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2025-06-27media: ipu6: Remove workaround for Meteor Lake ES2Hao Yao
commit d471fb06b21ae54bf76464731ae1dcb26ef1ca68 upstream. There was a hardware bug which need IPU6 driver to disable the ATS. This workaround is not needed anymore as the bug was fixed in hardware level. Additionally, Arrow Lake has the same IPU6 PCI ID and x86 stepping but does not have the bug. Removing the Meteor Lake workaround is also required for the driver to function on Arrow Lake. Signed-off-by: Hao Yao <hao.yao@intel.com> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Fixes: 25fedc021985 ("media: intel/ipu6: add Intel IPU6 PCI device driver") Cc: stable@vger.kernel.org [Sakari Ailus: Added tags and explanation of what is fixed.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-27media: intel/ipu6: Fix dma mask for non-secure modeStanislaw Gruszka
commit 0209916ebe2475079ce6d8dc4114afbc0ccad1c2 upstream. We use dma_get_mask() of auxdev device for calculate iova pfn limit. This is always 32 bit mask as we do not initialize the mask (and we can not do so, since dev->dev_mask is NULL anyways for auxdev). Since we need 31 bit mask for non-secure mode use mmu_info->aperture_end which is properly initialized to correct mask for both modes. Fixes: daabc5c64703 ("media: ipu6: not override the dma_ops of device in driver") Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-20media: intel/ipu6: set the dev_parent of video device to pdevBingbu Cao
commit 6f0ab5d3671f7cbb326c8cab6fb69cb7ab9901cc upstream. The bus_info in v4l2_capability of IPU6 isys v4l2_dev is missing. The driver didn't set the dev_parent of v4l2_dev, its parent is set to its parent auxdev which is neither platform nor PCI device, thus media_set_bus_info() will not set the bus_info of v4l2_capability, then `v4l2-ctl --all` cannot show the bus_info. This patch fixes it by setting the dev_parent of video_device and v4l2 framework can detect the device type and set the bus_info instead. Fixes: 3c1dfb5a69cf ("media: intel/ipu6: input system video nodes and buffer queues") Cc: stable@vger.kernel.org Signed-off-by: Hidenori Kobayashi <hidenorik@chromium.org> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-20media: mgb4: Fix switched CMT frequency range "magic values" setsMartin Tůma
commit 450acf0840232eaf6eb7a80da11cf492e57498e8 upstream. The reason why this passed unnoticed is that most infotainment systems use frequencies near enough the middle (50MHz) where both sets work. Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-20media: mgb4: Fix CMT registers update logicMartin Tůma
commit dd05443189f9ae175dd806594b67bf55ddb6539e upstream. The CMT "magic values" registers must be updated while the CMT reset registers are active. Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-17media: intel/ipu6: remove cpu latency qos request on errorStanislaw Gruszka
commit facb541ff0805314e0b56e508f7d3cbd07af513c upstream. Fix cpu latency qos list corruption like below. It happens when we do not remove cpu latency request on error path and free corresponding memory. [ 30.634378] l7 kernel: list_add corruption. prev->next should be next (ffffffff9645e960), but was 0000000100100001. (prev=ffff8e9e877e20a8). [ 30.634388] l7 kernel: WARNING: CPU: 2 PID: 2008 at lib/list_debug.c:32 __list_add_valid_or_report+0x83/0xa0 <snip> [ 30.634640] l7 kernel: Call Trace: [ 30.634650] l7 kernel: <TASK> [ 30.634659] l7 kernel: ? __list_add_valid_or_report+0x83/0xa0 [ 30.634669] l7 kernel: ? __warn.cold+0x93/0xf6 [ 30.634678] l7 kernel: ? __list_add_valid_or_report+0x83/0xa0 [ 30.634690] l7 kernel: ? report_bug+0xff/0x140 [ 30.634702] l7 kernel: ? handle_bug+0x58/0x90 [ 30.634712] l7 kernel: ? exc_invalid_op+0x17/0x70 [ 30.634723] l7 kernel: ? asm_exc_invalid_op+0x1a/0x20 [ 30.634733] l7 kernel: ? __list_add_valid_or_report+0x83/0xa0 [ 30.634742] l7 kernel: plist_add+0xdd/0x140 [ 30.634754] l7 kernel: pm_qos_update_target+0xa0/0x1f0 [ 30.634764] l7 kernel: cpu_latency_qos_update_request+0x61/0xc0 [ 30.634773] l7 kernel: intel_dp_aux_xfer+0x4c7/0x6e0 [i915 1f824655ed04687c2b0d23dbce759fa785f6d033] Reported-by: Genes Lists <lists@sapience.com> Closes: https://lore.kernel.org/linux-media/c0e94be466b367f1a3cfdc3cb7b1a4f47e5953ae.camel@sapience.com/ Fixes: f50c4ca0a820 ("media: intel/ipu6: add the main input system driver") Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-14media: ipu6: use the IPU6 DMA mapping APIs to do mappingBingbu Cao
commit 1d4a000289979cc7f2887c8407b1bfe2a0918354 upstream. dma_ops is removed from the IPU6 auxiliary device, ISYS driver should use the IPU6 DMA mapping APIs directly instead of depending on the device callbacks. ISYS driver switch from the videobuf2 DMA contig memory allocator to scatter/gather memory allocator. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> [Sakari Ailus: Rebased on recent videobuf2 wait changes.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-05media: intel/ipu6: do not handle interrupts when device is disabledStanislaw Gruszka
commit 1429826883bb18847092b2e04c6598ef34bae1d4 upstream. Some IPU6 devices have shared interrupts. We need to handle properly case when interrupt is triggered from other device on shared irq line and IPU6 itself disabled. In such case we get 0xffffffff from ISR_STATUS register and handle all irq's cases, for what we are not not prepared and usually hang the whole system. To avoid the issue use pm_runtime_get_if_active() to check if the device is enabled and prevent suspending it when we handle irq until the end of irq. Additionally use synchronize_irq() in suspend Fixes: ab29a2478e70 ("media: intel/ipu6: add IPU6 buttress interface driver") Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> # ThinkPad X1 Yoga Gen 8, ov2740 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-05media: ipu6: remove architecture DMA ops dependency in KconfigBingbu Cao
[ Upstream commit c8e9120c2065868d97e9e94bceee777e5db08c3e ] IPU6 driver doesn't override the dma_ops of device now, it doesn't depends on the ARCH_HAS_DMA_OPS, so remove the dependency in Kconfig. Fixes: de6c85bf918e ("dma-mapping: clearly mark DMA ops as an architecture feature") Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-05media: ipu6: not override the dma_ops of device in driverBingbu Cao
[ Upstream commit daabc5c64703432c4a8798421a3588c2c142c51b ] DMA ops are a helper for architectures and not for drivers to override the DMA implementation. Driver should not override the DMA implementation. This patch removes the dma_ops override from auxiliary device and adds driver-internal helpers that use the actual DMA mapping APIs. Fixes: 9163d83573e4 ("media: intel/ipu6: add IPU6 DMA mapping API and MMU table") Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> [Sakari Ailus: Fix the commit message a little.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-05media: ipu6: Fix DMA and physical address debugging messages for 32-bitSakari Ailus
[ Upstream commit 199c204bcc732ec18dbaec2b9d6445addbd376ea ] Fix printing DMA and physical address printing on 32-bit platforms, by using correct types. Also cast DMA_BIT_MASK() result to dma_addr_t to make Clang happy. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Stable-dep-of: daabc5c64703 ("media: ipu6: not override the dma_ops of device in driver") Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-08Merge tag 'media/v6.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: - dvb-core fixes for vb2 check and device registration - v4l2-core: fix an issue with error handling for VIDIOC_G_CTRL - vb2 core: fix an issue with vb plane copy logic - videobuf2-core: copy vb planes unconditionally - vivid: fix buffer overwrite when using > 32 buffers - vivid: fix a potential division by zero due to an issue at v4l2-tpg - some spectre vulnerability fixes - several OOM access fixes - some buffer overflow fixes * tag 'media/v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: videobuf2-core: copy vb planes unconditionally media: dvbdev: fix the logic when DVB_DYNAMIC_MINORS is not set media: vivid: fix buffer overwrite when using > 32 buffers media: pulse8-cec: fix data timestamp at pulse8_setup() media: cec: extron-da-hd-4k-plus: don't use -1 as an error code media: stb0899_algo: initialize cfr before using it media: adv7604: prevent underflow condition when reporting colorspace media: cx24116: prevent overflows on SNR calculus media: ar0521: don't overflow when checking PLL values media: s5p-jpeg: prevent buffer overflows media: av7110: fix a spectre vulnerability media: mgb4: protect driver against spectre media: dvb_frontend: don't play tricks with underflow values media: dvbdev: prevent the risk of out of memory access media: v4l2-tpg: prevent the risk of a division by zero media: v4l2-ctrls-api: fix error handling for v4l2_g_ctrl() media: dvb-core: add missing buffer index check
2024-10-18media: mgb4: protect driver against spectreMauro Carvalho Chehab
Frequency range is set from sysfs via frequency_range_store(), being vulnerable to spectre, as reported by smatch: drivers/media/pci/mgb4/mgb4_cmt.c:231 mgb4_cmt_set_vin_freq_range() warn: potential spectre issue 'cmt_vals_in' [r] drivers/media/pci/mgb4/mgb4_cmt.c:238 mgb4_cmt_set_vin_freq_range() warn: possible spectre second half. 'reg_set' Fix it. Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
2024-10-02move asm/unaligned.h to linux/unaligned.hAl Viro
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-09-23Merge tag 'media/v6.12-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - New CEC driver: Extron DA HD 4K Plus - Lots of driver fixes, cleanups and improvements * tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (179 commits) media: atomisp: Use clamp() in ia_css_eed1_8_vmem_encode() media: atomisp: Fix eed1_8 code assigning signed values to an unsigned variable media: atomisp: set lock before calling vb2_queue_init() media: atomisp: Improve binary finding debug logging media: atomisp: Drop dev_dbg() calls from hmm_[alloc|free]() media: atomisp: csi2-bridge: Add DMI quirk for t4ka3 on Xiaomi Mipad2 media: atomisp: add missing wait_prepare/finish ops media: atomisp: Remove unused declaration media: atomisp: use clamp() in compute_coring() media: atomisp: use clamp() in ia_css_eed1_8_encode() media: atomisp: Simplify ia_css_pipe_create_cas_scaler_desc_single_output() media: atomisp: Replace rarely used macro from math_support.h media: atomisp: Remove duplicated leftover, i.e. sh_css_dvs_info.h media: atomisp: bnr: fix trailing statement media: atomisp: move trailing */ to separate lines media: atomisp: move trailing statement to next line. media: atomisp: Fix trailing statement in ia_css_de.host.c media: atomisp: Fix spelling mistakes in atomisp.h media: atomisp: Fix spelling mistakes in atomisp_platform.h media: atomisp: Fix spelling mistake in csi_rx_public.h ...
2024-09-04dma-mapping: clearly mark DMA ops as an architecture featureChristoph Hellwig
DMA ops are a helper for architectures and not for drivers to override the DMA implementation. Unfortunately driver authors keep ignoring this. Make the fact more clear by renaming the symbol to ARCH_HAS_DMA_OPS and having the two drivers overriding their dma_ops depend on that. These drivers should probably be marked broken, but we can give them a bit of a grace period for that. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> # for IPU6 Acked-by: Robin Murphy <robin.murphy@arm.com>
2024-08-31media: intel/ipu6: make use of dev_err_cast_probe()Hongbo Li
Using dev_err_cast_probe() to simplify the code. No functional change. Signed-off-by: Hongbo Li <lihongbo22@huawei.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-29dma-mapping: don't return errors from dma_set_max_seg_sizeChristoph Hellwig
A NULL dev->dma_parms indicates either a bus that is not DMA capable or grave bug in the implementation of the bus code. There isn't much the driver can do in terms of error handling for either case, so just warn and continue as DMA operations will fail anyway. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
2024-08-14media: mgb4: Fixed signal frame rate limit handlingMartin Tůma
Change the default DV timings for the outputs to produce a better signal less "crippled" by the frame rate limiting. While the individual values are now different, the resulting signal still matches the same default display as before. Additionally fix the corner case when the frame rate limit is set to zero causing a "divide by zero" kernel panic. Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14media: mgb4: Add support for V4L2_CAP_TIMEPERFRAMEMartin Tůma
Recent mgb4 firmwares have support for setting a variable framerate independent of the signal framerate. Add/fix (the mgb4 driver already did promote V4L2_CAP_TIMEPERFRAME, but it didn't work) support for V4L2_CAP_TIMEPERFRAME to the driver to enable this feature. Additionally add support for the DV timings API (VIDIOC_G_DV_TIMINGS, VIDIOC_ENUM_DV_TIMINGS, ...) for the outputs that was missing. The timings info is required/used for implementing the V4L2_CAP_TIMEPERFRAME functionality. Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14media: mgb4: Add support for YUV image formatsMartin Tůma
Recent mgb4 firmwares support YUV in addition to the RGB image format. Enable YUV in the driver when the FW supports it. Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-09media: solo6x10: use 'time_left' variable with wait_for_completion_timeout()Wolfram Sang
There is a confusing pattern in the kernel to use a variable named 'timeout' to store the result of wait_for_completion_timeout() causing patterns like: timeout = wait_for_completion_timeout(...) if (!timeout) return -ETIMEDOUT; with all kinds of permutations. Use 'time_left' as a variable to make the code self explaining. Fix to the proper variable type 'unsigned long' while here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Ismael Luceno <ismael@iodev.co.uk> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-07-30media: intel/ipu6: select AUXILIARY_BUS in KconfigBingbu Cao
Intel IPU6 PCI driver need register its devices on auxiliary bus, so it needs to select the AUXILIARY_BUS in Kconfig. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202407161833.7BEFXejx-lkp@intel.com/ Fixes: c70281cc83d6 ("media: intel/ipu6: add Kconfig and Makefile") Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Cc: stable@vger.kernel.org # for v6.10 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-07-30media: ipu-bridge: fix ipu6 Kconfig dependenciesArnd Bergmann
Commit 4670c8c3fb04 ("media: ipu-bridge: Fix Kconfig dependencies") changed how IPU_BRIDGE dependencies are handled for all drivers, but the IPU6 variant was added the old way, which causes build time warnings when I2C is turned off: WARNING: unmet direct dependencies detected for IPU_BRIDGE Depends on [n]: MEDIA_SUPPORT [=m] && PCI [=y] && MEDIA_PCI_SUPPORT [=y] && (ACPI [=y] || COMPILE_TEST [=y]) && I2C [=n] Selected by [m]: - VIDEO_INTEL_IPU6 [=m] && MEDIA_SUPPORT [=m] && PCI [=y] && MEDIA_PCI_SUPPORT [=y] && (ACPI [=y] || COMPILE_TEST [=y]) && VIDEO_DEV [=m] && X86 [=y] && X86_64 [=y] && HAS_DMA [=y] To make it consistent with the other IPU drivers as well as avoid this warning, change the 'select' into 'depends on'. Fixes: c70281cc83d6 ("media: intel/ipu6: add Kconfig and Makefile") Signed-off-by: Arnd Bergmann <arnd@arndb.de> [Sakari Ailus: Alternatively depend on !IPU_BRIDGE.] Cc: stable@vger.kernel.org # for v6.10 Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-07-25Merge tag 'driver-core-6.11-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big set of driver core changes for 6.11-rc1. Lots of stuff in here, with not a huge diffstat, but apis are evolving which required lots of files to be touched. Highlights of the changes in here are: - platform remove callback api final fixups (Uwe took many releases to get here, finally!) - Rust bindings for basic firmware apis and initial driver-core interactions. It's not all that useful for a "write a whole driver in rust" type of thing, but the firmware bindings do help out the phy rust drivers, and the driver core bindings give a solid base on which others can start their work. There is still a long way to go here before we have a multitude of rust drivers being added, but it's a great first step. - driver core const api changes. This reached across all bus types, and there are some fix-ups for some not-common bus types that linux-next and 0-day testing shook out. This work is being done to help make the rust bindings more safe, as well as the C code, moving toward the end-goal of allowing us to put driver structures into read-only memory. We aren't there yet, but are getting closer. - minor devres cleanups and fixes found by code inspection - arch_topology minor changes - other minor driver core cleanups All of these have been in linux-next for a very long time with no reported problems" * tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits) ARM: sa1100: make match function take a const pointer sysfs/cpu: Make crash_hotplug attribute world-readable dio: Have dio_bus_match() callback take a const * zorro: make match function take a const pointer driver core: module: make module_[add|remove]_driver take a const * driver core: make driver_find_device() take a const * driver core: make driver_[create|remove]_file take a const * firmware_loader: fix soundness issue in `request_internal` firmware_loader: annotate doctests as `no_run` devres: Correct code style for functions that return a pointer type devres: Initialize an uninitialized struct member devres: Fix memory leakage caused by driver API devm_free_percpu() devres: Fix devm_krealloc() wasting memory driver core: platform: Switch to use kmemdup_array() driver core: have match() callback in struct bus_type take a const * MAINTAINERS: add Rust device abstractions to DRIVER CORE device: rust: improve safety comments MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER firmware: rust: improve safety comments ...
2024-07-17Merge tag 'media/v6.11-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - New sensor drivers: gc05a2, gc08a3 and imx283 - New serializer/deserializer drivers: max96714 and max96717 - New JPEG encoder driver: e5010 - Support for Raspberry Pi PiSP Backend (BE) ISP driver - Old documentation for av7110 driver removed, as a new version was added as Documentation/userspace-api/media/dvb/legacy*.rst - atompisp: Linux firmwares are now available, so drop firmware-related task from TODO and update firmware logic - The imx258 driver has gained several improvements - wave5 driver has gained support for HEVC decoding - em28xx gained support for MyGica UTV3 - av7110 budget-patch driver removed - Lots of other cleanups, improvements and fixes * tag 'media/v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (301 commits) media: raspberrypi: Switch to remove_new media: uapi: pisp_be_config: Add extra config fields media: uapi: pisp_be_config: Re-sort pisp_be_tiles_config media: uapi: pisp_common: Capitalize all macros media: uapi: pisp_common: Add 32 bpp format test media: uapi: pisp_be_config: Drop BIT() from uAPI media: stm32: dcmipp: correct error handling in dcmipp_create_subdevs media: atomisp: Fix spelling mistakes in sh_css_sp.c media: atomisp: Fix spelling mistake in ia_css_debug.c media: atomisp: Fix spelling mistake in hmm_bo.c media: atomisp: Fix spelling mistake in ia_css_eed1_8.host.c media: atomisp: Fix spelling mistake in sh_css_internal.h media: atomisp: Fix spelling mistake "pipline" -> "pipeline" media: atomisp: Remove unused GPIO related defines and APIs media: atomisp: Replace COMPILATION_ERROR_IF() by static_assert() media: atomisp: Clean up unused macros from math_support.h media: atomisp: csi2-bridge: Add DMI quirk for OV5693 on Xiaomi Mipad2 media: atomisp: Update TODO media: atomisp: Prefix firmware paths with "intel/ipu/" media: atomisp: Remove firmware_name module parameter ...
2024-07-03Merge tag 'media/v6.10-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "Some fixes related to the IPU6 driver" * tag 'media/v6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: ivsc: Depend on IPU_BRIDGE or not IPU_BRIDGE media: intel/ipu6: Fix a null pointer dereference in ipu6_isys_query_stream_by_source media: ipu6: Use the ISYS auxdev device as the V4L2 device's device
2024-07-03driver core: have match() callback in struct bus_type take a const *Greg Kroah-Hartman
In the match() callback, the struct device_driver * should not be changed, so change the function callback to be a const *. This is one step of many towards making the driver core safe to have struct device_driver in read-only memory. Because the match() callback is in all busses, all busses are modified to handle this properly. This does entail switching some container_of() calls to container_of_const() to properly handle the constant *. For some busses, like PCI and USB and HV, the const * is cast away in the match callback as those busses do want to modify those structures at this point in time (they have a local lock in the driver structure.) That will have to be changed in the future if they wish to have their struct device * in read-only-memory. Cc: Rafael J. Wysocki <rafael@kernel.org> Reviewed-by: Alex Elder <elder@kernel.org> Acked-by: Sumit Garg <sumit.garg@linaro.org> Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-21media: Convert from tasklet to BH workqueueAllen Pais
The only generic interface to execute asynchronously in the BH context is tasklet; however, it's marked deprecated and has some design flaws. To replace tasklets, BH workqueue support was recently added. A BH workqueue behaves similarly to regular workqueues except that the queued work items are executed in the BH context. This patch converts drivers/media/* from tasklet to BH workqueue. Based on the work done by Tejun Heo <tj@kernel.org> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-17Merge tag 'v6.10-rc4' into driver-core-nextGreg Kroah-Hartman
We need the driver core and sysfs fixes in here to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-15media: ivsc: Depend on IPU_BRIDGE or not IPU_BRIDGESakari Ailus
The ivsc drivers may use the ipu-bridge but currently it's possible to link the ivsc to the kernel and ipu-bridge as a module. This won't work. Require that the ipu-bridge is either linked to the kernel or disabled if ivsc is linked to the kernel as well, by depending on IPU_BRIDGE or !IPU_BRIDGE. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202406132238.3hXHG7nB-lkp@intel.com/ Fixes: 33116eb12c6b ("media: ivsc: csi: Use IPU bridge") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: intel/ipu6: Fix a null pointer dereference in ↵Hao Ge
ipu6_isys_query_stream_by_source stream is NULL when source is less than 0 in ipu6_isys_query_stream_by_source. It's a null pointer dereference. Actually, this should be isys->adev->auxdev.dev. Fixes: 3c1dfb5a69cf ("media: intel/ipu6: input system video nodes and buffer queues") Signed-off-by: Hao Ge <gehao@kylinos.cn> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ipu6: Use the ISYS auxdev device as the V4L2 device's deviceSakari Ailus
The V4L2 device has a struct device field used for a number of purposes, one of which determining whether a created sub-device needs to increment the module's use count to avoid unloading the module. Thus the owner field in this case must refer to the ipu6-isys module, corresponding to the auxdev of the IPU6 ISYS. Fixes: f50c4ca0a820 ("media: intel/ipu6: add the main input system driver") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ipu-bridge: Add HIDs from out of tree IPU6 driver ipu-bridge copyHans de Goede
The out of tree IPU6 driver comes with its own copy of the ipu-bridge code. It also comes bundled with standard v4l2 sensor drivers. Many of these have been mainlined and the rest is being mainlined but not all are upstream yet. The latest version of the out of tree code now will use the mainline kernel ipu-bridge version when build against new enough kernels. This however breaks support for (bundled) sensor drivers which do not (yet) have an entry in the mainline ipu-bridge code. Add the missing entries to the mainline ipu-bridge code to make the transition to having everything in mainline easier. The alternative HID for the OV13B10 and the OV08x40 entries both are for sensors already supported in mainline which were missing. The downside of adding these HIDs is that this will cause the IPU3 / IPU6 drivers to delay registering there /dev/video# nodes until a sensor driver has bound, which for the non mainline drivers may never happen. This is not really an issue because almost all IPU designs only have front (user) facing sensors and all the added HIDs are for the main RGB (not IR) sensor. So if the sensor driver is missing then the user can already not use the camera and adding these HIDs does not really change that. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ipu-bridge: Sort ipu_supported_sensors[] array by ACPI HIDHans de Goede
Sort the sensors in ipu_supported_sensors[] by ACPI HID rather then having them in some random order. While at it also use the correct (same as datasheet) capitalization for the sensor names in the comments. Instead of sometimes writing OV#### and sometimes ov####. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ivsc: csi: remove privacy status in struct mei_csiWentong Wu
The privacy status is maintained by privacy_ctrl, on which all of the privacy status changes will go through, so there is no point in maintaining one more element any more. Reported-by: Hao Yao <hao.yao@intel.com> Signed-off-by: Wentong Wu <wentong.wu@intel.com> Tested-by: Jason Chen <jason.z.chen@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ivsc: csi: don't count privacy on as errorWentong Wu
Prior to the ongoing command privacy is on, it would return -1 to indicate the current privacy status, and the ongoing command would be well executed by firmware as well, so this is not error. This patch changes its behavior to notify privacy on directly by V4L2 privacy control instead of reporting error. Fixes: 29006e196a56 ("media: pci: intel: ivsc: Add CSI submodule") Cc: stable@vger.kernel.org # for 6.6 and later Reported-by: Hao Yao <hao.yao@intel.com> Signed-off-by: Wentong Wu <wentong.wu@intel.com> Tested-by: Jason Chen <jason.z.chen@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: ivsc: csi: add separate lock for v4l2 control handlerWentong Wu
There're possibilities that privacy status change notification happens in the middle of the ongoing mei command which already takes the command lock, but v4l2_ctrl_s_ctrl() would also need the same lock prior to this patch, so this may results in circular locking problem. This patch adds one dedicated lock for v4l2 control handler to avoid described issue. Fixes: 29006e196a56 ("media: pci: intel: ivsc: Add CSI submodule") Cc: stable@vger.kernel.org # for 6.6 and later Reported-by: Hao Yao <hao.yao@intel.com> Signed-off-by: Wentong Wu <wentong.wu@intel.com> Tested-by: Jason Chen <jason.z.chen@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: pci: add missing MODULE_DESCRIPTION() macrosJeff Johnson
With ARCH=x86, make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/ttpci/budget-core.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/bt8xx/bt878.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/ivtv/ivtvfb.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15media: saa7134: add missing MODULE_DESCRIPTION() macrosJeff Johnson
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/saa7134/saa7134-empress.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/saa7134/saa7134-go7007.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/saa7134/saa7134-alsa.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/pci/saa7134/saa7134-dvb.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15saa7134: Unchecked i2c_transfer function result fixedAleksandr Burakov
Return value of function 'i2c_transfer' is not checked that may cause undefined behaviour. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 2cf36ac44730 ("[PATCH] v4l: 656: added support for the following cards") Signed-off-by: Aleksandr Burakov <a.burakov@rosalinux.ru> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-13auxbus: make to_auxiliary_drv accept and return a constant pointerGreg Kroah-Hartman
In the quest to make struct device constant, start by making to_auxiliary_drv() return a constant pointer so that drivers that call this can be fixed up before the driver core changes. As the return type previously was not constant, also fix up all callers that were assuming that the pointer was not going to be a constant one in order to not break the build. Cc: Dave Ertman <david.m.ertman@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Bingbu Cao <bingbu.cao@intel.com> Cc: Tianshu Qiu <tian.shu.qiu@intel.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Michael Chan <michael.chan@broadcom.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Tony Nguyen <anthony.l.nguyen@intel.com> Cc: Saeed Mahameed <saeedm@nvidia.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: Tariq Toukan <tariqt@nvidia.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Cc: Bard Liao <yung-chuan.liao@linux.intel.com> Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Cc: Daniel Baluta <daniel.baluta@nxp.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: linux-media@vger.kernel.org Cc: netdev@vger.kernel.org Cc: intel-wired-lan@lists.osuosl.org Cc: linux-rdma@vger.kernel.org Cc: sound-open-firmware@alsa-project.org Cc: linux-sound@vger.kernel.org Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> # drivers/media/pci/intel/ipu6 Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/20240611130103.3262749-7-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-12mailmap: Add my outdated addresses to the map fileAndy Shevchenko
There is a couple of outdated addresses that are still visible in the Git history, add them to .mailmap. While at it, replace one in the comment. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-06-10Merge tag 'v6.10-rc3'Hans Verkuil
Linux 6.10-rc3 This is needed for the ipu6 and mei fixes. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-04media: ipu6: Print CSR messages using debug levelSakari Ailus
It's entirely normal CSR will return non-indicative values after its reset (0). There's no need to warn the user about that. Suggested-by: Bingbu Cao <bingbu.cao@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-04media: ipu6: Rework CSI-2 sub-device streaming controlSakari Ailus
CSI-2 sub-device streaming control should use {enable,disable}_streams pad ops and not s_stream video ops as the sub-device supports streams. Fix this by removing driver-implemented stream management and moving sensor streaming control to the CSI-2 sub-device sub-driver. Fixes: a11a5570a09d ("media: intel/ipu6: add IPU6 CSI2 receiver v4l2 sub-device") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-31media: pci/ivtv: Use managed version of pci_enable_deviceRicardo Ribalda
If there is any error during probing, we should probably leave the device in its previous state. pcim_ will take care of this. Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-31media: pci/ivtv: Replace request_mem_region with devm_ variantRicardo Ribalda
The managed device resource version of the function greatly simplifies the error handling. Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-31media: pci/ivtv: Replace ioremap with devm_ variantsRicardo Ribalda
With Managed Device Resources the error handling is simpler. The following smatch warning is silenced: drivers/media/pci/ivtv/ivtv-driver.c: drivers/media/pci/ivtv/ivtv-driver.c:1296 ivtv_probe() warn: 'itv->dec_mem' from ioremap() not released on lines: 1296. drivers/media/pci/ivtv/ivtv-driver.c: drivers/media/pci/ivtv/ivtv-driver.c:1296 ivtv_probe() warn: 'itv->enc_mem' from ioremap() not released on lines: 1296. Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-31media: pci: cx18: Use flex arrays for struct cx18_scbRicardo Ribalda
Replace the old-style single element array with a flexible array. This structure does not seem to be allocated in the code, so there is no need to change anything else. The following cocci warning is fixed: drivers/media/pci/cx18/cx18-scb.h:261:22-29: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>