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2024-07-04iommu: Remove sva handle listLu Baolu3-10/+54
The struct sva_iommu represents an association between an SVA domain and a PASID of a device. It's stored in the iommu group's pasid array and also tracked by a list in the per-mm data structure. Removes duplicate tracking of sva_iommu by eliminating the list. Signed-off-by: Lu Baolu <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2024-07-04iommu: Introduce domain attachment handleLu Baolu3-16/+25
Currently, when attaching a domain to a device or its PASID, domain is stored within the iommu group. It could be retrieved for use during the window between attachment and detachment. With new features introduced, there's a need to store more information than just a domain pointer. This information essentially represents the association between a domain and a device. For example, the SVA code already has a custom struct iommu_sva which represents a bond between sva domain and a PASID of a device. Looking forward, the IOMMUFD needs a place to store the iommufd_device pointer in the core, so that the device object ID could be quickly retrieved in the critical fault handling path. Introduce domain attachment handle that explicitly represents the attachment relationship between a domain and a device or its PASID. Co-developed-by: Jason Gunthorpe <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Lu Baolu <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2024-07-04macintosh/mac_hid: add MODULE_DESCRIPTION()Jeff Johnson1-0/+1
Fix the make W=1 warning: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/macintosh/mac_hid.o Signed-off-by: Jeff Johnson <[email protected]> [mpe: Change the description to just "Mouse button 2+3 emulation"] Signed-off-by: Michael Ellerman <[email protected]> Link: https://msgid.link/[email protected]
2024-07-04iommu/arm-smmu-qcom: Register the TBU driver in qcom_smmu_impl_initGeorgi Djakov3-16/+42
Currently the TBU driver will only probe when CONFIG_ARM_SMMU_QCOM_DEBUG is enabled. The driver not probing would prevent the platform to reach sync_state and the system will remain in sub-optimal power consumption mode while waiting for all consumer drivers to probe. To address this, let's register the TBU driver in qcom_smmu_impl_init(), so that it can probe, but still enable its functionality only when the debug option in Kconfig is enabled. Reported-by: Dmitry Baryshkov <[email protected]> Closes: https://lore.kernel.org/r/CAA8EJppcXVu72OSo+OiYEiC1HQjP3qCwKMumOsUhcn6Czj0URg@mail.gmail.com Fixes: 414ecb030870 ("iommu/arm-smmu-qcom-debug: Add support for TBUs") Signed-off-by: Georgi Djakov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2024-07-04thermal: core: constify 'type' in devm_thermal_of_cooling_device_register()Krzysztof Kozlowski1-1/+1
The 'type' string passed to thermal_of_cooling_device_register() is a 'const char *', so do the same in the devm interface. Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Rafael J. Wysocki <[email protected]>
2024-07-04ACPI: video: Use strscpy() instead of strcpy()Muhammad Qasim Abdul Majeed1-4/+4
Replace strcpy() with strscpy() in the ACPI backlight code. strcpy() has been deprecated because it is generally unsafe, so help to eliminate if from the kernel source. Link: https://github.com/KSPP/linux/issues/88 Signed-off-by: Muhammad Qasim Abdul Majeed <[email protected]> Link: https://patch.msgid.link/[email protected] [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <[email protected]>
2024-07-04wifi: iwlwifi: mvm: re-enable MLOMiri Korenblit1-1/+1
MLO was temporarily disabled by commit 5f404005055 ("wifi: iwlwifi: mvm: disable MLO for the time being"), until it will stabilize. Now, that all the bugs were fixed and the minimum FW version was bumped to a stable one, we can re-enable MLO back. Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703132713.8f77a71c3902.Ib302054cbd8fba82db97eb5298b2aaf8bbe106df@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: Add support for LARI_CONFIG_CHANGE_CMD v12Anjaneyulu2-1/+9
Add support for activate/deactivate unii4 in USA, Canada and WW by reading DSM function 8 from UEFI or ACPI and sending it to the FW. Signed-off-by: Anjaneyulu <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.674604cbb6d1.Ibb946ae8ce7a760940a3c9d101e7f4f1808c43e4@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: Remove debug messageMukesh Sisodiya1-12/+1
Debug logs related to reset_fw are logged with all notification/response and polluting the trace. Remove the debug message related to reset_fw setting when dump is collected. Signed-off-by: Mukesh Sisodiya <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.8fc59cb17526.Ibb5d68b2fe5f7df709db3570de55a566d5af3f24@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: document remaining mvm dataJohannes Berg1-0/+29
Many iwl_mvm_vif members are not documented, add that. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.371664e5e8cd.I593ebee1ab984554b6d269dc2dddc67fbf3bb537@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: fw: api: fix missing RX descriptor kernel-docJohannes Berg1-0/+8
The v1/v3 remaining bits are not annotated in kernel-doc, fix that. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.d7adf8b235fe.I91f75e292d1648f61e5e341e1fe58096f858853d@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: document PPAG table command union correctlyJohannes Berg1-3/+6
This is not documented correctly, fix it. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.2ff5ee61e9ec.I3a1299061e472490c38a9fff4bea319ba20f313a@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: fw: api: add puncturing to PHY context docsJohannes Berg1-0/+1
Document the puncture_mask field in the PHY context. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.8ba6536ea36b.I181d8da205a14f4fcbf1d8cc6011dcf194a1638a@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: fw: api: mac: fix kernel-docJohannes Berg1-0/+7
Fix kernel-doc for MAC context APIs. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.a7179f1b0e7e.Idd7ce381960707978ff0b16035101a2a725a4fd9@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: fw: api: fix memory region kernel-docJohannes Berg1-16/+18
Add the missing special_mem union member and use constant formatting (%) for the type constants. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.9344b2b94d45.Id770b4f1893308ba43fc039a8851c526312ad2b5@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: add missing string for ROC EMLSR blockJohannes Berg1-0/+1
This should be labeled for the debug output, add the missing string. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.03d428f4ff4d.I858f17a5173fe8337cea4e7665fec00dbb15e514@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: release TXQ lock during reclaimBenjamin Berg3-33/+54
Much of the work during reclaim can be done without holding the TXQ lock and releasing the lock means that command submission can happen at the same time. Add a new reclaim_lock to prevent parallel cleanup. Release the lock while working with an internal copy of the txq->read_ptr and only take the lock again when updating the read pointer after the cleanup is done. Signed-off-by: Benjamin Berg <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.2a81021d49ac.I53698ae92fb75a0461d41176db115462cf8be1cd@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: keep BHs disabled when TXing from reclaimBenjamin Berg1-2/+2
During reclaim, we may release the txq->lock spinlock in order to call iwl_trans_tx to queue new frames. The iwl_trans_tx function expects to be called with BHs disabled and iwl_pcie_reclaim is most of the times called with BHs disabled already. However, reclaim can also happen after flushing a STA and in that case BHs will not be disabled. Solve this corner case by only releasing the spinlock but keeping BHs disabled. Signed-off-by: Benjamin Berg <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.5d12e0e54e9f.Ic53a7ff75f1163eb38bdcf5d66b503e91e6ce5ca@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: use already mapped data when TXing an AMSDUBenjamin Berg2-22/+63
The previous commits added mappings for the SKB and TSO page. This switches the code to use these mappings instead of creating new ones. Signed-off-by: Benjamin Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Link: https://patch.msgid.link/20240703125541.35d89c5e4ae8.I4feb8d34e7b30768d21365ec22c944bacc274d0b@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: keep the TSO and workaround pages mappedBenjamin Berg3-17/+95
Map the pages when allocating them so that we will not need to map each of the used fragments at a later point. For now the mapping is not used, this will be changed in a later commit. Signed-off-by: Benjamin Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Link: https://patch.msgid.link/20240703125541.7ced468fe431.Ibb109867dc680c37fe8d891e9ab9ef64ed5c5d2d@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: map entire SKB when sending AMSDUsBenjamin Berg4-21/+128
This adds logic to map the entire SKB for AMSDUs. The required scatter gather list is allocated together with the space for TSO headers. Unmapping happens again when free'ing the TSO header page. For now the mapping is unused, this will be changed in a later commit. Signed-off-by: Benjamin Berg <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.96c6006f40ff.I55b74bc97c4026761397a7513a559c88a10b6489@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: return a new allocation for hdr page spaceBenjamin Berg3-45/+44
Instead of returning the pointer to the structure describing the header page, return the pointer to the newly allocated area. This disentangles the user from the allocation within the page as it does not need to advance the position itself. Signed-off-by: Benjamin Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Link: https://patch.msgid.link/20240703125541.044f2cb373f1.I52a807ac6f311b89530e18deacc7452638a6f5d8@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: simplify EMLSR blockingJohannes Berg1-6/+8
If EMLSR is already blocked for the same reason that it's blocked for again, there's no need to actually do any work, so exit early from the function. Also, print the state after modifying it, so it's clearer. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.6995464f0bac.Iac9fe3546ca0a0d6bc6666c822a667ab257419a9@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: align reorder buffer entries to cachelineJohannes Berg1-1/+1
The entries[] array needs to be cacheline aligned to avoid false sharing between different queues, each queue has a set of entries in it that it writes to. While it is aligned in practice today given that each array entry before it is aligned, it's still clearer to explicitly require it to be aligned, so add the annotation for that. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.3bc7a55ac867.Id3c1df6d40e92c3de9caededcbc32d0e57e4423d@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: clean up reorder buffer dataJohannes Berg3-13/+10
We really don't need to maintain the buffer size per queue buffer, it's the same for the whole BA session. Also, we no longer use the mvm pointer inside each queue's data structure. Clean that up. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Link: https://patch.msgid.link/20240703125541.64ea1ba75379.I2a25af040061efaf82379e96a84a76c5fb65c677@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: don't send an ROC command with max_delay = 0Emmanuel Grumbach1-3/+14
The firmware can't handle that (it will crash with ASSERT 300A). This happened because we looked at vif->bss_conf which is not the right bss_conf to look at in case of an MLD connection. Fix iwl_mvm_roc_duration_and_delay to iterate on the active links to get the right value for the dtim_interval. Signed-off-by: Emmanuel Grumbach <[email protected]> Signed-off-by: Miri Korenblit <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Link: https://patch.msgid.link/20240703064027.e12f8d84c8fd.I3dd9f720c678c06ec7a5bf7ca56e21cf0b614c8c@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04wifi: iwlwifi: mvm: fix interface combinationsJohannes Berg1-2/+2
The NAN code referenced in this commit isn't actually present in the driver (any more), and the commit didn't add the extra NAN entry. Thus, the -1 is incorrect. Reported-by: Alexander Wetzel <[email protected]> Closes: https://lore.kernel.org/[email protected] Fixes: 5c38bedac16a ("wifi: iwlwifi: mvm: unify and fix interface combinations") Link: https://patch.msgid.link/20240702130001.8c871a3f0b5a.I08a6542f52f63c5bd66bf3feb09e1998ce7c60e5@changeid Signed-off-by: Johannes Berg <[email protected]>
2024-07-04thermal: gov_power_allocator: Return early in manage if trip_max is NULLNícolas F. R. A. Prado1-0/+3
Commit da781936e7c3 ("thermal: gov_power_allocator: Allow binding without trip points") allowed the governor to bind even when trip_max is NULL. This allows a NULL pointer dereference to happen in the manage callback. Add an early return to prevent it, since the governor is expected to not do anything in this case. Fixes: da781936e7c3 ("thermal: gov_power_allocator: Allow binding without trip points") Signed-off-by: Nícolas F. R. A. Prado <[email protected]> Link: https://patch.msgid.link/20240702-power-allocator-null-trip-max-v1-1-47a60dc55414@collabora.com Cc: All applicable <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2024-07-04thermal: uniphier: Use thermal_zone_for_each_trip() for walking trip pointsRafael J. Wysocki1-14/+25
It is generally inefficient to iterate over trip indices and call thermal_zone_get_trip() every time to get the struct thermal_trip corresponding to the given trip index, so modify the uniphier thermal driver to use thermal_zone_for_each_trip() for walking trips. Signed-off-by: Rafael J. Wysocki <[email protected]> Reviewed-by: Kunihiko Hayashi <[email protected]> Link: https://patch.msgid.link/2148114.bB369e8A3T@kreacher [ rjw: Add missing return statement, remove unused local variable ] Signed-off-by: Rafael J. Wysocki <[email protected]>
2024-07-04soc: fsl: cpm1: qmc: Introduce qmc_chan_count_phandles()Herve Codina1-0/+13
No function in the QMC API is available to get the number of phandles present in a phandle list. Fill this lack introducing qmc_chan_count_phandles(). Signed-off-by: Herve Codina <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Mark Brown <[email protected]>
2024-07-04soc: fsl: cpm1: qmc: Introduce functions to get a channel from a phandle listHerve Codina1-8/+11
qmc_chan_get_byphandle() and the resource managed version retrieve a channel from a simple phandle. Extend the API and introduce qmc_chan_get_byphandles_index() and the resource managed version in order to retrieve a channel from a phandle list using the provided index to identify the phandle in the list. Also update qmc_chan_get_byphandle() and the resource managed version to use qmc_chan_get_byphandles_index() and so avoid code duplication. Signed-off-by: Herve Codina <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Mark Brown <[email protected]>
2024-07-04net: dsa: microchip: lan937x: Add error handling in lan937x_setupOleksij Rempel1-10/+17
Introduce error handling for lan937x_cfg function calls in lan937x_setup. This change ensures that if any lan937x_cfg or ksz_rmw32 calls fails, the function will return the appropriate error code. Signed-off-by: Oleksij Rempel <[email protected]> Acked-by: Arun Ramadoss <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
2024-07-04devres: Correct code style for functions that return a pointer typeZijun Hu1-11/+11
Correct code style for several functions that return a pointer type. Signed-off-by: Zijun Hu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04devres: Initialize an uninitialized struct memberZijun Hu1-0/+1
Initialize an uninitialized struct member for driver API devres_open_group(). Signed-off-by: Zijun Hu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04devres: Fix memory leakage caused by driver API devm_free_percpu()Zijun Hu1-1/+5
It will cause memory leakage when use driver API devm_free_percpu() to free memory allocated by devm_alloc_percpu(), fixed by using devres_release() instead of devres_destroy() within devm_free_percpu(). Fixes: ff86aae3b411 ("devres: add devm_alloc_percpu()") Cc: [email protected] Signed-off-by: Zijun Hu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04devres: Fix devm_krealloc() wasting memoryZijun Hu1-1/+4
Driver API devm_krealloc() calls alloc_dr() with wrong argument @total_new_size, so causes more memory to be allocated than required fix this memory waste by using @new_size as the argument for alloc_dr(). Fixes: f82485722e5d ("devres: provide devm_krealloc()") Cc: [email protected] Signed-off-by: Zijun Hu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04misc: Register a PPI for the vcpu stall detection virtual deviceSebastian Ene1-2/+29
Request a PPI for each vCPU during probe which will be used by the host to communicate a stall detected event on the vCPU. When the host raises this interrupt from the virtual machine monitor, the guest is expected to handle the interrupt and panic. Signed-off-by: Sebastian Ene <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04power: supply: sysfs: use power_supply_property_is_writeable()Thomas Weißschuh1-2/+1
Instead of open-coding the helper use it directly. Signed-off-by: Thomas Weißschuh <[email protected]> Link: https://lore.kernel.org/r/20240608-power-supply-extensions-v2-1-2dcd35b012ad@weissschuh.net Signed-off-by: Sebastian Reichel <[email protected]>
2024-07-04serial: qcom-geni: do not kill the machine on fifo underrunJohan Hovold1-1/+1
The Qualcomm GENI serial driver did not handle buffer flushing and used to print discarded characters when the circular buffer was cleared. Since commit 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") this instead resulted in a hard lockup due to qcom_geni_serial_send_chunk_fifo() spinning indefinitely in the interrupt handler. The underlying bugs have now been fixed, but make sure to output NUL characters instead of killing the machine if a similar driver bug is ever reintroduced. Signed-off-by: Johan Hovold <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04serial: qcom-geni: fix hard lockup on buffer flushJohan Hovold1-3/+13
The Qualcomm GENI serial driver does not handle buffer flushing and used to continue printing discarded characters when the circular buffer was cleared. Since commit 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") this instead results in a hard lockup due to qcom_geni_serial_send_chunk_fifo() spinning indefinitely in the interrupt handler. This is easily triggered by interrupting a command such as dmesg in a serial console but can also happen when stopping a serial getty on reboot. Implement the flush_buffer() callback and use it to cancel any active TX command when the write buffer has been emptied. Reported-by: Douglas Anderson <[email protected]> Link: https://lore.kernel.org/lkml/[email protected]/ Fixes: 1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo") Fixes: a1fee899e5be ("tty: serial: qcom_geni_serial: Fix softlock") Cc: [email protected] # 5.0 Signed-off-by: Johan Hovold <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04serial: qcom-geni: fix soft lockup on sw flow control and suspendJohan Hovold1-9/+24
The stop_tx() callback is used to implement software flow control and must not discard data as the Qualcomm GENI driver is currently doing when there is an active TX command. Cancelling an active command can also leave data in the hardware FIFO, which prevents the watermark interrupt from being enabled when TX is later restarted. This results in a soft lockup and is easily triggered by stopping TX using software flow control in a serial console but this can also happen after suspend. Fix this by only stopping any active command, and effectively clearing the hardware fifo, when shutting down the port. When TX is later restarted, a transfer command may need to be issued to discard any stale data that could prevent the watermark interrupt from firing. Fixes: c4f528795d1a ("tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP") Cc: [email protected] # 4.17 Signed-off-by: Johan Hovold <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04misc: keba: Add basic KEBA CP500 system FPGA supportGerhard Engleder5-0/+475
The KEBA CP500 system FPGA is a PCIe device, which consists of multiple IP cores. Every IP core has its own auxiliary driver. The cp500 driver registers an auxiliary device for each device and the corresponding drivers are loaded by the Linux driver infrastructure. Currently 3 variants of this device exists. Every variant has its own PCI device ID, which is used to determine the list of available IP cores. In this first version only the auxiliary device for the I2C controller is registered. Besides the auxiliary device registration some other basic functions of the FPGA are implemented; e.g, FPGA version sysfs file, keep FPGA configuration on reset sysfs file, error message for errors on the internal AXI bus of the FPGA. Signed-off-by: Gerhard Engleder <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04mei: vsc: Fix spelling errorWentong Wu1-1/+1
Fix a spelling error in a comment. Signed-off-by: Wentong Wu <[email protected]> Tested-by: Jason Chen <[email protected]> Acked-by: Sakari Ailus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04mei: vsc: Enhance SPI transfer of IVSC ROMWentong Wu1-1/+1
Before downloading firmware, a command response is required to identify the silicon. However, when downloading IVSC firmware, reading data from the SPI transfers with the IVSC ROM is not necessary. Therefore, the rx buffer of SPI transfer command is determined based on the specific request of the caller. Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Signed-off-by: Wentong Wu <[email protected]> Tested-by: Jason Chen <[email protected]> Acked-by: Tomas Winker <[email protected]> Acked-by: Sakari Ailus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04mei: vsc: Utilize the appropriate byte order swap functionWentong Wu1-1/+1
Switch from cpu_to_be32_array() to be32_to_cpu_array() for the received ROM data. Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: [email protected] # for 6.8+ Signed-off-by: Wentong Wu <[email protected]> Tested-by: Jason Chen <[email protected]> Acked-by: Sakari Ailus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04mei: vsc: Prevent timeout error with added delay post-firmware downloadWentong Wu1-2/+2
After completing the firmware download, the firmware requires some time to become functional. This change introduces additional sleep time before the first read operation to prevent a confusing timeout error in vsc_tp_xfer(). Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: [email protected] # for 6.8+ Signed-off-by: Wentong Wu <[email protected]> Tested-by: Jason Chen <[email protected]> Acked-by: Sakari Ailus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04mei: vsc: Enhance IVSC chipset stability during warm rebootWentong Wu1-0/+14
During system shutdown, incorporate reset logic to ensure the IVSC chipset remains in a valid state. This adjustment guarantees that the IVSC chipset operates in a known state following a warm reboot. Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device") Cc: [email protected] # for 6.8+ Signed-off-by: Wentong Wu <[email protected]> Tested-by: Jason Chen <[email protected]> Acked-by: Sakari Ailus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04eeprom: ee1004: Instantiate jc42 devices for DIMMS implementing Rev.1 SPDGuenter Roeck1-3/+20
DDR4 DIMMS implementing SPD Annex L, Revision 1 do not implement SPD byte 14 (Module Temperature Sensor); this byte was only added in revision 2 of the standard. This only applies to DDR4, not DDR4E or LPDDR4, since those DDR types were only introduced in revision 3 of the standard. Use this information to instantiate the jc42 device if the module is a DDR4 following SPD revision 1.0 and a device is detected at the expected thermal sensor address, even if the Module Temperature Sensor byte suggests that the thermal sensor is not supported. Cc: Heiner Kallweit <[email protected]> Cc: Thomas Weißschuh <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04eeprom: ee1004: Call i2c_new_scanned_device to instantiate thermal sensorGuenter Roeck1-3/+3
Instantiating a device by calling i2c_new_client_device() assumes that the device is not already instantiated. If that is not the case, it will return an error and generate a misleading kernel log message. i2c i2c-0: Failed to register i2c client jc42 at 0x18 (-16) This can be reproduced by unloading the ee1004 driver and loading it again. Avoid this by calling i2c_new_scanned_device() instead, which returns silently if a device is already instantiated or does not exist. Fixes: 393bd1000f81 ("eeprom: ee1004: add support for temperature sensor") Cc: Heiner Kallweit <[email protected]> Cc: Thomas Weißschuh <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-07-04eeprom: ee1004: Add nvmem supportArmin Wolf2-20/+40
Currently the driver does not register a nvmem provider, which means that userspace programs cannot access the ee1004 EEPROM through the standard nvmem sysfs API. Fix this by replacing the custom sysfs attribute with a standard nvmem interface, which also takes care of backwards compatibility. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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