linux.git/drivers/mtd/devices, branch v4.19

mtd: devices: m25p80: Make sure the buffer passed in op is DMA-able

2018-09-18T08:17:48+00:00

As documented in spi-mem.h, spi_mem_op->data.buf.{in,out} must be
DMA-able, and commit 4120f8d158ef ("mtd: spi-nor: Use the spi_mem_xx()
API") failed to follow this rule as buffers passed to
->{read,write}_reg() are usually placed on the stack.

Fix that by allocating a scratch buffer and copying the data around.

Fixes: 4120f8d158ef ("mtd: spi-nor: Use the spi_mem_xx() API")
Reported-by: Jarkko Nikula 
Cc: 
Signed-off-by: Boris Brezillon 
Tested-by: Jarkko Nikula 
Reviewed-by: Jarkko Nikula

Merge tag 'spi-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2018-08-14T19:01:08+00:00

Pull spi updates from Mark Brown:
 "Quite an active release for the SPI subsystem, lots of small updates
  and fixes scattered about with highlights including:

   - 3-wire support in the GPIO driver.

   - support for setting a custom memory name in the memory mapped flash
     drivers.

   - support for extended mode in the Freescale DSPI controller.

   - support for the non-standard integration with the Microsemi Ocelot
     platform in the DesignWare driver.

   - new driver for the SocioNext UniPhier"

* tag 'spi-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (47 commits)
  spi: davinci: fix a NULL pointer dereference
  spi: spi-mem: Constify spi_mem->name
  mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name
  spi: spi-mem: Extend the SPI mem interface to set a custom memory name
  spi: spi-mem: Fix a typo in the documentation of struct spi_mem
  spi: uniphier: remove unnecessary include headers
  spi: spi-gpio: add SPI_3WIRE support
  spi: add flags parameter to txrx_word function pointers
  spi: add SPI controller driver for UniPhier SoC
  spi: add DT bindings for UniPhier SPI controller
  spi: dw: document Microsemi integration
  spi: img-spfi: Set device select bits for SPFI port state
  spi: omap2-mcspi: remove several redundant variables
  spi: dw-mmio: add MSCC Ocelot support
  spi: dw: export dw_spi_set_cs
  spi: spi-fsl-espi: Log fifo counters on error
  spi: imx: Use the longuest possible burst size when in dynamic_burst
  spi: imx: remove unnecessary check in spi_imx_can_dma
  spi: imx: Use correct number of bytes per words
  spi: imx: Use dynamic bursts only when bits_per_word is 8, 16 or 32
  ...

Merge tag 'spi-nor/for-4.19' of git://git.infradead.org/linux-mtd into mtd/next

2018-08-11T10:19:35+00:00

Pull SPI NOR updates from Boris Brezillon:
"
 Core changes:
 - Apply reset hacks only when reset is explicitly marked as broken in
   the DT

 Driver changes:
 - Minor cleanup/fixes in the m25p80 driver
 - Release flash_np in the nxp-spifi driver
 - Add suspend/resume hooks to the atmel-quadspi driver
 - Include gpio/consumer.h instead of gpio.h in the atmel-quadspi driver
 - Use %pK instead of %p in the stm32-quadspi driver
 - Improve timeout handling in the cadence-quadspi driver
 - Use mtd_device_register() instead of mtd_device_parse_register() in
   the intel-spi driver
"

Merge tag 'nand/for-4.19' of git://git.infradead.org/linux-mtd into mtd/next

2018-08-11T10:15:19+00:00

Pull NAND updates from Miquel Raynal:

"
 NAND core changes:
 - Add the SPI-NAND framework.
 - Create a helper to find the best ECC configuration.
 - Create NAND controller operations.
 - Allocate dynamically ONFI parameters structure.
 - Add defines for ONFI version bits.
 - Add manufacturer fixup for ONFI parameter page.
 - Add an option to specify NAND chip as a boot device.
 - Add Reed-Solomon error correction algorithm.
 - Better name for the controller structure.
 - Remove unused caller_is_module() definition.
 - Make subop helpers return unsigned values.
 - Expose _notsupp() helpers for raw page accessors.
 - Add default values for dynamic timings.
 - Kill the chip->scan_bbt() hook.
 - Rename nand_default_bbt() into nand_create_bbt().
 - Start to clean the nand_chip structure.
 - Remove stale prototype from rawnand.h.

 Raw NAND controllers drivers changes:
 - Qcom: structuring cleanup.
 - Denali: use core helper to find the best ECC configuration.
 - Possible build of almost all drivers by adding a dependency on
   COMPILE_TEST for almost all of them in Kconfig, implies various
   fixes, Kconfig cleanup, GPIO headers inclusion cleanup, and even
   changes in sparc64 and ia64 architectures.
 - Clean the ->probe() functions error path of a lot of drivers.
 - Migrate all drivers to use nand_scan() instead of
   nand_scan_ident()/nand_scan_tail() pair.
 - Use mtd_device_register() where applicable to simplify the code.
 - Marvell:
   * Handle on-die ECC.
   * Better clocks handling.
   * Remove bogus comment.
   * Add suspend and resume support.
 - Tegra: add NAND controller driver.
 - Atmel:
   * Add module param to avoid using dma.
   * Drop Wenyou Yang from MAINTAINERS.
 - Denali: optimize timings handling.
 - FSMC: Stop using chip->read_buf().
 - FSL:
   * Switch to SPDX license tag identifiers.
   * Fix qualifiers in MXC init functions.

 Raw NAND chip drivers changes:
 - Micron:
   * Add fixup for ONFI revision.
   * Update ecc_stats.corrected.
   * Make ECC activation stateful.
   * Avoid enabling/disabling ECC when it can't be disabled.
   * Get the actual number of bitflips.
   * Allow forced on-die ECC.
   * Support 8/512 on-die ECC.
   * Fix on-die ECC detection logic.
 - Hynix:
   * Fix decoding the OOB size on H27UCG8T2BTR.
   * Use ->exec_op() in hynix_nand_reg_write_op().
"

Merge branch 'spi-4.19' into spi-next

2018-08-10T16:51:52+00:00

mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name

2018-08-02T14:35:42+00:00

By calling spi_mem_get_name(), the driver of the (Q)SPI controller can
set a custom name for the memory device if necessary.
This is useful to keep mtdparts compatible when controller drivers are
ported from the MTD to the SPI layer.

Suggested-by: Boris Brezillon 
Signed-off-by: Frieder Schrempf 
Acked-by: Boris Brezillon 
Signed-off-by: Mark Brown

mtd: Make Kconfig formatting consistent

2018-07-19T21:12:06+00:00

Fix indentation and replace '---help---' by 'help' to make things
consistent.

Signed-off-by: Boris Brezillon 
Reviewed-by: Miquel Raynal

mtd: sst25l: use mtd_device_register()

2018-07-18T14:32:38+00:00

This driver doesn't specify parsers so it can use that little helper.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Boris Brezillon

mtd: powernv_flash: set of_node in mtd's dev

2018-07-18T14:31:24+00:00

This enables some features implemented in mtd subsystem like reading
label and partitioning info from DT.

Reported-by: Timothy Pearson 
Signed-off-by: Rafał Miłecki 
Signed-off-by: Boris Brezillon

mtd: dataflash: Use ULL suffix for 64-bit constants

2018-06-22T08:32:28+00:00

With gcc 4.1.2 when compiling for 32-bit:

    drivers/mtd/devices/mtd_dataflash.c:736: warning: integer constant is too large for ‘long’ type
    drivers/mtd/devices/mtd_dataflash.c:737: warning: integer constant is too large for ‘long’ type

Add the missing "ULL" suffixes to fix this.

Fixes: 67e4145ebf2c161d ("mtd: dataflash: Add flash_info for AT45DB641E")
Signed-off-by: Geert Uytterhoeven 
Acked-by: Andrey Smirnov 
Signed-off-by: Boris Brezillon