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2018-12-07mtd: rawnand: Deprecate the ->select_chip() hookBoris Brezillon27-36/+37
Now that the CS line to be selected is passed to ->exec_op() and stored in chip->cur_cs and after patching all drivers implementing ->exec_op() to stop implementing this method, we can deprecate it by moving it to the nand_legacy structure. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Stop implementing ->select_chip()Boris Brezillon1-8/+6
Now that the CS to be selected is passed in nand_operation->cs, we can get rid of the ->select_chip() implementation and replace it by an internal function which is called from the chip->exec_op() hook. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: vf610: Stop implementing ->select_chip()Boris Brezillon1-16/+18
Now that the CS to be selected is kept in chip->cur_cs and passed in nand_operation->cs, we can get rid of the ->select_chip() implementation and replace it by an internal function which is called from the chip->exec_op() and chip->ecc.read/write_xxx() hooks. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: tegra: Stop implementing ->select_chip()Boris Brezillon1-16/+12
Now that the CS to be selected is kept in chip->cur_cs and passed in nand_operation->cs, we can get rid of the ->select_chip() implementation and replace it by an internal function which is called from the chip->exec_op() and chip->ecc.read/write_xxx() hooks. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: marvell: Stop implementing ->select_chip()Boris Brezillon1-9/+18
Now that the CS to be selected is kept in chip->cur_cs and passed in nand_operation->cs, we can get rid of the ->select_chip() implementation and replace it by an internal function which is called from the chip->exec_op() and chip->ecc.read/write_xxx() hooks. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: fsmc: Stop implementing ->select_chip()Boris Brezillon1-11/+12
Now that the CS line to assert is directly passed through the nand_operation struct we can replace the fsmc_select_chip() implementation by an internal fsmc_ce_ctrl() function which is directly called from fsmc_exec_op() Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Make ->select_chip() optional when ->exec_op() is implementedBoris Brezillon1-7/+6
Now that the CS to be selected on a nand_operation is passed in nand_operation->cs we can make the ->select_chip() hook optional for drivers implementing ->exec_op(). When not implemented, the core is assuming the CS line is automatically asserted/deasserted by the driver ->exec_op() implementation. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Pass the CS line to be selected in struct nand_operationBoris Brezillon3-19/+27
In order to deprecate the ->select_chip hook we need to pass the CS line a NAND operations are targeting. This is done through the addition of a cs field to the nand_operation struct. We also need to keep track of the currently selected target to properly initialize op->cs, hence the ->cur_cs field addition to the nand_chip struct. Note that op->cs is not assigned in nand_exec_op() because we might rework the way we execute NAND operations in the future (adopt a queuing mechanism instead of the serialization we have right now). Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Add nand_[de]select_target() helpersBoris Brezillon4-51/+100
Add a wrapper to prevent drivers and core code from directly calling the ->select_chip hook which we are about to deprecate. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Explicitly inherit from nand_controllerBoris Brezillon1-0/+5
All NAND objects are supposed to inherit from nand_controller. The framework is providing a dummy controller object, but we're moving away from this approach in favor of explicit inheritance. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Check mtd_device_register() return codeBoris Brezillon1-1/+7
mtd_device_register() can fail, and when it does we should propagate the error and cleanup what has been done before. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: cleanup ams_delta_init() error pathBoris Brezillon1-14/+12
Remove unused labels, rename out_mtd into err_unmap to make it clearer and return 0 instead of using a goto out at the end of the registration procedure. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Fix various coding style issuesBoris Brezillon1-15/+8
Most of them were reported by checkpatch: * s/u_char/u8/ * remove unneeded blank lines * don't print warning messages when devm_kzalloc() fails * Use ! instead of == NULL * Remove invalid comment Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Add an SPDX tag to replace the license textBoris Brezillon1-5/+2
Add an SPDX GPL-2.0 tag and update MODULE_LICENSE() to match the license text. Signed-off-by: Boris Brezillon <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: ams-delta: Allow this driver to be compiled when COMPILE_TEST=yBoris Brezillon2-6/+3
Drop the asm and mach headers inclusion and allow this driver to be compiled when COMPILE_TEST=y in order to increase compile-test coverage. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Move nand_exec_op() to internal.hBoris Brezillon1-0/+9
nand_exec_op() is only used by core code (nand_xxx.c files). Let's move this inline function in drivers/mtd/nand/raw/internals.h. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: legacy: Drop useless test in nand_legacy_set_defaults()Boris Brezillon1-1/+1
nand_legacy_set_defaults() returns directly if chip->exec_op != NULL, no need to test !chip->exec_op after that. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Reorganize code to avoid forward declarationsBoris Brezillon2-254/+246
Avoid forward declaration of nand_get_device(), nand_do_write_oob() and nand_update_bbt() by moving functions around. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: rawnand: Stop passing mtd_info objects to internal functionsBoris Brezillon3-190/+184
After having reworked the rawnand API to avoid passing mtd_info objects around, let's do the same for internal functions. Signed-off-by: Boris Brezillon <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-07mtd: spinand: Add initial support for Toshiba TC58CVG2S0HSchrempf Frieder3-1/+139
Add minimal support for the Toshiba TC58CVG2S0H SPI NAND chip. Signed-off-by: Frieder Schrempf <[email protected]> Acked-by: Clément Péron <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-12-06mtd: physmap_of_gemini: Handle pin controlLinus Walleij2-1/+110
This enables the complex mapping for the Gemini and kicks in custom read/write functions that will wrap the existing simple functions in calls to enable/disable the parallel flash pins using pin controls. This is necessary on some hardware such as the D-Link DIR-685 where all flash pins are patched in/out at the same time, but some of the flash pins are in practice unused by the flash and have anyway been reused as GPIO. This concerns specifically CE1 on the Gemini. There is only one flash chip, so only CE0 is used, and the line for CE1 has been reused as chip select for the emulated SPI port connected to the display. If we try to use the same lines for flash and GPIO at the same time, one of them will loose: the GPIO line will disappear because it gets disconnected from the pin when the flash group is muxed out. Fix this by introducing two pin control states named simply "enabled" and "disabled" and only enable the flash lines when absolutely necessary (during read/write/copy). This way, they are available for GPIO at all other times and the display works. Collect all the state variables in a struct named struct gemini_flash and allocate this struct at probe time. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-06mtd: maps: physmap: Leave assigned complex mappingsLinus Walleij1-2/+12
SoC-specific drivers might provide their own map->xxx() implementations, and calling simple_map_init() unconditionally will override those implementations. Make sure map->read is NULL before calling simple_map_init(). Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-06mtd: add support for reading MTD devices via the nvmem APIAlban Bedel2-0/+57
Allow drivers that use the nvmem API to read data stored on MTD devices. For this the mtd devices are registered as read-only NVMEM providers. We don't support device tree systems for now. Signed-off-by: Alban Bedel <[email protected]> [Bartosz: - include linux/nvmem-provider.h - set the name of the nvmem provider - set no_of_node to true in nvmem_config - don't check the return value of nvmem_unregister() - it cannot fail - tweaked the commit message] Signed-off-by: Bartosz Golaszewski <[email protected]> Acked-by: Boris Brezillon <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-12-03mtd: use DEFINE_SHOW_ATTRIBUTE() instead of open-coding itYangtao Li4-45/+12
DEFINE_SHOW_ATTRIBUTE macro can help us simplify the code, so change to it. And change the DEBUGFS_RO_ATTR macro defined in some file to a standard macro. Signed-off-by: Yangtao Li <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-03mtd: change len type from signed to unsigned typehuijin.park1-1/+1
Callers of erase_write() always pass an unsigned int. So this patch avoids a cast to an int. Signed-off-by: huijin.park <[email protected]> Reviewed-by: Miquel Raynal <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-02mtd: improve calculating partition boundaries when checking for alignmentRafał Miłecki1-2/+11
When checking for alignment mtd should check absolute offsets. It's important for subpartitions as it doesn't make sense to check their relative addresses. Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-02mtd: keep original flags for every struct mtd_infoRafał Miłecki2-1/+4
When allocating a new partition mtd subsystem runs internal tests in the allocate_partition(). They may result in modifying specified flags (e.g. dropping some /features/ like write access). Those constraints don't have to be necessary true for subpartitions. It may happen parent partition isn't block aligned (effectively disabling write access) while subpartition may fit blocks nicely. In such case all checks should be run again (starting with original flags value). Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-02mtd: fix Coverity integer handling issueMiquel Raynal1-3/+3
A Coverity robot reported an integer handling issue (OVERFLOW_BEFORE_WIDEN) in the potentially overflowing expression: (mtd_div_by_ws(mtd->size, mtd) - mtd_div_by_ws(offs, mtd)) * mtd_oobavail(mtd, ops) While such overflow will certainly never happen due to the numbers handled, it is cleaner to fix this operation anyway. The problem is that all the maths include 32-bit quantities, while the result is stored in an explicit 64-bit value. As maxooblen will just be compared with a size_t, let's change the type of the variable to a size_t. This will not fix anything but will clarify a bit the situation. Then, do an explicit cast to fix Coverity warning. Signed-off-by: Miquel Raynal <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-02mtd: nftl: clean up indentation, remove extraneous tabsColin Ian King1-19/+20
The hunk of code is indented too much by one level, fix this by removing the extraneous tabs. Also terminate block comment using the recommended coding style to clean up checkpatch warning. Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-12-01kbuild: announce removal of SUBDIRS if usedMasahiro Yamada1-7/+0
SUBDIRS has been kept as a backward compatibility since commit ("[PATCH] kbuild: external module support") in 2002. We do not need multiple ways to do the same thing, so I will remove SUBDIRS after the Linux 5.3 release. I cleaned up in-tree code, and updated the document so that nobody would try to use it. Meanwhile, display the following warning if SUBDIRS is used. Makefile:189: ================= WARNING ================ Makefile:190: 'SUBDIRS' will be removed after Linux 5.3 Makefile:191: Please use 'M=' or 'KBUILD_EXTMOD' instead Makefile:192: ========================================== Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Boris Brezillon <[email protected]> # for scx200_docflash.c Acked-by: Guenter Roeck <[email protected]> # for scx200_wdt.c
2018-11-28mtd: nand: Fix memory allocation in nanddev_bbt_init()Frieder Schrempf1-1/+2
Fix the size of the buffer allocated to store the in-memory BBT. This bug was previously hidden by a different bug, that was fixed in commit d098093ba06e ("mtd: nand: Fix nanddev_neraseblocks()"). Fixes: 9c3736a3de21 ("mtd: nand: Add core infrastructure to deal with NAND devices") Cc: <[email protected]> Signed-off-by: Frieder Schrempf <[email protected]> Acked-by: Miquel Raynal <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-28mtd: spi-nor: fix erase_type array to indicate current map confTudor Ambarus1-2/+29
BFPT advertises all the erase types supported by all the possible map configurations. Mask out the erase types that are not supported by the current map configuration. Backward compatibility test done on sst26vf064b. Fixes: b038e8e3be72 ("mtd: spi-nor: parse SFDP Sector Map Parameter Table") Reported-by: Alexander Sverdlin <[email protected]> Signed-off-by: Tudor Ambarus <[email protected]> Tested-by: Alexander Sverdlin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-27mtd: Convert to using %pOFn instead of device_node.nameRob Herring1-1/+1
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: David Woodhouse <[email protected]> Cc: Brian Norris <[email protected]> Cc: Boris Brezillon <[email protected]> Cc: Marek Vasut <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Rob Herring <[email protected]>
2018-11-20mtd: spi-nor: fix selection of uniform erase type in flexible conf[email protected]1-11/+36
There are uniform, non-uniform and flexible erase flash configurations. The non-uniform erase types, are the erase types that can _not_ erase the entire flash by their own. As the code was, in case flashes had flexible erase capabilities (support both uniform and non-uniform erase types in the same flash configuration) and supported multiple uniform erase type sizes, the code did not sort the uniform erase types, and could select a wrong erase type size. Sort the uniform erase mask in case of flexible erase flash configurations, in order to select the best uniform erase type size. Uniform, non-uniform, and flexible configurations with just a valid uniform erase type, are not affected by this change. Uniform erase tested on mx25l3273fm2i-08g and sst26vf064B-104i/sn. Non uniform erase tested on sst26vf064B-104i/sn. Fixes: 5390a8df769e ("mtd: spi-nor: add support to non-uniform SFDP SPI NOR flash memories") Signed-off-by: Tudor Ambarus <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-19mtd: spi-nor: Fix Cadence QSPI page fault kernel panicThor Thayer1-3/+16
The current Cadence QSPI driver caused a kernel panic sporadically when writing to QSPI. The problem was caused by writing more bytes than needed because the QSPI operated on 4 bytes at a time. <snip> [ 11.202044] Unable to handle kernel paging request at virtual address bffd3000 [ 11.209254] pgd = e463054d [ 11.211948] [bffd3000] *pgd=2fffb811, *pte=00000000, *ppte=00000000 [ 11.218202] Internal error: Oops: 7 [#1] SMP ARM [ 11.222797] Modules linked in: [ 11.225844] CPU: 1 PID: 1317 Comm: systemd-hwdb Not tainted 4.17.7-d0c45cd44a8f [ 11.235796] Hardware name: Altera SOCFPGA Arria10 [ 11.240487] PC is at __raw_writesl+0x70/0xd4 [ 11.244741] LR is at cqspi_write+0x1a0/0x2cc </snip> On a page boundary limit the number of bytes copied from the tx buffer to remain within the page. This patch uses a temporary buffer to hold the 4 bytes to write and then copies only the bytes required from the tx buffer. Reported-by: Adrian Amborzewicz <[email protected]> Signed-off-by: Thor Thayer <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-18mtd: rawnand: qcom: Namespace prefix some commandsOlof Johansson1-16/+16
PAGE_READ is used by RISC-V arch code included through mm headers, and it makes sense to bring in a prefix on these in the driver. drivers/mtd/nand/raw/qcom_nandc.c:153: warning: "PAGE_READ" redefined #define PAGE_READ 0x2 In file included from include/linux/memremap.h:7, from include/linux/mm.h:27, from include/linux/scatterlist.h:8, from include/linux/dma-mapping.h:11, from drivers/mtd/nand/raw/qcom_nandc.c:17: arch/riscv/include/asm/pgtable.h:48: note: this is the location of the previous definition Caught by riscv allmodconfig. Signed-off-by: Olof Johansson <[email protected]> Reviewed-by: Miquel Raynal <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-18mtd: rawnand: atmel: fix OF child-node lookupJohan Hovold1-4/+7
Use the new of_get_compatible_child() helper to lookup the nfc child node instead of using of_find_compatible_node(), which searches the entire tree from a given start node and thus can return an unrelated (i.e. non-child) node. This also addresses a potential use-after-free (e.g. after probe deferral) as the tree-wide helper drops a reference to its first argument (i.e. the node of the device being probed). While at it, also fix a related nfc-node reference leak. Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver") Cc: stable <[email protected]> # 4.11 Cc: Nicolas Ferre <[email protected]> Cc: Josh Wu <[email protected]> Cc: Boris Brezillon <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-13mtd: spi_nor: pass DMA-able buffer to spi_nor_read_raw()[email protected]1-4/+11
spi_nor_read_raw() calls nor->read() which might be implemented by the m25p80 driver. m25p80 uses the spi-mem layer which requires DMA-able in/out buffers. Pass kmalloc'ed dma buffer to spi_nor_read_raw(). Fixes: b038e8e3be72 ("mtd: spi-nor: parse SFDP Sector Map Parameter Table") Signed-off-by: Tudor Ambarus <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-13mtd: spi-nor: don't overwrite errno in spi_nor_get_map_in_use()[email protected]1-4/+9
Don't overwrite the errno from spi_nor_read_raw(). Signed-off-by: Tudor Ambarus <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-13mtd: spi-nor: fix iteration over smpt array[email protected]1-10/+30
Iterate over smpt array using its starting address and length instead of the blind iterations that used data found in the array. This prevents possible memory accesses outside of the smpt array boundaries in case software, or manufacturers, misrepresent smpt array fields. Fixes: b038e8e3be72 ("mtd: spi-nor: parse SFDP Sector Map Parameter Table") Suggested-by: Boris Brezillon <[email protected]> Signed-off-by: Tudor Ambarus <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-13mtd: spi-nor: don't drop sfdp data if optional parsers fail[email protected]1-3/+12
JESD216C states that just the Basic Flash Parameter Table is mandatory. Already defined (or future) additional parameter headers and tables are optional. Don't drop already collected sfdp data in case an optional table parser fails. In case of failing, each optional parser is responsible to roll back to the previously known spi_nor data. Fixes: b038e8e3be72 ("mtd: spi-nor: parse SFDP Sector Map Parameter Table") Reported-by: Yogesh Gaur <[email protected]> Suggested-by: Boris Brezillon <[email protected]> Signed-off-by: Tudor Ambarus <[email protected]> Tested-by: Yogesh Gaur <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-13mtd: rawnand: sh_flctl: convert to SPDX identifiersKuninori Morimoto1-15/+2
This patch updates license to use SPDX-License-Identifier instead of verbose license text. As original license mentioned, it is GPL-2.0 in SPDX. Then, MODULE_LICENSE() should be "GPL v2" instead of "GPL". See ${LINUX}/include/linux/module.h "GPL" [GNU Public License v2 or later] "GPL v2" [GNU Public License v2] Signed-off-by: Kuninori Morimoto <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2018-11-13Merge tag 'v4.20-rc2' of ↵Miquel Raynal5-6/+15
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into nand/next Linux 4.20-rc2
2018-11-12mtd: partitions: Add OF support to RedBoot partitionsLinus Walleij1-1/+31
This adds device tree support for RedBoot partitioning. We read out the FIS directory block information from the device tree and then parse the partition table from there. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-12mtd: Move Redboot partition parserLinus Walleij5-51/+51
This moves the Redboot partition parser down to the parsers subdirectory. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-09mtd: cfi_cmdset_0020: Mark expected switch fall-throughsGustavo A. R. Silva1-0/+6
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114857 ("Missing break in switch") Addresses-Coverity-ID: 114858 ("Missing break in switch") Addresses-Coverity-ID: 114859 ("Missing break in switch") Addresses-Coverity-ID: 114860 ("Missing break in switch") Addresses-Coverity-ID: 114861 ("Missing break in switch") Addresses-Coverity-ID: 114862 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-09mtd: block2mtd: mark expected switch fall-throughsGustavo A. R. Silva1-0/+2
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 402015 ("Missing break in switch") Addresses-Coverity-ID: 402016 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-09mtd: Kconfig: fix spelling mistake "partions" -> "partition"Colin Ian King1-1/+1
Trivial fix to spelling mistake in the Kconfig text Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
2018-11-07spi: Add QuadSPI driver for Atmel SAMA5D2Piotr Bugalski3-559/+0
Kernel contains QSPI driver strongly tied to MTD and nor-flash memory. New spi-mem interface allows usage also other memory types, especially much larger NAND with SPI interface. This driver works as SPI controller and is not related to MTD, however can work with NAND-flash or other peripherals using spi-mem interface. Suggested-by: Boris Brezillon <[email protected]> Signed-off-by: Piotr Bugalski <[email protected]> Signed-off-by: Mark Brown <[email protected]>
2018-11-07mtd: spi-nor: atmel-quadspi: Remove unused code from atmel-quadspi driverPiotr Bugalski1-388/+0
Code used for previous interface is no longer needed. This change just removes obsolete code. Suggested-by: Boris Brezillon <[email protected]> Signed-off-by: Piotr Bugalski <[email protected]> Signed-off-by: Mark Brown <[email protected]>
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