Merge tag 'mtd/for-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Richard Weinberger:
 "MTD core changes:

   - Dynamic partition support

   - Fix deadlock in sm_ftl

   - Various refcount fixes in maps, partitions and parser code

   - Integer overflow fixes in mtdchar

   - Support for Sercomm partitions

  NAND driver changes:

   - Clockrate fix for arasan

   - Add ATO25D1GA support

   - Double free fix for meson driver

   - Fix probe/remove methods in cafe NAND

   - Support unprotected spare data pages in qcom_nandc

  SPI NOR core changes:

   - move SECT_4K_PMC flag out of the core as it's a vendor specific
     flag

   - s/addr_width/addr_nbytes/g: address width means the number of IO
     lines used for the address, whereas in the code it is used as the
     number of address bytes.

   - do not change nor->addr_nbytes at SFDP parsing time. At the SFDP
     parsing time we should not change members of struct spi_nor, but
     instead fill members of struct spi_nor_flash_parameters which could
     later on be used by the callers.

   - track flash's internal address mode so that we can use 4B opcodes
     together with opcodes that don't have a 4B opcode correspondent.

  SPI NOR manufacturer drivers changes:

   - esmt: Rename "f25l32qa" flash name to "f25l32qa-2s".

   - micron-st: Skip FSR reading if SPI controller does not support it
     to allow flashes that support FSR to work even when attached to
     such SPI controllers.

   - spansion: Add s25hl-t/s25hs-t IDs and fixups"

* tag 'mtd/for-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (53 commits)
  mtd: core: check partition before dereference
  mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
  mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups
  mtd: spi-nor: spansion: Add local function to discover page size
  mtd: spi-nor: core: Track flash's internal address mode
  mtd: spi-nor: core: Return error code from set_4byte_addr_mode()
  mtd: spi-nor: Do not change nor->addr_nbytes at SFDP parsing time
  mtd: spi-nor: core: Shrink the storage size of the flash_info's addr_nbytes
  mtd: spi-nor: s/addr_width/addr_nbytes
  mtd: spi-nor: esmt: Use correct name of f25l32qa
  mtd: spi-nor: micron-st: Skip FSR reading if SPI controller does not support it
  MAINTAINERS: Use my kernel.org email
  mtd: rawnand: arasan: Fix clock rate in NV-DDR
  mtd: rawnand: arasan: Update NAND bus clock instead of system clock
  mtd: core: introduce of support for dynamic partitions
  dt-bindings: mtd: partitions: add additional example for qcom,smem-part
  dt-bindings: mtd: partitions: support label/name only partition
  mtd: spi-nor: move SECT_4K_PMC special handling
  mtd: dataflash: Add SPI ID table
  mtd: hyperbus: rpc-if: Fix RPM imbalance in probe error path
  ...

4 files changed, 6 insertions, 7 deletions

diff --git a/include/linux/mtd/hyperbus.h b/include/linux/mtd/hyperbus.h
index 0ce612428aea..bb6b7121a542 100644
--- a/include/linux/mtd/hyperbus.h
+++ b/include/linux/mtd/hyperbus.h
@@ -89,9 +89,7 @@ int hyperbus_register_device(struct hyperbus_device *hbdev);
 /**
  * hyperbus_unregister_device - deregister HyperBus slave memory device
  * @hbdev: hyperbus_device to be unregistered
- *
- * Return: 0 for success, others for failure.
  */
-int hyperbus_unregister_device(struct hyperbus_device *hbdev);
+void hyperbus_unregister_device(struct hyperbus_device *hbdev);
 
 #endif /* __LINUX_MTD_HYPERBUS_H__ */
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 1ede4c89805a..42218a1164f6 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -351,7 +351,7 @@ struct spi_nor_flash_parameter;
  * @bouncebuf_size:	size of the bounce buffer
  * @info:		SPI NOR part JEDEC MFR ID and other info
  * @manufacturer:	SPI NOR manufacturer
- * @addr_width:		number of address bytes
+ * @addr_nbytes:	number of address bytes
  * @erase_opcode:	the opcode for erasing a sector
  * @read_opcode:	the read opcode
  * @read_dummy:		the dummy needed by the read operation
@@ -381,7 +381,7 @@ struct spi_nor {
 	size_t			bouncebuf_size;
 	const struct flash_info	*info;
 	const struct spi_nor_manufacturer *manufacturer;
-	u8			addr_width;
+	u8			addr_nbytes;
 	u8			erase_opcode;
 	u8			read_opcode;
 	u8			read_dummy;
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 5584d3bb6556..6d3392a7edc6 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -260,6 +260,7 @@ struct spinand_manufacturer {
 };
 
 /* SPI NAND manufacturers */
+extern const struct spinand_manufacturer ato_spinand_manufacturer;
 extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
 extern const struct spinand_manufacturer macronix_spinand_manufacturer;
 extern const struct spinand_manufacturer micron_spinand_manufacturer;
diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index b869990c2db2..890d9e5b76d7 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -69,8 +69,8 @@ enum {
  * struct mtd_write_req - data structure for requesting a write operation
  *
  * @start:	start address
- * @len:	length of data buffer
- * @ooblen:	length of OOB buffer
+ * @len:	length of data buffer (only lower 32 bits are used)
+ * @ooblen:	length of OOB buffer (only lower 32 bits are used)
  * @usr_data:	user-provided data buffer
  * @usr_oob:	user-provided OOB buffer
  * @mode:	MTD mode (see "MTD operation modes")