linux/drivers/mtd/maps/physmap_of.c, branch v4.5

mtd: physmap_of: assign parent for the concatenated MTD

2015-11-11T21:59:08Z

If there is more than one map region for this device, then the concatenated MTD will not have a parent device assigned to it -- only the sub-devices (which are not actually registered with the framework) will have their parents assigned. Let's assign the concatenated device correctly. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon

mtd: drop unnecessary partition parser data

2015-11-11T21:58:59Z

We should assign the MTD dev.of_node instead of the parser data field. This gets us the equivalent partition parser behavior with fewer special fields and parameter passing. Also convert several of these to mtd_device_register(), since we don't need the 2nd and 3rd parameters anymore. Signed-off-by: Brian Norris Reviewed-by: Marek Vasut Reviewed-by: Boris Brezillon

mtd: maps: physmap_of: drop owner assignment

2015-10-13T19:56:22Z

Owner is automatically set by mtdcore. Make use of that. Signed-off-by: Frans Klaver Signed-off-by: Brian Norris

mtd: physmap_of: fix null pointer deference when kzalloc returns null

2015-08-19T00:57:19Z

static analysis by smatch caught the following error: drivers/mtd/maps/physmap_of.c:135 of_get_probes() error: potential null dereference 'res'. (kzalloc returns null) Check for failed kzalloc and return -ENOMEM in of_flash_probe if this occurs. Signed-off-by: Colin Ian King Signed-off-by: Brian Norris

mtd: constify of_device_id array

2015-05-07T06:44:07Z

of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick Signed-off-by: Brian Norris

mtd: physmap_of: Add read-only fallback

2015-01-10T07:22:40Z

Previously, when probing a CFI chip which was write-protected at the hardware level, the probe would fail due to the fact it could not put the chip into QUERY mode. This would result in no MTD devices being created. Add a fallback to probe using the map_rom driver if the user-selected probe fails. Signed-off-by: Joe Schultz Signed-off-by: Aaron Sierra Signed-off-by: Brian Norris

Merge tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd

2014-12-17T17:59:26Z

Pull MTD updates from Brian Norris: "Summary: - Add device tree support for DoC3 - SPI NOR: Refactoring, for better layering between spi-nor.c and its driver users (e.g., m25p80.c) New flash device support Support 6-byte ID strings - NAND: New NAND driver for Allwinner SoC's (sunxi) GPMI NAND: add support for raw (no ECC) access, for testing purposes Add ATO manufacturer ID A few odd driver fixes - MTD tests: Allow testers to compensate for OOB bitflips in oobtest Fix a torturetest regression - nandsim: Support longer ID byte strings And more" * tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd: (63 commits) mtd: tests: abort torturetest on erase errors mtd: physmap_of: fix potential NULL dereference mtd: spi-nor: allow NULL as chip name and try to auto detect it mtd: nand: gpmi: add raw oob access functions mtd: nand: gpmi: add proper raw access support mtd: nand: gpmi: add gpmi_copy_bits function mtd: spi-nor: factor out write_enable() for erase commands mtd: spi-nor: add support for s25fl128s mtd: spi-nor: remove the jedec_id/ext_id mtd: spi-nor: add id/id_len for flash_info{} mtd: nand: correct the comment of function nand_block_isreserved() jffs2: Drop bogus if in comment mtd: atmel_nand: replace memcpy32_toio/memcpy32_fromio with memcpy mtd: cafe_nand: drop duplicate .write_page implementation mtd: m25p80: Add support for serial flash Spansion S25FL132K MTD: m25p80: fix inconsistency in m25p_ids compared to spi_nor_ids mtd: spi-nor: improve wait-till-ready timeout loop mtd: delete unnecessary checks before two function calls mtd: nand: omap: Fix NAND enumeration on 3430 LDP mtd: nand: add ATO manufacturer info ...

mtd: physmap_of: fix potential NULL dereference

2014-12-13T03:12:16Z

On device remove, when testing the cmtd field of an of_flash struct to decide whether it is a concatenated device or not, we get a false positive on cmtd == NULL, and dereference it subsequently. This may occur if of_flash_remove() is called from the cleanup path of of_flash_probe(). Instead, test for NULL first, and only then perform the test for a concatenated device. Signed-off-by: Ard Biesheuvel Signed-off-by: Brian Norris

mtd: maps: drop owner assignment from platform_drivers

2014-10-20T14:20:57Z

A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang

mtd: physmap_of: Add non-obsolete map_rom probe

2014-09-22T17:13:13Z

Previously, the only way to map a NOR device as a simple ROM was to use the obsolete "direct-mapped" compatible binding (which further requires device_type = "nor" and probe-type = "NOR" properties). This patch adds an "mtd-rom" compatible binding to the "map_rom" probe type. Signed-off-by: Aaron Sierra Signed-off-by: Brian Norris