linux-toradex.git/include/linux/mtd, branch v6.9-rc5

Merge tag 'ubifs-for-linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

2024-03-21T22:09:29+00:00

Pull UBI and UBIFS updates from Richard Weinberger:
 "UBI:
   - Add Zhihao Cheng as reviewer
   - Attach via device tree
   - Add NVMEM layer
   - Various fastmap related fixes

  UBIFS:
   - Add Zhihao Cheng as reviewer
   - Convert to folios
   - Various fixes (memory leaks in error paths, function prototypes)"

* tag 'ubifs-for-linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: (34 commits)
  mtd: ubi: fix NVMEM over UBI volumes on 32-bit systems
  mtd: ubi: provide NVMEM layer over UBI volumes
  mtd: ubi: populate ubi volume fwnode
  mtd: ubi: introduce pre-removal notification for UBI volumes
  mtd: ubi: attach from device tree
  mtd: ubi: block: use notifier to create ubiblock from parameter
  dt-bindings: mtd: ubi-volume: allow UBI volumes to provide NVMEM
  dt-bindings: mtd: add basic bindings for UBI
  ubifs: Queue up space reservation tasks if retrying many times
  ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path
  ubifs: dbg_check_idx_size: Fix kmemleak if loading znode failed
  ubi: Correct the number of PEBs after a volume resize failure
  ubi: fix slab-out-of-bounds in ubi_eba_get_ldesc+0xfb/0x130
  ubi: correct the calculation of fastmap size
  ubifs: Remove unreachable code in dbg_check_ltab_lnum
  ubifs: fix function pointer cast warnings
  ubifs: fix sort function prototype
  ubi: Check for too small LEB size in VTBL code
  MAINTAINERS: Add Zhihao Cheng as UBI/UBIFS reviewer
  ubifs: Convert populate_page() to take a folio
  ...

Merge tag 'nand/for-6.9' into mtd/next

2024-03-15T11:00:45+00:00

Raw NAND

The main series brought is an update of the Broadcom support to support
all BCMBCA SoCs and their specificity (ECC, write protection,
configuration straps), plus a few misc fixes and changes in the main
driver. Device tree updates are also part of this PR, initially because
of a misunderstanding on my side.

The STM32_FMC2 controller driver is also upgraded to properly support
MP1 and MP25 SoCs.

A new compatible is added for an Atmel flavor.

Among all these feature changes, there is as well a load of continuous
read related fixes, avoiding more corner conditions and clarifying the
logic. Finally a few miscellaneous fixes are made to the core, the
lpx32xx_mlc, fsl_lbc, Meson and Atmel controller driver, as well as
final one in the Hynix vendor driver.

SPI-NAND

The ESMT support has been extended to match 5 bytes ID to avoid
collisions. Winbond support on its side receives support for W25N04KV
chips.

mtd: fix minor comment typo for struct mtd_master

2024-02-26T10:26:31+00:00

Minor typo in the suspend description.

Signed-off-by: Marcel Hamer 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20240216155022.79371-1-marcel.hamer@windriver.com

mtd: lpc32xx: use typedef for dma_filter_fn

2024-02-26T10:26:26+00:00

Use existing typedef for dma_filter_fn to avoid duplicating type
definition.

Signed-off-by: Krzysztof Kozlowski 
Acked-by: Vladimir Zapolskiy 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20240208202113.630190-1-krzysztof.kozlowski@linaro.org

mtd: ubi: introduce pre-removal notification for UBI volumes

2024-02-25T21:41:33+00:00

Introduce a new notification type UBI_VOLUME_SHUTDOWN to inform users
that a volume is just about to be removed.
This is needed because users (such as the NVMEM subsystem) expect that
at the time their removal function is called, the parenting device is
still available (for removal of sysfs nodes, for example, in case of
NVMEM which otherwise WARNs on volume removal).

Signed-off-by: Daniel Golle 
Signed-off-by: Richard Weinberger

mtd: flashchip: explicitly include

2024-02-05T13:27:07+00:00

While reviewing the hyperbus sfdp proposal the following problem was
noticed:

In file included from ./include/linux/mtd/gen_probe.h:10,
                 from drivers/mtd/hyperbus/hyperbus-sfdp.c:6:
./include/linux/mtd/flashchip.h:77:9: error: unknown type name ‘wait_queue_head_t’
   77 |         wait_queue_head_t wq; /* Wait on here when we're waiting for the chip
      |         ^~~~~~~~~~~~~~~~~

It is good practice to directly include all headers used, it avoids
implicit dependencies and spurious breakage if someone rearranges
headers and causes the implicit include to vanish.

Explicitly include  in include/linux/mtd/flashchip.

Signed-off-by: Tudor Ambarus 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20240205100955.149755-1-tudor.ambarus@linaro.org

mtd: spinand: Add support for 5-byte IDs

2024-02-05T13:23:52+00:00

E.g. ESMT chips will return an identification code with a length of 5
bytes. In order to prevent ambiguity, flash chips would actually need to
return IDs that are up to 17 or more bytes long due to JEDEC's
continuation scheme. I understand that if a manufacturer ID is located
in bank N of JEDEC's database (there are currently 16 banks), N - 1
continuation codes (7Fh) need to be added to the identification code
(comprising of manufacturer ID and device ID). However, most flash chip
manufacturers don't seem to implement this (correctly).

Signed-off-by: Ezra Buehler 
Reviewed-by: Martin Kurbanov 
Tested-by: Martin Kurbanov 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20240125200108.24374-2-ezra@easyb.ch

Merge tag 'nand/for-6.8' into mtd/next

2023-12-22T11:45:52+00:00

* Raw NAND

The most meaningful change being the conversion of the brcmnand driver
to the ->exec_op() API, this series brought additional changes to the
core in order to help controller drivers to handle themselves the WP pin
during destructive operations when relevant.

As always, there is as well a whole bunch of miscellaneous W=1 fixes,
together with a few runtime fixes (double free, timeout value, OOB
layout, missing register initialization) and the usual load of remove
callbacks turned into void (which led to switch the txx9ndfmc driver to
use module_platform_driver()).

mtd: rawnand: Prevent crossing LUN boundaries during sequential reads

2023-12-22T11:38:46+00:00

The ONFI specification states that devices do not need to support
sequential reads across LUN boundaries. In order to prevent such event
from happening and possibly failing, let's introduce the concept of
"pause" in the sequential read to handle these cases. The first/last
pages remain the same but any time we cross a LUN boundary we will end
and restart (if relevant) the sequential read operation.

Cc: stable@vger.kernel.org
Fixes: 003fe4b9545b ("mtd: rawnand: Support for sequential cache reads")
Signed-off-by: Miquel Raynal 
Tested-by: Martin Hundebøll 
Link: https://lore.kernel.org/linux-mtd/20231215123208.516590-2-miquel.raynal@bootlin.com

mtd: rawnand: NAND controller write protect

2023-12-04T10:51:40+00:00

Allow NAND controller to be responsible for write protect pin
handling during fast path and exec_op destructive operation
when controller_wp flag is set.

Signed-off-by: David Regan 
Reviewed-by: Florian Fainelli 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20231125012438.15191-2-dregan@broadcom.com