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Merge tag 'mtd/changes-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

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Pull MTD updates from Miquel Raynal:
 "There has been a lot of activity in the MTD subsystem recently, with a
  number of SPI-NOR cleanups as well as the introduction of ECC engines
  that can be used by SPI controllers (hence a few SPI patches in here).

  Core MTD changes:
   - Replace the expert mode symbols with a single helper
   - Fix misuses of of_match_ptr()
   - Remove partid and partname debugfs files
   - tests: Fix eraseblock read speed miscalculation for lower partition
     sizes
   - TRX parser: Allow to use on MediaTek MIPS SoCs

  MTD driver changes:
   - spear_smi: use GFP_KERNEL
   - mchp48l640: Add SPI ID table
   - mchp23k256: Add SPI ID table
   - blkdevs: Avoid soft lockups with some mtd/spi devices
   - aspeed-smc: Improve probe resilience

  Hyperbus changes:
   - HBMC_AM654 should depend on ARCH_K3

  NAND core changes:
   - ECC:
      - Add infrastructure to support hardware engines
      - Add a new helper to retrieve the ECC context
      - Provide a helper to retrieve a pilelined engine device

  NAND-ECC changes:
   - Macronix ECC engine:
      - Add Macronix external ECC engine support
      - Support SPI pipelined mode
      - Make two read-only arrays static const
      - Fix compile test issue

  Raw NAND core changes:
   - Fix misuses of of_match_node()
   - Rework of_get_nand_bus_width()
   - Remove of_get_nand_on_flash_bbt() wrapper
   - Protect access to rawnand devices while in suspend
   - bindings: Document the wp-gpios property

  Rax NAND controller driver changes:
   - atmel: Fix refcount issue in atmel_nand_controller_init
   - nandsim:
      - Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
      - Merge repeat codes in ns_switch_state
      - Replace overflow check with kzalloc to single kcalloc
   - rockchip: Fix platform_get_irq.cocci warning
   - stm32_fmc2: Add NAND Write Protect support
   - pl353: Set the nand chip node as the flash node
   - brcmnand: Fix sparse warnings in bcma_nand
   - omap_elm: Remove redundant variable 'errors'
   - gpmi:
      - Support fast edo timings for mx28
      - Validate controller clock rate
      - Fix controller timings setting
   - brcmnand:
      - Add BCMA shim
      - BCMA controller uses command shift of 0
      - Allow platform data instantation
      - Add platform data structure for BCMA
      - Allow working without interrupts
      - Move OF operations out of brcmnand_init_cs()
      - Avoid pdev in brcmnand_init_cs()
      - Allow SoC to provide I/O operations
      - Assign soc as early as possible

  Onenand changes:
   - Check for error irq

  SPI-NAND core changes:
   - Delay a little bit the dirmap creation
   - Create direct mapping descriptors for ECC operations

  SPI-NAND driver changes:
   - macronix: Use random program load

  SPI NOR core changes:
   - Move vendor specific code out of the core into vendor drivers.
   - Unify all function and object names in the vendor modules.
   - Make setup() callback optional to improve readability.
   - Skip erase logic when the SPI_NOR_NO_ERASE flag is set at flash
     declaration.

  SPI changes:
   - Macronix SPI controller:
      - Fix the transmit path
      - Create a helper to configure the controller before an operation
      - Create a helper to ease the start of an operation
      - Add support for direct mapping
      - Add support for pipelined ECC operations
   - spi-mem:
      - Introduce a capability structure
      - Check the controller extra capabilities
      - cadence-quadspi/mxic: Provide capability structures
      - Kill the spi_mem_dtr_supports_op() helper
      - Add an ecc parameter to the spi_mem_op structure

  Binding changes:
   - Dropped mtd/cortina,gemini-flash.txt
   - Convert BCM47xx partitions to json-schema
   - Vendor prefixes: Clarify Macronix prefix
   - SPI NAND: Convert spi-nand description file to yaml
   - Raw NAND chip: Create a NAND chip description
   - Raw NAND controller:
      - Harmonize the property types
      - Fix a comment in the examples
      - Fix the reg property description
   - Describe Macronix NAND ECC engine
   - Macronix SPI controller:
      - Document the nand-ecc-engine property
      - Convert to yaml
      - The interrupt property is not mandatory"

* tag 'mtd/changes-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (104 commits)
  mtd: nand: ecc: mxic: Fix compile test issue
  mtd: nand: mxic-ecc: make two read-only arrays static const
  mtd: hyperbus: HBMC_AM654 should depend on ARCH_K3
  mtd: core: Remove partid and partname debugfs files
  dt-bindings: mtd: partitions: convert BCM47xx to the json-schema
  mtd: tests: Fix eraseblock read speed miscalculation for lower partition sizes
  mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init
  mtd: rawnand: rockchip: fix platform_get_irq.cocci warning
  mtd: spi-nor: Skip erase logic when SPI_NOR_NO_ERASE is set
  mtd: spi-nor: renumber flags
  mtd: spi-nor: slightly change code style in spi_nor_sr_ready()
  mtd: spi-nor: spansion: rename vendor specific functions and defines
  mtd: spi-nor: spansion: convert USE_CLSR to a manufacturer flag
  mtd: spi-nor: move all spansion specifics into spansion.c
  mtd: spi-nor: spansion: slightly rework control flow in late_init()
  mtd: spi-nor: micron-st: rename vendor specific functions and defines
  mtd: spi-nor: micron-st: convert USE_FSR to a manufacturer flag
  mtd: spi-nor: move all micron-st specifics into micron-st.c
  mtd: spi-nor: xilinx: correct the debug message
  mtd: spi-nor: xilinx: rename vendor specific functions and defines
  ...
This commit is contained in:
Linus Torvalds
2022-03-25 13:35:34 -07:00
parent 8eb48fc7c5 6cadd424ab
commit e35a4a4e13
84 changed files with 2924 additions and 1002 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/mtd/mtdcore.c
View File

@@ -336,49 +336,31 @@ static const struct device_type mtd_devtype = {
.release = mtd_release,
};
static int mtd_partid_debug_show(struct seq_file *s, void *p)
static bool mtd_expert_analysis_mode;
#ifdef CONFIG_DEBUG_FS
bool mtd_check_expert_analysis_mode(void)
{
struct mtd_info *mtd = s->private;
const char *mtd_expert_analysis_warning =
"Bad block checks have been entirely disabled.\n"
"This is only reserved for post-mortem forensics and debug purposes.\n"
"Never enable this mode if you do not know what you are doing!\n";
seq_printf(s, "%s\n", mtd->dbg.partid);
return 0;
return WARN_ONCE(mtd_expert_analysis_mode, mtd_expert_analysis_warning);
}
DEFINE_SHOW_ATTRIBUTE(mtd_partid_debug);
static int mtd_partname_debug_show(struct seq_file *s, void *p)
{
struct mtd_info *mtd = s->private;
seq_printf(s, "%s\n", mtd->dbg.partname);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(mtd_partname_debug);
EXPORT_SYMBOL_GPL(mtd_check_expert_analysis_mode);
#endif
static struct dentry *dfs_dir_mtd;
static void mtd_debugfs_populate(struct mtd_info *mtd)
{
struct mtd_info *master = mtd_get_master(mtd);
struct device *dev = &mtd->dev;
struct dentry *root;
if (IS_ERR_OR_NULL(dfs_dir_mtd))
return;
root = debugfs_create_dir(dev_name(dev), dfs_dir_mtd);
mtd->dbg.dfs_dir = root;
if (master->dbg.partid)
debugfs_create_file("partid", 0400, root, master,
&mtd_partid_debug_fops);
if (master->dbg.partname)
debugfs_create_file("partname", 0400, root, master,
&mtd_partname_debug_fops);
mtd->dbg.dfs_dir = debugfs_create_dir(dev_name(dev), dfs_dir_mtd);
}
#ifndef CONFIG_MMU
@@ -2372,14 +2354,6 @@ static struct backing_dev_info * __init mtd_bdi_init(const char *name)
return ret ? ERR_PTR(ret) : bdi;
}
char *mtd_expert_analysis_warning =
"Bad block checks have been entirely disabled.\n"
"This is only reserved for post-mortem forensics and debug purposes.\n"
"Never enable this mode if you do not know what you are doing!\n";
EXPORT_SYMBOL_GPL(mtd_expert_analysis_warning);
bool mtd_expert_analysis_mode;
EXPORT_SYMBOL_GPL(mtd_expert_analysis_mode);
static struct proc_dir_entry *proc_mtd;
static int __init init_mtd(void)