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2023-10-28ubi: fastmap: may_reserve_for_fm: Don't reserve PEB if fm_anchor existsZhihao Cheng2-4/+7
This is the part 1 to fix cyclically reusing single fastmap data PEBs. After running fsstress on UBIFS for a while, UBI (16384 blocks, fastmap takes 2 blocks) has an erase block(PEB: 8031) with big erase counter greater than any other pebs: ========================================================= from to count min avg max --------------------------------------------------------- 0 .. 9: 0 0 0 0 10 .. 99: 532 84 92 99 100 .. 999: 15787 100 147 229 1000 .. 9999: 64 4699 4765 4826 10000 .. 99999: 0 0 0 0 100000 .. inf: 1 272935 272935 272935 --------------------------------------------------------- Total : 16384 84 180 272935 Not like fm_anchor, there is no candidate PEBs for fastmap data area, so old fastmap data pebs will be reused after all free pebs are filled into pool/wl_pool: ubi_update_fastmap for (i = 1; i < new_fm->used_blocks; i++) erase_block(ubi, old_fm->e[i]->pnum) new_fm->e[i] = old_fm->e[i] According to wear leveling algorithm, UBI selects one small erase counter PEB from ubi->used and one big erase counter PEB from wl_pool, the reused fastmap data PEB is not in these trees. UBI won't schedule this PEB for wl even it is in ubi->used because wl algorithm expects small erase counter for used PEB. Don't reserve PEB for fastmap in may_reserve_for_fm() if fm_anchor already exists. Otherwise, when UBI is running out of free PEBs, the only one free PEB (pnum < 64) will be skipped and fastmap data will be written on the same old PEB. Fixes: dbb7d2a88d2a ("UBI: Add fastmap core") Link: https://bugzilla.kernel.org/show_bug.cgi?id=217787 Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: Remove unneeded break condition while filling poolsZhihao Cheng1-3/+2
Change pool filling stop condition. Commit d09e9a2bddba ("ubi: fastmap: Fix high cpu usage of ubi_bgt by making sure wl_pool not empty") reserves fastmap data PEBs after filling 1 PEB in wl_pool. Now wait_free_pebs_for_pool() makes enough free PEBs before filling pool, there will still be at least 1 PEB in pool and 1 PEB in wl_pool after doing ubi_refill_pools(). Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: Wait until there are enough free PEBs before filling poolsZhihao Cheng5-16/+65
Wait until there are enough free PEBs before filling pool/wl_pool, sometimes erase_worker is not scheduled in time, which causes two situations: A. There are few PEBs filled in pool, which makes ubi_update_fastmap is frequently called and leads first 64 PEBs are erased more times than other PEBs. So waiting free PEBs before filling pool reduces fastmap updating frequency and prolongs flash service life. B. In situation that space is nearly running out, ubi_refill_pools() cannot make sure pool and wl_pool are filled with free PEBs, caused by the delay of erase_worker. After this patch applied, there must exist free PEBs in pool after one call of ubi_update_fastmap. Besides, this patch is a preparetion for fixing large erase counter in fastmap data block and fixing lapsed wear leveling for first 64 PEBs. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217787 Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: Use free pebs reserved for bad block handlingZhihao Cheng1-11/+5
If new bad PEBs occur, UBI firstly consumes ubi->beb_rsvd_pebs, and then ubi->avail_pebs, finally UBI becomes read-only if above two items are 0, which means that the amount of PEBs for user volumes is not effected. Besides, UBI reserves count of free PBEs is ubi->beb_rsvd_pebs while filling wl pool or getting free PEBs, but ubi->avail_pebs is not reserved. So ubi->beb_rsvd_pebs and ubi->avail_pebs have nothing to do with the usage of free PEBs, UBI can use all free PEBs. Commit 78d6d497a648 ("UBI: Move fastmap specific functions out of wl.c") has removed beb_rsvd_pebs checking while filling pool. Now, don't reserve ubi->beb_rsvd_pebs while filling wl_pool. This will fill more PEBs in pool and also reduce fastmap updating frequency. Also remove beb_rsvd_pebs checking in ubi_wl_get_fm_peb. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217787 Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: Replace erase_block() with sync_erase()Zhihao Cheng3-51/+7
Since erase_block() has same logic with sync_erase(), just replace it with sync_erase(), also rename 'sync_erase()' to 'ubi_sync_erase()'. Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: Allocate memory with GFP_NOFS in ubi_update_fastmapZhihao Cheng1-5/+5
Function ubi_update_fastmap could be called in IO context, for example: ubifs_writepage do_writepage ubifs_jnl_write_data write_head ubifs_wbuf_write_nolock ubifs_leb_write ubi_leb_write ubi_eba_write_leb try_write_vid_and_data ubi_wl_get_peb ubi_update_fastmap erase_block So it's better to allocate memory with GFP_NOFS mode, in case waiting page writeback(dead loop). Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: erase_block: Get erase counter from wl_entry rather than flashZhihao Cheng1-18/+9
Just like sync_erase() does, getting erase counter from wl_entry is faster than reading from flash. Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28ubi: fastmap: Fix missed ec updating after erasing old fastmap data blockZhihao Cheng1-10/+15
After running fsstress on ubifs for a long time, UBI(16384 blocks, fastmap takes 2 blocks) has an erase block with different erase counters displayed from two views: From ubiscan view: PEB 8031 has erase counter 31581 ========================================================= from to count min avg max --------------------------------------------------------- 0 .. 9: 0 0 0 0 10 .. 99: 0 0 0 0 100 .. 999: 16383 290 315 781 1000 .. 9999: 0 0 0 0 10000 .. 99999: 1 31581 31581 31581 100000 .. inf: 0 0 0 0 --------------------------------------------------------- Total : 16384 290 317 31581 From detailed_erase_block_info view: PEB 8031 has erase counter 7 physical_block_number erase_count 8030 421 8031 7 # mem info is different from disk info 8032 434 8033 425 8034 431 Following process missed updating erase counter in wl_entry(in memory): ubi_update_fastmap for (i = 1; i < new_fm->used_blocks; i++) // update fastmap data if (!tmp_e) if (old_fm && old_fm->e[i]) erase_block(ubi, old_fm->e[i]->pnum) ret = ubi_io_sync_erase(ubi, pnum, 0) ec = be64_to_cpu(ec_hdr->ec) ec += ret ec_hdr->ec = cpu_to_be64(ec) ubi_io_write_ec_hdr(ubi, pnum, ec_hdr) // ec is updated on flash // ec is not updated in old_fm->e[i] (in memory) Fix it by passing wl_enter into erase_block() and updating erase counter in erase_block(). Fixes: dbb7d2a88d2a ("UBI: Add fastmap core") Signed-off-by: Zhihao Cheng <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2023-10-28Merge branch 'pci/misc'Bjorn Helgaas5-13/+14
- Prevent xHCI driver from claiming AMD VanGogh USB3 DRD device so dwc3 can claim it instead (Vicki Pfau) - Make pci_assign_unassigned_resources() non-init because sparc uses it after init-time (Randy Dunlap) - Remove logic_outb(), _outw(), outl() duplicate declarations (John Sanpe) - Remove unnecessary UTF-8 in Kconfig help text that confuses menuconfig (Liu Song) - Fix double free in __pci_epc_create() (Dan Carpenter) - Simplify pcie_capability_clear_and_set_word() cases that could be pcie_capability_clear_word() (Ilpo Järvinen) * pci/misc: PCI: Simplify pcie_capability_clear_and_set_word() to ..._clear_word() PCI: endpoint: Fix double free in __pci_epc_create() PCI: Replace unnecessary UTF-8 in Kconfig logic_pio: Remove logic_outb(), _outw(), outl() duplicate declarations PCI: Make pci_assign_unassigned_resources() non-init PCI: Prevent xHCI driver from claiming AMD VanGogh USB3 DRD device
2023-10-28Merge branch 'pci/field-get'Bjorn Helgaas18-91/+112
- Use FIELD_GET()/FIELD_PREP() when possible throughout drivers/pci/ (Ilpo Järvinen, Bjorn Helgaas) - Rework DPC control programming for clarity (Ilpo Järvinen) * pci/field-get: PCI/portdrv: Use FIELD_GET() PCI/VC: Use FIELD_GET() PCI/PTM: Use FIELD_GET() PCI/PME: Use FIELD_GET() PCI/ATS: Use FIELD_GET() PCI/ATS: Show PASID Capability register width in bitmasks PCI: Use FIELD_GET() in Sapphire RX 5600 XT Pulse quirk PCI: Use FIELD_GET() PCI/MSI: Use FIELD_GET/PREP() PCI/DPC: Use defines with DPC reason fields PCI/DPC: Use defined fields with DPC_CTL register PCI/DPC: Use FIELD_GET() PCI: hotplug: Use FIELD_GET/PREP() PCI: dwc: Use FIELD_GET/PREP() PCI: cadence: Use FIELD_GET() PCI: Use FIELD_GET() to extract Link Width PCI: mvebu: Use FIELD_PREP() with Link Width PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields # Conflicts: # drivers/pci/controller/dwc/pcie-tegra194.c
2023-10-28Merge branch 'pci/config-errs'Bjorn Helgaas6-25/+35
- Simplify config accessor error checking (Ilpo Järvinen) * pci/config-errs: scsi: ipr: Do PCI error checks on own line PCI: xgene: Do PCI error check on own line & keep return value PCI: Do error check on own line to split long "if" conditions atm: iphase: Do PCI error checks on own line sh: pci: Do PCI error check on own line alpha: Streamline convoluted PCI error handling
2023-10-28Merge branch 'pci/controller/xilinx-xdma'Bjorn Helgaas5-31/+864
- Move Xilinx IRQ definitions to a common header shared by pcie-xilinx-cpm and xilinx-xdma (Thippeswamy Havalige) - Add Xilinx XDMA driver and DT schema (Thippeswamy Havalige) * pci/controller/xilinx-xdma: PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver dt-bindings: PCI: xilinx-xdma: Add schemas for Xilinx XDMA PCIe Root Port Bridge PCI: xilinx-cpm: Move IRQ definitions to a common header
2023-10-28Merge branch 'pci/controller/xilinx-ecam'Bjorn Helgaas1-15/+3
- Drop xilinx-nwl updates of bridge bus number fields, since PCI core already does that (Thippeswamy Havalige) - Update xilinx-nwl driver and ECAM size in devicetree example to allow up to 256 buses (Thippeswamy Havalige) * pci/controller/xilinx-ecam: PCI: xilinx-nwl: Modify ECAM size to enable support for 256 buses PCI: xilinx-nwl: Rename the NWL_ECAM_VALUE_DEFAULT macro dt-bindings: PCI: xilinx-nwl: Modify ECAM size in the DT example PCI: xilinx-nwl: Remove redundant code that sets Type 1 header fields
2023-10-28Merge branch 'pci/controller/vmd'Bjorn Helgaas1-4/+1
- Fix space/tab whitespace issue (Xinghui Li) * pci/controller/vmd: PCI: vmd: Fix inconsistent indentation in vmd_resume()
2023-10-28Merge branch 'pci/controller/speed'Bjorn Helgaas3-45/+14
- Use PCIE_SPEED2MBS_ENC() macro in qcom host and endpoint to encode link speed instead of hard-coding the link speed in MBps (Manivannan Sadhasivam) - Use Mbps_to_icc() (not MBps_to_icc()) in tegra194 instead of explicitly doing the bytes-to-bits conversion (Manivannan Sadhasivam) * pci/controller/speed: PCI: tegra194: Use Mbps_to_icc() macro for setting icc speed PCI: qcom-ep: Use PCIE_SPEED2MBS_ENC() macro for encoding link speed PCI: qcom: Use PCIE_SPEED2MBS_ENC() macro for encoding link speed
2023-10-28Merge branch 'pci/controller/rcar'Bjorn Helgaas9-63/+658
- Add generic T_PVPERL macro for the required interval between power being stable and PERST# being inactive (Yoshihiro Shimoda) - Factor out dw_pcie_link_set_max_link_width() (Yoshihiro Shimoda) - Update PCI_EXP_LNKCAP_MLW so Link Capabilities shows the correct max link width (Yoshihiro Shimoda) - Drop tegra194 PCI_EXP_LNKCAP_MLW setting since dw_pcie_setup() already does it (Yoshihiro Shimoda) - Add dwc support for different dbi and dbi2 register offsets, to be used for R-Car Gen4 controllers (Yoshihiro Shimoda) - Add EDMA_UNROLL capability flag for R-Car Gen4 controllers that don't correctly advertise unrolled mapping via their eDMA CTRL register (Yoshihiro Shimoda) - Export dw_pcie_ep_exit() for use by the modular R-Car Gen4 driver (Yoshihiro Shimoda) - Add .pre_init() and .deinit() hooks for use by R-Car Gen4 controllers (Yoshihiro Shimoda) - Increase snps,dw-pcie DT reg and reg-names maxItems for R-Car Gen4 controllers (Yoshihiro Shimoda) - Add rcar-gen4-pci host and endpoint DT bindings and drivers (Yoshihiro Shimoda) - Add Renesas R8A779F0 Device ID to pci_endpoint_test to allow testing on R-Car S4-8 (Yoshihiro Shimoda) * pci/controller/rcar: misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4 PCI: rcar-gen4: Add endpoint mode support PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host dt-bindings: PCI: dwc: Update maxItems of reg and reg-names PCI: dwc: endpoint: Introduce .pre_init() and .deinit() PCI: dwc: Expose dw_pcie_write_dbi2() to module PCI: dwc: Expose dw_pcie_ep_exit() to module PCI: dwc: Add EDMA_UNROLL capability flag PCI: dwc: endpoint: Add multiple PFs support for dbi2 PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling PCI: dwc: Add dw_pcie_link_set_max_link_width() PCI: Add T_PVPERL macro
2023-10-28Merge branch 'pci/controller/qcom-ep'Bjorn Helgaas1-0/+17
- Add qcom-ep callback to write DBI2 registers (Manivannan Sadhasivam) * pci/controller/qcom-ep: PCI: qcom-ep: Add dedicated callback for writing to DBI2 registers
2023-10-28Merge branch 'pci/controller/layerscape'Bjorn Helgaas1-0/+2
- Set 64-bit DMA mask for layerscape-ep (Guanhua Gao) * pci/controller/layerscape: PCI: layerscape-ep: Set 64-bit DMA mask
2023-10-28Merge branch 'pci/controller/hyperv'Bjorn Helgaas1-1/+1
- Annotate struct hv_dr_state with __counted_by to prepare for array access bounds checking (Kees Cook) * pci/controller/hyperv: PCI: hv: Annotate struct hv_dr_state with __counted_by
2023-10-28Merge branch 'pci/controller/cadence'Bjorn Helgaas1-5/+0
- Drop unused struct cdns_plat_pcie.is_rc member (Li Chen) * pci/controller/cadence: PCI: cadence: Drop unused member from struct cdns_plat_pcie
2023-10-28Merge branch 'pci/controller/aspm'Bjorn Helgaas3-0/+32
- Add a dwc .host_post_init() callback for configuration after downstream devices are scanned (Manivannan Sadhasivam) - Enable ASPM for devices below qcom 1.9.0 host controllers (Manivannan Sadhasivam) * pci/controller/aspm: PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops PCI: dwc: Add host_post_init() callback
2023-10-28Merge branch 'pci/vga'Bjorn Helgaas4-19/+15
- Add pci_is_vga() helper, which checks for both PCI_CLASS_DISPLAY_VGA and PCI_CLASS_NOT_DEFINED_VGA (which catches ancient devices built before Class Codes were defined) (Sui Jingfeng) - Use the new pci_is_vga() to identify devices for the VGA arbiter, the sysfs "boot_vga" attribute, and the virtio and qxl drivers (SUi Jingfeng) * pci/vga: drm/qxl: Use pci_is_vga() to identify VGA devices drm/virtio: Use pci_is_vga() to identify VGA devices PCI/sysfs: Enable 'boot_vga' attribute via pci_is_vga() PCI/VGA: Select VGA devices earlier PCI/VGA: Use pci_is_vga() to identify VGA devices PCI: Add pci_is_vga() helper
2023-10-28Merge branch 'pci/reset'Bjorn Helgaas1-0/+12
- Lengthen reset delay for VideoPropulsion Torrent QN16e card, which seems to require longer delay than spec requires (Lukas Wunner) * pci/reset: PCI: Lengthen reset delay for VideoPropulsion Torrent QN16e card
2023-10-28Merge branch 'pci/pm'Bjorn Helgaas2-5/+2
- Protect driver's D3cold preference from being overwritten by user space via sysfs (Lukas Wunner) - Avoid PME from D3hot/D3cold for AMD Rembrandt and Phoenix USB4 to fix wakeup by USB4-attached devices (Mario Limonciello) * pci/pm: x86/PCI: Avoid PME from D3hot/D3cold for AMD Rembrandt and Phoenix USB4 PCI/sysfs: Protect driver's D3cold preference from user space
2023-10-28Merge branch 'pci/p2pdma'Bjorn Helgaas1-2/+1
- Move struct dev_pagemap (a flexible structure) to end of struct pci_p2pdma_pagemap to avoid overwriting things after dev_pagemap (Gustavo A. R. Silva) * pci/p2pdma: PCI/P2PDMA: Remove redundant goto PCI/P2PDMA: Fix undefined behavior bug in struct pci_p2pdma_pagemap
2023-10-28Merge branch 'pci/hotplug'Bjorn Helgaas4-2/+141
- Add driver for Ampere Altra Attention Indicators (D Scott Phillips) * pci/hotplug: PCI: hotplug: Add Ampere Altra Attention Indicator extension driver PCI: acpiphp: Allow built-in drivers for Attention Indicators
2023-10-28Merge branch 'pci/enumeration'Bjorn Helgaas21-87/+93
- Add and use pci_get_base_class() to search for all PCI_BASE_CLASS_DISPLAY devices (Sui Jingfeng) - Fix a vmd check for multi-function devices (Ilpo Järvinen) - Add PCI_HEADER_TYPE_MFD and use it to replace literals (Ilpo Järvinen) - Use acpi_evaluate_dsm_typed() instead of open-coding it (Andy Shevchenko) - Keep .remove() and .probe() callbacks (previously marked __init) in case they're used via sysfs (Uwe Kleine-König) * pci/enumeration: PCI: keystone: Don't discard .probe() callback PCI: keystone: Don't discard .remove() callback PCI: kirin: Don't discard .remove() callback PCI: exynos: Don't discard .remove() callback PCI/ACPI: Use acpi_evaluate_dsm_typed() PCI: Use PCI_HEADER_TYPE_* instead of literals PCI: Add PCI_HEADER_TYPE_MFD definition PCI: vmd: Correct PCI Header Type Register's multi-function check drm/radeon: Use pci_get_base_class() to reduce duplicated code drm/amdgpu: Use pci_get_base_class() to reduce duplicated code drm/nouveau: Use pci_get_base_class() to reduce duplicated code ALSA: hda: Use pci_get_base_class() to reduce duplicated code PCI: Add pci_get_base_class() helper
2023-10-28Merge branch 'pci/endpoint'Bjorn Helgaas1-6/+6
- Use IS_ERR_OR_NULL() helper function instead of open-coding it (Ruan Jinjie) * pci/endpoint: PCI: endpoint: Use IS_ERR_OR_NULL() helper function
2023-10-28Merge branch 'pci/ats'Bjorn Helgaas1-7/+28
- Disable ATS for Intel IPU E2000 A- and B-stepping devices to avoid invalidation message endianness erratum (Bartosz Pawlowski) * pci/ats: PCI: Disable ATS for specific Intel IPU E2000 devices PCI: Extract ATS disabling to a helper function
2023-10-28Merge branch 'pci/aspm'Bjorn Helgaas1-33/+43
* pci/aspm: PCI/ASPM: Fix L1 substate handling in aspm_attr_store_common() Revert "PCI/ASPM: Disable only ASPM_STATE_L1 when driver, disables L1" PCI/ASPM: Convert printk() to pr_*() and add include PCI/ASPM: Remove unnecessary includes PCI/ASPM: Use FIELD_MAX() instead of literals PCI/ASPM: Use time constants PCI/ASPM: Return U32_MAX instead of bit magic construct PCI/ASPM: Use FIELD_GET/PREP() to access PCIe capability fields PCI: Add PCI_L1SS_CTL2 fields
2023-10-28Merge tag 'irq-urgent-2023-10-28' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "Restore unintentionally lost quirk settings in the GIC irqchip driver, which broke certain devices" * tag 'irq-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3-its: Don't override quirk settings with default values
2023-10-28Merge tag 'char-misc-6.6-final' of ↵Linus Torvalds8-61/+69
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some very small driver fixes for 6.6-final that have shown up in the past two weeks. Included in here are: - tiny fastrpc bugfixes for reported errors - nvmem register fixes - iio driver fixes for some reported problems - fpga test fix - MAINTAINERS file update for fpga All of these have been in linux-next this week with no reported problems" * tag 'char-misc-6.6-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: fpga: Fix memory leak for fpga_region_test_class_find() fpga: m10bmc-sec: Change contact for secure update driver fpga: disable KUnit test suites when module support is enabled iio: afe: rescale: Accept only offset channels nvmem: imx: correct nregs for i.MX6ULL nvmem: imx: correct nregs for i.MX6UL nvmem: imx: correct nregs for i.MX6SLL misc: fastrpc: Unmap only if buffer is unmapped from DSP misc: fastrpc: Clean buffers on remote invocation failures misc: fastrpc: Free DMA handles for RPC calls with no arguments misc: fastrpc: Reset metadata buffer to avoid incorrect free iio: exynos-adc: request second interupt only when touchscreen mode is used iio: adc: xilinx-xadc: Correct temperature offset/scale for UltraScale iio: adc: xilinx-xadc: Don't clobber preset voltage/temperature thresholds dt-bindings: iio: add missing reset-gpios constrain
2023-10-28Merge tag 'i2c-for-6.6-rc8' of ↵Linus Torvalds5-7/+11
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Bugfixes for Axxia when it is a target and for PEC handling of stm32f7. Plus, fix an OF node leak pattern in the mux subsystem" * tag 'i2c-for-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: stm32f7: Fix PEC handling in case of SMBUS transfers i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: aspeed: Fix i2c bus hang in slave read
2023-10-28hwmon: (pmbus/max31785) Add delay between bus accessesLakshmi Yadlapati1-21/+167
The MAX31785 has shown erratic behaviour across multiple system designs, unexpectedly clock stretching and NAKing transactions. Experimentation shows that this seems to be triggered by a register access directly back to back with a previous register write. Experimentation also shows that inserting a small delay after register writes makes the issue go away. Use a similar solution to what the max15301 driver does to solve the same problem. Create a custom set of bus read and write functions that make sure that the delay is added. Signed-off-by: Lakshmi Yadlapati <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (ina238) add ina237 supportRichard Leitner1-1/+2
The INA237 "85-V, 16-Bit, Precision Power Monitor With I2C Interface" is basically the same as INA328. Therefore add a corresponding compatible to the driver. According to the datasheet the main difference is the current and power monitoring accuracy: +------------------------+---------------+---------------+ | | INA238 | INA237 | +------------------------+---------------+---------------+ | Offset voltage | +/- 5µV | +/- 50µV | | Offset drift | +/- 0.02µV/°C | +/- 0.02µV/°C | | Gain error | +/- 0.1% | +/- 0.3% | | Gain error drift | +/- 25ppm/°C | +/- 50ppm/°C | | Common mode rejection | 140dB | 120dB | | Power accuracy | 0.7% | 1.6% | +------------------------+---------------+---------------+ As well as the missing DEVICE_ID register at 0x3F, which is currently not in use by the driver. Signed-off-by: Richard Leitner <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (asus-ec-sensors) add ROG Crosshair X670E Gene.Ellie Hermaszewska1-0/+12
Only the temp sensors that I can verify are present. T_Sensor is the temperature reading of a 10kΩ β=3435K NTC thermistor optionally connected to the T_SENSOR header. The other sensors are as found on the X670E Hero. Signed-off-by: Ellie Hermaszewska <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (max31827) handle vref regulatorAntoniu Miclaus1-0/+4
Add missing implementation for the max31827 supply regulator. This is a hardware required property that is not handled. Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (ina3221) Add support for channel summation disableNinad Malwade1-3/+30
The INA3221 allows the Critical alert pin to be controlled by the summation control function. This function adds the single shunt-voltage conversions for the desired channels in order to compare the combined sum to the programmed limit. The Shunt-Voltage Sum Limit register contains the programmed value that is compared to the value in the Shunt-Voltage Sum register in order to determine if the total summed limit is exceeded. If the shunt-voltage sum limit value is exceeded, the Critical alert pin pulls low. For the summation limit to have a meaningful value, we have to use the same shunt-resistor value on all included channels. Unless equal shunt-resistor values are used for each channel, the summation control function cannot be used and it is not enabled by the driver. To address this, add support to disable the summation of specific channels via device tree property "ti,summation-disable". The channel which has this property would be excluded from the calculation of summation control function. For example, summation control function calculates Shunt-Voltage Sum as: - input_shunt_voltage_summation = input_shunt_voltage_channel1 + input_shunt_voltage_channel2 + input_shunt_voltage_channel3 If we want the summation to only use channel1 and channel3, we can add 'ti,summation-disable' property in device tree node for channel2. Then the calculation will skip channel2. - input_shunt_voltage_summation = input_shunt_voltage_channel1 + input_shunt_voltage_channel3 Note that we only want the channel to be skipped for summation control function rather than completely disabled. Therefore, even if we add the property 'ti,summation-disable', the channel is still enabled and functional. Finally, create debugfs entries that display if summation is disabled for each of the channels. Signed-off-by: Rajkumar Kasirajan <[email protected]> Signed-off-by: Ninad Malwade <[email protected]> Co-developed-by: Jon Hunter <[email protected]> Signed-off-by: Jon Hunter <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (pmbus/mpq7932) Add a support for mpq2286 Power Management ICSaravanan Sekar1-1/+12
The MPQ2286 is a programmable, high frequency synchronous buck regulator designed to power a variety of Automotive system peripherals. Single buck converters with hardware monitoring capability is configurable over PMBus interface. Signed-off-by: Saravanan Sekar <[email protected]> Link: https://lore.kernel.org/r/[email protected] [groeck: Updated subject (mpq2286 -> mpq7932)] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (pmbus/core) Add helper macro to define single pmbus regulatorSaravanan Sekar1-0/+15
The bindings for single instance regulator should be named with no instance (e.g., buck not buck0). Introduce a new helper macro to define the single pmbus regulator. Signed-off-by: Saravanan Sekar <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (pmbus/mpq7932) Get page count based on chip infoSaravanan Sekar1-3/+3
Get page count using compatible match to support the series of chipsets which differs in number of regualator/page. Signed-off-by: Saravanan Sekar <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (max31827) Modify conversion wait timeDaniel Matyas1-1/+1
There is nothing in the datasheet indicating that the 1ms error is needed and I didn't encounter any error during testing with 140ms wait time. Signed-off-by: Daniel Matyas <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (max31827) Make code cleanerDaniel Matyas1-69/+54
Used enums and while loops to replace switch for selecting and getting update interval from conversion rate bits. Divided the write_alarm_val function into 2 functions. The new function is more generic: it can be used not only for alarm writes, but for any kind of writes which require the device to be in shutdown mode. Signed-off-by: Daniel Matyas <[email protected]> Link: https://lore.kernel.org/r/[email protected] [groeck: Reverted error return value change (EOPNOTSUPP -> EINVAL)] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (nct6683) Add another customer ID for ASRock X670E TaichiAlexander Koskovich1-0/+3
This value was found on an ASRock X670E Taichi with an NCT6686D chip. Signed-off-by: Alexander Koskovich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (ltc2992) Avoid division by zeroAntoniu Miclaus1-1/+5
Do not allow setting shunt resistor to 0. This results in a division by zero when performing current value computations based on input voltages and connected resistor values. Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (npcm750-pwm) Add an error code check in npcm7xx_en_pwm_fanSu Hui1-0/+2
npcm7xx_pwm_config_set() can return '-ENODEV' for failed. So check the value of 'ret' after calling npcm7xx_pwm_config_set(). Signed-off-by: Su Hui <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (hs3001) remove redundant store on divisionColin Ian King1-1/+1
Currently the local variable hum is being divided by a constant and the results is being re-assigned back to hum before the value is being returned to the caller. The assignment to hum is redundant and can be removed. Cleans up clang scan build warning: drivers/hwmon/hs3001.c:65:9: warning: Although the value stored to 'hum' is used in the enclosing expression, the value is never actually read from 'hum' [deadcode.DeadStores] Signed-off-by: Colin Ian King <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28hwmon: (nct6775) use acpi_dev_hid_uid_match() for matching _HID and _UIDRaag Jadav1-3/+1
Convert manual _UID references to use the standard ACPI helper. Signed-off-by: Raag Jadav <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]>
2023-10-28i2c: i801: Use new helper acpi_use_parent_companionHeiner Kallweit1-1/+1
Use new helper acpi_use_parent_companion to simplify the code. Signed-off-by: Heiner Kallweit <[email protected]> Reviewed-by: Andi Shyti <[email protected]> Signed-off-by: Wolfram Sang <[email protected]>
2023-10-28i2c: core: fix lockdep warning for sparsely nested adapter chainDaniel Mack1-2/+4
When adapters are chained in a sparse manner (with intermediate MFD devices, for instance) the code currently fails to use the correct subclass for the adapter's bus_lock which leads to false-positive lockdep warnings. Fix this by walking the entire pedigree of the device and count all adapters along the way instead of just checking the immediate parent. Signed-off-by: Daniel Mack <[email protected]> Signed-off-by: Wolfram Sang <[email protected]>
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