- 10 Jul, 2024 1 commit
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Vamsi Attunuru authored
Adds a misc driver for Marvell CN10K DPI(DMA Engine) device's physical function which initializes DPI DMA hardware's global configuration and enables hardware mailbox channels between physical function (PF) and it's virtual functions (VF). VF device drivers (User space drivers) use this hw mailbox to communicate any required device configuration on it's respective VF device. Accordingly, this DPI PF driver provisions the VF device resources. At the hardware level, the DPI physical function (PF) acts as a management interface to setup the VF device resources, VF devices are only provisioned to handle or control the actual DMA Engine's data transfer capabilities. Signed-off-by:
Vamsi Attunuru <vattunuru@marvell.com> Reviewed-by:
Srujana Challa <schalla@marvell.com> Link: https://lore.kernel.org/r/20240706153009.3775333-1-vattunuru@marvell.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 09 Jul, 2024 2 commits
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Gerhard Engleder authored
The cp500 driver creates auxiliary devices. Kernel configs without CONFIG_AUXILIARY_BUS lead to warnings like this: cp500.c: undefined reference to `auxiliary_device_init' cp500.c: undefined reference to `__auxiliary_device_add' Add missing dependency to AUXILIARY_BUS to KEBA_CP500 Kconfig. Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202407081327.2DR4Ltu9-lkp@intel.com/ Fixes: a1944676 ("misc: keba: Add basic KEBA CP500 system FPGA support") Signed-off-by:
Gerhard Engleder <eg@keba.com> Link: https://lore.kernel.org/r/20240708180049.12713-1-gerhard@engleder-embedded.comSigned-off-by:
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Greg Kroah-Hartman authored
Merge tag 'icc-6.11-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next Georgi writes: interconnect changes for 6.11 This pull request contains the interconnect changes for the 6.11-rc1 merge window. It contains just driver changes with the following highlights: Driver changes: - New driver for MediaTek MT8183/8195 platforms - New driver for MSM8953 platforms - New QoS support for RPMh-based platforms with SC7280 being the first one to benefit from it. - Fix incorrect master-id value in qcm2290 driver - Add missing MODULE_DESCRIPTION in a few drivers Signed-off-by:
Georgi Djakov <djakov@kernel.org> * tag 'icc-6.11-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc: interconnect: qcom: Fix DT backwards compatibility for QoS interconnect: qcom: Add MSM8953 driver dt-bindings: interconnect: qcom: Add Qualcomm MSM8953 NoC interconnect: qcom: qcm2290: Fix mas_snoc_bimc RPM master ID interconnect: qcom: sc7280: enable QoS configuration interconnect: qcom: icc-rpmh: Add QoS configuration support dt-bindings: interconnect: add clock property to enable QOS on SC7280 interconnect: mediatek: remove unneeded semicolon interconnect: qcom: add missing MODULE_DESCRIPTION() macros interconnect: imx: add missing MODULE_DESCRIPTION() macros interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver dt-bindings: interconnect: Add MediaTek EMI Interconnect bindings
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- 06 Jul, 2024 1 commit
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Greg Kroah-Hartman authored
Merge tag 'mhi-for-v6.11' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next Manivannan writes: MHI Host ======== - Used unique 'mhi_pci_dev_info' struct for product families instead of reusing a shared struct. This allows displaying the actual product name for the MHI devices during driver probe. - Added support for Foxconn SDX72 based modems, T99W515 and DW5934E. - Added a 'name' field to 'struct mhi_controller' for allowing the MHI client drivers to uniquely identify each MHI device based on its product/device name. This is useful in applying any device specific quirks in the client drivers. WWAN MHI Client driver ====================== - Due to the build dependency with the MHI patch exposing 'name' field to client drivers, the WWAN MHI client driver patch that is making use of the 'name' field to apply custom data mux id for Foxconn modems is also included. Collected Ack from Networking maintainer for this patch. MHI EP ====== - Fixed the MHI EP stack to not allocate memory for MHI objects from DMA zone. This was done accidentally while adding the slab cache support and causes the MHI EP stack to run out of memory while doing high bandwidth transfers. * tag 'mhi-for-v6.11' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mani/mhi: net: wwan: mhi: make default data link id configurable bus: mhi: host: Allow controller drivers to specify name for the MHI controller bus: mhi: host: Add support for Foxconn SDX72 modems bus: mhi: host: pci_generic: Use unique 'mhi_pci_dev_info' for product families bus: mhi: ep: Do not allocate memory for MHI objects from DMA zone
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- 05 Jul, 2024 22 commits
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Amit Vadhavana authored
The placement of the `segdist_codes` array documentation was corrected to conform with kernel documentation guidelines. The `@segdist_codes` was placed incorrectly within the struct `segdist_code` documentation block, which led to a potential misinterpretation of the code structure. The `segdist_codes` array documentation was moved outside the struct block, and a separate comment block was provided for it. This change ensures that clarity and proper alignment with kernel documentation standards are maintained. A kernel-doc warning was addressed: ./drivers/slimbus/stream.c:49: warning: Excess struct member 'segdist_codes' description in 'segdist_code' Signed-off-by:Amit Vadhavana <av2082000@gmail.com> Reviewed-by:
Ricardo B. Marliere <ricardo@marliere.net> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20240705080234.424587-2-srinivas.kandagatla@linaro.orgSigned-off-by:
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Dmitry Baryshkov authored
FastRPC is a way to offload method invocation to the DSPs on Qualcomm platforms. As the driver uses dma-bufs, add dri-devel mailing list to the MAINTAINERS's entry, so that DRM maintainers are notified about the uAPI changes. This follows the usual practice established by the "DMA BUFFER SHARING FRAMEWORK" entry in the file. Suggested-by:
Bjorn Andersson <andersson@kernel.org> Signed-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by:
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Dylan Van Assche authored
Use fastrpc_remote_heap_alloc to allocate from the FastRPC device instead of the Compute Bank when the session ID is 0. This ensures that the allocation is inside the coherent DMA pool which is already accessible to the DSP. This is necessary to support FastRPC devices which do not have dedicated Compute Banks such as the SLPI on the SDM845. The latter uses an allocated CMA region instead of FastRPC Compute Banks. Signed-off-by:
Dylan Van Assche <me@dylanvanassche.be> Reviewed-by:
Caleb Connolly <caleb.connolly@linaro.org> Reviewed-by:
Ekansh Gupta <quic_ekangupt@quicinc.com> Reviewed-by:
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Dylan Van Assche authored
To support FastRPC Context Banks which aren't mapped via the SMMU, make the whole reserved memory region available to the DSP to allow access to coherent buffers. This is performed by assigning the memory to the DSP via a hypervisor call to set the correct permissions for the Virtual Machines on the DSP. This is only necessary when a memory region is provided for SLPI DSPs so guard this with a domain ID check. Signed-off-by:
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Jeff Johnson authored
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/misc/fastrpc.o Add the missing invocation of the MODULE_DESCRIPTION() macro. Signed-off-by:
Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by:
Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by:
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Ekansh Gupta authored
Few dev_err calls are missing newlines. This can result in unrelated lines getting appended which might make logs difficult to understand. Add trailing newlines to avoid this. Signed-off-by:
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Thorsten Blum authored
Switching to memdup_user() overwrites the allocated memory only once, whereas kzalloc() followed by copy_from_user() initializes the allocated memory to zero and then immediately overwrites it. Fixes the following Coccinelle/coccicheck warning reported by memdup_user.cocci: WARNING opportunity for memdup_user Signed-off-by:
Thorsten Blum <thorsten.blum@toblux.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Marek Vasut authored
Implement "force_ro" sysfs attribute to allow users to set read-write devices as read-only and back to read-write from userspace. The choice of the name is based on MMC core 'force_ro' attribute. This solves a situation where an AT24 I2C EEPROM with GPIO based nWP signal may have to be occasionally updated. Such I2C EEPROM device is usually set as read-only during most of the regular system operation, but in case it has to be updated in a controlled manner, it could be unlocked using this new "force_ro" sysfs attribute and then re-locked again. The "read-only" DT property and config->read_only configuration is respected and is used to set default state of the device, read-only or read-write, for devices which do implement .reg_write function. For devices which do not implement .reg_write function, the device is unconditionally read-only and the "force_ro" attribute is not visible. Signed-off-by:
Marek Vasut <marex@denx.de> Signed-off-by:
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Marek Vasut authored
Use sysfs_emit() instead of sprintf() to follow best practice per Documentation/filesystems/sysfs.rst " show() should only use sysfs_emit()... " Signed-off-by:
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Marek Vasut authored
Document a type attribute used by userspace to discern different types of NVMEM devices. The implementation is already present, the ABI document is missing, add it. Reviewed-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by:
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Marek Vasut authored
Replace two spaces with tab in the sysfs attribute documentation. No functional change. Signed-off-by:
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Thomas Weißschuh authored
The same checks have already been done in sysfs_kf_bin_write() and sysfs_kf_bin_read() just before the callbacks are invoked. Signed-off-by:
Thomas Weißschuh <linux@weissschuh.net> Signed-off-by:
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Thomas Weißschuh authored
nvmem_cells_groups is a global variable that is also mutated. This is complicated and error-prone. Instead use a normal stack variable. Signed-off-by:
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Thomas Weißschuh authored
The sysfs core provides a function to easily register a single group. Use it and remove the now unnecessary nvmem_cells_groups array. Signed-off-by:
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Rafał Miłecki authored
Add compatible for MT7988 SoC. Signed-off-by:
Rafał Miłecki <rafal@milecki.pl> Acked-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Neil Armstrong authored
On newer SoCs, the eFuse hardware can require a power-domain to operate, add it as optional. Signed-off-by:
Neil Armstrong <neil.armstrong@linaro.org> Acked-by:
Rob Herring (Arm) <robh@kernel.org> Signed-off-by:
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Heiko Stuebner authored
This device currently reports an "Unknown" type in sysfs. Since it is an eFuse hardware device, set its type to OTP. Signed-off-by:
Heiko Stuebner <heiko.stuebner@cherry.de> Signed-off-by:
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Heiko Stuebner authored
The Rockchip OTP is obviously an OTP memory, so document this fact. Signed-off-by:
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Heiko Stuebner authored
The Rockchip OTP describes its layout via devicetree subnodes, so set the appropriate property. Fixes: 2cc3b37f ("nvmem: add explicit config option to read old syntax fixed OF cells") Signed-off-by:
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MarileneGarcia authored
Use __free for device_node values, and thus drop calls to of_node_put. The goal is to reduce memory management issues by using this scope-based of_node_put() cleanup to simplify function exit handling. When using __free a resource is allocated within a block, it is automatically freed at the end of the block. Suggested-by:
Julia Lawall <julia.lawall@inria.fr> Signed-off-by:
MarileneGarcia <marilene.agarcia@gmail.com> Signed-off-by:
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Rafał Miłecki authored
Add compatible for MT7981 SoC. Signed-off-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by:
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Jeff Johnson authored
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/nvmem/nvmem-apple-efuses.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/nvmem/nvmem_brcm_nvram.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/nvmem/nvmem_u-boot-env.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by:
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- 04 Jul, 2024 12 commits
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Georgi Djakov authored
This series adds QoS support for QNOC type device which can be found on SC7280 platform. It adds support for programming priority, priority forward disable and urgency forwarding. This helps in priortizing the traffic originating from different interconnect masters at NOC (Network On Chip). * icc-rpmh-qos dt-bindings: interconnect: add clock property to enable QOS on SC7280 interconnect: qcom: icc-rpmh: Add QoS configuration support interconnect: qcom: sc7280: enable QoS configuration interconnect: qcom: Fix DT backwards compatibility for QoS Link: https://lore.kernel.org/r/20240607173927.26321-1-quic_okukatla@quicinc.comSigned-off-by:
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Odelu Kukatla authored
Add qos_clks_required flag to skip QoS configuration if clocks property is not populated in devicetree for providers which require clocks to be enabled for accessing registers. This is to keep the QoS configuration backwards compatible with devices that have older DTB. Reported-by:
Odelu Kukatla <quic_okukatla@quicinc.com> Tested-by:
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Georgi Djakov authored
Add interconnect driver for MSM8953-based devices. * icc-msm8953 dt-bindings: interconnect: qcom: Add Qualcomm MSM8953 NoC interconnect: qcom: Add MSM8953 driver Link: https://lore.kernel.org/r/20240628-msm8953-interconnect-v3-0-a70d582182dc@mainlining.orgSigned-off-by:
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Georgi Djakov authored
* icc-fixes interconnect: qcom: qcm2290: Fix mas_snoc_bimc RPM master ID Signed-off-by: -
Sebastian Ene authored
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 <sebastianene@google.com> Link: https://lore.kernel.org/r/20240703153732.3214238-3-sebastianene@google.comSigned-off-by:
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Sebastian Ene authored
The vcpu stall detector allows the host to monitor the availability of a guest VM. Introduce a PPI interrupt which can be injected from the host into the virtual gic to let the guest reboot itself. Acked-by:
Conor Dooley <conor.dooley@microchip.com> Signed-off-by:
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Gerhard Engleder authored
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:
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Guenter Roeck authored
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 <hkallweit1@gmail.com> Cc: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20240629173716.20389-2-linux@roeck-us.netSigned-off-by:
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Guenter Roeck authored
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: 393bd100 ("eeprom: ee1004: add support for temperature sensor") Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by:
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Armin Wolf authored
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 <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240625063459.429953-2-W_Armin@gmx.deSigned-off-by:
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Armin Wolf authored
Use devm_add_action_or_reset() to clean up the bus data at driver removal or when an error occurs during probe. This will allow us to use other devres-based APIs later. Tested on a Dell Inspiron 3505. Signed-off-by:
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Greg Kroah-Hartman authored
Merge tag 'iio-for-6.11b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: IIO: 2nd set of new device support, features and cleanup for 6.11 The big one here is we finally have Paul Cercueil's (and others) DMA buffer support for IIO devices enabling high speed zero copy transfer of data to and from sensors supported by IIO (and for example USB). This should aid with upstream support of a range of higher performance ADCs and DACs. Two merges from other trees - spi/spi_devm_optimize used for simplification in ad7944. - dmaengine/topic_dma_vec to enable the DMABUF series. One feature with impact outside IIO. - Richer set of dev_err_probe() like helpers to cover ERR_PTR() cases. New device support ================== adi,ad7173 - Add support for AD4111, AD4112, AD4114, AD4115 and ADC4116 pseudo differential ADCs. Major driver rework was needed to enabled these. adi,ad7944 - Use devm_spi_optimize_message() to avoid a local devm cleanup callback. This is the example case from the patch set, others will follow. mediatek,mt6359-auxadc - New driver for this ADC IP found in MT6357, MT6358 and MT6359 PMICs. st,accel - Add support for the LIS2DS12 accelerometer ti,ads1119 - New driver for this 16 bit 2-differential or 4-single ended channel ADC. Features ======== dt-bindings - Introduce new common-mode-channel property to help handle pseudo differential ADCs where we have something that looks like one side of differential input, but which is only suited for use with a slow moving reference. adi,adf4350 - Support use as a clock provider. iio-hmwon - Support reading of labels from IIO devices by their consumers and use this in the hwmon bridge. Cleanup and minor fixes ======================= Treewide - Use regmap_clear_bits() / regmap_set_bits() to simplify open coded equivalents. - Use devm_regulator_get_enable_read_voltage() to replace equivalent opencoded boilerplate. In some cases enabled complete conversion to devm handling and removal of explicit remove() callbacks. - Introduce dev_err_ptr_probe() and other variants and make use of of them in a couple of examples driver cleanups. Will find use in many more drivers soon. adi,ad7192 - Introduce local struct device *dev and use dev_err_probe() to give more readable code. adi,adi-axi-adc/dac - Improved consistency of messages using dev_err_probe() adi,adis - Split the trigger handling into cases that needed paging and those that don't resulting in more readable code. - Use cleanup.h to simplify error paths via scoped cleanup. - Add adis specific lock helpers and make use of them in a number of drivers. adi,ad7192 - Update maintainer (Alisa-Dariana Roman) adi,ad7606 - dt-binding cleanup. avago,apds9306 - Add a maintainer entry (Subhajit Ghosh) linear,ltc2309 - Fix a wrong endian type. st,stm32-dfsdm - Fix a missing port property in the dt-binding. st,sensors - Relax whoami match failure to a warning print rather than probe failure. This enables fallback compatibles to existing parts from those that don't necessarily even exit yet. * tag 'iio-for-6.11b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (112 commits) iio: adc: ad7173: Fix uninitialized symbol is_current_chan iio: adc: Add support for MediaTek MT6357/8/9 Auxiliary ADC math.h: Add unsigned 8 bits fractional numbers type dt-bindings: iio: adc: Add MediaTek MT6359 PMIC AUXADC iio: common: scmi_iio: convert to dev_err_probe() iio: backend: make use of dev_err_cast_probe() iio: temperature: ltc2983: convert to dev_err_probe() dev_printk: add new dev_err_probe() helpers iio: xilinx-ams: Add labels iio: adc: ad7944: use devm_spi_optimize_message() Documentation: iio: Document high-speed DMABUF based API iio: buffer-dmaengine: Support new DMABUF based userspace API iio: buffer-dma: Enable support for DMABUFs iio: core: Add new DMABUF interface infrastructure MAINTAINERS: Update AD7192 driver maintainer iio: adc: ad7192: use devm_regulator_get_enable_read_voltage iio: st_sensors: relax WhoAmI check in st_sensors_verify_id() MAINTAINERS: Add AVAGO APDS9306 dt-bindings: iio: adc: adi,ad7606: comment and sort the compatible names dt-bindings: iio: adc: adi,ad7606: add missing datasheet link ...
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- 03 Jul, 2024 2 commits
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Dr. David Alan Gilbert authored
'devmodel' hasn't actually been used since: 'commit 3275158f ("parport: remove use of devmodel")' and everyone now has it set to true and has been fixed up; remove the flag. (There are still comments all over about it) Signed-off-by:
Dr. David Alan Gilbert <linux@treblig.org> Acked-by:
Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20240502154823.67235-4-linux@treblig.orgSigned-off-by:
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Dr. David Alan Gilbert authored
The attach function pointers haven't actually been called since: 'commit 3275158f ("parport: remove use of devmodel")' topped adding entries to the drivers list. If you're converting a driver, look at the 'match_port' function pointer instead. (There are lots of comment references to 'attach' all over, but they probably need some deeper understanding to check the semantics to see if they can be replaced by match_port). Signed-off-by:
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