linux.git/drivers/mtd/devices, branch v6.6

mtd: spear_smi: Use helper function devm_clk_get_enabled()

2023-08-21T07:44:39+00:00

Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared
and enabled clocks"), devm_clk_get() and clk_prepare_enable() can now be
replaced by devm_clk_get_enabled() when driver enables (and possibly
prepares) the clocks for the whole lifetime of the device. Moreover, it is
no longer necessary to unprepare and disable the clocks explicitly, so drop
the label "err_irq".

Reviewed-by: Miquel Raynal 
Signed-off-by: Li Zetao 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230821031737.1973183-2-lizetao1@huawei.com

mtd: Explicitly include correct DT includes

2023-07-27T15:03:41+00:00

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring 
Reviewed-by: Linus Walleij 
Acked-by: Heiko Stuebner 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230714174751.4060439-1-robh@kernel.org

mtd: devices: docg3: Remove unnecessary (void*) conversions

2023-07-12T14:58:20+00:00

Pointer variables of (void*) type do not require type cast.

Signed-off-by: Su Hui 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230529015011.38811-1-suhui@nfschina.com

mtd: spear_smi: Convert to devm_platform_ioremap_resource()

2023-07-12T12:08:29+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-17-frank.li@vivo.com

mtd: st_spi_fsm: Convert to devm_platform_ioremap_resource()

2023-07-12T12:08:27+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-16-frank.li@vivo.com

Merge tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

2023-06-28T21:02:03+00:00

Pull mtd updates from
 "Core MTD changes:
   - otp:
      - Put factory OTP/NVRAM into the entropy pool
      - Clean up on error in mtd_otp_nvmem_add()

  MTD devices changes:
   - sm_ftl: Fix typos in comments
   - Use SPDX license headers
   - pismo: Switch back to use i2c_driver's .probe()
   - mtdpart: Drop useless LIST_HEAD
   - st_spi_fsm: Use the devm_clk_get_enabled() helper function

  DT binding changes:
   - partitions:
      - Include TP-Link SafeLoader in allowed list
      - Add missing type for "linux,rootfs"
   - Extend the nand node names filter
   - Create a file for raw NAND chip properties
   - Mark nand-ecc-placement deprecated
   - Describe nand-ecc-mode
   - Prevent NAND chip unevaluated properties in all NAND bindings with
     a NAND chip reference.
   - Qcom: Fix a property position
   - Marvell: Convert to YAML DT schema

  Raw NAND chip drivers changes:
   - Macronix: OTP access for MX30LFxG18AC
   - Add basic Sandisk manufacturer ops
   - Add support for Sandisk SDTNQGAMA

  Raw NAND controller driver changes:
   - Meson:
      - Replace integer consts with proper defines
      - Allow waiting w/o wired ready/busy pin
      - Check buffer length validity
      - Fix unaligned DMA buffers handling
      - dt-bindings: Fix 'nand-rb' property
   - Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported
     configuration" as this limitation is no longer true thanks to the
     recent efforts in improving the clocks support in this driver

  SPI-NAND changes:
   - Gigadevice: add support for GD5F2GQ5xExxH
   - Macronix: Add support for serial NAND flashes"

* tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (38 commits)
  dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
  dt-bindings: mtd: ti,am654: Prevent unevaluated properties
  dt-bindings: mtd: mediatek: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: mediatek: Reference raw-nand-chip.yaml
  dt-bindings: mtd: stm32: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: rockchip: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: intel: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: denali: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: brcmnand: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: meson: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: sunxi: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: qcom: Fix a property position
  dt-bindings: mtd: Describe nand-ecc-mode
  dt-bindings: mtd: Mark nand-ecc-placement deprecated
  dt-bindings: mtd: Create a file for raw NAND chip properties
  dt-bindings: mtd: Accept nand related node names
  mtd: sm_ftl: Fix typos in comments
  mtd: otp: clean up on error in mtd_otp_nvmem_add()
  ...

block: replace fmode_t with a block-specific type for block open flags

2023-06-12T14:04:05+00:00

The only overlap between the block open flags mapped into the fmode_t and
other uses of fmode_t are FMODE_READ and FMODE_WRITE.  Define a new
blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and
->ioctl and stop abusing fmode_t.

Signed-off-by: Christoph Hellwig 
Acked-by: Jack Wang 		[rnbd]
Reviewed-by: Hannes Reinecke 
Reviewed-by: Christian Brauner 
Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de
Signed-off-by: Jens Axboe

block: use the holder as indication for exclusive opens

2023-06-12T14:04:04+00:00

The current interface for exclusive opens is rather confusing as it
requires both the FMODE_EXCL flag and a holder.  Remove the need to pass
FMODE_EXCL and just key off the exclusive open off a non-NULL holder.

For blkdev_put this requires adding the holder argument, which provides
better debug checking that only the holder actually releases the hold,
but at the same time allows removing the now superfluous mode argument.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Acked-by: Christian Brauner 
Acked-by: David Sterba 		[btrfs]
Acked-by: Jack Wang 		[rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-16-hch@lst.de
Signed-off-by: Jens Axboe

mtd: block2mtd: don't call early_lookup_bdev after the system is running

2023-06-05T17:10:14+00:00

early_lookup_bdev is supposed to only be called from the early boot
code, but mdtblock_early_get_bdev is called as a general fallback when
lookup_bdev fails, which is problematic because early_lookup_bdev
bypasses all normal path based permission checking, and might cause
problems with certain container environments renaming devices.

Switch to only call early_lookup_bdev when block2mtd is built-in and the
system state in not running yet.

Note that this strictly speaking changes the kernel ABI as the PARTUUID=
and PARTLABEL= style syntax is now not available during a running
systems.  They never were intended for that, but this breaks things
we'll have to figure out a way to make them available again.  But if
avoidable in any way I'd rather avoid that.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Miquel Raynal 
Link: https://lore.kernel.org/r/20230531125535.676098-24-hch@lst.de
Signed-off-by: Jens Axboe

mtd: block2mtd: factor the early block device open logic into a helper

2023-06-05T17:10:10+00:00

Simplify add_device a bit by splitting out the cumbersome early boot logic
into a separate helper.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Miquel Raynal 
Link: https://lore.kernel.org/r/20230531125535.676098-23-hch@lst.de
Signed-off-by: Jens Axboe