user/sven/linux.git/include/linux/mtd, branch v6.2.7

mtd: cfi: allow building spi-intel standalone

2023-01-02T11:08:53Z

When MTD or MTD_CFI_GEOMETRY is disabled, the spi-intel driver fails to build, as it includes the shared CFI header: include/linux/mtd/cfi.h:62:2: error: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. [-Werror=cpp] 62 | #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. linux/mtd/spi-nor.h does not actually need to include cfi.h, so remove the inclusion here to fix the warning. This uncovers a missing #include in spi-nor/core.c so add that there to prevent a different build issue. Fixes: e23e5a05d1fd ("mtd: spi-nor: intel-spi: Convert to SPI MEM") Signed-off-by: Arnd Bergmann Reviewed-by: Mika Westerberg Reviewed-by: Tokunori Ikegami Acked-by: Pratyush Yadav Reviewed-by: Tudor Ambarus Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20221220141352.1486360-1-arnd@kernel.org

Merge tag 'spi-nor/for-6.2' into mtd/next

2022-12-05T14:40:59Z

SPI NOR core changes: * Add support for flash reset using the dt reset-gpios property. * Update hwcaps.mask to include 8D-8D-8D read and page program ops when xSPI profile 1.0 table is defined. * Bypass zero erase size in spi_nor_find_best_erase_type(). * Fix select_uniform_erase to skip 0 erase size * Add generic flash driver. If a flash is not found in the flash_info array, fall back to the generic flash driver which is described solely by the flash's SFDP tables. * Fix the number of bytes for the dummy cycles in spi_nor_spimem_check_readop(). * Introduce SPI_NOR_QUAD_PP flag, as PP_1_1_4 is not SFDP discoverable. SPI NOR manufacturer drivers changes: * Spansion: - use PARSE_SFDP for s28hs512t, - add support for s28hl512t, s28hl01gt, and s28hs01gt. * Gigadevice: Replace default_init() with post_bfpt() for gd25q256. * Micron - ST: Enable locking for mt25qu256a. * Winbond: Add support for W25Q512NW-IQ. * ISSI: Use PARSE_SFDP and SPI_NOR_QUAD_PP. Fix merge conflict in the jedec,spi-nor bindings. Signed-off-by: Miquel Raynal

mtd: spi-nor: remember full JEDEC flash ID

2022-11-21T13:37:15Z

At the moment, we print the JEDEC ID that is stored in our database. The generic flash support won't have such an entry in our database. To find out the JEDEC ID later we will have to cache it. There is also another advantage: If the flash is found in the database, the ID could be truncated because the ID of the entry is used which can be shorter. Some flashes still holds valuable information in the bytes after the JEDEC ID and come in handy during debugging of when coping with INFO6() entries. These are not accessible for now. Save a copy of the ID bytes after reading and display it via debugfs. Signed-off-by: Michael Walle Signed-off-by: Tudor Ambarus Reviewed-by: Takahiro Kuwano Link: https://lore.kernel.org/r/20220810220654.1297699-4-michael@walle.cc

mtd: nand: drop EXPORT_SYMBOL_GPL for nanddev_erase()

2022-11-07T16:17:20Z

This function is only used within this module, so it is no longer necessary to use EXPORT_SYMBOL_GPL(). Signed-off-by: Dario Binacchi Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20221018170205.1733958-1-dario.binacchi@amarulasolutions.com

Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2022-10-08T15:56:37Z

Pull char/misc and other driver updates from Greg KH: "Here is the large set of char/misc and other small driver subsystem changes for 6.1-rc1. Loads of different things in here: - IIO driver updates, additions, and changes. Probably the largest part of the diffstat - habanalabs driver update with support for new hardware and features, the second largest part of the diff. - fpga subsystem driver updates and additions - mhi subsystem updates - Coresight driver updates - gnss subsystem updates - extcon driver updates - icc subsystem updates - fsi subsystem updates - nvmem subsystem and driver updates - misc driver updates - speakup driver additions for new features - lots of tiny driver updates and cleanups All of these have been in the linux-next tree for a while with no reported issues" * tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits) w1: Split memcpy() of struct cn_msg flexible array spmi: pmic-arb: increase SPMI transaction timeout delay spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes spmi: pmic-arb: correct duplicate APID to PPID mapping logic spmi: pmic-arb: add support to dispatch interrupt based on IRQ status spmi: pmic-arb: check apid against limits before calling irq handler spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq spmi: pmic-arb: handle spurious interrupt spmi: pmic-arb: add a print in cleanup_irq drivers: spmi: Directly use ida_alloc()/free() MAINTAINERS: add TI ECAP driver info counter: ti-ecap-capture: capture driver support for ECAP Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items dt-bindings: counter: add ti,am62-ecap-capture.yaml counter: Introduce the COUNTER_COMP_ARRAY component type counter: Consolidate Counter extension sysfs attribute creation counter: Introduce the Count capture component counter: 104-quad-8: Add Signal polarity component counter: Introduce the Signal polarity component counter: interrupt-cnt: Implement watch_validate callback ...

mtd: allow getting MTD device associated with a specific DT node

2022-09-24T12:54:37Z

MTD subsystem API allows interacting with MTD devices (e.g. reading, writing, handling bad blocks). So far a random driver could get MTD device only by its name (get_mtd_device_nm()). This change allows getting them also by a DT node. This API is required for drivers handling DT defined MTD partitions in a specific way (e.g. U-Boot (sub)partition with environment variables). Acked-by: Miquel Raynal Signed-off-by: Rafał Miłecki Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220916122100.170016-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

mtd: add ECC error accounting for each read request

2022-09-21T08:38:09Z

Extend struct mtd_req_stats with two new fields holding the number of corrected bitflips and uncorrectable errors detected during a read operation. This is a prerequisite for ultimately passing those counters to user space, where they can be useful to applications for making better-informed choices about moving data around. Unlike 'max_bitflips' (which is set - in a common code path - to the return value of a function called while the MTD device's mutex is held), these counters have to be maintained in each MTD driver which defines the '_read_oob' callback because the statistics need to be calculated while the MTD device's mutex is held. Suggested-by: Boris Brezillon Signed-off-by: Michał Kępień Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220629125737.14418-4-kernel@kempniu.pl

mtd: track maximum number of bitflips for each read request

2022-09-21T08:38:05Z

mtd_read_oob() callers are currently oblivious to the details of ECC errors detected during the read operation - they only learn (through the return value) whether any corrected bitflips or uncorrectable errors occurred. More detailed ECC information can be useful to user-space applications for making better-informed choices about moving data around. Extend struct mtd_oob_ops with a pointer to a newly-introduced struct mtd_req_stats and set its 'max_bitflips' field to the maximum number of bitflips found in a single ECC step during the read operation performed by mtd_read_oob(). This is a prerequisite for ultimately passing that value back to user space. Suggested-by: Boris Brezillon Signed-off-by: Michał Kępień Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220629125737.14418-2-kernel@kempniu.pl

Merge tag 'spi-nor/for-5.20' into mtd/next

2022-08-01T19:31:22Z

SPI NOR core changes: - move SECT_4K_PMC flag out of the core as it's a vendor specific flag - s/addr_width/addr_nbytes: address width means the number of IO lines used for the address, whereas in the code it is used as the number of address bytes. - do not change nor->addr_nbytes at SFDP parsing time. At the SFDP parsing time we should not change members of struct spi_nor, but instead fill members of struct spi_nor_flash_parameters which could later on be used by the callers. - track flash's internal address mode so that we can use 4B opcodes together with opcodes that don't have a 4B opcode correspondent. SPI NOR manufacturer drivers changes: - esmt: Rename "f25l32qa" flash name to "f25l32qa-2s". - micron-st: Skip FSR reading if SPI controller does not support it to allow flashes that support FSR to work even when attached to such SPI controllers. - spansion: Add s25hl-t/s25hs-t IDs and fixups.

Merge remote-tracking branch 'korg_git/nand/next' into mtd/next

2022-08-01T19:24:54Z