kernel/linux.git/drivers/base/regmap, branch master

Merge tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

2026-04-24T19:11:26+00:00

Pull regmap fixes from Mark Brown: "There's couple of patches here that came in since my pull request: - What is effectively a quirk for shoehorning support for a wider range of I2C regmaps on weirdly restricted SMBus controllers - One minor fix for a memory leak on in error handling in the dummy driver used by the KUnit tests" * tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: ram: fix memory leaks in __regmap_init_ram() on error regmap-i2c: add SMBus byte/word reg16 bus for adapters lacking I2C_FUNC_I2C

Merge tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2026-04-24T18:49:20+00:00

Pull sound fixes from Takashi Iwai: "Here are the rest of small updates for 7.1-rc1. All small fixes mostly for device-specific issues or regressions. Core: - Fix a potential data race in fasync handling USB-audio: - New device support: Line6 POD HD PRO, NexiGo N930W webcam - Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample rates - Limit UAC2 rate parsing to prevent potential overflows HD-Audio: - Device-specific quirks for HP, Acer, and Honor laptops - Fix for TAS2781 SPI device abnormal sound - Move Intel firmware loading into probe work to avoid stalling ASoC: - New support for TI TAS5832 - Fixes for SoundWire SDCA/DisCo boolean parsing - Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx Misc: - Fixes for resource leaks and data races in 6fire, caiaq, als4000, and pcmtest drivers" * tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (41 commits) Revert "ALSA: pcmtest: fix reference leak on failed device registration" ASoC: tas2781: Add tas5832 support ASoC: dt-bindings: ti,tas2781: Add TAS5832 support ALSA: usb-audio: Fix Audio Advantage Micro II SPDIF switch ALSA: usb-audio: Avoid false E-MU sample-rate notifications ASoC: sdw_utils: cs42l43: allow spk component names to be combined ASoC: qcom: x1e80100: limit speaker volumes ALSA: hda/realtek - Add mute LED support for HP Victus 15-fa2xxx ALSA: pcmtest: Fix resource leaks in module init error paths ALSA: usb-audio/line6: Add support for POD HD PRO ALSA: hda/realtek: Add LED fixup for HP EliteBook 6 G2a Laptops ASoC: SDCA: Fix reading of mipi-sdca-control-deferrable regmap: sdw-mbq: Allow defers on undeferrable controls Revert "ALSA: usb-audio: Add quirk for SmartlinkTechnology M01" ALSA: als4000: Fix capture trigger chip->mode race ALSA: core: Fix potential data race at fasync handling ALSA: hda/tas2781: Fix sound abnormal issue on some SPI device ALSA: hda/realtek: add quirk for Acer Nitro 16 AN16-41 ALSA: caiaq: Fix control_put() result and cache rollback ALSA: pcmtest: fix reference leak on failed device registration ...

regmap: sdw-mbq: Allow defers on undeferrable controls

2026-04-20T17:40:02+00:00

It is a fairly common DisCo issue to have the deferrability of controls marked incorrectly and Windows seems very permissive in this regard. As there isn't really any down side to trying a defer even if the control isn't deferrable, allow this but add a warning message. Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20260413124621.1345315-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

regmap: ram: fix memory leaks in __regmap_init_ram() on error

2026-04-17T11:07:31+00:00

Two allocations in __regmap_init_ram() are not cleaned up on failure. If the kzalloc_objs() for data->written fails, data->read is returned with no way for the caller to free it. If __regmap_init() fails, neither data->read nor data->written is freed because its error paths do not call bus->free_context() (which is regmap_ram_free_context() here). Only regmap_exit() does, and that is never reached on an init failure. Free the allocated arrays before returning any error. Fixes: f6352424e37e ("regmap: Add RAM backed register map") Signed-off-by: Yuho Choi Link: https://patch.msgid.link/20260416235630.78408-1-dbgh9129@gmail.com Signed-off-by: Mark Brown

Merge tag 'regmap-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

2026-04-15T21:27:51+00:00

Pull regmap updates from Mark Brown: "This has been quite a busy release for regmap, the user visible changes are quite minor but there's some quite good work on internal code improvements: - Cleanup helper for __free()ing regmap_fields - Support non-devm I3C regmaps - A bunch of cleanup work, mostly from Andy Shevchenko - Fix for bootstrapping issues with hardware initialised regmaps, which was the main inspiration for some of the cleanups" * tag 'regmap-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: i3c: Add non-devm regmap_init_i3c() helper regmap: debugfs: fix race condition in dummy name allocation regmap: Synchronize cache for the page selector regmap: Simplify devres handling regcache: Move HW readback after cache initialisation regcache: Allocate and free reg_defaults on the same level regcache: Move count check and cache_bypass assignment to the caller regcache: Factor out regcache_hw_exit() helper regcache: Amend printf() specifiers when printing registers regcache: Define iterator inside for-loop and align their types regmap: define cleanup helper for regmap_field regmap: sort header includes regcache: Split regcache_count_cacheable_registers() helper regcache: Remove duplicate check in regcache_hw_init()

regmap-i2c: add SMBus byte/word reg16 bus for adapters lacking I2C_FUNC_I2C

2026-04-13T17:05:58+00:00

AMD PIIX4 SMBus adapters, present on AMD SP5/EPYC-based platforms (including Cisco 8000 series routers), support SMBUS_BYTE_DATA and SMBUS_WORD_DATA but lack I2C_FUNC_I2C and I2C_FUNC_SMBUS_I2C_BLOCK. When at24 (or any driver) requests a regmap with reg_bits=16 and val_bits=8 on such an adapter, regmap_get_i2c_bus() finds no matching bus and returns -ENOTSUPP. The existing regmap_i2c_smbus_i2c_block_reg16 bus type already implements 16-bit addressed reads using only write_byte_data() + read_byte() primitives, but its selection is gated on I2C_FUNC_SMBUS_I2C_BLOCK which these adapters lack. Add a new regmap_smbus_byte_word_reg16 bus that: READ: reuses regmap_i2c_smbus_i2c_read_reg16() -- sets the 16-bit address via write_byte_data(addr_lo, addr_hi), then reads bytes sequentially via read_byte() (EEPROM auto-increments). Requires only SMBUS_BYTE_DATA. WRITE: uses write_word_data(addr_hi, (data << 8) | addr_lo) to encode one data byte per SMBus WORD transaction. Requires only SMBUS_WORD_DATA. Single-byte writes only. The new bus is selected in regmap_get_i2c_bus() when reg_bits=16, val_bits=8, and the adapter has SMBUS_BYTE_DATA | SMBUS_WORD_DATA but not I2C_FUNC_I2C or SMBUS_I2C_BLOCK. The branch is placed after the existing I2C_BLOCK_reg16 check so adapters with full block support continue to use the faster path. This fixes at24 EEPROM probe failures on PIIX4: at24 3-0055: probe with driver at24 failed with error -524 No driver changes are required -- at24 already passes reg_bits=16 to devm_regmap_init_i2c(), which now succeeds. Signed-off-by: Nishanth Sampath Kumar Link: https://patch.msgid.link/20260407233927.498932-1-nissampa@cisco.com Signed-off-by: Mark Brown

regmap: i3c: Add non-devm regmap_init_i3c() helper

2026-04-10T10:46:15+00:00

Add __regmap_init_i3c() and the corresponding regmap_init_i3c() macro to allow creating a regmap for I3C devices without using the device-managed version. This mirrors the pattern already established for other buses such as I2C, SPI and so on, giving drivers more flexibility when the regmap lifetime is not directly tied to the device. Signed-off-by: Pei Xiao Link: https://patch.msgid.link/a81256a8866b163979a20406abf01df7d7440104.1775788105.git.xiaopei01@kylinos.cn Signed-off-by: Mark Brown

regmap: debugfs: fix race condition in dummy name allocation

2026-04-09T19:50:54+00:00

Use IDA instead of a simple counter for generating unique dummy names. The previous implementation used dummy_index++ which is not atomic, leading to potential duplicate names when multiple threads call regmap_debugfs_init() concurrently with name="dummy". Signed-off-by: Zxyan Zhu Link: https://patch.msgid.link/20260409035015.950764-1-zxyan0222@gmail.com Signed-off-by: Mark Brown

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-04-02T18:03:13+00:00

Cross-merge networking fixes after downstream PR (net-7.0-rc7). Conflicts: net/vmw_vsock/af_vsock.c b18c83388874 ("vsock: initialize child_ns_mode_locked in vsock_net_init()") 0de607dc4fd8 ("vsock: add G2H fallback for CIDs not owned by H2G transport") Adjacent changes: drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c ceee35e5674a ("bnxt_en: Refactor some basic ring setup and adjustment logic") 57cdfe0dc70b ("bnxt_en: Resize RSS contexts on channel count change") drivers/net/wireless/intel/iwlwifi/mld/mac80211.c 4d56037a02bd ("wifi: iwlwifi: mld: block EMLSR during TDLS connections") 687a95d204e7 ("wifi: iwlwifi: mld: correctly set wifi generation data") drivers/net/wireless/intel/iwlwifi/mld/scan.h b6045c899e37 ("wifi: iwlwifi: mld: Refactor scan command handling") ec66ec6a5a8f ("wifi: iwlwifi: mld: Fix MLO scan timing") drivers/net/wireless/intel/iwlwifi/mvm/fw.c 078df640ef05 ("wifi: iwlwifi: mld: add support for iwl_mcc_allowed_ap_type_cmd v 2") 323156c3541e ("wifi: iwlwifi: mvm: don't send a 6E related command when not supported") Signed-off-by: Jakub Kicinski

regmap: mdio: make it depend on PHYLIB

2026-03-19T01:27:12+00:00

MDIO-based regmap is the last user of config symbol MDIO_BUS. MDIO access needs a MII bus, which requires PHYLIB for the provider part. Therefore make REGMAP_MDIO depend on PHYLIB, what allows to remove config symbol MDIO_BUS in a follow-up patch. Note: After c5a219395b4e ("regmap: Move selecting for REGMAP_MDIO and REGMAP_IRQ") switching to "depends on" should be fine, w/o risk of a circular dependency. Signed-off-by: Heiner Kallweit Acked-by: Mark Brown Link: https://patch.msgid.link/a21a3b3e-272e-4c61-986e-48a2cb3421d9@gmail.com Signed-off-by: Jakub Kicinski