Merge tag 'spi-nor/for-5.4' of git://git.kernel.org/pub/scm/linux/ker…

…nel/git/mtd/linux into mtd/for-5.4

MTD core changes:
- add debugfs nodes for querying the flash name and id

SPI NOR core changes:
- always use bounce buffer for register read/writes
- move m25p80 code in spi-nor.c
- rework hwcaps selection for the spi-mem case
- rework the core in order to move the manufacturer specific code
  out of it:
        - regroup flash parameters in 'struct spi_nor_flash_parameter'
        - add default_init() and post_sfdp() hooks to tweak the flash
          parameters
        - introduce the ->set_4byte(), ->convert_addr() and ->setup()
          methods, to deal with manufacturer specific code
        - rework the SPI NOR lock/unlock logic
- fix an error code in spi_nor_read_raw()
- fix a memory leak bug
- enable the debugfs for the partname and partid
- add support for few flashes

SPI NOR controller drivers changes:
- intel-spi:
        - Whitelist 4B read commands
        - Add support for Intel Tiger Lake SPI serial flash
- aspeed-smc: Add of_node_put()
- hisi-sfc: Add of_node_put()
- cadence-quadspi: Fix QSPI RCU Schedule Stall

drivers/mtd/devices/Kconfig

@@ -79,24 +79,6 @@ config MTD_DATAFLASH_OTP
 	  other key product data.  The second half is programmed with a
 	  unique-to-each-chip bit pattern at the factory.
 
-config MTD_M25P80
-	tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
-	depends on SPI_MASTER && MTD_SPI_NOR
-	select SPI_MEM
-	help
-	  This enables access to most modern SPI flash chips, used for
-	  program and data storage.   Series supported include Atmel AT26DF,
-	  Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X.  Other chips
-	  are supported as well.  See the driver source for the current list,
-	  or to add other chips.
-
-	  Note that the original DataFlash chips (AT45 series, not AT26DF),
-	  need an entirely different driver.
-
-	  Set up your spi devices with the right board-specific platform data,
-	  if you want to specify device partitioning or to use a device which
-	  doesn't support the JEDEC ID instruction.
-
 config MTD_MCHP23K256
 	tristate "Microchip 23K256 SRAM"
 	depends on SPI_MASTER

drivers/mtd/devices/Makefile

@@ -12,7 +12,6 @@ obj-$(CONFIG_MTD_MTDRAM)	+= mtdram.o
 obj-$(CONFIG_MTD_LART)		+= lart.o
 obj-$(CONFIG_MTD_BLOCK2MTD)	+= block2mtd.o
 obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataflash.o
-obj-$(CONFIG_MTD_M25P80)	+= m25p80.o
 obj-$(CONFIG_MTD_MCHP23K256)	+= mchp23k256.o
 obj-$(CONFIG_MTD_SPEAR_SMI)	+= spear_smi.o
 obj-$(CONFIG_MTD_SST25L)	+= sst25l.o