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2024-03-25fbdev: Select I/O-memory framebuffer ops for SBusGravatar Thomas Zimmermann 1-0/+3
Framebuffer I/O on the Sparc Sbus requires read/write helpers for I/O memory. Select FB_IOMEM_FOPS accordingly. Reported-by: Nick Bowler <nbowler@draconx.ca> Closes: https://lore.kernel.org/lkml/5bc21364-41da-a339-676e-5bb0f4faebfb@draconx.ca/ Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 8813e86f6d82 ("fbdev: Remove default file-I/O implementations") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v6.8+ Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240322083005.24269-1-tzimmermann@suse.de
2024-03-22Merge tag 'fbdev-for-6.9-rc1' of ↵Gravatar Linus Torvalds 14-56/+86
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev updates from Helge Deller: - Allow console fonts up to 64x128 pixels (Samuel Thibault) - Prevent division-by-zero in fb monitor code (Roman Smirnov) - Drop Renesas ARM platforms from Mobile LCDC framebuffer driver (Geert Uytterhoeven) - Various code cleanups in viafb, uveafb and mb862xxfb drivers by Aleksandr Burakov, Li Zhijian and Michael Ellerman * tag 'fbdev-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: panel-tpo-td043mtea1: Convert sprintf() to sysfs_emit() fbmon: prevent division by zero in fb_videomode_from_videomode() fbcon: Increase maximum font width x height to 64 x 128 fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2 fbdev: mb862xxfb: Fix defined but not used error fbdev: uvesafb: Convert sprintf/snprintf to sysfs_emit fbdev: Restrict FB_SH_MOBILE_LCDC to SuperH
2024-03-21Merge tag 'tty-6.9-rc1' of ↵Gravatar Linus Torvalds 13-318/+248
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY/Serial driver updates and cleanups for 6.9-rc1. Included in here are: - more tty cleanups from Jiri - loads of 8250 driver cleanups from Andy - max310x driver updates - samsung serial driver updates - uart_prepare_sysrq_char() updates for many drivers - platform driver remove callback void cleanups - stm32 driver updates - other small tty/serial driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) dt-bindings: serial: stm32: add power-domains property serial: 8250_dw: Replace ACPI device check by a quirk serial: Lock console when calling into driver before registration serial: 8250_uniphier: Switch to use uart_read_port_properties() serial: 8250_tegra: Switch to use uart_read_port_properties() serial: 8250_pxa: Switch to use uart_read_port_properties() serial: 8250_omap: Switch to use uart_read_port_properties() serial: 8250_of: Switch to use uart_read_port_properties() serial: 8250_lpc18xx: Switch to use uart_read_port_properties() serial: 8250_ingenic: Switch to use uart_read_port_properties() serial: 8250_dw: Switch to use uart_read_port_properties() serial: 8250_bcm7271: Switch to use uart_read_port_properties() serial: 8250_bcm2835aux: Switch to use uart_read_port_properties() serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties() serial: port: Introduce a common helper to read properties serial: core: Add UPIO_UNKNOWN constant for unknown port type serial: core: Move struct uart_port::quirks closer to possible values serial: sh-sci: Call sci_serial_{in,out}() directly serial: core: only stop transmit when HW fifo is empty serial: pch: Use uart_prepare_sysrq_char(). ...
2024-03-21fbdev: panel-tpo-td043mtea1: Convert sprintf() to sysfs_emit()Gravatar Li Zhijian 1-9/+4
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). CC: Helge Deller <deller@gmx.de> CC: linux-omap@vger.kernel.org CC: linux-fbdev@vger.kernel.org CC: dri-devel@lists.freedesktop.org Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-19fbmon: prevent division by zero in fb_videomode_from_videomode()Gravatar Roman Smirnov 1-3/+4
The expression htotal * vtotal can have a zero value on overflow. It is necessary to prevent division by zero like in fb_var_to_videomode(). Found by Linux Verification Center (linuxtesting.org) with Svace. Signed-off-by: Roman Smirnov <r.smirnov@omp.ru> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-16fbcon: Increase maximum font width x height to 64 x 128Gravatar Samuel Thibault 8-31/+65
By using bitmaps we actually support whatever size we would want, but the console currently limits fonts to 64x128 (which gives 60x16 text on 4k screens), so we don't need more for now, and we can easily increase later. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-15fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2Gravatar Aleksandr Burakov 1-2/+2
There are some actions with value 'tmp' but 'dst_addr' is checked instead. It is obvious that a copy-paste error was made here and the value of variable 'tmp' should be checked here. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Aleksandr Burakov <a.burakov@rosalinux.ru> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-15fbdev: mb862xxfb: Fix defined but not used errorGravatar Michael Ellerman 1-9/+9
socrates_gc_mode is defined at the top-level but then only used inside an #ifdef CONFIG_FB_MB862XX_LIME, leading to an error with some configs: drivers/video/fbdev/mb862xx/mb862xxfbdrv.c:36:31: error: ‘socrates_gc_mode’ defined but not used 36 | static struct mb862xx_gc_mode socrates_gc_mode = { Fix it by moving socrates_gc_mode inside that ifdef, immediately prior to the only function where it's used. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-15fbdev: uvesafb: Convert sprintf/snprintf to sysfs_emitGravatar Li Zhijian 1-1/+1
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). sprintf() will be converted as weel if they have. Generally, this patch is generated by make coccicheck M=<path/to/file> MODE=patch \ COCCI=scripts/coccinelle/api/device_attr_show.cocci No functional change intended CC: Helge Deller <deller@gmx.de> CC: linux-fbdev@vger.kernel.org CC: dri-devel@lists.freedesktop.org Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-14Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of ↵Gravatar Linus Torvalds 1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min heap optimizations". - Kuan-Wei Chiu has also sped up the library sorting code in the series "lib/sort: Optimize the number of swaps and comparisons". - Alexey Gladkov has added the ability for code running within an IPC namespace to alter its IPC and MQ limits. The series is "Allow to change ipc/mq sysctls inside ipc namespace". - Geert Uytterhoeven has contributed some dhrystone maintenance work in the series "lib: dhry: miscellaneous cleanups". - Ryusuke Konishi continues nilfs2 maintenance work in the series "nilfs2: eliminate kmap and kmap_atomic calls" "nilfs2: fix kernel bug at submit_bh_wbc()" - Nathan Chancellor has updated our build tools requirements in the series "Bump the minimum supported version of LLVM to 13.0.1". - Muhammad Usama Anjum continues with the selftests maintenance work in the series "selftests/mm: Improve run_vmtests.sh". - Oleg Nesterov has done some maintenance work against the signal code in the series "get_signal: minor cleanups and fix". Plus the usual shower of singleton patches in various parts of the tree. Please see the individual changelogs for details. * tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits) nilfs2: prevent kernel bug at submit_bh_wbc() nilfs2: fix failure to detect DAT corruption in btree and direct mappings ocfs2: enable ocfs2_listxattr for special files ocfs2: remove SLAB_MEM_SPREAD flag usage assoc_array: fix the return value in assoc_array_insert_mid_shortcut() buildid: use kmap_local_page() watchdog/core: remove sysctl handlers from public header nilfs2: use div64_ul() instead of do_div() mul_u64_u64_div_u64: increase precision by conditionally swapping a and b kexec: copy only happens before uchunk goes to zero get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig get_signal: don't abuse ksig->info.si_signo and ksig->sig const_structs.checkpatch: add device_type Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>" dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace() list: leverage list_is_head() for list_entry_is_head() nilfs2: MAINTAINERS: drop unreachable project mirror site smp: make __smp_processor_id() 0-argument macro fat: fix uninitialized field in nostale filehandles ...
2024-03-14Merge tag 'backlight-next-6.9' of ↵Gravatar Linus Torvalds 15-156/+254
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "New Drivers: - Add support for Kinetic KTD2801 Backlight Fix-ups: - Fix include lists; alphabetise, remove unused, explicitly add used - Device Tree binding adaptions/conversions/creation - Use dev_err_probe() to clean-up error paths - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations Bug Fixes: - Fix changes of NULL pointer dereference - Remedy a bunch of logic errors - Initialise (zero) Backlight properties data structures" * tag 'backlight-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (32 commits) backlight: pandora_bl: Drop unneeded ENOMEM error message backlight: lm3630a_bl: Simplify probe return on gpio request error backlight: lm3630a_bl: Handle deferred probe backlight: as3711_bl: Handle deferred probe backlight: bd6107: Handle deferred probe backlight: l4f00242t03: Simplify with dev_err_probe() backlight: gpio: Simplify with dev_err_probe() backlight: lp8788: Fully initialize backlight_properties during probe backlight: lm3639: Fully initialize backlight_properties during probe backlight: da9052: Fully initialize backlight_properties during probe backlight: lm3630a: Use backlight_get_brightness helper in update_status backlight: lm3630a: Don't set bl->props.brightness in get_brightness backlight: lm3630a: Initialize backlight_properties on init backlight: mp3309c: Fully initialize backlight_properties during probe backlight: mp3309c: Utilise temporary variable for struct device backlight: mp3309c: Use dev_err_probe() instead of dev_err() backlight: mp3309c: Make use of device properties dt-bindings: backlight: qcom-wled: Fix bouncing email addresses backlight: hx8357: Utilise temporary variable for struct device backlight: hx8357: Make use of dev_err_probe() ...
2024-03-13Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernelGravatar Linus Torvalds 14-227/+422
Pull drm updates from Dave Airlie: "Highlights are usual, more AMD IP blocks for future hw, i915/xe changes, Displayport tunnelling support for i915, msm YUV over DP changes, new tests for ttm, but its mostly a lot of stuff all over the place from lots of people. core: - EDID cleanups - scheduler error handling fixes - managed: add drmm_release_action() with tests - add ratelimited drm debug print - DPCD PSR early transport macro - DP tunneling and bandwidth allocation helpers - remove built-in edids - dp: Avoid AUX transfers on powered-down displays - dp: Add VSC SDP helpers cross drivers: - use new drm print helpers - switch to ->read_edid callback - gem: add stats for shared buffers plus updates to amdgpu, i915, xe syncobj: - fixes to waiting and sleeping ttm: - add tests - fix errno codes - simply busy-placement handling - fix page decryption media: - tc358743: fix v4l device registration video: - move all kernel parameters for video behind CONFIG_VIDEO sound: - remove <drm/drm_edid.h> include from header ci: - add tests for msm - fix apq8016 runner efifb: - use copy of global screen_info state vesafb: - use copy of global screen_info state simplefb: - fix logging bridge: - ite-6505: fix DP link-training bug - samsung-dsim: fix error checking in probe - samsung-dsim: add bsh-smm-s2/pro boards - tc358767: fix regmap usage - imx: add i.MX8MP HDMI PVI plus DT bindings - imx: add i.MX8MP HDMI TX plus DT bindings - sii902x: fix probing and unregistration - tc358767: limit pixel PLL input range - switch to new drm_bridge_read_edid() interface panel: - ltk050h3146w: error-handling fixes - panel-edp: support delay between power-on and enable; use put_sync in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49 V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings - add BOE TH101MB31IG002-28A plus DT bindings - add EDT ETML1010G3DRA plus DT bindings - add Novatek NT36672E LCD DSI plus DT bindings - nt36523: support 120Hz timings, fix includes - simple: fix display timings on RK32FN48H - visionox-vtdr6130: fix initialization - add Powkiddy RGB10MAX3 plus DT bindings - st7703: support panel rotation plus DT bindings - add Himax HX83112A plus DT bindings - ltk500hd1829: add support for ltk101b4029w and admatec 9904370 - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs panel-orientation-quirks: - GPD Win Mini amdgpu: - Validate DMABuf imports in compute VMs - Add RAS ACA framework - PSP 13 fixes - Misc code cleanups - Replay fixes - Atom interpretor PS, WS bounds checking - DML2 fixes - Audio fixes - DCN 3.5 Z state fixes - Remove deprecated ida_simple usage - UBSAN fixes - RAS fixes - Enable seq64 infrastructure - DC color block enablement - Documentation updates - DC documentation updates - DMCUB updates - ATHUB 4.1 support - LSDMA 7.0 support - JPEG DPG support - IH 7.0 support - HDP 7.0 support - VCN 5.0 support - SMU 13.0.6 updates - NBIO 7.11 updates - SDMA 6.1 updates - MMHUB 3.3 updates - DCN 3.5.1 support - NBIF 6.3.1 support - VPE 6.1.1 support amdkfd: - Validate DMABuf imports in compute VMs - SVM fixes - Trap handler updates and enhancements - Fix cache size reporting - Relocate the trap handler radeon: - Atom interpretor PS, WS bounds checking - Misc code cleanups xe: - new query for GuC submission version - Remove unused persistent exec_queues - Add vram frequency sysfs attributes - Add the flag XE_VM_BIND_FLAG_DUMPABLE - Drop pre-production workarounds - Drop kunit tests for unsupported platforms - Start pumbling SR-IOV support with memory based interrupts for VF - Allow to map BO in GGTT with PAT index corresponding to XE_CACHE_UC to work with memory based interrupts - Add GuC Doorbells Manager as prep work SR-IOV - Implement additional workarounds for xe2 and MTL - Program a few registers according to perfomance guide spec for Xe2 - Fix remaining 32b build issues and enable it back - Fix build with CONFIG_DEBUG_FS=n - Fix warnings from GuC ABI headers - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF - Release mmap mappings on rpm suspend - Disable mid-thread preemption when not properly supported by hardware - Fix xe_exec by reserving extra fence slot for CPU bind - Fix xe_exec with full long running exec queue - Canonicalize addresses where needed for Xe2 and add to devcoredum - Toggle USM support for Xe2 - Only allow 1 ufence per exec / bind IOCTL - Add GuC firmware loading for Lunar Lake - Add XE_VMA_PTE_64K VMA flag i915: - Add more ADL-N PCI IDs - Enable fastboot also on older platforms - Early transport for panel replay and PSR - New ARL PCI IDs - DP TPS4 PHY test pattern support - Unify and improve VSC SDP for PSR and non-PSR cases - Refactor memory regions and improve debug logging - Rework global state serialization - Remove unused CDCLK divider fields - Unify HDCP connector logging format - Use display instead of graphics version in display code - Move VBT and opregion debugfs next to the implementation - Abstract opregion interface, use opaque type - MTL fixes - HPD handling fixes - Add GuC submission interface version query - Atomically invalidate userptr on mmu-notifier - Update handling of MMIO triggered reports - Don't make assumptions about intel_wakeref_t type - Extend driver code of Xe_LPG to Xe_LPG+ - Add flex arrays to struct i915_syncmap - Allow for very slow HuC loading - DP tunneling and bandwidth allocation support msm: - Correct bindings for MSM8976 and SM8650 platforms - Start migration of MDP5 platforms to DPU driver - X1E80100 MDSS support - DPU: - Improve DSC allocation, fixing several important corner cases - Add support for SDM630/SDM660 platforms - Simplify dpu_encoder_phys_ops - Apply fixes targeting DSC support with a single DSC encoder - Apply fixes for HCTL_EN timing configuration - X1E80100 support - Add support for YUV420 over DP - GPU: - fix sc7180 UBWC config - fix a7xx LLC config - new gpu support: a305B, a750, a702 - machine support: SM7150 (different power levels than other a618) - a7xx devcoredump support habanalabs: - configure IRQ affinity according to NUMA node - move HBM MMU page tables inside the HBM - improve device reset - check extended PCIe errors ivpu: - updates to firmware API - refactor BO allocation imx: - use devm_ functions during init hisilicon: - fix EDID includes mgag200: - improve ioremap usage - convert to struct drm_edid - Work around PCI write bursts nouveau: - disp: use kmemdup() - fix EDID includes - documentation fixes qaic: - fixes to BO handling - make use of DRM managed release - fix order of remove operations rockchip: - analogix_dp: get encoder port from DT - inno_hdmi: support HDMI for RK3128 - lvds: error-handling fixes ssd130x: - support SSD133x plus DT bindings tegra: - fix error handling tilcdc: - make use of DRM managed release v3d: - show memory stats in debugfs - Support display MMU page size vc4: - fix error handling in plane prepare_fb - fix framebuffer test in plane helpers virtio: - add venus capset defines vkms: - fix OOB access when programming the LUT - Kconfig improvements vmwgfx: - unmap surface before changing plane state - fix memory leak in error handling - documentation fixes - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid - fix null-pointer deref in execbuf - refactor display-mode probing - fix fencing for creating cursor MOBs - fix cursor-memory lifetime xlnx: - fix live video input for ZynqMP DPSUB lima: - fix memory leak loongson: - fail if no VRAM present meson: - switch to new drm_bridge_read_edid() interface renesas: - add RZ/G2L DU support plus DT bindings mxsfb: - Use managed mode config sun4i: - HDMI: updates to atomic mode setting mediatek: - Add display driver for MT8188 VDOSYS1 - DSI driver cleanups - Filter modes according to hardware capability - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip etnaviv: - enhancements for NPU and MRT support" * tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel: (1420 commits) drm/amd/display: Removed redundant @ symbol to fix kernel-doc warnings in -next repo drm/amd/pm: wait for completion of the EnableGfxImu message drm/amdgpu/soc21: add mode2 asic reset for SMU IP v14.0.1 drm/amdgpu: add smu 14.0.1 support drm/amdgpu: add VPE 6.1.1 discovery support drm/amdgpu/vpe: add VPE 6.1.1 support drm/amdgpu/vpe: don't emit cond exec command under collaborate mode drm/amdgpu/vpe: add collaborate mode support for VPE drm/amdgpu/vpe: add PRED_EXE and COLLAB_SYNC OPCODE drm/amdgpu/vpe: add multi instance VPE support drm/amdgpu/discovery: add nbif v6_3_1 ip block drm/amdgpu: Add nbif v6_3_1 ip block support drm/amdgpu: Add pcie v6_1_0 ip headers (v5) drm/amdgpu: Add nbif v6_3_1 ip headers (v5) arch/powerpc: Remove <linux/fb.h> from backlight code macintosh/via-pmu-backlight: Include <linux/backlight.h> fbdev/chipsfb: Include <linux/backlight.h> drm/etnaviv: Restore some id values drm/amdkfd: make kfd_class constant drm/amdgpu: add ring timeout information in devcoredump ...
2024-03-13Merge tag 'spi-v6.9' of ↵Gravatar Linus Torvalds 1-13/+13
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "This release sees some exciting changes from David Lechner which implements some optimisations that have been talked about for a long time which allows client drivers to pre-prepare SPI messages for repeated or low latency use. This lets us move work out of latency sensitive paths and avoid repeating work for frequently performed operations. As well as being useful in itself this will also be used in future to allow controllers to directly trigger SPI operations (eg, from interrupts). Otherwise this release has mostly been focused on cleanups, plus a couple of new devices: - Support for pre-optimising messages - A big set of updates from Uwe Kleine-König moving drivers to use APIs with more modern terminology for controllers - Major overhaul of the s3c64xx driver - Support for Google GS101 and Samsung Exynos850" * tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits) spi: Introduce SPI_INVALID_CS and is_valid_cs() spi: Fix types of the last chip select storage variables spi: Consistently use BIT for cs_index_mask spi: Exctract spi_dev_check_cs() helper spi: Exctract spi_set_all_cs_unused() helper spi: s3c64xx: switch exynos850 to new port config data spi: s3c64xx: switch gs101 to new port config data spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id spi: s3c64xx: get rid of the OF alias ID dependency spi: s3c64xx: introduce s3c64xx_spi_set_port_id() spi: s3c64xx: let the SPI core determine the bus number spi: s3c64xx: allow FIFO depth to be determined from the compatible spi: s3c64xx: retrieve the FIFO depth from the device tree spi: s3c64xx: determine the fifo depth only once spi: s3c64xx: allow full FIFO masks spi: s3c64xx: define a magic value spi: dt-bindings: introduce FIFO depth properties spi: axi-spi-engine: use struct_size() macro spi: axi-spi-engine: use __counted_by() attribute spi: axi-spi-engine: remove p from struct spi_engine_message_state ...
2024-03-07fbdev/chipsfb: Include <linux/backlight.h>Gravatar Thomas Zimmermann 1-0/+1
Fix builds with CONFIG_PMAC_BACKLIGHT=y. The include statement for the backlight header has recently been removed from <linux/fb.h>. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Closes: https://lore.kernel.org/dri-devel/CA+G9fYsAk5TbqqxFC2W4oHLGA0CbTHMxbeq8QayFXTU75YiueA@mail.gmail.com/ Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 11b4eedfc87d ("fbdev: Do not include <linux/backlight.h> in header") Reviewed-by: Jani Nikula <jani.nikula@intel.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20240306122935.10626-2-tzimmermann@suse.de
2024-03-07backlight: pandora_bl: Drop unneeded ENOMEM error messageGravatar Krzysztof Kozlowski 1-3/+1
Core code already prints detailed information about failure of memory allocation. Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-7-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3630a_bl: Simplify probe return on gpio request errorGravatar Krzysztof Kozlowski 1-4/+2
Code can be simpler: return directly when devm_gpiod_get_optional() failed. Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-6-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3630a_bl: Handle deferred probeGravatar Krzysztof Kozlowski 1-4/+3
Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-5-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: as3711_bl: Handle deferred probeGravatar Krzysztof Kozlowski 1-4/+2
Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-4-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: bd6107: Handle deferred probeGravatar Krzysztof Kozlowski 1-6/+3
Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-3-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: l4f00242t03: Simplify with dev_err_probe()Gravatar Krzysztof Kozlowski 1-20/+14
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-2-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: gpio: Simplify with dev_err_probe()Gravatar Krzysztof Kozlowski 1-7/+3
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-1-609b0cf24bde@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lp8788: Fully initialize backlight_properties during probeGravatar Daniel Thompson 1-0/+1
props is stack allocated and the fields that are not explcitly set by the probe function need to be zeroed or we'll get undefined behaviour (especially so power/blank states)! Fixes: c5a51053cf3b ("backlight: add new lp8788 backlight driver") Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220153532.76613-4-daniel.thompson@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3639: Fully initialize backlight_properties during probeGravatar Daniel Thompson 1-0/+1
props is stack allocated and the fields that are not explcitly set by the probe function need to be zeroed or we'll get undefined behaviour (especially so power/blank states)! Fixes: 0f59858d5119 ("backlight: add new lm3639 backlight driver") Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220153532.76613-3-daniel.thompson@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: da9052: Fully initialize backlight_properties during probeGravatar Daniel Thompson 1-0/+1
props is stack allocated and the fields that are not explcitly set by the probe function need to be zeroed or we'll get undefined behaviour (especially so power/blank states)! Fixes: 6ede3d832aaa ("backlight: add driver for DA9052/53 PMIC v1") Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220153532.76613-2-daniel.thompson@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3630a: Use backlight_get_brightness helper in update_statusGravatar Luca Weiss 1-6/+8
As per documentation "drivers are expected to use this function in their update_status() operation to get the brightness value.". With this we can also drop the manual backlight_is_blank() handling since backlight_get_brightness() is already handling this correctly. Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-3-9ca62f7e4a33@z3ntu.xyz Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3630a: Don't set bl->props.brightness in get_brightnessGravatar Luca Weiss 1-10/+4
There's no need to set bl->props.brightness, the get_brightness function is just supposed to return the current brightness and not touch the struct. With that done we can also remove the 'goto out' and just return the value. Fixes: 0c2a665a648e ("backlight: add Backlight driver for lm3630 chip") Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-2-9ca62f7e4a33@z3ntu.xyz Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: lm3630a: Initialize backlight_properties on initGravatar Luca Weiss 1-0/+1
The backlight_properties struct should be initialized to zero before using, otherwise there will be some random values in the struct. Fixes: 0c2a665a648e ("backlight: add Backlight driver for lm3630 chip") Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-1-9ca62f7e4a33@z3ntu.xyz Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: mp3309c: Fully initialize backlight_properties during probeGravatar Daniel Thompson 1-0/+1
props is stack allocated and, although this driver initializes all the fields that are not "owned" by the framework, we'd still like to ensure it is zeroed to avoid problems from this driver if the fields change. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240220153532.76613-5-daniel.thompson@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: mp3309c: Utilise temporary variable for struct deviceGravatar Andy Shevchenko 1-18/+12
We have a temporary variable to keep pointer to struct device. Utilise it where it makes sense. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Tested-by: Flavio Suligoi <f.suligoi@asem.it> Link: https://lore.kernel.org/r/20240208184313.2224579-4-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: mp3309c: Use dev_err_probe() instead of dev_err()Gravatar Andy Shevchenko 1-11/+7
Replace dev_err() with dev_err_probe(). This helps in simplifing code and standardizing the error output. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Flavio Suligoi <f.suligoi@asem.it> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240208184313.2224579-3-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: mp3309c: Make use of device propertiesGravatar Andy Shevchenko 1-26/+18
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Add mod_devicetable.h include. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Flavio Suligoi <f.suligoi@asem.it> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240208184313.2224579-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: hx8357: Utilise temporary variable for struct deviceGravatar Andy Shevchenko 1-4/+3
We have a temporary variable to keep pointer to struct device. Utilise it inside the ->probe() implementation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20240201144951.294215-5-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: hx8357: Make use of dev_err_probe()Gravatar Andy Shevchenko 1-8/+4
Simplify the error handling in probe function by switching from dev_err() to dev_err_probe(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20240201144951.294215-4-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: hx8357: Move OF table closer to its consumerGravatar Andy Shevchenko 1-13/+13
Move OF table near to the user. While at it, drop comma at terminator entry. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20240201144951.294215-3-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: hx8357: Make use of device propertiesGravatar Andy Shevchenko 1-6/+8
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Include mod_devicetable.h explicitly to replace the dropped of.h which included mod_devicetable.h indirectly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240201144951.294215-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: mp3309c: Use pwm_apply_might_sleep()Gravatar Sean Young 1-2/+2
pwm_apply_state() is deprecated since commit c748a6d77c06a ("pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()"). This is the final user in the tree. Signed-off-by: Sean Young <sean@mess.org> Tested-by: Flavio Suligoi <f.suligoi@asem.it> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240128154905.407302-1-sean@mess.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: ktz8866: Correct the check for of_property_read_u32Gravatar Jianhua Lu 1-3/+3
of_property_read_u32 returns 0 when success, so reverse the return value to get the true value. Fixes: f8449c8f7355 ("backlight: ktz8866: Add support for Kinetic KTZ8866 backlight") Signed-off-by: Jianhua Lu <lujianhua000@gmail.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240129122829.16248-1-lujianhua000@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: hx8357: Fix potential NULL pointer dereferenceGravatar Andy Shevchenko 1-4/+6
The "im" pins are optional. Add missing check in the hx8357_probe(). Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/642e1230-3358-4006-a17f-3f297897ae74@moroto.mountain Fixes: 7d84a63a39b7 ("backlight: hx8357: Convert to agnostic GPIO API") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240114143921.550736-1-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: ktd2801: Make timing struct staticGravatar Duje Mihanović 1-1/+1
The struct containing the KTD2801 timing can be made static as it's not referenced outside the KTD2801 driver. Do this to prevent sparse complaints. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202402100625.M0RkJhMh-lkp@intel.com/ Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240210-ktd2801-static-v1-1-90ad2e2e8483@skole.hr Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07backlight: Add Kinetic KTD2801 Backlight supportGravatar Duje Mihanović 3-0/+136
KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte. The brightness can be set using PWM or the ExpressWire protocol. Add support for the KTD2801. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Link: https://lore.kernel.org/r/20240125-ktd2801-v5-4-e22da232a825@skole.hr Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-06Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"Gravatar Ahelenia Ziemiańska 1-1/+1
Found with git grep 'MODULE_AUTHOR(".*([^)]*@' Fixed with sed -i '/MODULE_AUTHOR(".*([^)]*@/{s/ (/ </g;s/)"/>"/;s/)and/> and/}' \ $(git grep -l 'MODULE_AUTHOR(".*([^)]*@') Also: in drivers/media/usb/siano/smsusb.c normalise ", INC" to ", Inc"; this is what every other MODULE_AUTHOR for this company says, and it's what the header says in drivers/sbus/char/openprom.c normalise a double-spaced separator; this is clearly copied from the copyright header, where the names are aligned on consecutive lines thusly: * Linux/SPARC PROM Configuration Driver * Copyright (C) 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu) * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) but the authorship branding is single-line Link: https://lkml.kernel.org/r/mk3geln4azm5binjjlfsgjepow4o73domjv6ajybws3tz22vb3@tarta.nabijaczleweli.xyz Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-03-05Merge tag 'hyperv-fixes-signed-20240303' of ↵Gravatar Linus Torvalds 1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: - Multiple fixes, cleanups and documentations for Hyper-V core code and drivers * tag 'hyperv-fixes-signed-20240303' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: Drivers: hv: vmbus: make hv_bus const x86/hyperv: Allow 15-bit APIC IDs for VTL platforms x86/hyperv: Make encrypted/decrypted changes safe for load_unaligned_zeropad() x86/mm: Regularize set_memory_p() parameters and make non-static x86/hyperv: Use slow_virt_to_phys() in page transition hypervisor callback Documentation: hyperv: Add overview of PCI pass-thru device support Drivers: hv: vmbus: Update indentation in create_gpadl_header() Drivers: hv: vmbus: Remove duplication and cleanup code in create_gpadl_header() fbdev/hyperv_fb: Fix logic error for Gen2 VMs in hvfb_getmem() Drivers: hv: vmbus: Calculate ring buffer size for more efficient use of memory hv_utils: Allow implicit ICTIMESYNCFLAG_SYNC
2024-03-01fbdev/hyperv_fb: Fix logic error for Gen2 VMs in hvfb_getmem()Gravatar Michael Kelley 1-2/+0
A recent commit removing the use of screen_info introduced a logic error. The error causes hvfb_getmem() to always return -ENOMEM for Generation 2 VMs. As a result, the Hyper-V frame buffer device fails to initialize. The error was introduced by removing an "else if" clause, leaving Gen2 VMs to always take the -ENOMEM error path. Fix the problem by removing the error path "else" clause. Gen 2 VMs now always proceed through the MMIO memory allocation code, but with "base" and "size" defaulting to 0. Fixes: 0aa0838c84da ("fbdev/hyperv_fb: Remove firmware framebuffers with aperture helpers") Signed-off-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Link: https://lore.kernel.org/r/20240201060022.233666-1-mhklinux@outlook.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20240201060022.233666-1-mhklinux@outlook.com>
2024-02-28backlight/corgi-lcd: Include <linux/backlight.h>Gravatar Thomas Zimmermann 1-0/+1
Resolves the proxy include via <linux/fb.h>, which does not require the backlight header. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Lee Jones <lee@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-2-tzimmermann@suse.de
2024-02-26fbcon: always restore the old font data in fbcon_do_set_font()Gravatar Jiri Slaby (SUSE) 1-5/+3
Commit a5a923038d70 (fbdev: fbcon: Properly revert changes when vc_resize() failed) started restoring old font data upon failure (of vc_resize()). But it performs so only for user fonts. It means that the "system"/internal fonts are not restored at all. So in result, the very first call to fbcon_do_set_font() performs no restore at all upon failing vc_resize(). This can be reproduced by Syzkaller to crash the system on the next invocation of font_get(). It's rather hard to hit the allocation failure in vc_resize() on the first font_set(), but not impossible. Esp. if fault injection is used to aid the execution/failure. It was demonstrated by Sirius: BUG: unable to handle page fault for address: fffffffffffffff8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD cb7b067 P4D cb7b067 PUD cb7d067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8007 Comm: poc Not tainted 6.7.0-g9d1694dc91ce #20 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:fbcon_get_font+0x229/0x800 drivers/video/fbdev/core/fbcon.c:2286 Call Trace: <TASK> con_font_get drivers/tty/vt/vt.c:4558 [inline] con_font_op+0x1fc/0xf20 drivers/tty/vt/vt.c:4673 vt_k_ioctl drivers/tty/vt/vt_ioctl.c:474 [inline] vt_ioctl+0x632/0x2ec0 drivers/tty/vt/vt_ioctl.c:752 tty_ioctl+0x6f8/0x1570 drivers/tty/tty_io.c:2803 vfs_ioctl fs/ioctl.c:51 [inline] ... So restore the font data in any case, not only for user fonts. Note the later 'if' is now protected by 'old_userfont' and not 'old_data' as the latter is always set now. (And it is supposed to be non-NULL. Otherwise we would see the bug above again.) Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Fixes: a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") Reported-and-tested-by: Ubisectech Sirius <bugreport@ubisectech.com> Cc: Ubisectech Sirius <bugreport@ubisectech.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20240208114411.14604-1-jirislaby@kernel.org
2024-02-14fbdev/efifb: Remove framebuffer relocation trackingGravatar Thomas Zimmermann 1-75/+1
If the firmware framebuffer has been reloacted, the sysfb code fixes the screen_info state before it creates the framebuffer's platform device. Efifb will automatically receive a screen_info with updated values. Hence remove the tracking from efifb. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-9-tzimmermann@suse.de
2024-02-14firmware/sysfb: Update screen_info for relocated EFI framebuffersGravatar Thomas Zimmermann 1-0/+88
On ARM PCI systems, the PCI hierarchy might be reconfigured during boot and the firmware framebuffer might move as a result of that. The values in screen_info will then be invalid. Work around this problem by tracking the framebuffer's initial location before it get relocated; then fix the screen_info state between reloaction and creating the firmware framebuffer's device. This functionality has been lifted from efifb. See the commit message of commit 55d728a40d36 ("efi/fb: Avoid reconfiguration of BAR that covers the framebuffer") for more information. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-8-tzimmermann@suse.de
2024-02-14fbdev/efifb: Do not track parent device statusGravatar Thomas Zimmermann 1-4/+1
There will be no EFI framebuffer device for disabled parent devices and thus we never probe efifb in that case. Hence remove the tracking code from efifb. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-7-tzimmermann@suse.de
2024-02-14fbdev/efifb: Remove PM for parent deviceGravatar Thomas Zimmermann 1-13/+3
The EFI device has the correct parent device set. This allows Linux to handle the power management internally. Hence, remove the manual PM management for the parent device from efifb. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-5-tzimmermann@suse.de
2024-02-14video: Provide screen_info_get_pci_dev() to find screen_info's PCI deviceGravatar Thomas Zimmermann 2-0/+49
Add screen_info_get_pci_dev() to find the PCI device of an instance of screen_info. Does nothing on systems without PCI bus. v3: * search PCI device with pci_get_base_class() (Sui) v2: * remove ret from screen_info_pci_dev() (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-3-tzimmermann@suse.de
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