linux-stable.git/drivers/mtd/maps, branch v6.6.4

mtd: physmap-core: Restore map_rom fallback

2023-09-11T15:48:22+00:00

When the exact mapping type driver was not available, the old
physmap_of_core driver fell back to mapping the region as ROM.
Unfortunately this feature was lost when the DT and pdata cases were
merged.  Revive this useful feature.

Fixes: 642b1e8dbed7bbbf ("mtd: maps: Merge physmap_of.c into physmap-core.c")
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/550e8c8c1da4c4baeb3d71ff79b14a18d4194f9e.1693407371.git.geert+renesas@glider.be

mtd: maps: fix -Wvoid-pointer-to-enum-cast warning

2023-08-18T14:38:54+00:00

When building with clang 18 I see the following warning:
|       drivers/mtd/maps/physmap-versatile.c:209:25: warning: cast to smaller
|               integer type 'enum versatile_flashprot' from 'const void *' [-Wvoid-pointer-to-enum-cast]
|         209 |                 versatile_flashprot = (enum versatile_flashprot)devid->data;

This is due to the fact that `devid->data` is a void* while `enum versatile_flashprot`
has the size of an int.

Cast `devid->data` to a uintptr_t to silence the above warning for clang
builds using W=1.

Link: https://github.com/ClangBuiltLinux/linux/issues/1910
Reported-by: Nathan Chancellor 
Signed-off-by: Justin Stitt 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230816-void-drivers-mtd-maps-physmap-versatile-v2-1-433a25272bfa@google.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: physmap-core: Use devm_platform_get_and_ioremap_resource()

2023-07-12T12:08:31+00:00

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-18-frank.li@vivo.com

mtd: lantiq-flash: Use devm_platform_get_and_ioremap_resource()

2023-07-12T12:08:24+00:00

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-14-frank.li@vivo.com

mtd: plat-ram: Use devm_platform_get_and_ioremap_resource()

2023-07-12T12:08:22+00:00

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-13-frank.li@vivo.com

mtd: maps: pismo: Switch back to use i2c_driver's .probe()

2023-06-19T08:26:03+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
commit 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.

Signed-off-by: Uwe Kleine-König 
Signed-off-by: Miquel Raynal 
Link: https://lore.kernel.org/linux-mtd/20230611204327.828122-1-u.kleine-koenig@pengutronix.de

Merge tag 'spi-nor/for-6.4' into mtd/next

2023-04-19T18:38:20+00:00

SPI NOR core changes:
* introduce Read While Write support for flashes featuring several banks
* set the 4-Byte Address Mode method based on SFDP data
* allow post_sfdp hook to return errors
* parse SCCR MC table and introduce support for multi-chip devices

SPI NOR manufacturer drivers changes:
* macronix: add support for mx25uw51245g with RWW
* spansion:
  - determine current address mode at runtime as it can be changed in a
    non-volatile way and differ from factory defaults or from what SFDP
    advertises.
  - enable JFFS2 write buffer mode for few ECC'd NOR flashes: S25FS256T,
    s25hx and s28hx
  - add support for s25hl02gt and s25hs02gt

Signed-off-by: Miquel Raynal

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: maps: pismo: Convert to i2c's .probe_new()

2023-03-09T20:58:49+00:00

The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Acked-by: Richard Weinberger 
Link: https://lore.kernel.org/lkml/20221118224540.619276-497-uwe@kleine-koenig.org
Signed-off-by: Uwe Kleine-König 
Signed-off-by: Wolfram Sang