- Add Gen4 automotive device IDs (Kelvin Cao)
- Declare state_names[] as static so it's not allocated and initialized for
every call (Kelvin Cao)
* pci/switchtec:
PCI/switchtec: Declare local state_names[] as static
PCI/switchtec: Add Gen4 automotive device IDs
- Always write Intel I210 ROM BAR on update to work around device defect
(Bjorn Helgaas)
* pci/resource:
PCI: Work around Intel I210 ROM BAR overlap defect
- Convert amd64-agp, sis-agp, via-agp from legacy PCI power management to
generic power management (Vaibhav Gupta)
* pci/legacy-pm-removal:
via-agp: convert to generic power management
sis-agp: convert to generic power management
amd64-agp: convert to generic power management
- Use pci_find_vsec_capability() instead of open-coding it (Andy
Shevchenko)
- Convert pci_dev_present() stub from macro to static inline to avoid
'unused variable' errors (Hans de Goede)
- Convert sysfs slot attributes from default_attrs to default_groups (Greg
Kroah-Hartman)
- Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum (Rajat
Jain)
- Remove unnecessary initialization of static variables (Longji Guo)
* pci/enumeration:
x86/PCI: Remove initialization of static variables to false
PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum
PCI/sysfs: Use default_groups in kobj_type for slot attrs
PCI: Convert pci_dev_present() stub to static inline
PCI: Use pci_find_vsec_capability() when looking for TBT devices
- Calculate link L0s and L1 exit latencies when needed instead of caching
them (Saheed O. Bolarinwa)
- Calculate device L0s and L1 acceptable exit latencies when needed instead
of caching them (Saheed O. Bolarinwa)
- Remove struct aspm_latency since it's no longer needed (Saheed O.
Bolarinwa)
* pci/aspm:
PCI/ASPM: Remove struct aspm_latency
PCI/ASPM: Stop caching device L0s, L1 acceptable exit latencies
PCI/ASPM: Stop caching link L0s, L1 exit latencies
PCI/ASPM: Move pci_function_0() upward
Entries without dmi_table nor codec_hid field need to be placed after
entries with these two fields or they will be always selected.
Signed-off-by: Brent Lu <brent.lu@intel.com>
Link: https://lore.kernel.org/r/20220113105220.1114694-3-brent.lu@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add rules to select SOF driver for Jasper Lake systems if digital
microphone is present or the system is a Chromebook.
Signed-off-by: Brent Lu <brent.lu@intel.com>
Link: https://lore.kernel.org/r/20220113105220.1114694-2-brent.lu@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
they're mostly minor cleanups and some debugfs stuff. The real work
that's in here is the typical pile of clk driver updates and new SoC
support. Per usual (or maybe just recent trends), Qualcomm gains a
handful of SoC drivers additions and has the largest diffstat. After
that there are quite a few updates to the Allwinner (sunxi) drivers to
support modular drivers and Renesas is heavily updated to add more
support for various clks. Overall it looks pretty normal.
New Drivers:
- Add MDMA and BDMA clks to Ingenic JZ4760 and JZ4770
- MediaTek mt7986 SoC basic support
- Clock and reset driver for Toshiba Visconti SoCs
- Initial clock driver for the Exynos7885 SoC (Samsung Galaxy A8)
- Allwinner D1 clks
- Lan966x Generic Clock Controller driver and associated DT bindings
- Qualcomm SDX65, SM8450, and MSM8976 GCC clks
- Qualcomm SDX65 and SM8450 RPMh clks
Updates:
- Set suppress_bind_attrs to true for i.MX8ULP driver
- Switch from do_div to div64_ul for throughout all i.MX drivers
- Fix imx8mn_clko1_sels for i.MX8MN
- Remove unused IPG_AUDIO_ROOT from i.MX8MP
- Switch parent for audio_root_clk to audio ahb in i.MX8MP driver
- Removal of all remaining uses of __clk_lookup() in drivers/clk/samsung
- Refactoring of the CPU clocks registration to use common interface
- An update of the Exynos850 driver (support for more clock domains)
required by the E850-96 development board
- Prep for runtime PM and generic power domains on Tegra
- Support modular Allwinner clk drivers via platform bus
- Lan966x clock driver extended to support clock gating
- Add serial (SCI1), watchdog (WDT), timer (OSTM), SPI (RSPI), and
thermal (TSU) clocks and resets on Renesas RZ/G2L
- Rework SDHI clock handling in the Renesas R-Car Gen3 and RZ/G2 clock
drivers, and in the Renesas SDHI driver
- Make the Cortex-A55 (I) clock on Renesas RZ/G2L programmable
- Document support for the new Renesas R-Car S4-8 (R8A779F0) SoC
- Add support for the new Renesas R-Car S4-8 (R8A779F0) SoC
- Add GPU clock and resets on Renesas RZ/G2L
- Add clk-provider.h to various Qualcomm clk drivers
- devm version of clk_hw_register_gate()
- kerneldoc fixes in a couple drivers
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have a couple patches in the framework core this time around but
they're mostly minor cleanups and some debugfs stuff. The real work
that's in here is the typical pile of clk driver updates and new SoC
support.
Per usual (or maybe just recent trends), Qualcomm gains a handful of
SoC drivers additions and has the largest diffstat. After that there
are quite a few updates to the Allwinner (sunxi) drivers to support
modular drivers and Renesas is heavily updated to add more support for
various clks.
Overall it looks pretty normal.
New Drivers:
- Add MDMA and BDMA clks to Ingenic JZ4760 and JZ4770
- MediaTek mt7986 SoC basic support
- Clock and reset driver for Toshiba Visconti SoCs
- Initial clock driver for the Exynos7885 SoC (Samsung Galaxy A8)
- Allwinner D1 clks
- Lan966x Generic Clock Controller driver and associated DT bindings
- Qualcomm SDX65, SM8450, and MSM8976 GCC clks
- Qualcomm SDX65 and SM8450 RPMh clks
Updates:
- Set suppress_bind_attrs to true for i.MX8ULP driver
- Switch from do_div to div64_ul for throughout all i.MX drivers
- Fix imx8mn_clko1_sels for i.MX8MN
- Remove unused IPG_AUDIO_ROOT from i.MX8MP
- Switch parent for audio_root_clk to audio ahb in i.MX8MP driver
- Removal of all remaining uses of __clk_lookup() in
drivers/clk/samsung
- Refactoring of the CPU clocks registration to use common interface
- An update of the Exynos850 driver (support for more clock domains)
required by the E850-96 development board
- Prep for runtime PM and generic power domains on Tegra
- Support modular Allwinner clk drivers via platform bus
- Lan966x clock driver extended to support clock gating
- Add serial (SCI1), watchdog (WDT), timer (OSTM), SPI (RSPI), and
thermal (TSU) clocks and resets on Renesas RZ/G2L
- Rework SDHI clock handling in the Renesas R-Car Gen3 and RZ/G2
clock drivers, and in the Renesas SDHI driver
- Make the Cortex-A55 (I) clock on Renesas RZ/G2L programmable
- Document support for the new Renesas R-Car S4-8 (R8A779F0) SoC
- Add support for the new Renesas R-Car S4-8 (R8A779F0) SoC
- Add GPU clock and resets on Renesas RZ/G2L
- Add clk-provider.h to various Qualcomm clk drivers
- devm version of clk_hw_register_gate()
- kerneldoc fixes in a couple drivers"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (131 commits)
clk: visconti: Remove pointless NULL check in visconti_pll_add_lookup()
clk: mediatek: add mt7986 clock support
clk: mediatek: add mt7986 clock IDs
dt-bindings: clock: mediatek: document clk bindings for mediatek mt7986 SoC
clk: mediatek: clk-gate: Use regmap_{set/clear}_bits helpers
clk: mediatek: clk-gate: Shrink by adding clockgating bit check helper
clk: x86: Fix clk_gate_flags for RV_CLK_GATE
clk: x86: Use dynamic con_id string during clk registration
ACPI: APD: Add a fmw property clk-name
drivers: acpi: acpi_apd: Remove unused device property "is-rv"
x86: clk: clk-fch: Add support for newer family of AMD's SOC
clk: ingenic: Add MDMA and BDMA clocks
dt-bindings: clk/ingenic: Add MDMA and BDMA clocks
clk: bm1880: remove kfrees on static allocations
clk: Drop unused COMMON_CLK_STM32MP157_SCMI config
clk: st: clkgen-mux: search reg within node or parent
clk: st: clkgen-fsyn: search reg within node or parent
clk: Enable/Disable runtime PM for clk_summary
MAINTAINERS: Add entries for Toshiba Visconti PLL and clock controller
clk: visconti: Add support common clock driver and reset driver
...
I had to rebase at last moment to fix wrong author of one
commit. Sorry about that.
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Merge tag 'leds-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"Nothing major is happening here"
* tag 'leds-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: lp55xx: initialise output direction from dts
ARM: dts: omap3-n900: Fix lp5523 for multi color
leds: ktd2692: Drop calling dev_of_node() in ktd2692_parse_dt
leds: lgm-sso: Get rid of duplicate of_node assignment
leds: tca6507: Get rid of duplicate of_node assignment
leds: leds-fsg: Drop FSG3 LED driver
leds: lp50xx: remove unused variable
dt-bindings: leds: Replace moonlight with indicator in mt6360 example
leds: led-core: Update fwnode with device_set_node
leds: tca6507: use swap() to make code cleaner
leds: Add mt6360 driver
dt-bindings: leds: Add bindings for MT6360 LED
Bindings:
- DT schema conversions for Samsung clocks, RNG bindings, Qcom Command
DB and rmtfs, gpio-restart, i2c-mux-gpio, i2c-mux-pinctl, Tegra I2C
and BPMP, pwm-vibrator, Arm DSU, and Cadence macb
- DT schema conversions for Broadcom platforms: interrupt controllers,
STB GPIO, STB waketimer, STB reset, iProc MDIO mux, iProc PCIe,
Cygnus PCIe PHY, PWM, USB BDC, BCM6328 LEDs, TMON, SYSTEMPORT, AMAC,
Northstar 2 PCIe PHY, GENET, moca PHY, GISB arbiter, and SATA
- Add binding schemas for Tegra210 EMC table, TI DC-DC converters,
- Clean-ups of MDIO bus schemas to fix 'unevaluatedProperties' issues
- More fixes due to 'unevaluatedProperties' enabling
- Data type fixes and clean-ups of binding examples found in preparation
to move to validating DTB files directly (instead of intermediate YAML
representation.
- Vendor prefixes for T-Head Semiconductor, OnePlus, and Sunplus
- Add various new compatible strings
DT core:
- Silence a warning for overlapping reserved memory regions
- Reimplement unittest overlay tracking
- Fix stack frame size warning in unittest
- Clean-ups of early FDT scanning functions
- Fix handling of "linux,usable-memory-range" on EFI booted systems
- Add support for 'fail' status on CPU nodes
- Improve error message in of_phandle_iterator_next()
- kbuild: Disable duplicate unit-address warnings for disabled nodes
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Merge tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"Bindings:
- DT schema conversions for Samsung clocks, RNG bindings, Qcom
Command DB and rmtfs, gpio-restart, i2c-mux-gpio, i2c-mux-pinctl,
Tegra I2C and BPMP, pwm-vibrator, Arm DSU, and Cadence macb
- DT schema conversions for Broadcom platforms: interrupt
controllers, STB GPIO, STB waketimer, STB reset, iProc MDIO mux,
iProc PCIe, Cygnus PCIe PHY, PWM, USB BDC, BCM6328 LEDs, TMON,
SYSTEMPORT, AMAC, Northstar 2 PCIe PHY, GENET, moca PHY, GISB
arbiter, and SATA
- Add binding schemas for Tegra210 EMC table, TI DC-DC converters,
- Clean-ups of MDIO bus schemas to fix 'unevaluatedProperties' issues
- More fixes due to 'unevaluatedProperties' enabling
- Data type fixes and clean-ups of binding examples found in
preparation to move to validating DTB files directly (instead of
intermediate YAML representation.
- Vendor prefixes for T-Head Semiconductor, OnePlus, and Sunplus
- Add various new compatible strings
DT core:
- Silence a warning for overlapping reserved memory regions
- Reimplement unittest overlay tracking
- Fix stack frame size warning in unittest
- Clean-ups of early FDT scanning functions
- Fix handling of "linux,usable-memory-range" on EFI booted systems
- Add support for 'fail' status on CPU nodes
- Improve error message in of_phandle_iterator_next()
- kbuild: Disable duplicate unit-address warnings for disabled nodes"
* tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (114 commits)
dt-bindings: net: mdio: Drop resets/reset-names child properties
dt-bindings: clock: samsung: convert S5Pv210 to dtschema
dt-bindings: clock: samsung: convert Exynos5410 to dtschema
dt-bindings: clock: samsung: convert Exynos5260 to dtschema
dt-bindings: clock: samsung: extend Exynos7 bindings with UFS
dt-bindings: clock: samsung: convert Exynos7 to dtschema
dt-bindings: clock: samsung: convert Exynos5433 to dtschema
dt-bindings: i2c: maxim,max96712: Add bindings for Maxim Integrated MAX96712
dt-bindings: iio: adi,ltc2983: Fix 64-bit property sizes
dt-bindings: power: maxim,max17040: Fix incorrect type for 'maxim,rcomp'
dt-bindings: interrupt-controller: arm,gic-v3: Fix 'interrupts' cell size in example
dt-bindings: iio/magnetometer: yamaha,yas530: Fix invalid 'interrupts' in example
dt-bindings: clock: imx5: Drop clock consumer node from example
dt-bindings: Drop required 'interrupt-parent'
dt-bindings: net: ti,dp83869: Drop value on boolean 'ti,max-output-impedance'
dt-bindings: net: wireless: mt76: Fix 8-bit property sizes
dt-bindings: PCI: snps,dw-pcie-ep: Drop conflicting 'max-functions' schema
dt-bindings: i2c: st,stm32-i2c: Make each example a separate entry
dt-bindings: net: stm32-dwmac: Make each example a separate entry
dt-bindings: net: Cleanup MDIO node schemas
...
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Merge tag 'for-linus-5.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- a fix for the Xen gntdev driver
- a fix for running as Xen dom0 booted via EFI and the EFI framebuffer
being located above 4GB
- a series for support of mapping other guest's memory by using zone
device when running as Xen guest on Arm
* tag 'for-linus-5.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
dt-bindings: xen: Clarify "reg" purpose
arm/xen: Read extended regions from DT and init Xen resource
xen/unpopulated-alloc: Add mechanism to use Xen resource
xen/balloon: Bring alloc(free)_xenballooned_pages helpers back
arm/xen: Switch to use gnttab_setup_auto_xlat_frames() for DT
xen/unpopulated-alloc: Drop check for virt_addr_valid() in fill_list()
xen/x86: obtain upper 32 bits of video frame buffer address for Dom0
xen/gntdev: fix unmap notification order
misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and
LIVEPATCH as the backtrace misses the function which is being fixed up.
- Add Straight Light Speculation mitigation support which uses a new
compiler switch -mharden-sls= which sticks an INT3 after a RET or an
indirect branch in order to block speculation after them. Reportedly,
CPUs do speculate behind such insns.
- The usual set of cleanups and improvements
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Merge tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 core updates from Borislav Petkov:
- Get rid of all the .fixup sections because this generates
misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and
LIVEPATCH as the backtrace misses the function which is being fixed
up.
- Add Straight Line Speculation mitigation support which uses a new
compiler switch -mharden-sls= which sticks an INT3 after a RET or an
indirect branch in order to block speculation after them. Reportedly,
CPUs do speculate behind such insns.
- The usual set of cleanups and improvements
* tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
x86/entry_32: Fix segment exceptions
objtool: Remove .fixup handling
x86: Remove .fixup section
x86/word-at-a-time: Remove .fixup usage
x86/usercopy: Remove .fixup usage
x86/usercopy_32: Simplify __copy_user_intel_nocache()
x86/sgx: Remove .fixup usage
x86/checksum_32: Remove .fixup usage
x86/vmx: Remove .fixup usage
x86/kvm: Remove .fixup usage
x86/segment: Remove .fixup usage
x86/fpu: Remove .fixup usage
x86/xen: Remove .fixup usage
x86/uaccess: Remove .fixup usage
x86/futex: Remove .fixup usage
x86/msr: Remove .fixup usage
x86/extable: Extend extable functionality
x86/entry_32: Remove .fixup usage
x86/entry_64: Remove .fixup usage
x86/copy_mc_64: Remove .fixup usage
...
"Cleanup of the perf/kvm interaction."
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Merge tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Borislav Petkov:
"Cleanup of the perf/kvm interaction."
* tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Drop guest callback (un)register stubs
KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c
KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y
KVM: arm64: Convert to the generic perf callbacks
KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c
KVM: Move x86's perf guest info callbacks to generic KVM
KVM: x86: More precisely identify NMI from guest when handling PMI
KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable
perf/core: Use static_call to optimize perf_guest_info_callbacks
perf: Force architectures to opt-in to guest callbacks
perf: Add wrappers for invoking guest callbacks
perf/core: Rework guest callbacks to prepare for static_call support
perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv
perf: Stop pretending that perf can handle multiple guest callbacks
KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest
KVM: x86: Register perf callbacks after calling vendor's hardware_setup()
perf: Protect perf_guest_cbs with RCU
Including:
- Identity domain support for virtio-iommu
- Move flush queue code into iommu-dma
- Some fixes for AMD IOMMU suspend/resume support when x2apic
is used
- Arm SMMU Updates from Will Deacon:
- Revert evtq and priq back to their former sizes
- Return early on short-descriptor page-table allocation failure
- Fix page fault reporting for Adreno GPU on SMMUv2
- Make SMMUv3 MMU notifier ops 'const'
- Numerous new compatible strings for Qualcomm SMMUv2 implementations
- Various smaller fixes and cleanups
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Merge tag 'iommu-updates-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- Identity domain support for virtio-iommu
- Move flush queue code into iommu-dma
- Some fixes for AMD IOMMU suspend/resume support when x2apic is used
- Arm SMMU Updates from Will Deacon:
- Revert evtq and priq back to their former sizes
- Return early on short-descriptor page-table allocation failure
- Fix page fault reporting for Adreno GPU on SMMUv2
- Make SMMUv3 MMU notifier ops 'const'
- Numerous new compatible strings for Qualcomm SMMUv2 implementations
- Various smaller fixes and cleanups
* tag 'iommu-updates-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (38 commits)
iommu/iova: Temporarily include dma-mapping.h from iova.h
iommu: Move flush queue data into iommu_dma_cookie
iommu/iova: Move flush queue code to iommu-dma
iommu/iova: Consolidate flush queue code
iommu/vt-d: Use put_pages_list
iommu/amd: Use put_pages_list
iommu/amd: Simplify pagetable freeing
iommu/iova: Squash flush_cb abstraction
iommu/iova: Squash entry_dtor abstraction
iommu/iova: Fix race between FQ timeout and teardown
iommu/amd: Fix typo in *glues … together* in comment
iommu/vt-d: Remove unused dma_to_mm_pfn function
iommu/vt-d: Drop duplicate check in dma_pte_free_pagetable()
iommu/vt-d: Use bitmap_zalloc() when applicable
iommu/amd: Remove useless irq affinity notifier
iommu/amd: X2apic mode: mask/unmask interrupts on suspend/resume
iommu/amd: X2apic mode: setup the INTX registers on mask/unmask
iommu/amd: X2apic mode: re-enable after resume
iommu/amd: Restore GA log/tail pointer on host resume
iommu/iova: Move fast alloc size roundup into alloc_iova_fast()
...
- Rework ACPI sub-table infrastructure to optionally be used outside of
__init scenarios and use it for CEDT.CFMWS sub-table parsing.
- Add support for extending num_possible_nodes by the potential hotplug
CXL memory ranges
- Extend tools/testing/cxl with mock memory device health information
- Fix a module-reload workqueue race
- Fix excessive stack-frame usage
- Rename the driver context data structure from "cxl_mem" since that
name collides with a proposed driver name
- Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
build time
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Merge tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
"The highlight is initial support for CXL memory hotplug. The static
NUMA node (ACPI SRAT Physical Address to Proximity Domain) information
known to platform firmware is extended to support the potential
performance-class / memory-target nodes dynamically created from
available CXL memory device capacity.
New unit test infrastructure is added for validating health
information payloads.
Fixes to module reload stress and stack usage from exposure in -next
are included. A symbol rename and some other miscellaneous fixups are
included as well.
Summary:
- Rework ACPI sub-table infrastructure to optionally be used outside
of __init scenarios and use it for CEDT.CFMWS sub-table parsing.
- Add support for extending num_possible_nodes by the potential
hotplug CXL memory ranges
- Extend tools/testing/cxl with mock memory device health information
- Fix a module-reload workqueue race
- Fix excessive stack-frame usage
- Rename the driver context data structure from "cxl_mem" since that
name collides with a proposed driver name
- Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
build time"
* tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/core: Remove cxld_const_init in cxl_decoder_alloc()
cxl/pmem: Fix module reload vs workqueue state
ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT
cxl/test: Mock acpi_table_parse_cedt()
cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers
ACPI: Add a context argument for table parsing handlers
ACPI: Teach ACPI table parsing about the CEDT header format
ACPI: Keep sub-table parsing infrastructure available for modules
tools/testing/cxl: add mock output for the GET_HEALTH_INFO command
cxl/memdev: Remove unused cxlmd field
cxl/core: Convert to EXPORT_SYMBOL_NS_GPL
cxl/memdev: Change cxl_mem to a more descriptive name
cxl/mbox: Remove bad comment
cxl/pmem: Fix reference counting for delayed work
- Simplify the dax_operations API
- Eliminate bdev_dax_pgoff() in favor of the filesystem maintaining
and applying a partition offset to all its DAX iomap operations.
- Remove wrappers and device-mapper stacked callbacks for
->copy_from_iter() and ->copy_to_iter() in favor of moving
block_device relative offset responsibility to the
dax_direct_access() caller.
- Remove the need for an @bdev in filesystem-DAX infrastructure
- Remove unused uio helpers copy_from_iter_flushcache() and
copy_mc_to_iter() as only the non-check_copy_size() versions are
used for DAX.
- Prepare XFS for the pending (next merge window) DAX+reflink support
- Remove deprecated DEV_DAX_PMEM_COMPAT support
- Cleanup a straggling misuse of the GUID api
Tags offered after the branch was cut:
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/Ydb/3P+8nvjCjYfO@redhat.com
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Merge tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax and libnvdimm updates from Dan Williams:
"The bulk of this is a rework of the dax_operations API after
discovering the obstacles it posed to the work-in-progress DAX+reflink
support for XFS and other copy-on-write filesystem mechanics.
Primarily the need to plumb a block_device through the API to handle
partition offsets was a sticking point and Christoph untangled that
dependency in addition to other cleanups to make landing the
DAX+reflink support easier.
The DAX_PMEM_COMPAT option has been around for 4 years and not only
are distributions shipping userspace that understand the current
configuration API, but some are not even bothering to turn this option
on anymore, so it seems a good time to remove it per the deprecation
schedule. Recall that this was added after the device-dax subsystem
moved from /sys/class/dax to /sys/bus/dax for its sysfs organization.
All recent functionality depends on /sys/bus/dax.
Some other miscellaneous cleanups and reflink prep patches are
included as well.
Summary:
- Simplify the dax_operations API:
- Eliminate bdev_dax_pgoff() in favor of the filesystem
maintaining and applying a partition offset to all its DAX iomap
operations.
- Remove wrappers and device-mapper stacked callbacks for
->copy_from_iter() and ->copy_to_iter() in favor of moving
block_device relative offset responsibility to the
dax_direct_access() caller.
- Remove the need for an @bdev in filesystem-DAX infrastructure
- Remove unused uio helpers copy_from_iter_flushcache() and
copy_mc_to_iter() as only the non-check_copy_size() versions are
used for DAX.
- Prepare XFS for the pending (next merge window) DAX+reflink support
- Remove deprecated DEV_DAX_PMEM_COMPAT support
- Cleanup a straggling misuse of the GUID api"
* tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (38 commits)
iomap: Fix error handling in iomap_zero_iter()
ACPI: NFIT: Import GUID before use
dax: remove the copy_from_iter and copy_to_iter methods
dax: remove the DAXDEV_F_SYNC flag
dax: simplify dax_synchronous and set_dax_synchronous
uio: remove copy_from_iter_flushcache() and copy_mc_to_iter()
iomap: turn the byte variable in iomap_zero_iter into a ssize_t
memremap: remove support for external pgmap refcounts
fsdax: don't require CONFIG_BLOCK
iomap: build the block based code conditionally
dax: fix up some of the block device related ifdefs
fsdax: shift partition offset handling into the file systems
dax: return the partition offset from fs_dax_get_by_bdev
iomap: add a IOMAP_DAX flag
xfs: pass the mapping flags to xfs_bmbt_to_iomap
xfs: use xfs_direct_write_iomap_ops for DAX zeroing
xfs: move dax device handling into xfs_{alloc,free}_buftarg
ext4: cleanup the dax handling in ext4_fill_super
ext2: cleanup the dax handling in ext2_fill_super
fsdax: decouple zeroing from the iomap buffered I/O code
...
Since all MIPS-specific code has been removed from driver, allow it to be
enabled for COMPILE_TEST on all architectures.
Mark it as tristate and remove MIPS the MIPS dependency.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The MT7621 PCIe host controller driver can be built as a module, but it
lacks a MODULE_LICENSE(), which causes a build error:
ERROR: modpost: missing MODULE_LICENSE() in drivers/pci/controller/pcie-mt7621.o
Add MODULE_LICENSE() to the driver.
Fixes: 2bdd5238e7 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver")
Link: https://lore.kernel.org/r/20211207104924.21327-5-sergio.paracuellos@gmail.com
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
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Merge tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull fscache rewrite from David Howells:
"This is a set of patches that rewrites the fscache driver and the
cachefiles driver, significantly simplifying the code compared to
what's upstream, removing the complex operation scheduling and object
state machine in favour of something much smaller and simpler.
The series is structured such that the first few patches disable
fscache use by the network filesystems using it, remove the cachefiles
driver entirely and as much of the fscache driver as can be got away
with without causing build failures in the network filesystems.
The patches after that recreate fscache and then cachefiles,
attempting to add the pieces in a logical order. Finally, the
filesystems are reenabled and then the very last patch changes the
documentation.
[!] Note: I have dropped the cifs patch for the moment, leaving local
caching in cifs disabled. I've been having trouble getting that
working. I think I have it done, but it needs more testing (there
seem to be some test failures occurring with v5.16 also from
xfstests), so I propose deferring that patch to the end of the
merge window.
WHY REWRITE?
============
Fscache's operation scheduling API was intended to handle sequencing
of cache operations, which were all required (where possible) to run
asynchronously in parallel with the operations being done by the
network filesystem, whilst allowing the cache to be brought online and
offline and to interrupt service for invalidation.
With the advent of the tmpfile capacity in the VFS, however, an
opportunity arises to do invalidation much more simply, without having
to wait for I/O that's actually in progress: Cachefiles can simply
create a tmpfile, cut over the file pointer for the backing object
attached to a cookie and abandon the in-progress I/O, dismissing it
upon completion.
Future work here would involve using Omar Sandoval's vfs_link() with
AT_LINK_REPLACE[1] to allow an extant file to be displaced by a new
hard link from a tmpfile as currently I have to unlink the old file
first.
These patches can also simplify the object state handling as I/O
operations to the cache don't all have to be brought to a stop in
order to invalidate a file. To that end, and with an eye on to writing
a new backing cache model in the future, I've taken the opportunity to
simplify the indexing structure.
I've separated the index cookie concept from the file cookie concept
by C type now. The former is now called a "volume cookie" (struct
fscache_volume) and there is a container of file cookies. There are
then just the two levels. All the index cookie levels are collapsed
into a single volume cookie, and this has a single printable string as
a key. For instance, an AFS volume would have a key of something like
"afs,example.com,1000555", combining the filesystem name, cell name
and volume ID. This is freeform, but must not have '/' chars in it.
I've also eliminated all pointers back from fscache into the network
filesystem. This required the duplication of a little bit of data in
the cookie (cookie key, coherency data and file size), but it's not
actually that much. This gets rid of problems with making sure we keep
netfs data structures around so that the cache can access them.
These patches mean that most of the code that was in the drivers
before is simply gone and those drivers are now almost entirely new
code. That being the case, there doesn't seem any particular reason to
try and maintain bisectability across it. Further, there has to be a
point in the middle where things are cut over as there's a single
point everything has to go through (ie. /dev/cachefiles) and it can't
be in use by two drivers at once.
ISSUES YET OUTSTANDING
======================
There are some issues still outstanding, unaddressed by this patchset,
that will need fixing in future patchsets, but that don't stop this
series from being usable:
(1) The cachefiles driver needs to stop using the backing filesystem's
metadata to store information about what parts of the cache are
populated. This is not reliable with modern extent-based
filesystems.
Fixing this is deferred to a separate patchset as it involves
negotiation with the network filesystem and the VM as to how much
data to download to fulfil a read - which brings me on to (2)...
(2) NFS (and CIFS with the dropped patch) do not take account of how
the cache would like I/O to be structured to meet its granularity
requirements. Previously, the cache used page granularity, which
was fine as the network filesystems also dealt in page
granularity, and the backing filesystem (ext4, xfs or whatever)
did whatever it did out of sight. However, we now have folios to
deal with and the cache will now have to store its own metadata to
track its contents.
The change I'm looking at making for cachefiles is to store
content bitmaps in one or more xattrs and making a bit in the map
correspond to something like a 256KiB block. However, the size of
an xattr and the fact that they have to be read/updated in one go
means that I'm looking at covering 1GiB of data per 512-byte map
and storing each map in an xattr. Cachefiles has the potential to
grow into a fully fledged filesystem of its very own if I'm not
careful.
However, I'm also looking at changing things even more radically
and going to a different model of how the cache is arranged and
managed - one that's more akin to the way, say, openafs does
things - which brings me on to (3)...
(3) The way cachefilesd does culling is very inefficient for large
caches and it would be better to move it into the kernel if I can
as cachefilesd has to keep asking the kernel if it can cull a
file. Changing the way the backend works would allow this to be
addressed.
BITS THAT MAY BE CONTROVERSIAL
==============================
There are some bits I've added that may be controversial:
(1) I've provided a flag, S_KERNEL_FILE, that cachefiles uses to check
if a files is already being used by some other kernel service
(e.g. a duplicate cachefiles cache in the same directory) and
reject it if it is. This isn't entirely necessary, but it helps
prevent accidental data corruption.
I don't want to use S_SWAPFILE as that has other effects, but
quite possibly swapon() should set S_KERNEL_FILE too.
Note that it doesn't prevent userspace from interfering, though
perhaps it should. (I have made it prevent a marked directory from
being rmdir-able).
(2) Cachefiles wants to keep the backing file for a cookie open whilst
we might need to write to it from network filesystem writeback.
The problem is that the network filesystem unuses its cookie when
its file is closed, and so we have nothing pinning the cachefiles
file open and it will get closed automatically after a short time
to avoid EMFILE/ENFILE problems.
Reopening the cache file, however, is a problem if this is being
done due to writeback triggered by exit(). Some filesystems will
oops if we try to open a file in that context because they want to
access current->fs or suchlike.
To get around this, I added the following:
(A) An inode flag, I_PINNING_FSCACHE_WB, to be set on a network
filesystem inode to indicate that we have a usage count on the
cookie caching that inode.
(B) A flag in struct writeback_control, unpinned_fscache_wb, that
is set when __writeback_single_inode() clears the last dirty
page from i_pages - at which point it clears
I_PINNING_FSCACHE_WB and sets this flag.
This has to be done here so that clearing I_PINNING_FSCACHE_WB
can be done atomically with the check of PAGECACHE_TAG_DIRTY
that clears I_DIRTY_PAGES.
(C) A function, fscache_set_page_dirty(), which if it is not set,
sets I_PINNING_FSCACHE_WB and calls fscache_use_cookie() to
pin the cache resources.
(D) A function, fscache_unpin_writeback(), to be called by
->write_inode() to unuse the cookie.
(E) A function, fscache_clear_inode_writeback(), to be called when
the inode is evicted, before clear_inode() is called. This
cleans up any lingering I_PINNING_FSCACHE_WB.
The network filesystem can then use these tools to make sure that
fscache_write_to_cache() can write locally modified data to the
cache as well as to the server.
For the future, I'm working on write helpers for netfs lib that
should allow this facility to be removed by keeping track of the
dirty regions separately - but that's incomplete at the moment and
is also going to be affected by folios, one way or another, since
it deals with pages"
Link: https://lore.kernel.org/all/510611.1641942444@warthog.procyon.org.uk/
Tested-by: Dominique Martinet <asmadeus@codewreck.org> # 9p
Tested-by: kafs-testing@auristor.com # afs
Tested-by: Jeff Layton <jlayton@kernel.org> # ceph
Tested-by: Dave Wysochanski <dwysocha@redhat.com> # nfs
Tested-by: Daire Byrne <daire@dneg.com> # nfs
* tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (67 commits)
9p, afs, ceph, nfs: Use current_is_kswapd() rather than gfpflags_allow_blocking()
fscache: Add a tracepoint for cookie use/unuse
fscache: Rewrite documentation
ceph: add fscache writeback support
ceph: conversion to new fscache API
nfs: Implement cache I/O by accessing the cache directly
nfs: Convert to new fscache volume/cookie API
9p: Copy local writes to the cache when writing to the server
9p: Use fscache indexing rewrite and reenable caching
afs: Skip truncation on the server of data we haven't written yet
afs: Copy local writes to the cache when writing to the server
afs: Convert afs to use the new fscache API
fscache, cachefiles: Display stat of culling events
fscache, cachefiles: Display stats of no-space events
cachefiles: Allow cachefiles to actually function
fscache, cachefiles: Store the volume coherency data
cachefiles: Implement the I/O routines
cachefiles: Implement cookie resize for truncate
cachefiles: Implement begin and end I/O operation
cachefiles: Implement backing file wrangling
...
On the MIPS ralink mt7621 platform, we need to set up I/O coherency units
based on the host bridge apertures.
To remove this arch dependency from the driver itself, move the coherency
setup from the driver to pcibios_root_bridge_prepare().
[bhelgaas: squash add/remove into one patch, commit log]
Link: https://lore.kernel.org/r/20211207104924.21327-3-sergio.paracuellos@gmail.com
Link: https://lore.kernel.org/r/20211207104924.21327-4-sergio.paracuellos@gmail.com
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net> # arch/mips
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> # arch/mips
When pci_register_host_bridge() is called, bridge->windows are already
available. However these windows are being moved temporarily from there.
To let pcibios_root_bridge_prepare() have access to these windows, move the
windows movement after calling this function. This is useful for the MIPS
ralink mt7621 platform so it can set up I/O coherence units and avoid
custom MIPS code in the mt7621 PCIe controller driver.
Link: https://lore.kernel.org/r/20211207104924.21327-2-sergio.paracuellos@gmail.com
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Fix a regression introduced in 5.15
- Extend the size of the FUSE_INIT request to accommodate for more
flags. There's a slight possibility of a regression for obscure fuse
servers; if this happens, then more complexity will need to be added
to the protocol
- Allow the DAX property to be controlled by the server on a per-inode
basis in virtiofs
- Allow sending security context to the server when creating a file or
directory
* tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
Documentation/filesystem/dax: DAX on virtiofs
fuse: mark inode DONT_CACHE when per inode DAX hint changes
fuse: negotiate per inode DAX in FUSE_INIT
fuse: enable per inode DAX
fuse: support per inode DAX in fuse protocol
fuse: make DAX mount option a tri-state
fuse: add fuse_should_enable_dax() helper
fuse: Pass correct lend value to filemap_write_and_wait_range()
fuse: send security context of inode on file
fuse: extend init flags
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Merge tag 'fs_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF / reiserfs updates from Jan Kara:
"One UDF fix and one reiserfs cleanup"
* tag 'fs_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fix error handling in udf_new_inode()
reiserfs: don't use congestion_wait()
Sparse complains about mt7621_pci_ops symbol is not declared and asks if
it should be declared as static instead. Sparse is right. Hence declare
symbol as static.
Link: https://lore.kernel.org/r/20211117152952.12271-1-sergio.paracuellos@gmail.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
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Merge tag 'fsnotify_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fanotify updates from Jan Kara:
"Support for new FAN_RENAME fanotify event and support for reporting
child info in directory fanotify events (FAN_REPORT_TARGET_FID)"
* tag 'fsnotify_for_v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: wire up FAN_RENAME event
fanotify: report old and/or new parent+name in FAN_RENAME event
fanotify: record either old name new name or both for FAN_RENAME
fanotify: record old and new parent and name in FAN_RENAME event
fanotify: support secondary dir fh and name in fanotify_info
fanotify: use helpers to parcel fanotify_info buffer
fanotify: use macros to get the offset to fanotify_info buffer
fsnotify: generate FS_RENAME event with rich information
fanotify: introduce group flag FAN_REPORT_TARGET_FID
fsnotify: separate mark iterator type from object type enum
fsnotify: clarify object type argument
This should be all that is needed for XFS to use large folios.
There is no code in this pull request to create large folios, but
no additional changes should be needed to XFS or iomap once they
are created.
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Merge tag 'iomap-5.17' of git://git.infradead.org/users/willy/linux
Pull iomap updates from Matthew Wilcox:
"Convert xfs/iomap to use folios.
This should be all that is needed for XFS to use large folios. There
is no code in this pull request to create large folios, but no
additional changes should be needed to XFS or iomap once they are
created.
Usually this would have come from Darrick, and we had intended that it
would come that route. Between the holidays and various things which
Darrick needed to work on, he asked if I could send things directly.
There weren't any other iomap patches pending for this release, which
probably also played a role"
* tag 'iomap-5.17' of git://git.infradead.org/users/willy/linux: (26 commits)
iomap: Inline __iomap_zero_iter into its caller
xfs: Support large folios
iomap: Support large folios in invalidatepage
iomap: Convert iomap_migrate_page() to use folios
iomap: Convert iomap_add_to_ioend() to take a folio
iomap: Simplify iomap_do_writepage()
iomap: Simplify iomap_writepage_map()
iomap,xfs: Convert ->discard_page to ->discard_folio
iomap: Convert iomap_write_end_inline to take a folio
iomap: Convert iomap_write_begin() and iomap_write_end() to folios
iomap: Convert __iomap_zero_iter to use a folio
iomap: Allow iomap_write_begin() to be called with the full length
iomap: Convert iomap_page_mkwrite to use a folio
iomap: Convert readahead and readpage to use a folio
iomap: Convert iomap_read_inline_data to take a folio
iomap: Use folio offsets instead of page offsets
iomap: Convert bio completions to use folios
iomap: Pass the iomap_page into iomap_set_range_uptodate
iomap: Add iomap_invalidate_folio
iomap: Convert iomap_releasepage to use a folio
...
This patchset stops just short of actually enabling large folios.
It converts everything that I noticed needs to be converted, but there may
still be places I've overlooked which still have page size assumptions.
The big change here is using large entries in the page cache XArray
instead of many small entries. That only affects shmem for now, but
it's a pretty big change for shmem since it changes where memory needs
to be allocated (at split time instead of insertion).
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Merge tag 'folio-5.17' of git://git.infradead.org/users/willy/pagecache
Pull folio conversion updates from Matthew Wilcox:
"Convert much of the page cache to use folios
This stops just short of actually enabling large folios. It converts
everything that I noticed needs to be converted, but there may still
be places I've overlooked which still have page size assumptions.
The big change here is using large entries in the page cache XArray
instead of many small entries. That only affects shmem for now, but
it's a pretty big change for shmem since it changes where memory needs
to be allocated (at split time instead of insertion)"
* tag 'folio-5.17' of git://git.infradead.org/users/willy/pagecache: (49 commits)
mm: Use multi-index entries in the page cache
XArray: Add xas_advance()
truncate,shmem: Handle truncates that split large folios
truncate: Convert invalidate_inode_pages2_range to folios
fs: Convert vfs_dedupe_file_range_compare to folios
mm: Remove pagevec_remove_exceptionals()
mm: Convert find_lock_entries() to use a folio_batch
filemap: Return only folios from find_get_entries()
filemap: Convert filemap_get_read_batch() to use a folio_batch
filemap: Convert filemap_read() to use a folio
truncate: Add invalidate_complete_folio2()
truncate: Convert invalidate_inode_pages2_range() to use a folio
truncate: Skip known-truncated indices
truncate,shmem: Add truncate_inode_folio()
shmem: Convert part of shmem_undo_range() to use a folio
mm: Add unmap_mapping_folio()
truncate: Add truncate_cleanup_folio()
filemap: Add filemap_release_folio()
filemap: Use a folio in filemap_page_mkwrite
filemap: Use a folio in filemap_map_pages
...
If any downstream device can be a wakeup device, do not turn off the
regulators as the device will need them on.
Link: https://lore.kernel.org/r/20220106160332.2143-8-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This Broadcom STB PCIe RC driver has one port and connects directly to one
device, be it a switch or an endpoint. We want to be able to leverage the
recently added mechanism that allocates and turns on/off subdevice
regulators.
All that needs to be done is to put the regulator DT nodes in the bridge
below host and to set the pci_ops methods add_bus and remove_bus.
Note that the pci_subdev_regulators_add_bus() method is wrapped for two
reasons:
1. To achieve link up after the voltage regulators are turned on.
2. If, in the case of an unsuccessful link up, to redirect any PCIe
accesses to subdevices, e.g. the scan for DEV/ID. This redirection
is needed because the Broadcom PCIe HW will issue a CPU abort if such
an access is made when the link is down.
[bhelgaas: fold in
https://lore.kernel.org/r/20220112013100.48029-1-jim2101024@gmail.com]
Link: https://lore.kernel.org/r/20220106160332.2143-7-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add a mechanism to identify standard PCIe regulators in the DT, allocate
them, and turn them on before the rest of the bus is scanned during
pci_host_probe().
The allocated structure that contains the regulators is stored in the port
driver dev.driver_data field. Here is a point-by-point of how and when
this mechanism is activated:
If:
-- PCIe RC driver sets pci_ops {add,remove)_bus to
pci_subdev_regulators_{add,remove}_bus during its probe.
-- There is a DT node "RB" under the host bridge DT node.
-- During the RC driver's pci_host_probe() the add_bus callback
is invoked where (bus->parent && pci_is_root_bus(bus->parent)
is true
Then:
-- A struct subdev_regulators structure will be allocated and
assigned to bus->dev.driver_data.
-- regulator_bulk_{get,enable} will be invoked on &bus->dev
and the former will search for and process any
vpcie{12v,3v3,3v3aux}-supply properties that reside in node "RB".
-- The regulators will be turned off/on for any unbind/bind operations.
-- The regulators will be turned off/on for any suspend/resumes, but
only if the RC driver handles this on its own. This will appear
in a later commit for the pcie-brcmstb.c driver.
The unabridged reason for doing this is as follows. We would like the
Broadcom STB PCIe root complex driver (and others) to be able to turn
off/on regulators[1] that provide power to endpoint[2] devices. Typically,
the drivers of these endpoint devices are stock Linux drivers that are not
aware that these regulator(s) exist and must be turned on for the driver to
be probed. The simple solution of course is to turn these regulators on at
boot and keep them on. However, this solution does not satisfy at least
three of our usage modes:
1. For example, one customer uses multiple PCIe controllers, but wants
the ability to, by script invoking and unbind, turn any or all of them
and their subdevices off to save power, e.g. when in battery mode.
2. Another example is when a watchdog script discovers that an endpoint
device is in an unresponsive state and would like to unbind, power
toggle, and re-bind just the PCIe endpoint and controller.
3. Of course we also want power turned off during suspend mode. However,
some endpoint devices may be able to "wake" during suspend and we need
to recognise this case and veto the nominal act of turning off its
regulator. Such is the case with Wake-on-LAN and Wake-on-WLAN support
where the PCIe endpoint device needs to be kept powered on in order to
receive network packets and wake the system.
In all of these cases it is advantageous for the PCIe controller to govern
the turning off/on the regulators needed by the endpoint device. The first
two cases can be done by simply unbinding and binding the PCIe controller,
if the controller has control of these regulators.
[1] These regulators typically govern the actual power supply to the
endpoint chip. Sometimes they may be the official PCIe socket
power -- such as 3.3v or aux-3.3v. Sometimes they are truly
the regulator(s) that supply power to the EP chip.
[2] The 99% configuration of our boards is a single endpoint device
attached to the PCIe controller. I use the term endpoint but it could
possibly mean a switch as well.
Link: https://lore.kernel.org/r/20220106160332.2143-6-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
We need to take some code in brcm_pcie_setup() and put it in a new function
brcm_pcie_linkup(). In future commits the brcm_pcie_linkup() function will
be called indirectly by pci_host_probe() as opposed to the host driver
invoking it directly.
Some code that was executed after the PCIe linkup is now placed so that it
executes prior to linkup, since this code has to run prior to the
invocation of pci_host_probe().
Link: https://lore.kernel.org/r/20220106160332.2143-5-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add bindings for Brcmstb EP voltage regulators. A new mechanism is to be
added to the Linux PCI subsystem that will allocate and turn on/off
regulators. These are standard regulators -- vpcie12v, vpcie3v3, and
vpcie3v3aux -- placed in the DT in the bridge node under the host bridge
device.
The use of a regulator property in the PCIe EP subnode such as
"vpcie12v-supply" depends on a pending pullreq to the pci-bus.yaml
file at
https://github.com/devicetree-org/dt-schema/pull/63
Link: https://lore.kernel.org/r/20220106160332.2143-4-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
The "pcie" and "msi" interrupts were given the same interrupt when they are
actually different. Interrupt-map only had the INTA entry; add the INTB,
INTC, and INTD entries.
Link: https://lore.kernel.org/r/20220106160332.2143-3-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Do at least a dev_err() on some calls to reset_control_rearm() and
brcm_phy_stop(). In some cases it may not make sense to return this error
value "above" as doing so will cause more trouble than is warranted.
Link: https://lore.kernel.org/r/20220106160332.2143-2-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Define the legacy MSI interrupt bitmask as well as the non-legacy interrupt
bitmask using GENMASK and then use them in brcm_msi_set_regs() in place of
__GENMASK().
Link: https://lore.kernel.org/r/20211122190459.3189616-1-f.fainelli@gmail.com
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
The 'used' field of 'struct brcm_msi' is used as a bitmap. Declare it with
DECLARE_BITMAP() and adjust users accordingly.
This fixes a harmless Coverity warning about array vs singleton usage.
This bitmap can be used for either legacy or MSI interrupts, which require
a size of BRCM_INT_PCI_MSI_LEGACY_NR or BRCM_INT_PCI_MSI_NR respectively.
Add a BUILD_BUG_ON() to ensure it is large enough.
Suggested-by: Krzysztof Wilczynski <kw@linux.com>
Addresses-Coverity: "Out-of-bounds access (ARRAY_VS_SINGLETON)"
Link: https://lore.kernel.org/r/e6d9da2112aab2939d1507b90962d07bfd735b4c.1636273671.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Here is a single change that fixes up the description of the LGPL-2.1 or
later identifiers so that the tools properly acknowledge that this is a
valid license.
This change has been in linux-next for weeks with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX/License update from Greg KH:
"Here is a single change that fixes up the description of the 'LGPL-2.1
or later' identifiers so that the tools properly acknowledge that this
is a valid license.
This change has been in linux-next for weeks with no reported problems"
* tag 'spdx-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
Here is the big set of USB and Thunderbolt driver changes for 5.17-rc1.
Nothing major in here, just lots of little updates and cleanups. These
include:
- some USB header fixes picked from Ingo's header-splitup work
- more USB4/Thunderbolt hardware support added
- USB gadget driver updates and additions
- USB typec additions (includes some acpi changes, which were
acked by the ACPI maintainer)
- core USB fixes as found by syzbot that were too late for
5.16-final
- USB dwc3 driver updates
- USB dwc2 driver updates
- platform_get_irq() conversions of some USB drivers
- other minor USB driver updates and additions
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for
5.17-rc1.
Nothing major in here, just lots of little updates and cleanups. These
include:
- some USB header fixes picked from Ingo's header-splitup work
- more USB4/Thunderbolt hardware support added
- USB gadget driver updates and additions
- USB typec additions (includes some acpi changes, which were acked
by the ACPI maintainer)
- core USB fixes as found by syzbot that were too late for 5.16-final
- USB dwc3 driver updates
- USB dwc2 driver updates
- platform_get_irq() conversions of some USB drivers
- other minor USB driver updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (111 commits)
docs: ABI: fixed formatting in configfs-usb-gadget-uac2
usb: gadget: u_audio: Subdevice 0 for capture ctls
usb: gadget: u_audio: fix calculations for small bInterval
usb: dwc2: gadget: initialize max_speed from params
usb: dwc2: do not gate off the hardware if it does not support clock gating
usb: dwc3: qcom: Fix NULL vs IS_ERR checking in dwc3_qcom_probe
headers/deps: USB: Optimize <linux/usb/ch9.h> dependencies, remove <linux/device.h>
USB: common: debug: add needed kernel.h include
headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c
headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h
headers/prep: usb: gadget: Fix namespace collision
USB: core: Fix bug in resuming hub's handling of wakeup requests
USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
usb: dwc3: dwc3-qcom: Add missing platform_device_put() in dwc3_qcom_acpi_register_core
usb: gadget: clear related members when goto fail
usb: gadget: don't release an existing dev->buf
usb: dwc2: Simplify a bitmap declaration
usb: Remove usb_for_each_port()
usb: typec: port-mapper: Convert to the component framework
usb: Link the ports to the connectors they are attached to
...
Here is the big set of tty/serial driver updates for 5.17-rc1.
Nothing major in here, just lots of good updates and fixes, including:
- more tty core cleanups from Jiri as well as mxser driver
cleanups. This is the majority of the core diffstat
- tty documentation updates from Jiri
- platform_get_irq() updates
- various serial driver updates for new features and hardware
- fifo usage for 8250 console, reducing cpu load a lot
- LED fix for keyboards, long-time bugfix that went through many
revisions
- minor cleanups
All have been in linux-next for a while with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.17-rc1' of 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 for 5.17-rc1.
Nothing major in here, just lots of good updates and fixes, including:
- more tty core cleanups from Jiri as well as mxser driver cleanups.
This is the majority of the core diffstat
- tty documentation updates from Jiri
- platform_get_irq() updates
- various serial driver updates for new features and hardware
- fifo usage for 8250 console, reducing cpu load a lot
- LED fix for keyboards, long-time bugfix that went through many
revisions
- minor cleanups
All have been in linux-next for a while with no reported problems"
* tag 'tty-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits)
serial: core: Keep mctrl register state and cached copy in sync
serial: stm32: correct loop for dma error handling
serial: stm32: fix flow control transfer in DMA mode
serial: stm32: rework TX DMA state condition
serial: stm32: move tx dma terminate DMA to shutdown
serial: pl011: Drop redundant DTR/RTS preservation on close/open
serial: pl011: Drop CR register reset on set_termios
serial: pl010: Drop CR register reset on set_termios
serial: liteuart: fix MODULE_ALIAS
serial: 8250_bcm7271: Fix return error code in case of dma_alloc_coherent() failure
Revert "serdev: BREAK/FRAME/PARITY/OVERRUN notification prototype V2"
tty: goldfish: Use platform_get_irq() to get the interrupt
serdev: BREAK/FRAME/PARITY/OVERRUN notification prototype V2
tty: serial: meson: Drop the legacy compatible strings and clock code
serial: pmac_zilog: Use platform_get_irq() to get the interrupt
serial: bcm63xx: Use platform_get_irq() to get the interrupt
serial: ar933x: Use platform_get_irq() to get the interrupt
serial: vt8500: Use platform_get_irq() to get the interrupt
serial: altera_jtaguart: Use platform_get_irq_optional() to get the interrupt
serial: pxa: Use platform_get_irq() to get the interrupt
...
Here's the big set of staging driver updates for 5.17-rc1
Nothing major in here at all, just lots and lots of tiny cleanups.
Overall more code was removed than added, which is always nice, but
not a huge change.
Majority of the work happened in the r8188eu driver, that had hundreds
of cleanups happen on it, but almost all other staging drivers had
cleanups as well. No new functionality was added, cleanups only.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big set of staging driver updates for 5.17-rc1
Nothing major in here at all, just lots and lots of tiny cleanups.
Overall more code was removed than added, which is always nice, but
not a huge change.
Majority of the work happened in the r8188eu driver, that had hundreds
of cleanups happen on it, but almost all other staging drivers had
cleanups as well. No new functionality was added, cleanups only.
All of these have been in linux-next for a while with no reported
problems"
* tag 'staging-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (308 commits)
staging: r8188eu: rename camelcase variable uintPeerChannel
staging: r8188eu: make BW20_24G_Diff a 1-D array
staging: r8188eu: make OFDM_24G_Diff a 1-D array
staging: r8188eu: BW40_24G_Diff is set but not used
staging: r8188eu: CCK_24G_Diff is set but not used
staging: r8188eu: make Index24G_BW40_Base a 1-D array
staging: r8188eu: make Index24G_CCK_Base a 1-D array
staging: r8188eu: rfPath is always 0
staging: r8188eu: remove unneeded parameter from rtl8188e_SetHalODMVar
staging: pi433: add comment to rx_lock mutex definition
staging: pi433: fix frequency deviation check
staging: vc04_services: rename BM2835 to BCM2835 in headers comments
staging: vc04_services: rename string literal containing bm2835_* to bcm2835*_
staging: vc04_services: rename variables containing bm2835_* to bcm2835_*
staging: vc04_services: rename functions containing bm2835_* to bcm2835_*
staging: vc04_services: rename structures bm2835_mmal_dev and bm2835_mmal_v4l2_ctrl
staging: greybus: audio: Check null pointer
staging: r8188eu: add spaces around P2P_AP_P2P_CH_SWITCH_PROCESS_WK
staging: r8188eu: turbo scan is always off for r8188eu
staging: r8188eu: cmd_issued_cnt is set but not used
...
Here is the set of changes for the driver core for 5.17-rc1.
Lots of little things here, including:
- kobj_type cleanups
- auxiliary_bus documentation updates
- auxiliary_device conversions for some drivers (relevant
subsystems all have provided acks for these)
- kernfs lock contention reduction for some workloads
- other tiny cleanups and changes.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of changes for the driver core for 5.17-rc1.
Lots of little things here, including:
- kobj_type cleanups
- auxiliary_bus documentation updates
- auxiliary_device conversions for some drivers (relevant subsystems
all have provided acks for these)
- kernfs lock contention reduction for some workloads
- other tiny cleanups and changes.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (43 commits)
kobject documentation: remove default_attrs information
drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
debugfs: lockdown: Allow reading debugfs files that are not world readable
driver core: Make bus notifiers in right order in really_probe()
driver core: Move driver_sysfs_remove() after driver_sysfs_add()
firmware: edd: remove empty default_attrs array
firmware: dmi-sysfs: use default_groups in kobj_type
qemu_fw_cfg: use default_groups in kobj_type
firmware: memmap: use default_groups in kobj_type
sh: sq: use default_groups in kobj_type
headers/uninline: Uninline single-use function: kobject_has_children()
devtmpfs: mount with noexec and nosuid
driver core: Simplify async probe test code by using ktime_ms_delta()
nilfs2: use default_groups in kobj_type
kobject: remove kset from struct kset_uevent_ops callbacks
driver core: make kobj_type constant.
driver core: platform: document registration-failure requirement
vdpa/mlx5: Use auxiliary_device driver data helpers
net/mlx5e: Use auxiliary_device driver data helpers
soundwire: intel: Use auxiliary_device driver data helpers
...
Core changes:
- New standard enumerator and corresponding device tree bindings
for output impedance pin configuration. (Implemented and used
in the Renesas rzg2l driver.)
- Cleanup of Kconfig and Makefile to be somewhat orderly and
alphabetic.
New drivers:
- Samsung Exynos 7885 pin controller.
- Ocelot LAN966x pin controller.
- Qualcomm SDX65 pin controller.
- Qualcomm SM8450 pin controller.
- Qualcomm PM8019, PM8226 and PM2250 pin controllers.
- NXP/Freescale i.MXRT1050 pin controller.
- Intel Thunder Bay pin controller.
Enhancements:
- Introduction of the string library helper function
"kasprintf_strarray()" and subsequent use in Rockchip, ST and
Armada pin control drivers, as well as the GPIO mockup driver.
- The Ocelot pin controller has been extensively rewritten to
use regmap and other modern kernel infrastructure.
- The Microchip SGPIO driver has been converted to use regmap.
- The SPEAr driver had been converted to use regmap.
- Substantial cleanups and janitorial on the Apple pin control
driver that was merged for v5.16.
- Janitorial to remove of_node assignments in the GPIO portions
that anyway get this handled in the GPIO core.
- Minor cleanups and improvements in several pin controllers.
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Merge tag 'pinctrl-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control bulk updates from Linus Walleij:
"Core changes:
- New standard enumerator and corresponding device tree bindings for
output impedance pin configuration. (Implemented and used in the
Renesas rzg2l driver.)
- Cleanup of Kconfig and Makefile to be somewhat orderly and
alphabetic.
New drivers:
- Samsung Exynos 7885 pin controller.
- Ocelot LAN966x pin controller.
- Qualcomm SDX65 pin controller.
- Qualcomm SM8450 pin controller.
- Qualcomm PM8019, PM8226 and PM2250 pin controllers.
- NXP/Freescale i.MXRT1050 pin controller.
- Intel Thunder Bay pin controller.
Enhancements:
- Introduction of the string library helper function
"kasprintf_strarray()" and subsequent use in Rockchip, ST and
Armada pin control drivers, as well as the GPIO mockup driver.
- The Ocelot pin controller has been extensively rewritten to use
regmap and other modern kernel infrastructure.
- The Microchip SGPIO driver has been converted to use regmap.
- The SPEAr driver had been converted to use regmap.
- Substantial cleanups and janitorial on the Apple pin control driver
that was merged for v5.16.
- Janitorial to remove of_node assignments in the GPIO portions that
anyway get this handled in the GPIO core.
- Minor cleanups and improvements in several pin controllers"
* tag 'pinctrl-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (98 commits)
pinctrl: imx: fix assigning groups names
dt-bindings: pinctrl: mt8195: add wrapping node of pin configurations
pinctrl: bcm: ns: use generic groups & functions helpers
pinctrl: imx: fix allocation result check
pinctrl: samsung: Use platform_get_irq_optional() to get the interrupt
pinctrl: Propagate firmware node from a parent device
dt-bindings: pinctrl: qcom: Add SDX65 pinctrl bindings
pinctrl: add one more "const" for generic function groups
pinctrl: keembay: rework loops looking for groups names
pinctrl: keembay: comment process of building functions a bit
pinctrl: imx: prepare for making "group_names" in "function_desc" const
ARM: dts: gpio-ranges property is now required
pinctrl: aspeed: fix unmet dependencies on MFD_SYSCON for PINCTRL_ASPEED
pinctrl: Get rid of duplicate of_node assignment in the drivers
pinctrl-sunxi: don't call pinctrl_gpio_direction()
pinctrl-bcm2835: don't call pinctrl_gpio_direction()
pinctrl: bcm2835: Silence uninit warning
pinctrl: Sort Kconfig and Makefile entries alphabetically
pinctrl: Add Intel Thunder Bay pinctrl driver
dt-bindings: pinctrl: Add bindings for Intel Thunderbay pinctrl driver
...
Commit a5d3d1adc9 ("leds: lp55xx: Initialize enable GPIO direction to
output") attempts to fix this, but the fix did not work since at least
for the Nokia N900 the value needs to be set to HIGH, per the device
tree. So rather than hardcoding the value to a potentially invalid value
for some devices, let's set direction in lp55xx_init_device.
Fixes: a5d3d1adc9 ("leds: lp55xx: Initialize enable GPIO direction to output")
Fixes: 92a81562e6 ("leds: lp55xx: Add multicolor framework support to lp55xx")
Fixes: ac219bf3c9 ("leds: lp55xx: Convert to use GPIO descriptors")
Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Since the LED multicolor framework support was added in commit
92a81562e6 ("leds: lp55xx: Add multicolor framework support to lp55xx")
LEDs on this platform stopped working.
Fixes: 92a81562e6 ("leds: lp55xx: Add multicolor framework support to lp55xx")
Fixes: ac219bf3c9 ("leds: lp55xx: Convert to use GPIO descriptors")
Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
output of dev_of_node() is already assigned to "np" variable in
ktd2692_parse_dt(). Use "np" variable to check if OF node is NULL
instead of calling dev_of_node() again.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
GPIO library does copy the of_node from the parent device of
the GPIO chip, there is no need to repeat this in the individual
drivers. Remove assignment here.
For the details one may look into the of_gpio_dev_init() implementation.
Call graph:
--> sso_gpio_gc_init()
--> devm_gpiochip_add_data
--> devm_gpiochip_add_data_with_key
--> gpiochip_add_data_with_key()
--> of_gpio_dev_init()
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
GPIO library does copy the of_node from the parent device of
the GPIO chip, there is no need to repeat this in the individual
drivers. Remove assignment here.
For the details one may look into the of_gpio_dev_init() implementation.
Call graph:
--> tca6507_probe_gpios()
--> gpiochip_add_data()
--> gpiochip_add_data_with_key()
--> of_gpio_dev_init()
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
