- 03 May, 2022 17 commits
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Thomas Zimmermann authored
Use pageref->offset instead of page->index for deferred-I/O writeback where appropriate. Distinguishes between file-mapping offset and video- memory offset. While at it, also remove unnecessary references to struct page. Fbdev's deferred-I/O code uses the two related page->index and pageref->offset. The former is the page offset in the mapped file, the latter is the byte offset in the video memory (or fbdev screen buffer). It's the same value for fbdev drivers, but for DRM the values can be different. Because GEM buffer objects are mapped at an offset in the DRM device file, page->index has this offset added to it as well. We currently don't hit this case in DRM, because all affected mappings of GEM memory are performed with an internal, intermediate shadow buffer. The value of page->index is required by page_mkclean(), which we call to reset the mappings during the writeback phase of the deferred I/O. The value of pageref->offset is for conveniently getting an offset into video memory in fb helpers. v4: * fix commit message (Javier) Suggested-by:
Javier Martinez Canillas <javierm@redhat.com> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
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Thomas Zimmermann authored
Rename various instances of pagelist to pagereflist. The list now stores pageref structures, so the new name is more appropriate. In their write-back helpers, several fbdev drivers refer to the pageref list in struct fb_deferred_io instead of using the one supplied as argument to the function. Convert them over to the supplied one. It's the same instance, so no change of behavior occurs. v4: * fix commit message (Javier) Suggested-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Thomas Zimmermann authored
Refactor the page-write handler for deferred I/O. Drivers use the function to let fbdev track written pages of mmap'ed framebuffer memory. v3: * keep locking within track-pages function for readability (Sam) v2: * don't export the helper until we have an external caller Signed-off-by:
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Thomas Zimmermann authored
Store the per-page state for fbdev's deferred I/O in struct fb_deferred_io_pageref. Maintain a list of pagerefs for the pages that have to be written back to video memory. Update all affected drivers. As with pages before, fbdev acquires a pageref when an mmaped page of the framebuffer is being written to. It holds the pageref in a list of all currently written pagerefs until it flushes the written pages to video memory. Writeback occurs periodically. After writeback fbdev releases all pagerefs and builds up a new dirty list until the next writeback occurs. Using pagerefs has a number of benefits. For pages of the framebuffer, the deferred I/O code used struct page.lru as an entry into the list of dirty pages. The lru field is owned by the page cache, which makes deferred I/O incompatible with some memory pages (e.g., most notably DRM's GEM SHMEM allocator). struct fb_deferred_io_pageref now provides an entry into a list of dirty framebuffer pages, freeing lru for use with the page cache. Drivers also assumed that struct page.index is the page offset into the framebuffer. This is not true for DRM buffers, which are located at various offset within a mapped area. struct fb_deferred_io_pageref explicitly stores an offset into the framebuffer. struct page.index is now only the page offset into the mapped area. These changes will allow DRM to use fbdev deferred I/O without an intermediate shadow buffer. v3: * use pageref->offset for sorting * fix grammar in comment v2: * minor fixes in commit message Signed-off-by:
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Thomas Zimmermann authored
The fbdev mmap function fb_mmap() unconditionally overrides the driver's implementation if deferred I/O has been activated. This makes it hard to implement mmap with anything but a vmalloc()'ed software buffer. That is specifically a problem for DRM, where video memory is maintained by a memory manager. Leave the mmap handling to drivers and expect them to call the helper for deferred I/O by thmeselves. v4: * unlock mm_lock in fb_mmap() error path (Dan) v3: * fix warning if fb_mmap is missing (kernel test robot) v2: * print a helpful error message if the defio setup is incorrect (Javier) Signed-off-by:
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KuoHsiang Chou authored
V1: 1. The MCU FW controling ASPEED DP is loaded by BMC boot loader. 2. Driver starts after CR[3:1] == 111b that indicates Tx is ASTDP, and CRD1[5] has been asserted by BMVC boot loader. 3. EDID is prioritized by DP monitor. 4. DP's EDID has high priority to decide resolution supporting. V2: Modules description: 1. ASTDP (ASPEED DisplayPort) is controlled by dedicated AST-MCU (ASPEED propriatary MCU). 2. MCU is looping in charged of HPD, Read EDID, Link Training with DP sink. 3. ASTDP and AST-MUC reside in BMC (Baseboard Management controller) addressing-space. 4. ASPEED DRM driver requests MCU to get HPD and EDID by CR-scratched register. Booting sequence: 1. Check if TX is ASTDP // ast_dp_launch() 2. Check if DP-MCU FW has loaded // ast_dp_launch() 3. Read EDID // ast_dp_read_edid() 4. Resolution switch // ast_dp_SetOutput() V3: 1. Remove unneeded semicolon. 2. Apply to git://anongit.freedesktop.org/drm/drm, instead of git://anongit.freedesktop.org/drm/drm-misc 3. Resolve auto build test WARNINGs on V1 patch. V4: 1. Sync code-base with kernel 5.17_rc6 2. Remove the define of DPControlPower, because DP chips need to be powered on to be used. 3. Remove the switches of PHY and Display from EDID procedure. 4. Revise increaing delay to fixed delay, because this version kernel doesn't detect minitor consistenntly. 5. Create clean-up code used for reset of power state on errors with -EIO manner. 6. Revise the DP detection by TX type and its DP-FW status during booting and resume. 7. Correct the CamelCase Style. 8. Use register reading while needing, and remove to hold full register. 9. Instead of 'u8', revise to 'bool' on swwitch of PHY and video. 10.Correct typo 11.Remove the duplicated copy of TX definition. 12.Use EDID_LENGTH as the constant of 128. Signed-off-by:
KuoHsiang Chou <kuohsiang_chou@aspeedtech.com> Reviewed-by:
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Sascha Hauer authored
None of the upstream device tree files has a "unwedge" pinctrl specified. Make it optional. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Acked-by:
Rob Herring <robh@kernel.org> Tested-by:
Michael Riesch <michael.riesch@wolfvision.net> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220422072841.2206452-16-s.hauer@pengutronix.de
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Sascha Hauer authored
The RK3568 has HDMI_TX_AVDD0V9 and HDMI_TX_AVDD_1V8 supply inputs needed for the HDMI port. add support for these to the driver for boards which have them supplied by switchable regulators. Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Tested-by:
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Sascha Hauer authored
The RK3568 has HDMI_TX_AVDD0V9 and HDMI_TX_AVDD_1V8 supply inputs needed for the HDMI port. Add the binding for these supplies. Signed-off-by:
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Sascha Hauer authored
Add a new dw_hdmi_plat_data struct and new compatible for rk3568. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@collabora.com> Signed-off-by:
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Benjamin Gaignard authored
Define a new compatible for rk3568 HDMI. This version of HDMI hardware block needs two new clocks hclk_vio and hclk to provide phy reference clocks. Signed-off-by:
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Maxime Ripard authored
Christian needs a backmerge to avoid a merge conflict for amdgpu. Signed-off-by:Maxime Ripard <maxime@cerno.tech>
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Sascha Hauer authored
"vpll" is a misnomer. A clock input to a device should be named after the usage in the device, not after the clock that drives it. On the rk3568 the same clock is driven by the HPLL. This patch adds "ref" as a new alternative clock name for "vpll" Signed-off-by:
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Sascha Hauer authored
"vpll" is a misnomer. A clock input to a device should be named after the usage in the device, not after the clock that drives it. On the rk3568 the same clock is driven by the HPLL. To fix that, this patch renames the vpll clock to ref clock. The clock name "vpll" is left for compatibility to old device trees. Signed-off-by:
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Sascha Hauer authored
The VOP2 has an interface mux which decides to which encoder(s) a CRTC is routed to. The encoders and CRTCs are connected via of_graphs in the device tree. When given an encoder the VOP2 driver needs to know to which internal register setting this encoder matches. For this the VOP2 binding offers different endpoints, one for each possible encoder. The endpoint ids of these endpoints are used as a key from an encoders device tree description to the internal register setting. This patch adds the key aka endpoint id to struct rockchip_encoder plus a function to read the endpoint id starting from the encoders device node. Signed-off-by:
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Sascha Hauer authored
The VOP2 driver needs rockchip specific information for a drm_encoder. This patch creates a struct rockchip_encoder with a struct drm_encoder embedded in it. This is used throughout the rockchip driver instead of struct drm_encoder directly. The information the VOP2 drivers needs is the of_graph endpoint node of the encoder. To ease bisectability this is added here. While at it convert the different encoder-to-driverdata macros to static inline functions in order to gain type safety and readability. Signed-off-by:
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Dave Airlie authored
Backmerge tag 'v5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Linux 5.18-rc5 There was a build fix for arm I wanted in drm-next, so backmerge rather then cherry-pick. Signed-off-by:
Dave Airlie <airlied@redhat.com>
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- 02 May, 2022 15 commits
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Chen-Yu Tsai authored
The VOP in Rockchip SoCs that support YUV planes also support swapping of the U and V elements. Supporting the swapped variants, especially NV21, would be beneficial for multimedia applications, as the hardware video decoders only output NV21, and supporting this pixel format in the display pipeline would allow the decoded video frames to be output directly. Add support for this to support the various formats that have U/V swapped. Signed-off-by:
Chen-Yu Tsai <wenst@chromium.org> Signed-off-by:
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José Expósito authored
Once EDID is parsed, the monitor HDMI support information is available through drm_display_info.is_hdmi. This driver calls drm_detect_hdmi_monitor() to receive the same information and stores its own cached value, which is less efficient. Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi instead and also remove hdmi_data_info.sink_is_hdmi as it is no longer necessary. Signed-off-by:
José Expósito <jose.exposito89@gmail.com> Signed-off-by:
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José Expósito authored
Once EDID is parsed, the monitor HDMI support information is available through drm_display_info.is_hdmi. This driver calls drm_detect_hdmi_monitor() to receive the same information and stores its own cached value, which is less efficient. Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi instead and also remove hdmi_data_info.sink_is_hdmi as it is no longer necessary. Signed-off-by:
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Tom Rix authored
Smatch reports this issue cdn-dp-core.c:51:20: warning: symbol 'rk3399_cdn_dp' was not declared. Should it be static? rk3399_cdn_dp is only used in cdn-dp-core.c so change its storge-class specifier to static. Signed-off-by:
Tom Rix <trix@redhat.com> Signed-off-by:
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Robin Murphy authored
Defer the IOMMU domain setup until after successfully binding components, so we can figure out IOMMU support directly from the VOP devices themselves, rather than manually inferring it from the DT (which also fails to account for whether the IOMMU driver is actually loaded). Although this is somewhat of a logical cleanup, the main motivation is to prepare for a change in the iommu_domain_alloc() interface. Signed-off-by:
Robin Murphy <robin.murphy@arm.com> Signed-off-by:
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Yang Yingliang authored
It will cause null-ptr-deref in resource_size(), if platform_get_resource() returns NULL, move calling resource_size() after devm_ioremap_resource() that will check 'res' to avoid null-ptr-deref. Fixes: 2048e328 ("drm: rockchip: Add basic drm driver") Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Signed-off-by:
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Uwe Kleine-König authored
tfp410_fini() always returns zero. Make it return no value which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and platform driver remove callbacks is ignored anyway. This prepares making i2c and platform remove callbacks return void, too. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220428162803.185275-1-u.kleine-koenig@pengutronix.de
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Marek Vasut authored
The i.MX8MP contains two syscon registers which are responsible for configuring the on-SoC DPI-to-LVDS serializer. Implement a simple bridge driver for this serializer. -- - Add sentinel of_device_table - Add RB from Sam - Rename to fsl-ldb altogether Reviewed-by:Marek Vasut <marex@denx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Peng Fan <peng.fan@nxp.com> Cc: Robby Cai <robby.cai@nxp.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> To: dri-devel@lists.freedesktop.org V2: - Rename syscon to fsl,syscon V3: - Consistently use MX8MP V4: - Fix MODULE_DESCRIPTION to also use MX8MP Signed-off-by:
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Marek Vasut authored
The i.MX8MP contains two syscon registers which are responsible for configuring the on-SoC DPI-to-LVDS serializer. Add DT binding which represents this serializer as a bridge. Acked-by:
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Alvin Šipraga authored
The ADV7511 family of bridges supports two modes for CEC RX: legacy and non-legacy mode. The only difference is whether the chip uses a single CEC RX buffer, or uses all three available RX buffers. Currently the adv7511 driver uses legacy mode. While debugging a stall in CEC RX on an ADV7535, we reached out to Analog Devices, who suggested to use non-legacy mode instead. According to the programming guide for the ADV7511 [1], and the register control manual of the ADV7535 [2], this is the default behaviour on reset. As previously stated, the adv7511 driver currently overrides this to legacy mode. This patch updates the adv7511 driver to instead use non-legacy mode with all three CEC RX buffers. As a result of this change, we no longer experience any stalling of CEC RX with the ADV7535. It is not known why non-legacy mode solves this particular issue, but besides this, no functional change is to be expected by this patch. Please note that this has only been tested on an ADV7535. What follows is a brief description of the non-legacy mode interrupt handling behaviour. The programming guide in [1] gives a more detailed explanation. With three RX buffers, the interrupt handler checks the CEC_RX_STATUS register (renamed from CEC_RX_ENABLE in this patch), which contains 2-bit psuedo-timestamps for each of the RX buffers. The RX timestamps for each buffer represent the time of arrival for the CEC frame held in a given buffer, with lower timestamp values indicating chronologically older frames. A special value of 0 indicates that the given RX buffer is inactive and should be skipped. The interrupt handler parses these timestamps and then reads the active RX buffers in the prescribed order using the same logic as before. Changes have been made to ensure that the correct RX buffer is cleared after processing. This clearing procesure also sets the timestamp of the given RX buffer to 0 to mark it as inactive. [1] https://www.analog.com/media/en/technical-documentation/user-guides/ADV7511_Programming_Guide.pdf cf. CEC Map, register 0x4A, bit 3, default value 1: 0 = Use only buffer 0 to store CEC frames (Legacy mode) 1 = Use all 3 buffers to stores the CEC frames (Non-legacy mode) [2] The ADV7535 register control manual is under NDA, but trust me when I say that non-legacy CEC RX mode is the default here too. Here the register is offset by 0x70 and has an address of 0xBA in the DSI_CEC regiser map. Signed-off-by:
Alvin Šipraga <alsi@bang-olufsen.dk> Reviewed-by:
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Alvin Šipraga authored
Like the ADV7533, the ADV7535 has an offset for the CEC register map, and it is the same value (ADV7533_REG_CEC_OFFSET = 0x70). Rather than testing for numerous chip types in the offset calculations throughout the driver, just compute it during driver probe and put it in the private adv7511 data structure. Signed-off-by:
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Pin-Yen Lin authored
Send DPCD SET_POWER command to downstream in .atomic_disable to make the downstream monitor enter the power down mode, so the device suspend won't be affected. Fixes: b5c84a9e ("drm/bridge: add it6505 driver") Signed-off-by:
Pin-Yen Lin <treapking@chromium.org> Signed-off-by:
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Jagan Teki authored
AM-1280800N3TZQW-T00H panel support 8 bpc not 6 bpc as per recent testing in i.MX8MM platform. Fix it. Fixes: bca684e6 ("drm/panel: simple: Add AM-1280800N3TZQW-T00H") Signed-off-by:
Jagan Teki <jagan@amarulasolutions.com> Reviewed-by:
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Christian König authored
Instead of manually adjusting the plane state. Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429134230.24334-3-christian.koenig@amd.com
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Christian König authored
drm_gem_plane_helper_prepare_fb() was using drm_atomic_set_fence_for_plane() which ignores all implicit fences when an explicit fence is already set. That's rather unfortunate when the fb still has a kernel fence we need to wait for to avoid presenting garbage on the screen. So instead update the fence in the plane state directly. While at it also take care of all potential GEM objects and not just the first one. Also remove the now unused drm_atomic_set_fence_for_plane() function, new drivers should probably use the atomic helpers directly. v2: improve kerneldoc, use local variable and num_planes, WARN_ON_ONCE on missing planes. Signed-off-by:
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- 01 May, 2022 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fixes from Paolo Bonzini: "ARM: - Take care of faults occuring between the PARange and IPA range by injecting an exception - Fix S2 faults taken from a host EL0 in protected mode - Work around Oops caused by a PMU access from a 32bit guest when PMU has been created. This is a temporary bodge until we fix it for good. x86: - Fix potential races when walking host page table - Fix shadow page table leak when KVM runs nested - Work around bug in userspace when KVM synthesizes leaf 0x80000021 on older (pre-EPYC) or Intel processors Generic (but affects only RISC-V): - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: work around QEMU issue with synthetic CPUID leaves Revert "x86/mm: Introduce lookup_address_in_mm()" KVM: x86/mmu: fix potential races when walking host page table KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR KVM: arm64: Inject exception on out-of-IPA-range translation fault KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set KVM: arm64: Handle host stage-2 faults from 32-bit EL0 -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: - A fix to disable PCI/MSI[-X] masking for XEN_HVM guests as that is solely controlled by the hypervisor - A build fix to make the function prototype (__warn()) as visible as the definition itself - A bunch of objtool annotation fixes which have accumulated over time - An ORC unwinder fix to handle bad input gracefully - Well, we thought the microcode gets loaded in time in order to restore the microcode-emulated MSRs but we thought wrong. So there's a fix for that to have the ordering done properly - Add new Intel model numbers - A spelling fix * tag 'x86_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests bug: Have __warn() prototype defined unconditionally x86/Kconfig: fix the spelling of 'becoming' in X86_KERNEL_IBT config objtool: Use offstr() to print address of missing ENDBR objtool: Print data address for "!ENDBR" data warnings x86/xen: Add ANNOTATE_NOENDBR to startup_xen() x86/uaccess: Add ENDBR to __put_user_nocheck*() x86/retpoline: Add ANNOTATE_NOENDBR for retpolines x86/static_call: Add ANNOTATE_NOENDBR to static call trampoline objtool: Enable unreachable warnings for CLANG LTO x86,objtool: Explicitly mark idtentry_body()s tail REACHABLE x86,objtool: Mark cpu_startup_entry() __noreturn x86,xen,objtool: Add UNWIND hint lib/strn*,objtool: Enforce user_access_begin() rules MAINTAINERS: Add x86 unwinding entry x86/unwind/orc: Recheck address range after stack info was updated x86/cpu: Load microcode during restore_processor_state() x86/cpu: Add new Alderlake and Raptorlake CPU model numbers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull objtool fixes from Borislav Petkov: "A bunch of objtool fixes to improve unwinding, sibling call detection, fallthrough detection and relocation handling of weak symbols when the toolchain strips section symbols" * tag 'objtool_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix code relocs vs weak symbols objtool: Fix type of reloc::addend objtool: Fix function fallthrough detection for vmlinux objtool: Fix sibling call detection in alternatives objtool: Don't set 'jump_dest' for sibling calls x86/uaccess: Don't jump between functions
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fix from Borislav Petkov: - Fix locking when accessing device MSI descriptors * tag 'irq_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: bus: fsl-mc-msi: Fix MSI descriptor mutex lock for msi_first_desc()
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- 30 Apr, 2022 3 commits
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Linus Torvalds authored
Merge tag 'driver-core-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are some small driver core and kernfs fixes for some reported problems. They include: - kernfs regression that is causing oopses in 5.17 and newer releases - topology sysfs fixes for a few small reported problems. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: kernfs: fix NULL dereferencing in kernfs_remove topology: Fix up build warning in topology_is_visible() arch_topology: Do not set llc_sibling if llc_id is invalid topology: make core_mask include at least cluster_siblings topology/sysfs: Hide PPIN on systems that do not support it.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are a small number of char/misc/other driver fixes for 5.18-rc5 Nothing major in here, this is mostly IIO driver fixes along with some other small things: - at25 driver fix for systems without a dma-able stack - phy driver fixes for reported issues - binder driver fixes for reported issues All of these have been in linux-next without any reported problems" * tag 'char-misc-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (31 commits) eeprom: at25: Use DMA safe buffers binder: Gracefully handle BINDER_TYPE_FDA objects with num_fds=0 binder: Address corner cases in deferred copy and fixup phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe() iio: imu: inv_icm42600: Fix I2C init possible nack iio: dac: ltc2688: fix voltage scale read interconnect: qcom: sdx55: Drop IP0 interconnects interconnect: qcom: sc7180: Drop IP0 interconnects phy: ti: Add missing pm_runtime_disable() in serdes_am654_probe phy: mapphone-mdm6600: Fix PM error handling in phy_mdm6600_probe phy: ti: omap-usb2: Fix error handling in omap_usb2_enable_clocks bus: mhi: host: pci_generic: Flush recovery worker during freeze bus: mhi: host: pci_generic: Add missing poweroff() PM callback phy: ti: tusb1210: Fix an error handling path in tusb1210_probe() phy: samsung: exynos5250-sata: fix missing device put in probe error paths phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe phy: ti: Fix missing of_node_put in ti_pipe3_get_sysctrl() phy: ti: tusb1210: Make tusb1210_chg_det_states static iio:dac:ad3552r: Fix an IS_ERR() vs NULL check iio: sx9324: Fix default precharge internal resistance register ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial fixes from Greg KH: "Here are some small serial driver fixes, and a larger number of GSM line discipline fixes for 5.18-rc5. These include: - lots of tiny n_gsm fixes for issues to resolve a number of reported problems. Seems that people are starting to actually use this code again. - 8250 driver fixes for some devices - imx serial driver fix - amba-pl011 driver fix All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (27 commits) tty: n_gsm: fix sometimes uninitialized warning in gsm_dlci_modem_output() serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device serial: 8250: Also set sticky MCR bits in console restoration tty: n_gsm: fix software flow control handling tty: n_gsm: fix invalid use of MSC in advanced option tty: n_gsm: fix broken virtual tty handling Revert "serial: sc16is7xx: Clear RS485 bits in the shutdown" tty: n_gsm: fix missing update of modem controls after DLCI open serial: 8250: Fix runtime PM for start_tx() for empty buffer serial: imx: fix overrun interrupts in DMA mode serial: amba-pl011: do not time out prematurely when draining tx fifo tty: n_gsm: fix incorrect UA handling tty: n_gsm: fix reset fifo race condition tty: n_gsm: fix missing tty wakeup in convergence layer type 2 tty: n_gsm: fix wrong signal octets encoding in MSC tty: n_gsm: fix wrong command frame length field encoding tty: n_gsm: fix wrong command retry handling tty: n_gsm: fix missing explicit ldisc flush tty: n_gsm: fix wrong DLCI release order tty: n_gsm: fix insufficient txframe size ...
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