC. Add suspend/resume
callbacks to control spi/spix2 clocks.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20251019180940.157088-1-biju.das.jz@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add dedicated compatibles for gs101 hsi0 and misc sysreg controllers to the
documentation.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251013-automatic-clocks-v1-1-72851ee00300@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
On gs101 only, sysreg can be part of a power domain, so we need to
allow the relevant property 'power-domains' for the relevant
compatibles google,gs101-*-sysreg.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251010-power-domains-dt-bindings-soc-samsung-exynos-sysreg-v2-1-552f5787a3f3@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Accessing non-existent PMU registers causes an SError, halting the
system.
Implement read and write access tables for the gs101-PMU to specify
which registers are read- and/or writable to avoid that SError.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-3-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To avoid cluttering common code, move most of the gs101 code into a new
file, gs101-pmu.c
More code is going to be added for gs101 - having it all in one file
helps keeping the common code (file) more readable. While at it, rename
variables 'ctx' to 'context' for consistency.
No functional change.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-2-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Accessing non-existent PMU registers causes an SError, halting the
system.
regmap can help us with that by allowing to pass the list of valid
registers as part of the config during creation. When this driver
creates a new regmap itself rather than relying on
syscon_node_to_regmap(), it's therefore easily possible to hook in
custom access tables for valid read and write registers.
Specifying access tables avoids SErrors for invalid registers and
instead the regmap core can just return an error. Outside drivers, this
is also helpful when using debugfs to access the regmap.
Make it possible for drivers to specify read and write tables to be
used on creation of the secure regmap by adding respective fields to
struct exynos_pmu_data. Also add kerneldoc to same struct while
updating it.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-1-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add exynos8890 information to soc_ids tables. This SoC product id
is "0xE8890000".
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Document the samsung,exynos8890-chipid compatible. The registers are
entirely compatible with "samsung,exynos4210-chipid".
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add exynos8890-pmu compatible to the bindings documentation. Since
Samsung, as usual, reuses devices from older designs, use the
samsung,exynos7-pmu compatible.
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Annotate functions writing to PMU registers to online and offline CPUs
as __must_hold() the necessary spinlock for code correctness. These are
static functions so possibility of mistakes is low here, but
__must_hold() serves as self-documenting code.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Exynos9610's product ID is "0xE9610000". Add this ID to the IDs
table along with the name of the SoC.
Signed-off-by: Alexandru Chimac <alex@chimac.ro>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add a compatible for the "samsung,exynos9610-chipid" node, used by
Exynos9610 platforms.
Signed-off-by: Alexandru Chimac <alex@chimac.ro>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add compatible strings for Exynos990 PERIC0 and PERIC1 system register
controllers.
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Replace "tegra_emc" with "tegra30_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Replace "tegra_emc" with "tegra20_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Replace "tegra_emc" with "tegra186_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Replace "tegra_emc" with "tegra124_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Also fix missing new line in error message of devm_devfreq_add_device().
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
emc_init() returns always success, so just drop the return value to
simplify it.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
