Add the ID for the Qualcomm SM4450 SoC.
Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230731080043.38552-7-quic_tengfan@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the ID for the Qualcomm SM4450 SoC.
Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230731080043.38552-6-quic_tengfan@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Some boards have a retimer/redriver between the SuperSpeed
PHY and the USB-C connector to compensates signal integrity
losses mainly due to PCB & transmission cables.
Add support for an optional retimer-switch in the USB-C
connector graph.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v5-2-9221cd300903@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This reverts commit 981be238e1d28e156aa9da2a8722f86f02fd0453 because it
was totally bogus and duplicated existing minItems:
ruamel.yaml.constructor.DuplicateKeyError: while constructing a mapping
Documentation/devicetree/bindings/power/qcom,kpss-acc-v2.yaml: ignoring, error parsing file
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230724090109.19489-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
There are three categories of compatibles within the driver:
1. Ones which were introduced without a qcom,scm fallback
2. Ones which were introduced with a qcom,scm fallback
3. Ones which were defined but never used
Keep 1 for backwards compatibility and axe 2 & 3.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230623-topic-scm_cleanup-v2-3-9db8c583138d@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
If devm_clk_get_optional throws an error, something is really wrong.
It may be a probe deferral, or it may be a problem with the clock
provider.
Regardless of what it may be, it should definitely not be ignored.
Stop doing that.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230623-topic-scm_cleanup-v2-2-9db8c583138d@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The code for handling more than 1 clock is a bit messy and requires
one to add new, SoC-specific compatibles if one wants to attach a clock.
Switch devm_clk_get to devm_clk_get_optional to prevent throwing it
from throwing errors when the clock is absent and defer checking the
clock requirements to dt schema.
This lets us get rid of compatibles that aren't necessary for backwards
compatibility *and* will hopefully prevent the addition of meaningless
new compatibles.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230623-topic-scm_cleanup-v2-1-9db8c583138d@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The description of reg[1] says that register is optional. Adjust
minItems to make it truly optional.
Fixes: 4260ddfb64 ("dt-bindings: arm: msm: Convert and split kpss-acc driver Documentation to yaml")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230627-topic-more_bindings-v1-9-6b4b6cd081e5@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
in gsbi_probe(), the return value of function clk_prepare_enable()
should be checked, since it may fail. using devm_clk_get_enabled()
instead of devm_clk_get() and clk_prepare_enable() can avoid this
problem.
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Link: https://lore.kernel.org/r/20230720140834.33557-1-ruc_gongyuanjun@163.com
[bjorn: Dropped unnecessary "ret" variable]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add Generic RPMh Power Domain indexes that can be used
for all the Qualcomm SoC henceforth.
The power domain indexes of these bindings are based on compatibility
with current targets like SM8[2345]50 targets.
Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/1689744162-9421-2-git-send-email-quic_rohiagar@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714175142.4067795-1-robh@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add a simple driver for the qcom,rpm-proc compatible that registers the
"smd-edge" and populates other children defined in the device tree.
Note that the DT schema belongs to the remoteproc subsystem while this
driver is added inside soc/qcom. I argue that the RPM *is* a remoteproc,
but as an implementation detail in Linux it can currently not benefit
from anything provided by the remoteproc subsystem. The RPM firmware is
usually already loaded and started by earlier components in the boot
chain and is not meant to be ever restarted.
To avoid breaking existing kernel configurations the driver is always
built when smd-rpm.c is also built. They belong closely together anyway.
To avoid build errors CONFIG_RPMSG_QCOM_SMD must be also built-in if
rpm-proc is.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-9-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Rather than looking up a dummy item from SMEM, use the new
qcom_smem_is_available() function to make the code more clear
(and reduce the overhead slightly).
Add the same check to qcom_smd_register_edge() as well to ensure that
it only succeeds if SMEM is already available - if a driver calls the
function and SMEM is not available yet then the initial state will be
read incorrectly and the RPMSG devices might never become available.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-8-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Avoid having to look up a dummy item from SMEM to detect if it is
already available or if we need to defer probing.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-7-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
On Qualcomm platforms, most subsystems (e.g. audio/modem DSP) are
described as remote processors in the device tree, with a dedicated
node where properties and services related to them can be described.
The Resource Power Manager (RPM) is also such a subsystem, with a
remote processor that is running a special firmware. Unfortunately,
the RPM never got a dedicated node representing it properly in the
device tree. Most of the RPM services are described below a top-level
/smd or /rpm-glink node.
However, SMD/GLINK is just one of the communication channels to the RPM
firmware. For example, the MPM interrupt functionality provided by the
RPM does not use SMD/GLINK but writes directly to a special memory
region allocated by the RPM firmware in combination with a mailbox.
Currently there is no good place in the device tree to describe this
functionality. It doesn't belong below SMD/GLINK but it's not an
independent top-level device either.
Introduce a new "qcom,rpm-proc" compatible that allows describing the
RPM as a remote processor/subsystem like all others. The SMD/GLINK node
is moved to a "smd-edge"/"glink-edge" subnode consistent with other
existing bindings. Additional subnodes (e.g. interrupt-controller for
MPM, rpm-master-stats) can be also added there.
Deprecate using the old top-level /smd node since all SMD edges
are now specified as subnodes of the remote processor.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-6-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Semantically glink-edge and glink-rpm-edge are similar: Both describe
the communication channels to a remote processor. The RPM glink-edge is
a special case that needs slightly different properties but otherwise
it is used exactly the same.
To improve consistency use the same "glink-edge" node name also for
glink-rpm-edge. Drop the $nodename from qcom,glink-edge.yaml to avoid
matching the wrong schema. qcom,glink-edge.yaml is always referenced
explicitly from other schemas. This will already ensure that the nodes
are being checked, so it's not necessary to bind to all nodes named
"glink-edge".
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-5-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
There is an ever growing list of compatibles in the smd-rpm.c driver.
A fallback compatible would help here but would still require keeping
the current list around for backwards compatibility.
As an alternative, let's switch the driver to match the rpmsg_device_id
instead, which is always "rpm_requests" on all platforms. Add a check
to ensure that there is a device tree node defined for the device since
otherwise the of_platform_populate() call will operate on the root node (/).
Similar approaches with matching rpmsg_device_id are already used in
qcom_sysmon, qcom_glink_ssr, qrtr, and rpmsg_wwan_ctrl.
Tested-by: Konrad Dybcio <konrad.dybcio@linaro.org> # SM6375 (G-Link)
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-4-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
To avoid several more small patches adding new RPM compatibles in the
future, add MDM9607, MSM8610, MSM8917, MSM8937 and MSM8952 at once.
All of these have been worked on over the time by some people and are
definitely compatible as-is with the smd-rpm driver.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-3-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
MSM8909 is using qcom,smd-channels but is missing in the list, add it
there as well.
Fixes: 709d473dd5 ("dt-bindings: soc: qcom: smd-rpm: Add MSM8909")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-2-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Some of the enum entries are not properly ordered, fix that.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-1-a07dcdefd918@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Just like all other Qualcomm SoCs, SC8280XP SCM should be fed an
interconnect path. Do so.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230622-topic-8280scmicc-v1-1-6ef318919ea5@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
When tracing messages written to the RSC it's very useful to know the
type of TCS being targeted, in particular if/when the code borrows a
WAKE TCS for ACTIVE votes.
Add the "state" of the message to the traced information.
While at it, drop the "send-msg:" substring, as this is already captured
by the trace event itself.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230620230058.428833-1-quic_bjorande@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The debugfs dump of Command DB relies uses %*pEp to print the resource
identifiers, with escaping of non-printable characters.
But p (ESCAPE_NP) does not escape NUL characters, so for identifiers
less than 8 bytes in length the output will retain these.
This does not cause an issue while looking at the dump in the terminal
(no known complaints at least), but when programmatically consuming the
debugfs output the extra characters are unwanted.
Change the fixed 8-byte sizeof() to a dynamic strnlen() to avoid
printing these NUL characters.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230620213703.283583-1-quic_bjorande@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the compatible for the OCMEM found on msm8226 which compared to
msm8974 only has a core clock and no iface clock.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20230506-msm8226-ocmem-v3-4-79da95a2581f@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Some platforms such as msm8226 do not have an iface clk. Since clk_bulk
APIs don't offer to a way to treat some clocks as optional simply add
core_clk and iface_clk members to our drvdata.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20230506-msm8226-ocmem-v3-3-79da95a2581f@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Use dev_err_probe in the driver probe function where useful, to simplify
getting PTR_ERR and to ensure the underlying errors are included in the
error message.
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20230506-msm8226-ocmem-v3-2-79da95a2581f@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Since we're using these two macros to read a value from a register, we
need to use the FIELD_GET instead of the FIELD_PREP macro, otherwise
we're getting wrong values.
So instead of:
[ 3.111779] ocmem fdd00000.sram: 2 ports, 1 regions, 512 macros, not interleaved
we now get the correct value of:
[ 3.129672] ocmem fdd00000.sram: 2 ports, 1 regions, 2 macros, not interleaved
Fixes: 88c1e9404f ("soc: qcom: add OCMEM driver")
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Link: https://lore.kernel.org/r/20230506-msm8226-ocmem-v3-1-79da95a2581f@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Currently we use predefined initial threshold values. This works, but
does not really scale well with more and more SoCs gaining bwmon support,
as the necessary kickoff values may differ between platforms due to memory
type and/or controller setup.
All of the data we need for that is already provided in the device tree,
anyway.
Change the thresholds to:
* low = 0 (as we've been doing up until now)
* med = high = BW_MIN
Throughput going below the med threshold nudges bwmon into signaling
that we should slow down (e.g. if we inherited too high bandwidth
from the bootloader).
Throughput going above the high threshold nudges bwmon into signaling
that we should speed up so as not to choke the bus traffic due to
insufficient transfer rates.
F_MIN is a perfect initial value for both of these cases - if we go
above it (and there's a 99.99% chance it'll happen at boot time), we
should definitely make the memory go faster, whereas if we go below it,
we should slow down, no matter what performance state we were at before
(it's only possible for them to be >= FMIN).
This only changes the values programmed at probe time, as high and med
thresholds are updated at interrupt, also based on the OPP table from DT.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230610-topic-bwmon_opp-v2-1-0d25c1ce7dca@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
We just sorted the entries and fields last release, so just out of a
perverse sense of curiosity, I decided to see if we can keep things
ordered for even just one release.
The answer is "No. No we cannot".
I suggest that all kernel developers will need weekly training sessions,
involving a lot of Big Bird and Sesame Street. And at the yearly
maintainer summit, we will all sing the alphabet song together.
I doubt I will keep doing this. At some point "perverse sense of
curiosity" turns into just a cold dark place filled with sadness and
despair.
Repeats: 80e62bc848 ("MAINTAINERS: re-sort all entries and fields")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- swiotlb area sizing fixes (Petr Tesarik)
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Merge tag 'dma-mapping-6.5-2023-07-09' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- swiotlb area sizing fixes (Petr Tesarik)
* tag 'dma-mapping-6.5-2023-07-09' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: reduce the number of areas to match actual memory pool size
swiotlb: always set the number of areas before allocating the pool
boot reordering work
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Merge tag 'x86_urgent_for_v6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fpu fix from Borislav Petkov:
- Do FPU AP initialization on Xen PV too which got missed by the recent
boot reordering work
* tag 'x86_urgent_for_v6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/xen: Fix secondary processors' FPU initialization
On shutdown or kexec, the kernel tries to park the non-boot CPUs with an
INIT IPI. But the same code path is also used by the crash utility. If the
CPU which panics is not the boot CPU then it sends an INIT IPI to the boot
CPU which resets the machine. Prevent this by validating that the CPU which
runs the stop mechanism is the boot CPU. If not, leave the other CPUs in
HLT.
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Merge tag 'x86-core-2023-07-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix for the mechanism to park CPUs with an INIT IPI.
On shutdown or kexec, the kernel tries to park the non-boot CPUs with
an INIT IPI. But the same code path is also used by the crash utility.
If the CPU which panics is not the boot CPU then it sends an INIT IPI
to the boot CPU which resets the machine.
Prevent this by validating that the CPU which runs the stop mechanism
is the boot CPU. If not, leave the other CPUs in HLT"
* tag 'x86-core-2023-07-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smp: Don't send INIT to boot CPU
* Fix an uninitialized variable warning.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'xfs-6.5-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Darrick Wong:
"Nothing exciting here, just getting rid of a gcc warning that I got
tired of seeing when I turn on gcov"
* tag 'xfs-6.5-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix uninit warning in xfs_growfs_data
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Merge tag '6.5-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- fix potential use after free in unmount
- minor cleanup
- add worker to cleanup stale directory leases
* tag '6.5-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Add a laundromat thread for cached directories
smb: client: remove redundant pointer 'server'
cifs: fix session state transition to avoid use-after-free issue
