linux/drivers/mtd/maps, branch v5.12

module: remove never implemented MODULE_SUPPORTED_DEVICE

2021-03-17T20:16:18Z

MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky Signed-off-by: Linus Torvalds

mtd: convert comma to semicolon

2021-02-01T17:58:38Z

Replace a comma between expression statements by a semicolon. Signed-off-by: Zheng Yongjun Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210108092300.18909-1-zhengyongjun3@huawei.com

Merge tags 'spi-nor/for-5.11' and 'nand/for-5.11' into mtd/next

2020-12-16T17:48:16Z

SPI NOR core changes: - Initial support for stateful Octal DTR mode using volatile settings - Preliminary support for JEDEC 251 (xSPI) and JEDEC 216D standards - Support for Cypress Semper flash - Support to specify ECC block size of SPI NOR flashes - Fixes to avoid clearing of non-volatile Block Protection bits at probe Generic NAND core: * ECC management: - Add an I/O request tweaking mechanism - Entire rework of the software BCH ECC driver, creation of a real ECC engine, getting rid of raw NAND structures, migration to more generic prototypes, misc fixes and style cleanup. Moved now to the Generic NAND layer. - Entire rework of the software Hamming ECC driver, creation of a real ECC engine, getting rid of raw NAND structures, misc renames, comment updates, cleanup, and style fixes. Moved now to the generic NAND layer. - Necessary plumbing at the NAND level to retrieve generic NAND ECC engines (softwares and on-die). - Update of the bindings. Raw NAND core: * Geting rid of the chip->ecc.priv entry. * Fix miscellaneous typos in kernel-doc Raw NAND controller drivers: * AU1550: Ensure the presence of the right includes * Davinci: Do not use extra dereferencing * GPMI: - Fix the driver only sense CS0 R/B issue - Fix the random DMA timeout issue - Use a single line for of_device_id - Use of_device_get_match_data() - Fix reference count leak in gpmi ops - Cleanup makefile - Fix binding matching of clocks on different SoCs * Ingenic: remove redundant get_device() in ingenic_ecc_get() * Intel LGM: New NAND controller driver * Marvell: Drop useless line * Meson: - Fix a resource leak in init - Fix meson_nfc_dma_buffer_release() arguments * mxc: - Use device_get_match_data() - Use a single line for of_device_id - Remove platform data support * Qcom: - Add support for SDX55 - Support for IPQ6018 QPIC NAND controller - Fix DMA sync on FLASH_STATUS register read * Rockchip: New NAND controller driver for RK3308, RK2928 and others * Sunxi: Add MDMA support SPI-NAND core: * Creation of a SPI-NAND on-die ECC engine * Move ECC related definitions earlier in the driver * Fix typo in comment * Fill a default ECC provider/algorithm * Remove outdated comment * Fix OOB read * Allow the case where there is no ECC engine * Use the external ECC engine logic SPI-NAND chip drivers: * Micron: - Add support for MT29F2G01AAAED - Use more specific names * Macronix: - Add support for MX35LFxG24AD - Add support for MX35LFxGE4AD Others: * onenand: Use mtd->oops_panic_write as condition * plat-ram: correctly free memory on error path in platram_probe()

mtd: plat-ram: correctly free memory on error path in platram_probe()

2020-12-10T21:37:32Z

If an error happens in mtd_device_parse_register or mtd_device_register, memory allocated for struct platram_info is leaked. Make platram_probe() call platram_remove() on all error paths after struct platram_info allocation to correctly free resources. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Baskov Evgeiny Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20201113160537.899-1-baskov@ispras.ru

mtd: physmap: physmap-bt1-rom: Fix __iomem addrspace removal warning

2020-12-07T11:14:35Z

sparse is unhappy with us casting the __iomem address space pointer to a type with no address space attribute specified: "sparse warnings: (new ones prefixed by >>)" >> drivers/mtd/maps/physmap-bt1-rom.c:78:18: sparse: sparse: cast removes address space '__iomem' of expression Indeed we perform the __iomem-less type casting but to an integer variable. The integer variable isn't dereferenced then, so the casting is safe and won't cause any problem. But in order to make sparse happy and keep the code coherent let's fix the warning by converting the local "shift" and "chunk" variables to the "unsigned int" type (since their value won't ever exceed three) and cast the __iomem-pointers to uintptr_t. Add the same fix to the bt1_rom_map_read() method for unification. Fixes: b3e79e7682e0 ("mtd: physmap: Add Baikal-T1 physically mapped ROM support") Link: https://lore.kernel.org/lkml/202011021254.XC70BaQT-lkp@intel.com/ Signed-off-by: Serge Semin Reported-by: kernel test robot Cc: Alexey Malahov Cc: Pavel Parkhomenko Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20201125072640.23516-1-Sergey.Semin@baikalelectronics.ru

mtd: maps: vmu-flash: fix typos for struct memcard

2020-10-02T07:08:27Z

Change struct memcard`s element "removeable" -> "removable". Signed-off-by: Bernard Zhao Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200922112814.26761-1-bernard@vivo.com

mtd: physmap: Add Baikal-T1 physically mapped ROM support

2020-10-02T07:08:22Z

Baikal-T1 Boot Controller provides an access to a RO storages, which are physically mapped into the SoC MMIO space. In particularly there are Internal ROM embedded into the SoC with a pre-installed firmware, externally attached SPI flash (also accessed in the read-only mode) and a memory region, which mirrors one of them in accordance with the currently enabled system boot mode (also called Boot ROM). This commit adds the Internal ROM support to the physmap driver of the MTD kernel subsystem. The driver will create the Internal ROM MTD as long as it is defined in the system dts file. The physically mapped SPI flash region will be used to implement the SPI-mem interface. The mirroring memory region won't be accessible directly since it's redundant due to both bootable regions being exposed anyway. Note we had to create a dedicated code for the ROMs since read from the corresponding memory regions must be done via the dword-aligned addresses. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: Pavel Parkhomenko Cc: Lee Jones Cc: linux-mips@vger.kernel.org Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200920111445.21816-1-Sergey.Semin@baikalelectronics.ru

mtd: maps: vmu-flash: simplify the return expression of probe_maple_vmu

2020-10-02T07:08:13Z

Simplify the return expression. Signed-off-by: Liu Shixin Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200919100854.1639267-1-liushixin2@huawei.com

mtd: maps: physmap: Retain mtd-name property from dts

2020-08-27T12:16:29Z

In physmap_flash_of_init() the maps[].name can be populated based on the optional 'linux,mtd-name' property in the dts. Make sure this is retained when filling in the rest of the map[] data. Signed-off-by: Chris Packham Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200824025744.25992-1-chris.packham@alliedtelesis.co.nz

mtd: Replace HTTP links with HTTPS ones

2020-08-02T20:17:19Z

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov Acked-by: Rob Herring Signed-off-by: Richard Weinberger