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2022-06-01Merge tag 'pwm/for-5.19-rc1' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "Quite a large number of conversions this time around, courtesy of Uwe who has been working tirelessly on these. No drivers of the legacy API are left at this point, so as a next step the old API can be removed. Support is added for a few new devices such as the Xilinx AXI timer- based PWMs and the PWM IP found on Sunplus SoCs. Other than that, there's a number of fixes, cleanups and optimizations" * tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (43 commits) pwm: pwm-cros-ec: Add channel type support dt-bindings: google,cros-ec-pwm: Add the new -type compatible dt-bindings: Add mfd/cros_ec definitions pwm: Document that the pinstate of a disabled PWM isn't reliable pwm: twl-led: Implement .apply() callback pwm: lpc18xx: Implement .apply() callback pwm: mediatek: Implement .apply() callback pwm: lpc32xx: Implement .apply() callback pwm: tegra: Implement .apply() callback pwm: stmpe: Implement .apply() callback pwm: sti: Implement .apply() callback pwm: pwm-mediatek: Add support for MediaTek Helio X10 MT6795 dt-bindings: pwm: pwm-mediatek: Add documentation for MT6795 SoC pwm: tegra: Optimize period calculation pwm: renesas-tpu: Improve precision of period and duty_cycle calculation pwm: renesas-tpu: Improve maths to compute register settings pwm: renesas-tpu: Rename variables to match the usual naming pwm: renesas-tpu: Implement .apply() callback pwm: renesas-tpu: Make use of devm functions pwm: renesas-tpu: Make use of dev_err_probe() ...
2022-05-29Merge tag 'dmaengine-5.19-rc1' of ↵Linus Torvalds1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: "Nothing special, this includes a couple of new device support and new driver support and bunch of driver updates. New support: - Tegra gpcdma driver support - Qualcomm SM8350, Sm8450 and SC7280 device support - Renesas RZN1 dma and platform support Updates: - stm32 device pause/resume support and updates - DMA memset ops Documentation and usage clarification - deprecate '#dma-channels' & '#dma-requests' bindings - driver updates for stm32, ptdma idsx etc" * tag 'dmaengine-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (87 commits) dmaengine: idxd: make idxd_wq_enable() return 0 if wq is already enabled dmaengine: sun6i: Add support for the D1 variant dmaengine: sun6i: Add support for 34-bit physical addresses dmaengine: sun6i: Do not use virt_to_phys dt-bindings: dma: sun50i-a64: Add compatible for D1 dmaengine: tegra: Remove unused switch case dmaengine: tegra: Fix uninitialized variable usage dmaengine: stm32-dma: add device_pause/device_resume support dmaengine: stm32-dma: rename pm ops before dma pause/resume introduction dmaengine: stm32-dma: pass DMA_SxSCR value to stm32_dma_handle_chan_done() dmaengine: stm32-dma: introduce stm32_dma_sg_inc to manage chan->next_sg dmaengine: stm32-dmamux: avoid reset of dmamux if used by coprocessor dmaengine: qcom: gpi: Add support for sc7280 dt-bindings: dma: pl330: Add power-domains dmaengine: stm32-mdma: use dev_dbg on non-busy channel spurious it dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler() dmaengine: stm32-mdma: remove GISR1 register dmaengine: ti: deprecate '#dma-channels' dmaengine: mmp: deprecate '#dma-channels' dmaengine: pxa: deprecate '#dma-channels' and '#dma-requests' ...
2022-05-28Merge tag 'pinctrl-v5.19-1' of ↵Linus Torvalds1-12/+18
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Pretty big this time. Mostly due to (nice) Renesas refactorings. Core changes: - New helpers from Andy such as for_each_gpiochip_node() affecting both GPIO and pin control, improving a bunch of drivers in the process. - Pulled in Marc Zyngiers work to make IRQ chips immutable, and started to apply fixups on top. New drivers: - New driver for Marvell MVEBU 98DX2530. - New driver for Mediatek MT8195. - Support Qualcomm PMX65 and PM6125. - New driver for Qualcomm SC7280 LPASS pin control. - New driver for Rockchip RK3588. - New driver for NXP Freescale i.MXRT1170. - New driver for Mediatek MT6795 Helio X10. Improvements: - Several Aspeed G6 cleanups and non-critical fixes. - Thorought refactoring of some of the ever improving Renesas drivers. - Clean up Mediatek MT8192 bindings a bit. - PWM output and clock monitoring in the Ocelot LAN966x driver. - Thorough refactoring and cleanup of the Ralink drivers such as RT2880, RT3883, RT305X, MT7620, MT7621, MT7628 splitting these into proper sub-drivers" * tag 'pinctrl-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (161 commits) pinctrl: apple: Use a raw spinlock for the regmap pinctrl: berlin: bg4ct: Use devm_platform_*ioremap_resource() APIs pinctrl: intel: Fix kernel doc format, i.e. add return sections dt-bindings: pinctrl: qcom: Drop 'maxItems' on 'wakeup-parent' pinctrl: starfive: Make the irqchip immutable pinctrl: mediatek: Add pinctrl driver for MT6795 Helio X10 dt-bindings: pinctrl: Add MediaTek MT6795 pinctrl bindings pinctrl: freescale: Add i.MXRT1170 pinctrl driver support dt-bindings: pinctrl: add i.MXRT1170 pinctrl Documentation dt-bindings: pinctrl: rockchip: increase max amount of device functions dt-bindings: pinctrl: qcom,pmic-gpio: add 'gpio-reserved-ranges' dt-bindings: pinctrl: qcom,pmic-gpio: add 'input-disable' dt-bindings: pinctrl: qcom,pmic-gpio: describe gpio-line-names dt-bindings: pinctrl: qcom,pmic-gpio: fix matching pin config dt-bindings: pinctrl: qcom,pmic-gpio: document PM8150L and PMM8155AU pinctrl: qcom: spmi-gpio: Add pm6125 compatible dt-bindings: pinctrl: qcom-pmic-gpio: Add pm6125 compatible pinctrl: intel: Drop unused irqchip member in struct intel_pinctrl pinctrl: intel: make irq_chip immutable pinctrl: cherryview: Use GPIO chip pointer in chv_gpio_irq_mask_unmask() ...
2022-05-25Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-22/+5
Pull drm updates from Dave Airlie: "Intel have enabled DG2 on certain SKUs for laptops, AMD has started some new GPU support, msm has user allocated VA controls dma-buf: - add dma_resv_replace_fences - add dma_resv_get_singleton - make dma_excl_fence private core: - EDID parser refactorings - switch drivers to drm_mode_copy/duplicate - DRM managed mutex initialization display-helper: - put HDMI, SCDC, HDCP, DSC and DP into new module gem: - rework fence handling ttm: - rework bulk move handling - add common debugfs for resource managers - convert to kvcalloc format helpers: - support monochrome formats - RGB888, RGB565 to XRGB8888 conversions fbdev: - cfb/sys_imageblit fixes - pagelist corruption fix - create offb platform device - deferred io improvements sysfb: - Kconfig rework - support for VESA mode selection bridge: - conversions to devm_drm_of_get_bridge - conversions to panel_bridge - analogix_dp - autosuspend support - it66121 - audio support - tc358767 - DSI to DPI support - icn6211 - PLL/I2C fixes, DT property - adv7611 - enable DRM_BRIDGE_OP_HPD - anx7625 - fill ELD if no monitor - dw_hdmi - add audio support - lontium LT9211 support, i.MXMP LDB - it6505: Kconfig fix, DPCD set power fix - adv7511 - CEC support for ADV7535 panel: - ltk035c5444t, B133UAN01, NV3052C panel support - DataImage FG040346DSSWBG04 support - st7735r - DT bindings fix - ssd130x - fixes i915: - DG2 laptop PCI-IDs ("motherboard down") - Initial RPL-P PCI IDs - compute engine ABI - DG2 Tile4 support - DG2 CCS clear color compression support - DG2 render/media compression formats support - ATS-M platform info - RPL-S PCI IDs added - Bump ADL-P DMC version to v2.16 - Support static DRRS - Support multiple eDP/LVDS native mode refresh rates - DP HDR support for HSW+ - Lots of display refactoring + fixes - GuC hwconfig support and query - sysfs support for multi-tile - fdinfo per-client gpu utilisation - add geometry subslices query - fix prime mmap with LMEM - fix vm open count and remove vma refcounts - contiguous allocation fixes - steered register write support - small PCI BAR enablement - GuC error capture support - sunset igpu legacy mmap support for newer devices - GuC version 70.1.1 support amdgpu: - Initial SoC21 support - SMU 13.x enablement - SMU 13.0.4 support - ttm_eu cleanups - USB-C, GPUVM updates - TMZ fixes for RV - RAS support for VCN - PM sysfs code cleanup - DC FP rework - extend CG/PG flags to 64-bit - SI dpm lockdep fix - runtime PM fixes amdkfd: - RAS/SVM fixes - TLB flush fixes - CRIU GWS support - ignore bogus MEC signals more efficiently msm: - Fourcc modifier for tiled but not compressed layouts - Support for userspace allocated IOVA (GPU virtual address) - DPU: DSC (Display Stream Compression) support - DP: eDP support - DP: conversion to use drm_bridge and drm_bridge_connector - Merge DPU1 and MDP5 MDSS driver - DPU: writeback support nouveau: - make some structures static - make some variables static - switch to drm_gem_plane_helper_prepare_fb radeon: - misc fixes/cleanups mxsfb: - rework crtc mode setting - LCDIF CRC support etnaviv: - fencing improvements - fix address space collisions - cleanup MMU reference handling gma500: - GEM/GTT improvements - connector handling fixes komeda: - switch to plane reset helper mediatek: - MIPI DSI improvements omapdrm: - GEM improvements qxl: - aarch64 support vc4: - add a CL submission tracepoint - HDMI YUV support - HDMI/clock improvements - drop is_hdmi caching virtio: - remove restriction of non-zero blob types vmwgfx: - support for cursormob and cursorbypass 4 - fence improvements tidss: - reset DISPC on startup solomon: - SPI support - DT improvements sun4i: - allwinner D1 support - drop is_hdmi caching imx: - use swap() instead of open-coding - use devm_platform_ioremap_resource - remove redunant initializations ast: - Displayport support rockchip: - Refactor IOMMU initialisation - make some structures static - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi - support swapped YUV formats, - clock improvements - rk3568 support - VOP2 support mediatek: - MT8186 support tegra: - debugabillity improvements" * tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits) drm/i915/dsi: fix VBT send packet port selection for ICL+ drm/i915/uc: Fix undefined behavior due to shift overflowing the constant drm/i915/reg: fix undefined behavior due to shift overflowing the constant drm/i915/gt: Fix use of static in macro mismatch drm/i915/audio: fix audio code enable/disable pipe logging drm/i915: Fix CFI violation with show_dynamic_id() drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c drm/i915/gt: Fix build error without CONFIG_PM drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations drm/msm: don't free the IRQ if it was not requested drm/msm/dpu: limit writeback modes according to max_linewidth drm/amd: Don't reset dGPUs if the system is going to s2idle drm/amdgpu: Unmap legacy queue when MES is enabled drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() drm/msm: Fix fb plane offset calculation drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init drm/msm/dsi: don't powerup at modeset time for parade-ps8640 drm/rockchip: Change register space names in vop2 dt-bindings: display: rockchip: make reg-names mandatory for VOP2 ...
2022-05-25Merge tag 'docs-5.19' of git://git.lwn.net/linuxLinus Torvalds2-2/+2
Pull documentation updates from Jonathan Corbet: "It was a moderately busy cycle for documentation; highlights include: - After a long period of inactivity, the Japanese translations are seeing some much-needed maintenance and updating. - Reworked IOMMU documentation - Some new documentation for static-analysis tools - A new overall structure for the memory-management documentation. This is an LSFMM outcome that, it is hoped, will help encourage developers to fill in the many gaps. Optimism is eternal...but hopefully it will work. - More Chinese translations. Plus the usual typo fixes, updates, etc" * tag 'docs-5.19' of git://git.lwn.net/linux: (70 commits) docs: pdfdocs: Add space for chapter counts >= 100 in TOC docs/zh_CN: Add dev-tools/gdb-kernel-debugging.rst Chinese translation input: Docs: correct ntrig.rst typo input: Docs: correct atarikbd.rst typos MAINTAINERS: Become the docs/zh_CN maintainer docs/zh_CN: fix devicetree usage-model translation mm,doc: Add new documentation structure Documentation: drop more IDE boot options and ide-cd.rst Documentation/process: use scripts/get_maintainer.pl on patches MAINTAINERS: Add entry for DOCUMENTATION/JAPANESE docs/trans/ja_JP/howto: Don't mention specific kernel versions docs/ja_JP/SubmittingPatches: Request summaries for commit references docs/ja_JP/SubmittingPatches: Add Suggested-by as a standard signature docs/ja_JP/SubmittingPatches: Randy has moved docs/ja_JP/SubmittingPatches: Suggest the use of scripts/get_maintainer.pl docs/ja_JP/SubmittingPatches: Update GregKH links Documentation/sysctl: document max_rcu_stall_to_panic Documentation: add missing angle bracket in cgroup-v2 doc Documentation: dev-tools: use literal block instead of code-block docs/zh_CN: add vm numa translation ...
2022-05-24Merge tag 'media/v5.19-1' of ↵Linus Torvalds3-4/+91
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - dvb-usb drivers entries got reworked to avoid usage of magic numbers to refer to data position inside tables - vcodec driver has gained support for MT8186 and for vp8 and vp9 stateless codecs - hantro has gained support for Hantro G1 on RK366x - Added more h264 levels on coda960 - ccs gained support for MIPI CSI-2 28 bits per pixel raw data type - venus driver gained support for Qualcomm custom compressed pixel formats - lots of driver fixes and updates * tag 'media/v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: hantro: Enable HOLD_CAPTURE_BUF for H.264 media: hantro: Add H.264 field decoding support media: hantro: h264: Make dpb entry management more robust media: hantro: Stop using H.264 parameter pic_num media: rkvdec: Enable capture buffer holding for H264 media: rkvdec-h264: Add field decoding support media: rkvdec: Ensure decoded resolution fit coded resolution media: rkvdec: h264: Fix reference frame_num wrap for second field media: rkvdec: h264: Validate and use pic width and height in mbs media: rkvdec: Move H264 SPS validation in rkvdec-h264 media: rkvdec: h264: Fix bit depth wrap in pps packet media: rkvdec: h264: Fix dpb_valid implementation media: rkvdec: Stop overclocking the decoder media: v4l2: Reorder field reflist media: h264: Sort p/b reflist using frame_num media: v4l2: Trace calculated p/b0/b1 initial reflist media: h264: Store all fields into the unordered list media: h264: Store current picture fields media: h264: Increase reference lists size to 32 media: h264: Use v4l2_h264_reference for reflist ...
2022-05-23Merge tag 'irq-core-2022-05-23' of ↵Linus Torvalds1-33/+142
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull interrupt handling updates from Thomas Gleixner: "Core code: - Make the managed interrupts more robust by shutting them down in the core code when the assigned affinity mask does not contain online CPUs. - Make the irq simulator chip work on RT - A small set of cpumask and power manageent cleanups Drivers: - A set of changes which mark GPIO interrupt chips immutable to prevent the GPIO subsystem from modifying it under the hood. This provides the necessary infrastructure and converts a set of GPIO and pinctrl drivers over. - A set of changes to make the pseudo-NMI handling for GICv3 more robust: a missing barrier and consistent handling of the priority mask. - Another set of GICv3 improvements and fixes, but nothing outstanding - The usual set of improvements and cleanups all over the place - No new irqchip drivers and not even a new device tree binding! 100+ interrupt chips are truly enough" * tag 'irq-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits) irqchip: Add Kconfig symbols for sunxi drivers irqchip/gic-v3: Fix priority mask handling irqchip/gic-v3: Refactor ISB + EOIR at ack time irqchip/gic-v3: Ensure pseudo-NMIs have an ISB between ack and handling genirq/irq_sim: Make the irq_work always run in hard irq context irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x irqchip/gic: Improved warning about incorrect type irqchip/csky: Return true/false (not 1/0) from bool functions irqchip/imx-irqsteer: Add runtime PM support irqchip/imx-irqsteer: Constify irq_chip struct irqchip/armada-370-xp: Enable MSI affinity configuration irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value irqchip/sun6i-r: Use NULL for chip_data irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup irqchip/exiu: Fix acknowledgment of edge triggered interrupts irqchip/gic-v3: Claim iomem resources dt-bindings: interrupt-controller: arm,gic-v3: Make the v2 compat requirements explicit irqchip/gic-v3: Relax polling of GIC{R,D}_CTLR.RWP irqchip/gic-v3: Detect LPI invalidation MMIO registers ...
2022-05-22Merge tag 'intel-pinctrl-v5.19-2' of ↵Linus Walleij1-12/+18
gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel intel-pinctrl for v5.19-2 * Fix immutable IRQ chip examples in the GPIO documentation * Make use of immutable IRQ chip in Intel pin control drivers * Add module alias for Intel Apollo Lake The following is an automated git shortlog grouped by driver: baytrail: - make irq_chip immutable broxton: - Add module alias for Intel Apollo Lake cherryview: - Use GPIO chip pointer in chv_gpio_irq_mask_unmask() - make irq_chip immutable Documentation: - gpio: Advertise irqd_to_hwirq() helper in the examples - gpio: Fix IRQ mask and unmask examples intel: - Fix kernel doc format, i.e. add return sections - Drop unused irqchip member in struct intel_pinctrl - make irq_chip immutable lynxpoint: - make irq_chip immutable
2022-05-20pwm: Document that the pinstate of a disabled PWM isn't reliableUwe Kleine-König1-0/+6
Some (most?) drivers emit the inactive state when the PWM is disabled. However there are exceptions, so document that a consumer better doesn't depend on this behaviour. Some known exceptions: - imx27 emits 0 independent of the configured polarity - mxs just drives the output to the last emitted state. - iqs620a makes the output tristated on disable, so an external pull-down would be required. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-05-17media: Documentation: mc: Add media_device_{init,cleanup}Sakari Ailus1-3/+10
Document that drivers must first initialise a media device before registering it, and clean up once the media device is unregistered. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-05-16Documentation: gpio: Advertise irqd_to_hwirq() helper in the examplesAndy Shevchenko1-6/+12
Instead of direct dereferencing the IRQ data in order to get HW IRQ number use the irqd_to_hwirq() helper. Fixes: 5644b66a9c63 ("Documentation: Update the recommended pattern for GPIO irqchips") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-16Documentation: gpio: Fix IRQ mask and unmask examplesAndy Shevchenko1-6/+6
After switching to immutable IRQ chips for GPIO drivers the examples become uncompilable due to wrong IRQ API, i.e. irq_desc_get_handler_data() in use. Replace it with proper irq_data_get_irq_chip_data() call where it applies. Fixes: 5644b66a9c63 ("Documentation: Update the recommended pattern for GPIO irqchips") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-11vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()Jason Gunthorpe1-2/+2
Every caller has a readily available vfio_device pointer, use that instead of passing in a generic struct device. The struct vfio_device already contains the group we need so this avoids complexity, extra refcountings, and a confusing lifecycle model. Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/3-v4-8045e76bf00b+13d-vfio_mdev_no_group_jgg@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-05-11Merge tag 'gvt-next-2022-04-29' into v5.19/vfio/nextAlex Williamson1-22/+5
Merge GVT-g dependencies for vfio. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-05-05Merge branch 'irq/gpio-immutable' of ↵Linus Walleij1-33/+142
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into devel
2022-04-28Documentation: devres: fix typo in interface listJohan Hovold1-1/+1
Fix the misspelled devm_get_clk_from_child() helper name in the devres interface list. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20220427073142.16700-1-johan+linaro@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-04-26Merge drm/drm-next into drm-intel-nextJani Nikula1-0/+6
Need to bring commit d8bb92e70a43 ("drm/dp: Factor out a function to probe a DPCD address") back as a dependency to further work in drm-intel-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2022-04-26firmware_loader: Add sysfs nodes to monitor fw_uploadRuss Weight1-2/+21
Add additional sysfs nodes to monitor the transfer of firmware upload data to the target device: cancel: Write 1 to cancel the data transfer error: Display error status for a failed firmware upload remaining_size: Display the remaining amount of data to be transferred status: Display the progress of the firmware upload Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Tianfei zhang <tianfei.zhang@intel.com> Tested-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20220421212204.36052-6-russell.h.weight@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-26firmware_loader: Add firmware-upload supportRuss Weight2-0/+108
Extend the firmware subsystem to support a persistent sysfs interface that userspace may use to initiate a firmware update. For example, FPGA based PCIe cards load firmware and FPGA images from local FLASH when the card boots. The images in FLASH may be updated with new images provided by the user at his/her convenience. A device driver may call firmware_upload_register() to expose persistent "loading" and "data" sysfs files. These files are used in the same way as the fallback sysfs "loading" and "data" files. When 0 is written to "loading" to complete the write of firmware data, the data is transferred to the lower-level driver using pre-registered call-back functions. The data transfer is done in the context of a kernel worker thread. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Tianfei zhang <tianfei.zhang@intel.com> Tested-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20220421212204.36052-5-russell.h.weight@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-24media: Documentation: add documentation about subdev stateTomi Valkeinen1-0/+69
Add documentation about centrally managed subdev state. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24media: cec: add optional adap_configured callbackHans Verkuil1-1/+12
This new optional callback is called when the adapter is fully configured or fully unconfigured. Some drivers may have to take action when this happens. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-21vfio/mdev: Remove mdev_parent_opsJason Gunthorpe1-19/+5
The last useful member in this struct is the supported_type_groups, move it to the mdev_driver and delete mdev_parent_ops. Replace it with mdev_driver as an argument to mdev_register_device() Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-33-hch@lst.de Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
2022-04-21vfio/mdev: Remove vfio_mdev.cJason Gunthorpe1-3/+0
Now that all mdev drivers directly create their own mdev_device driver and directly register with the vfio core's vfio_device_ops this is all dead code. Delete vfio_mdev.c and the mdev_parent_ops members that are connected to it. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-31-hch@lst.de Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
2022-04-20Documentation: fix tty linkJiri Slaby1-1/+1
The commit below causes the following warnings: Documentation/driver-api/index.rst:14: WARNING: toctree contains reference to nonexisting document 'driver-api/tty' Documentation/driver-api/tty/index.rst: WARNING: document isn't included in any toctree This is because I omitted the "/index" part from the link. That part is needed for directories and I was confused by the surrounding links which are links to files. Fix it in this patch. Fixes: b96cd8b05ead ("Documentation: move tty to driver-api") Cc: Jonathan Corbet <corbet@lwn.net> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220419074302.29632-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-20dmaengine: Document dmaengine_prep_dma_memsetBen Walker1-0/+6
Document this function to make clear the expected behavior of the 'value' parameter. It was intended to match the behavior of POSIX memset as laid out here: https://lore.kernel.org/dmaengine/YejrA5ZWZ3lTRO%2F1@matsya/ Signed-off-by: Ben Walker <benjamin.walker@intel.com> Link: https://lore.kernel.org/r/20220301182551.883474-2-benjamin.walker@intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-04-19Merge branch irq/gpio-immutable into irq/irqchip-nextMarc Zyngier1-33/+142
* irq/gpio-immutable: : . : First try at preventing the GPIO subsystem from abusing irq_chip : data structures. The general idea is to have an irq_chip flag : to tell the GPIO subsystem that these structures are immutable, : and to convert drivers one by one. : . Documentation: Update the recommended pattern for GPIO irqchips gpio: Update TODO to mention immutable irq_chip structures pinctrl: amd: Make the irqchip immutable pinctrl: msmgpio: Make the irqchip immutable pinctrl: apple-gpio: Make the irqchip immutable gpio: pl061: Make the irqchip immutable gpio: tegra186: Make the irqchip immutable gpio: Add helpers to ease the transition towards immutable irq_chip gpio: Expose the gpiochip_irq_re[ql]res helpers gpio: Don't fiddle with irqchips marked as immutable Signed-off-by: Marc Zyngier <maz@kernel.org>
2022-04-19Documentation: Update the recommended pattern for GPIO irqchipsMarc Zyngier1-33/+142
Update the documentation to get rid of the per-gpio_irq_chip irq_chip structure, and give examples of the new pattern. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220419141846.598305-11-maz@kernel.org
2022-04-14Documentation: tty: n_gsm, use power of ReSTJiri Slaby1-70/+74
Reformat the whole document, so that automatic numbering and TOC is properly generated. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-7-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-14Documentation: tty: n_gsm, delete "Additional Documentation"Jiri Slaby1-10/+0
All of the URLs give 404. There is a little point to preserve them. If really need be, we could try archive.org if the documents are not there by a chance. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-6-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-14Documentation: tty: move moxa-smartio.rst to ttyJiri Slaby3-1/+1
It is a tty_driver, not serial -- uart_driver. So move it to the tty docs dir too. (The same as the driver itself.) Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-5-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-14Documentation: tty: move n_gsm to ttyJiri Slaby3-1/+1
We have n_tty documented in Documentation/driver-api/tty/. n_gsm belongs there too, so move from serial/ to tty/ too. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-4-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-14Documentation: tty: introduce "Other Documentation"Jiri Slaby1-1/+10
So far only n_tty belongs here, but in the next patches, more will come. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-14Documentation: move tty to driver-apiJiri Slaby10-1/+527
Based on discussion starting as 87mthw2o93.fsf@meer.lwn.net, let's move the tty documentation to driver-api. It's more appropriate there. Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411110143.10019-2-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-11dmaengine: Clarify cyclic transfer residue documentationPaul Kocialkowski1-1/+1
The current documentation for the residue reported in a cyclic transfer case mentions that the reported residue should be relative to the current period only. However the definition of DMA_RESIDUE_GRANULARITY_SEGMENT specifies that the residue should be updated after each period for a cyclic transfer, which is in direct contradiction. Moreover the pcm_dmaengine common code uses the residue relative to the whole cyclic buffer size, not one period. Correct the residue-related documentation to reflect this. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Link: https://lore.kernel.org/r/20220331134114.703782-1-paul.kocialkowski@bootlin.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-04-11libata: Improve ATA queued command allocationJohn Garry1-11/+0
Improve ATA queued command allocation as follows: - For attaining a qc tag for a SAS host we need to allocate a bit in ata_port.sas_tag_allocated bitmap. However we already have a unique tag per device in range [0, ATA_MAX_QUEUE -1] in the scsi cmnd budget token, so just use that instead. - It is a bit pointless to have ata_qc_new_init() in libata-core.c since it pokes scsi internals, so inline it in ata_scsi_qc_new() (in libata-scsi.c). Also update Doc accordingly. - Use standard SCSI helpers set_host_byte() and set_status_byte() in ata_scsi_qc_new(). Christoph Hellwig originally contributed the change to inline ata_qc_new_init(). Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-04-08Merge tag 'drm-misc-next-fixes-2022-04-07' of ↵Dave Airlie1-0/+6
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes drm-misc-next-fixes for v5.18-rc2: - fix warning about fence containers - fix logic error in new fence merge code - handle empty dma_fence_arrays gracefully - Try all possible cases for bridge/panel detection. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3b8e6439-612e-f640-e380-51e834393e94@linux.intel.com
2022-04-05docs: driver-api/thermal/intel_dptf: Use copyright symbolAkira Yokosawa1-1/+1
Using a substitution pattern of "|copy|" without including isonum.txt causes a doc build warning. Using the symbol "©" itself is a better choice for those who read .rst sources. Reported by: Randy Dunlap <rdunlap@infradead.org> Fixes: 16c02447f3e1 ("Documentation: thermal: DPTF Documentation") Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-doc@vger.kernel.org Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-03-30Merge tag 'libnvdimm-for-5.18' of ↵Linus Torvalds1-318/+88
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "The update for this cycle includes the deprecation of block-aperture mode and a new perf events interface for the papr_scm nvdimm driver. The perf events approach was acked by PeterZ. - Add perf support for nvdimm events, initially only for 'papr_scm' devices. - Deprecate the 'block aperture' support in libnvdimm, it only ever existed in the specification, not in shipping product" * tag 'libnvdimm-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nvdimm/blk: Fix title level MAINTAINERS: remove section LIBNVDIMM BLK: MMIO-APERTURE DRIVER powerpc/papr_scm: Fix build failure when drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set nvdimm/region: Delete nd_blk_region infrastructure ACPI: NFIT: Remove block aperture support nvdimm/namespace: Delete nd_namespace_blk nvdimm/namespace: Delete blk namespace consideration in shared paths nvdimm/blk: Delete the block-aperture window driver nvdimm/region: Fix default alignment for small regions docs: ABI: sysfs-bus-nvdimm: Document sysfs event format entries for nvdimm pmu powerpc/papr_scm: Add perf interface support drivers/nvdimm: Add perf interface to expose nvdimm performance stats drivers/nvdimm: Add nvdimm pmu structure
2022-03-28Merge tag 'char-misc-5.18-rc1' of ↵Linus Torvalds2-16/+13
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
2022-03-25dma-buf: add dma_fence_unwrap v2Christian König1-0/+6
Add a general purpose helper to deep dive into dma_fence_chain/dma_fence_array structures and iterate over all the fences in them. This is useful when we need to flatten out all fences in those structures. v2: some selftests cleanup, improved function naming and documentation Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220311110244.1245-1-christian.koenig@amd.com
2022-03-24Merge tag 'cxl-for-5.18' of ↵Linus Torvalds1-2/+313
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull CXL (Compute Express Link) updates from Dan Williams: "This development cycle extends the subsystem to discover CXL resources throughout a CXL/PCIe switch topology and respond to hot add/remove events anywhere in that topology. This is more foundational infrastructure in preparation for dynamic memory region provisioning support. Recall that CXL memory regions, as the new "Theory of Operation" section of Documentation/driver-api/cxl/memory-devices.rst describes, bring storage volume striping semantics to memory. The hot add/remove behavior is validated with extensions to the cxl_test unit test environment and this test in the cxl-cli test suite: https://github.com/pmem/ndctl/blob/djbw/for-74/cxl/test/cxl-topology.sh Summary: - Add a driver for 'struct cxl_memdev' objects responsible for CXL.mem operation as distinct from 'cxl_pci' mailbox operations. Its primary responsibility is enumerating an endpoint 'struct cxl_port' and all the 'struct cxl_port' instances between an endpoint and the CXL platform root. - Add a driver for 'struct cxl_port' objects responsible for enumerating and operating all Host-managed Device Memory (HDM) decoder resources between the platform-level CXL memory description, all intervening host bridges / switches, and the HDM resources in endpoints. - Update the cxl_pci driver to validate CXL.mem operation precursors to HDM decoder operation like ready-polling, and legacy CXL 1.1 DVSEC based CXL.mem configuration. - Add basic lockdep coverage for usage of device_lock() on CXL subsystem objects similar to what exists for LIBNVDIMM. Include a compile-time switch for which subsystem to validate at run-time. - Update cxl_test to emulate a one level switch topology. - Document a "Theory of Operation" for the subsystem. - Add 'numa_node' and 'serial' attributes to cxl_memdev sysfs - Include miscellaneous fixes for spec / QEMU CXL emulation compatibility and static analysis reports" * tag 'cxl-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (48 commits) cxl/core/port: Fix NULL but dereferenced coccicheck error cxl/port: Hold port reference until decoder release cxl/port: Fix endpoint refcount leak cxl/core: Fix cxl_device_lock() class detection cxl/core/port: Fix unregister_port() lock assertion cxl/regs: Fix size of CXL Capability Header Register cxl/core/port: Handle invalid decoders cxl/core/port: Fix / relax decoder target enumeration tools/testing/cxl: Add a physical_node link tools/testing/cxl: Enumerate mock decoders tools/testing/cxl: Mock one level of switches tools/testing/cxl: Fix root port to host bridge assignment tools/testing/cxl: Mock dvsec_ranges() cxl/core/port: Add endpoint decoders cxl/core: Move target_list out of base decoder attributes cxl/mem: Add the cxl_mem driver cxl/core/port: Add switch port enumeration cxl/memdev: Add numa_node attribute cxl/pci: Emit device serial number cxl/pci: Implement wait for media active ...
2022-03-24Merge tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drmLinus Torvalds2-9/+9
Pull drm updates from Dave Airlie: "Lots of work all over, Intel improving DG2 support, amdkfd CRIU support, msm new hw support, and faster fbdev support. dma-buf: - rename dma-buf-map to iosys-map core: - move buddy allocator to core - add pci/platform init macros - improve EDID parser deep color handling - EDID timing type 7 support - add GPD Win Max quirk - add yes/no helpers to string_helpers - flatten syncobj chains - add nomodeset support to lots of drivers - improve fb-helper clipping support - add default property value interface fbdev: - improve fbdev ops speed ttm: - add a backpointer from ttm bo->ttm resource dp: - move displayport headers - add a dp helper module bridge: - anx7625 atomic support, HDCP support panel: - split out panel-lvds and lvds bindings - find panels in OF subnodes privacy: - add chromeos privacy screen support fb: - hot unplug fw fb on forced removal simpledrm: - request region instead of marking ioresource busy - add panel oreintation property udmabuf: - fix oops with 0 pages amdgpu: - power management code cleanup - Enable freesync video mode by default - RAS code cleanup - Improve VRAM access for debug using SDMA - SR-IOV rework special register access and fixes - profiling power state request ioctl - expose IP discovery via sysfs - Cyan skillfish updates - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates - expose benchmark tests via debugfs - add module param to disable XGMI for testing - GPU reset debugfs register dumping support amdkfd: - CRIU support - SDMA queue fixes radeon: - UVD suspend fix - iMac backlight fix i915: - minimal parallel submission for execlists - DG2-G12 subplatform added - DG2 programming workarounds - DG2 accelerated migration support - flat CCS and CCS en