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2025-07-25can: kvaser_pciefd: Add support for ethtool set_phys_id()Jimmy Assarsson
Add support for ethtool set_phys_id(), to physically locate devices by flashing a LED on the device. Reviewed-by: Axel Forsman <axfo@kvaser.com> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123230.8-3-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-07-25can: kvaser_pciefd: Add support to control CAN LEDs on deviceJimmy Assarsson
Add support to turn on/off CAN LEDs on device. Turn off all CAN LEDs in probe, since they are default on after a reset or power on. Reviewed-by: Axel Forsman <axfo@kvaser.com> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123230.8-2-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-07-25accel/rocket: Add registers headerTomeu Vizoso
A XML file was generated with the data from the TRM, and then this header was generated from it. The canonical location for the XML file is the Mesa3D repository. v3: - Make use of GPL-2.0-only for the copyright notice (Jeff Hugo) v8: - Remove full MIT license blob, to match other files with the same licensing arrangement in the kernel Reviewed-by: Robert Foss <rfoss@kernel.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com> Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net> Signed-off-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250721-6-10-rocket-v9-1-77ebd484941e@tomeuvizoso.net
2025-07-25drm/xe/xelp: Add Wa_18022495364Tvrtko Ursulin
Add Wa_18022495364 as a context workaround batch buffer workaround. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20250711160153.49833-9-tvrtko.ursulin@igalia.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25drm/xe/xelp: Implement Wa_16010904313Tvrtko Ursulin
Add XeLP workaround 16010904313. The description calls for it to be emitted as the indirect context buffer workaround for render and compute, and from the workaround batch buffer for the other engines. Therefore we plug into the previously added respective top level emission functions. The actual command streamer programming sequence differs from what is described in the PRM, in that it assumes the listed LRCA offset was supposed to actually refer to the location of the CTX_TIMESTAMP register instead of LRCA + 0x180c (which is in GPR space). Latter appears to make more sense under the assumption that multiple writes are helping with restoring the CTX_TIMESTAMP register content from the saved context state. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20250711160153.49833-8-tvrtko.ursulin@igalia.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25drm/i915/display: Remove unused declarations of intel_io_*Gustavo Sousa
Declarations for both intel_io_mmio_fw_write and intel_io_reg_write were added with commit 01389846f7d6 ("drm/i915: Plumb 'dsb' all way to the plane hooks"), but they never got used. Let's remove them. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://lore.kernel.org/r/20250717-drop-unused-intel_io-declarations-v1-1-bdea2c749571@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25drm/i915/dp: Fix disabling training pattern at end of UHBR link trainingImre Deak
The Fixed: commit below overlooked the fact that intel_dp_link_train_all_phys() is only used for non-UHBR link rates, but intel_dp_stop_link_train() is used for both non-UHBR and UHBR link rates. Hence, after removing the disabling of the training pattern from intel_dp_stop_link_train(), the commit missed adding this back to the end of UHBR link training in intel_dp_128b132b_link_train(). This left the sink in link training mode at the end of an UHBR rate link training. Fix things by disabling the training pattern at the end of UHBR link training as well. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Fixes: 11fab5a2a1ad ("drm/i915/dp: Clear DPCD training pattern before transmitting the idle pattern") Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250724182900.160891-1-imre.deak@intel.com
2025-07-25Merge patch series "libsas cleanups"Martin K. Petersen
Damien Le Moal <dlemoal@kernel.org> says: Martin, John, While debugging an issue with the pm8001 driver, I generated these cleanup patches. No functional changes overall. These patches are against the 6.17/scsi-staging branch of the scsi tree. Link: https://lore.kernel.org/r/20250725015818.171252-1-dlemoal@kernel.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25scsi: libsas: Use a bool for sas_deform_port() second argumentDamien Le Moal
Change the type of the "gone" argument of sas_deform_port() from int to bool. Simliarly, to be consistent, do the same change to the function sas_unregister_domain_devices(). No functional changes. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250725015818.171252-6-dlemoal@kernel.org Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25scsi: libsas: Move declarations of internal functions to sas_internal.hDamien Le Moal
Move the declaration of all functions used only within libsas from include/scsi/sas_ata.h to drivers/scsi/libsas/sas_internal.h. No functional changes. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250725015818.171252-5-dlemoal@kernel.org Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25scsi: libsas: Make sas_get_ata_info() staticDamien Le Moal
The function sas_get_ata_info() is used only in drivers/scsi/libsas/sas_ata.c. Remove its definition from include/scsi/sas_ata.h and make this function static. No functional changes. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250725015818.171252-4-dlemoal@kernel.org Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25scsi: libsas: Simplify sas_ata_wait_eh()Damien Le Moal
Simplify the code of sas_ata_wait_eh(), removing the local variable ap for the pointer to the device ata_port structure. The test using dev_is_sata() is also removed as all call sites of this function check if the device is a SATA one before calling this function. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250725015818.171252-3-dlemoal@kernel.org Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25scsi: sd: Make sd shutdown issue START STOP UNIT appropriatelySalomon Dushimirimana
Commit aa3998dbeb3a ("ata: libata-scsi: Disable scsi device manage_system_start_stop") enabled libata EH to manage device power mode trasitions for system suspend/resume and removed the flag from ata_scsi_dev_config. However, since the sd_shutdown() function still relies on the manage_system_start_stop flag, a spin-down command is not issued to the disk with command "echo 1 > /sys/block/sdb/device/delete" sd_shutdown() can be called for both system/runtime start stop operations, so utilize the manage_run_time_start_stop flag set in the ata_scsi_dev_config and issue a spin-down command during disk removal when the system is running. This is in addition to when the system is powering off and manage_shutdown flag is set. The manage_system_start_stop flag will still be used for drivers that still set the flag. Fixes: aa3998dbeb3a ("ata: libata-scsi: Disable scsi device manage_system_start_stop") Signed-off-by: Salomon Dushimirimana <salomondush@google.com> Link: https://lore.kernel.org/r/20250724214520.112927-1-salomondush@google.com Tested-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-25drm/xe/configfs: Use pci_name() for lookupMichal Wajdeczko
There is no need to manually build PCI device name from BDF data, since it was already prepared and assigned and can be accessed by calling pci_name() function. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://lore.kernel.org/r/20250722141059.30707-4-michal.wajdeczko@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25drm/xe/configfs: Enforce canonical device namesMichal Wajdeczko
While we expect config directory names to match PCI device name, currently we are only scanning provided names for domain, bus, device and function numbers, without checking their format. This would pass slightly broken entries like: /sys/kernel/config/xe/ ├── 0000:00:02.0000000000000 │   └── ... ├── 0000:00:02.0x │   └── ... ├── 0: 0: 2. 0 │   └── ... └── 0:0:2.0 └── ... To avoid such mistakes, check if the name provided exactly matches the canonical PCI device address format, which we recreated from the parsed BDF data. Also simplify scanf format as it can't really catch all formatting errors. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20250722141059.30707-3-michal.wajdeczko@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25drm/xe/configfs: Fix pci_dev reference leakMichal Wajdeczko
We are using pci_get_domain_bus_and_slot() function to verify if the given config directory name matches any existing PCI device, but we missed to call matching pci_dev_put() to release reference. While around, also change error code in case of no device match, to make it more specific than generic formatting error. Fixes: 16280ded45fb ("drm/xe: Add configfs to enable survivability mode") Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Link: https://lore.kernel.org/r/20250722141059.30707-2-michal.wajdeczko@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-07-25spi: intel: Allow writeable MTD partition with module paramJakub Czapiga
The MTD device is blocked from writing to the SPI-NOR chip if any region of it is write-protected, even if "writeable=1" module parameter is set. Add ability to bypass this behaviour by introducing new module parameter "ignore_protestion_status" which allows to rely on the write protection mechanism of SPI-NOR chip itself, which most modern chips (since the 1990'+) have already implemented. Any erase/write operations performed on the write-protected section will be rejected by the chip. Signed-off-by: Jakub Czapiga <czapiga@google.com> Link: https://patch.msgid.link/20250725122542.2633334-1-czapiga@google.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-07-25HID: core: Harden s32ton() against conversion to 0 bitsAlan Stern
Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should never occur, but there are buggy devices and some might have a report field with size set to zero; we shouldn't reject the report or the device just because of that. Instead, harden the s32ton() routine so that it returns a reasonable result instead of crashing when it is called with the number of bits set to 0 -- the same as what snto32() does. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: syzbot+b63d677d63bcac06cf90@syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/68753a08.050a0220.33d347.0008.GAE@google.com/ Tested-by: syzbot+b63d677d63bcac06cf90@syzkaller.appspotmail.com Fixes: dde5845a529f ("[PATCH] Generic HID layer - code split") Cc: stable@vger.kernel.org Link: https://patch.msgid.link/613a66cd-4309-4bce-a4f7-2905f9bce0c9@rowland.harvard.edu Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2025-07-25docs: Fix kernel-doc error in CAN driverLuis Felipe Hernandez
Fix kernel-doc formatting issue causing unexpected indentation error in ctucanfd driver documentation build. Convert main return values to bullet list format while preserving numbered sub-list in order to correct indentation error and visual structure in rendered html. Signed-off-by: Luis Felipe Hernandez <luis.hernandez093@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Reviewed-by: Pavel Pisa <pisa@fel.cvut.cz> Link: https://patch.msgid.link/20250722035352.21807-1-luis.hernandez093@gmail.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-07-25can: tscan1: CAN_TSCAN1 can depend on PC104Randy Dunlap
Add a dependency on PC104 to limit (restrict) this driver kconfig prompt to kernel configs that have PC104 set. Add COMPILE_TEST as a possibility for more complete build coverage. I tested this build config on x86_64 5 times without problems. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://patch.msgid.link/20250721002823.3548945-1-rdunlap@infradead.org [mkl: fix conflict, remove Fixes: tag] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-07-25can: peak_usb: fix USB FD devices potential malfunctionStephane Grosjean
The latest firmware versions of USB CAN FD interfaces export the EP numbers to be used to dialog with the device via the "type" field of a response to a vendor request structure, particularly when its value is greater than or equal to 2. Correct the driver's test of this field. Fixes: 4f232482467a ("can: peak_usb: include support for a new MCU") Signed-off-by: Stephane Grosjean <stephane.grosjean@hms-networks.com> Link: https://patch.msgid.link/20250724081550.11694-1-stephane.grosjean@free.fr Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> [mkl: rephrase commit message] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-07-25usb: musb: omap2430: clean up probe error handlingJohan Hovold
Using numbered error labels is discouraged (e.g. as it requires renumbering them when adding a new intermediate error path). Rename the error labels after what they do. While at it, drop the redundant platform allocation failure dev_err() as the error would already have been logged by the allocator. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724091910.21092-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: musb: omap2430: fix device leak at unbindJohan Hovold
Make sure to drop the reference to the control device taken by of_find_device_by_node() during probe when the driver is unbound. Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()") Cc: stable@vger.kernel.org # 3.13 Cc: Roger Quadros <rogerq@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724091910.21092-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: gadget: udc: renesas_usb3: fix device leak at unbindJohan Hovold
Make sure to drop the reference to the companion device taken during probe when the driver is unbound. Fixes: 39facfa01c9f ("usb: gadget: udc: renesas_usb3: Add register of usb role switch") Cc: stable@vger.kernel.org # 4.19 Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724091910.21092-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: dwc3: meson-g12a: fix device leaks at unbindJohan Hovold
Make sure to drop the references taken to the child devices by of_find_device_by_node() during probe on driver unbind. Fixes: c99993376f72 ("usb: dwc3: Add Amlogic G12A DWC3 glue") Cc: stable@vger.kernel.org # 5.2 Cc: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/20250724091910.21092-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: dwc3: imx8mp: fix device leak at unbindJohan Hovold
Make sure to drop the reference to the dwc3 device taken by of_find_device_by_node() on probe errors and on driver unbind. Fixes: 6dd2565989b4 ("usb: dwc3: add imx8mp dwc3 glue layer driver") Cc: stable@vger.kernel.org # 5.12 Cc: Li Jun <jun.li@nxp.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724091910.21092-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: musb: omap2430: enable compile testingJohan Hovold
Nothing seems to prevent the driver from being compile tested on non-OMAP platforms so enable it to provide wider build coverage. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724092104.21317-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: gadget: udc: renesas_usb3: drop unused module aliasJohan Hovold
Since commit f3323cd03e58 ("usb: gadget: udc: renesas_usb3: remove R-Car H3 ES1.* handling") the driver only supports OF probe so drop the unused platform module alias. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724092006.21216-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25usb: xhci: print xhci->xhc_state when queue_command failedSu Hui
When encounters some errors like these: xhci_hcd 0000:4a:00.2: xHCI dying or halted, can't queue_command xhci_hcd 0000:4a:00.2: FIXME: allocate a command ring segment usb usb5-port6: couldn't allocate usb_device It's hard to know whether xhc_state is dying or halted. So it's better to print xhc_state's value which can help locate the resaon of the bug. Signed-off-by: Su Hui <suhui@nfschina.com> Link: https://lore.kernel.org/r/20250725060117.1773770-1-suhui@nfschina.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-25drm/i915: Fix selecting CONFIG_DRM_KUNIT_TEST in debug buildsImre Deak
Selecting an option which depends on other options only works if the dependencies are guaranteed to be selected (as these dependencies will not be automatically selected). CONFIG_DRM_KUNIT_TEST depends on DRM, MMU and KUNIT the first two of which are guaranteed to be selected for i915, but the last one is not. Hence, selecting CONFIG_DRM_KUNIT_TEST in i915 debug builds may result in CONFIG_DRM_KUNIT_TEST being selected without the CONFIG_KUNIT dependency being selected. This causes at least the following compile error: drivers/gpu/drm/tests/drm_bridge_test.c: In function ‘drm_test_bridge_alloc_init’: drivers/gpu/drm/tests/drm_bridge_test.c:449:21: error: implicit declaration of function ‘kunit_device_register’; did you mean ‘root_device_register’? [-Werror=implicit-function-declaration] 449 | priv->dev = kunit_device_register(test, "drm-bridge-dev"); Fix the above by selecting CONFIG_DRM_KUNIT_TEST only if CONFIG_KUNIT is also selected. Fixes: 17133255a322 ("drm/i915: replace DRM_DEBUG_SELFTEST with DRM_KUNIT_TEST") Cc: Ruben Wauters <rubenru09@aol.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250724090237.92040-1-imre.deak@intel.com
2025-07-25gpio: virtio: Fix config space reading.Harald Mommer
Quote from the virtio specification chapter 4.2.2.2: "For the device-specific configuration space, the driver MUST use 8 bit wide accesses for 8 bit wide fields, 16 bit wide and aligned accesses for 16 bit wide fields and 32 bit wide and aligned accesses for 32 and 64 bit wide fields." Signed-off-by: Harald Mommer <harald.mommer@oss.qualcomm.com> Cc: stable@vger.kernel.org Fixes: 3a29355a22c0 ("gpio: Add virtio-gpio driver") Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20250724143718.5442-2-harald.mommer@oss.qualcomm.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-25drm/xe/hw_engine_group: Avoid call kfree() for drmm_kzalloc()Shuicheng Lin
Memory allocated with drmm_kzalloc() should not be freed using kfree(), as it is managed by the DRM subsystem. The memory will be automatically freed when the associated drm_device is released. These 3 group pointers are allocated using drmm_kzalloc() in hw_engine_group_alloc(), so they don't require manual deallocation. Fixes: 67979060740f ("drm/xe/hw_engine_group: Fix potential leak") Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://lore.kernel.org/r/20250724193854.1124510-2-shuicheng.lin@intel.com
2025-07-24scsi: ufs: ufs-mediatek: Add UFS host support for MT8195 SoCMacpaul Lin
Add "mediatek,mt8195-ufshci" to the of_device_id table to enable support for MediaTek MT8195/MT8395 UFS host controller. This matches the device node entry in the MT8195/MT8395 device tree and allows proper driver binding. Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://lore.kernel.org/r/20250722085721.2062657-1-macpaul.lin@mediatek.com Reviewed-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24Merge patch series "scsi: ufs: ufs-pci: Fix hibernate state transition for ↵Martin K. Petersen
Intel MTL-like host controllers" Adrian Hunter <adrian.hunter@intel.com> says: Hi Here is V2 of a couple of fixes for Intel MTL-like UFS host controllers, related to link Hibernation state. Following the fixes are some improvements for the enabling and disabling of UIC Completion interrupts. Link: https://lore.kernel.org/r/20250723165856.145750-1-adrian.hunter@intel.com Conflicts: drivers/ufs/core/ufshcd.c Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: ufs-pci: Remove control of UIC Completion interrupt for Intel MTLAdrian Hunter
Now that UFS core enables the UIC Completion interrupt only when needed, Intel MTL driver no longer needs to control the interrupt itself. So remove the associated code. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-9-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: core: Do not write interrupt enable register unnecessarilyAdrian Hunter
Write a new value to the interrupt enable register only if it is different from the old value, thereby saving a register write operation. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-8-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: core: Set and clear UIC Completion interrupt as neededAdrian Hunter
Currently the UIC Completion interrupt is left enabled except for when issuing link hibernate commands, in which case the interrupt is disabled and then re-enabled. Instead, set and clear the interrupt enable bit as needed. That is slightly simpler and less error prone, but also avoids side effects of accessing the interrupt enable register after entering link hibernation. Specifically, for some host controllers like Intel MTL, doing so disrupts the link state transition. Note also, the interrupt register is not read back anymore after it is updated. No other code does that, so it is assumed to be no longer necessary if it ever was. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-7-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: core: Remove duplicated code in ufshcd_send_bsg_uic_cmd()Adrian Hunter
Make ufshcd_send_bsg_uic_cmd() call ufshcd_send_uic_cmd() instead of duplicating its code. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-6-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: core: Move ufshcd_enable_intr() and ufshcd_disable_intr()Adrian Hunter
Move ufshcd_enable_intr() and ufshcd_disable_intr() so they can be called in subsequent patches without forward declarations. No functional change. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-5-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: ufs-pci: Remove UFS PCI driver's ->late_init() call backAdrian Hunter
->late_init() was introduced to allow the default values for rpm_lvl and spm_lvl to be set. Since commit bb9850704c04 ("scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers") and commit fe06b7c07f3f ("scsi: ufs: core: Set default runtime/system PM levels before ufshcd_hba_init()"), those default values can be set in the ->init() variant call back. Move the setting of default values for rpm_lvl and spm_lvl to ->init() and remove ->late_init(). Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-4-adrian.hunter@intel.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: ufs-pci: Fix default runtime and system PM levelsAdrian Hunter
Intel MTL-like host controllers support auto-hibernate. Using auto-hibernate with manual (driver initiated) hibernate produces more complex operation. For example, the host controller will have to exit auto-hibernate simply to allow the driver to enter hibernate state manually. That is not recommended. The default rpm_lvl and spm_lvl is 3, which includes manual hibernate. Change the default values to 2, which does not. Note, to be simpler to backport to stable kernels, utilize the UFS PCI driver's ->late_init() call back. Recent commits have made it possible to set up a controller-specific default in the regular ->init() call back, but not all stable kernels have those changes. Fixes: 4049f7acef3e ("scsi: ufs: ufs-pci: Add support for Intel MTL") Cc: stable@vger.kernel.org Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-3-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: ufs-pci: Fix hibernate state transition for Intel MTL-like host ↵Archana Patni
controllers UFSHCD core disables the UIC completion interrupt when issuing UIC hibernation commands, and re-enables it afterwards if it was enabled to start with, refer ufshcd_uic_pwr_ctrl(). For Intel MTL-like host controllers, accessing the register to re-enable the interrupt disrupts the state transition. Use hibern8_notify variant operation to disable the interrupt during the entire hibernation, thereby preventing the disruption. Fixes: 4049f7acef3e ("scsi: ufs: ufs-pci: Add support for Intel MTL") Cc: stable@vger.kernel.org Signed-off-by: Archana Patni <archana.patni@intel.com> Link: https://lore.kernel.org/r/20250723165856.145750-2-adrian.hunter@intel.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24clk: spacemit: ccu_pll: fix error return value in recalc_rate callbackAkhilesh Patil
Return 0 instead of -EINVAL if function ccu_pll_recalc_rate() fails to get correct rate entry. Follow .recalc_rate callback documentation as mentioned in include/linux/clk-provider.h for error return value. Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in> Fixes: 1b72c59db0add ("clk: spacemit: Add clock support for SpacemiT K1 SoC") Reviewed-by: Haylen Chu <heylenay@4d2.org> Reviewed-by: Alex Elder <elder@riscstar.com> Link: https://lore.kernel.org/r/aIBzVClNQOBrjIFG@bhairav-test.ee.iitb.ac.in Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2025-07-24Merge patch series "ufs: host: mediatek: Provide features and fixes in ↵Martin K. Petersen
MediaTek platforms" peter.wang@mediatek.com says: This series fixes some defects and provide features in MediaTek UFS drivers. Link: https://lore.kernel.org/r/20250722030841.1998783-1-peter.wang@mediatek.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Support FDE (AES) clock scalingPeter Wang
Add support for scaling the FDE (AES) clock to achieve higher performance, particularly for HS-G5: 1. Parse DTS settings for FDE min/max mux. 2. Scale up the FDE clock when required for enhanced performance. These changes ensure that the FDE clock can be dynamically adjusted based on performance needs, leveraging DTS configurations. Signed-off-by: Peter Wang <peter.wang@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-10-peter.wang@mediatek.com Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Support clock scaling with Vcore bindingPeter Wang
Add support for clock scaling with Vcore binding: 1. Parse the DTS setting for Vcore voltage. 2. Set the Vcore voltage to the DTS-specified value before scaling up. 3. Reset the Vcore voltage to the default setting after scaling down. These changes ensure that the Vcore voltage is appropriately managed during clock scaling operations to maintain system stability and performance. Signed-off-by: Peter Wang <peter.wang@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-9-peter.wang@mediatek.com Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Add clock scaling query functionPeter Wang
Introduce a clock scaling readiness query function to streamline the process of checking clock scaling parameters. This function simplifies the code by encapsulating the logic for determining if clock scaling is ready. Signed-off-by: Peter Wang <peter.wang@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-8-peter.wang@mediatek.com Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Add more UFSCHI hardware versionsAlice Chao
Introduce a function for version control to distinguish between new and old platforms. Update the handling of hardware IP versions, ensuring correct version comparisons by adjusting the version format for specific projects. Signed-off-by: Alice Chao <alice.chao@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-7-peter.wang@mediatek.com Reviewed-by: Peter Wang <peter.wang@mediatek.com> Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Set IRQ affinity policy for MCQ modePeter Wang
Set the IRQ affinity for MCQ mode to improve performance. Specifically, it migrates the IRQ from CPU0 to CPU3 to enhance IRQ handling efficiency. Setting IRQ affinity directly from the kernel allows the configuration to take effect earlier, and provides greater security and consistency, especially important for systems with strict performanceor real-time requirements. Signed-off-by: Peter Wang <peter.wang@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-6-peter.wang@mediatek.com Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-07-24scsi: ufs: host: mediatek: Handle broken RTC based on DTS settingPeter Wang
Introduce a mechanism to handle broken RTC by checking the DTS setting. The configuration is specifically required for legacy platform. Signed-off-by: Peter Wang <peter.wang@mediatek.com> Link: https://lore.kernel.org/r/20250722030841.1998783-5-peter.wang@mediatek.com Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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