linux-stable.git/drivers/mtd/devices, branch linux-6.4.y

Merge tag 'spi-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2023-04-27T18:02:26+00:00

Pull spi updates from Mark Brown:
 "A fairly standard release for SPI with the exception of a change to
  the API for specifying chip selects done in preparation for supporting
  devices with more than one chip select, this required some mechanical
  changes throughout the tree which have been cooking in -next happily
  for a while.

  There's also a new API to allow us to support TPM chips on half duplex
  controllers.

  Summary:

   - Refactoring in preparation for supporting multiple chip selects for
     a single device, needed by some flash devices, which required a
     change in the SPI device API visible throughout the tree

   - Support for hardware assisted interaction with SPI TPMs on half
     duplex controllers, implemented on nVidia Tedra210 QuadSPI

   - Optimisation for large transfers on fsl-cpm devices

   - Cleanups around device property use which fix some sisues with
     fwnode

   - Use of both void remove() and devm_platform_.*ioremap_resource()

   - Support for AMD Pensando Elba, Amlogic A1, Cadence device mode,
     Intel MetorLake-S and StarFive J7110 QuadSPI"

* tag 'spi-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (185 commits)
  spi: bcm63xx: use macro DEFINE_SIMPLE_DEV_PM_OPS
  spi: tegra210-quad: Enable TPM wait polling
  spi: Add TPM HW flow flag
  spi: bcm63xx: remove PM_SLEEP based conditional compilation
  spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS
  spi: spi-cadence: Add support for Slave mode
  spi: spi-cadence: Switch to spi_controller structure
  spi: cadence-quadspi: fix suspend-resume implementations
  spi: dw: Add support for AMD Pensando Elba SoC
  spi: dw: Add AMD Pensando Elba SoC SPI Controller
  spi: cadence-quadspi: Disable the SPI before reconfiguring
  spi: cadence-quadspi: Update the read timeout based on the length
  spi: spi-loopback-test: Add module param for iteration length
  spi: add support for Amlogic A1 SPI Flash Controller
  dt-bindings: spi: add Amlogic A1 SPI controller
  spi: fsl-spi: No need to check transfer length versus word size
  spi: fsl-spi: Change mspi_apply_cpu_mode_quirks() to void
  spi: fsl-cpm: Use 16 bit mode for large transfers with even size
  spi: fsl-spi: Re-organise transfer bits_per_word adaptation
  spi: fsl-spi: Fix CPM/QE mode Litte Endian
  ...

mtd: Use of_property_read_bool() for boolean properties

2023-03-22T16:02:17+00:00

It is preferred to use typed property access functions (i.e.
of_property_read_ functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().

Signed-off-by: Rob Herring 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230310144716.1543995-1-robh@kernel.org

mtd: devices: Replace all spi->chip_select and spi->cs_gpiod references with function call

2023-03-11T12:34:04+00:00

Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
spi->cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select & cs_gpiod
members of the spi_device structure would be converted to arrays & the
"idx" parameter of the APIs would be used as array index i.e.,
spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.

Signed-off-by: Amit Kumar Mahapatra 
Reviewed-by: Michal Simek 
Link: https://lore.kernel.org/r/167847071245.26.7777775616228465939@mailman-core.alsa-project.org
Signed-off-by: Mark Brown

mtd: dataflash: remove duplicate SPI ID table

2023-01-02T11:15:57+00:00

Building with -Werror=override-init reveals that two patches added
the same device ID table to this driver:

drivers/mtd/devices/mtd_dataflash.c:946:27: error: initialized field overwritten [-Werror=override-init]
  946 |         .id_table       = dataflash_spi_ids,
      |                           ^~~~~~~~~~~~~~~~~
drivers/mtd/devices/mtd_dataflash.c:946:27: note: (near initialization for 'dataflash_driver.id_table')

Remove one of the copies.

Fixes: 27a030e87292 ("mtd: dataflash: Add device-tree SPI IDs")
Fixes: ac4f83482afb ("mtd: dataflash: Add SPI ID table")
Signed-off-by: Arnd Bergmann 
Acked-by: Uwe Kleine-König 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20221215164736.1315815-1-arnd@kernel.org

mtd: remove lart flash driver

2022-11-07T16:14:14+00:00

The sa1100 lart platform was removed, so its flash driver is
no longer useful.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20221021155000.4108406-7-arnd@kernel.org

mtd: add ECC error accounting for each read request

2022-09-21T08:38:09+00:00

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: move from strlcpy with unused retval to strscpy

2022-09-19T16:14:53+00:00

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20220818210033.7084-1-wsa+renesas@sang-engineering.com

mtd: devices: docg3: Use correct function names in comment blocks

2022-09-19T16:14:53+00:00

The incorrect function name is being used in the comment for functions
doc_set_reliable_mode, doc_read_seek and docg3_probe. Correct these
comments.

Signed-off-by: Colin Ian King 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20220805175423.2374939-1-colin.i.king@gmail.com

mtd: devices: docg3: check the return value of devm_ioremap() in the probe

2022-09-19T16:14:38+00:00

The function devm_ioremap() in docg3_probe() can fail, so
its return value should be checked.

Fixes: 82402aeb8c81e ("mtd: docg3: Use devm_*() functions")
Reported-by: Hacash Robot 
Signed-off-by: William Dean 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20220722091644.2937953-1-williamsukatube@163.com

mtd: dataflash: Add SPI ID table

2022-06-24T18:47:38+00:00

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20220620152313.708768-1-broonie@kernel.org