diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-13 11:25:54 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-13 11:25:54 -0800 |
commit | ac53b2e053fffc74372da94e734b92f37e70d32c (patch) | |
tree | cda82af0fcded5d230e9f56104d3988b7a75c8aa /drivers/mtd/nand/nandsim.c | |
parent | cf09112d160e6db21ff8427ce696f819b957423b (diff) | |
parent | 9146cbd52b11d4ade62dba8f238ec5e421c3fa2b (diff) |
Merge tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"Generic MTD:
- populate the MTD device 'of_node' field (and get a proper 'of_node'
symlink in sysfs)
This yielded some new helper functions, and changes across a
variety of drivers
- partitioning cleanups, to prepare for better device-tree based
partitioning in the future
Eliminate a lot of boilerplate for drivers that want to use
OF-based partition parsing
The DT bindings for this didn't settle yet, so most non-cleanup
portions are deferred for a future release
NAND:
- embed a struct mtd_info inside struct nand_chip
This is really long overdue; too many drivers have to do the same
silly boilerplate to allocate and link up two "independent"
structs, when in fact, everyone is assuming there is an exact 1:1
relationship between a NAND chips struct and its underlying MTD.
This aids improved helpers and should make certain abstractions
easier in the future.
Also causes a lot of churn, helped along by some automated code
transformations
- add more core support for detecting (and "correcting") bitflips in
erased pages; requires opt-in by drivers, but at least we kill a
few bad implementations and hopefully stave off future ones
- pxa3xx_nand: cleanups, a few fixes, and PM improvements
- new JZ4780 NAND driver
SPI NOR:
- provide default erase function, for controllers that just want to
send the SECTOR_ERASE command directly
- fix some module auto-loading issues with device tree
("jedec,spi-nor")
- error handling fixes
- new Mediatek QSPI flash driver
Other:
- cfi: force valid geometry Kconfig (finally!)
This one used to trip up randconfigs occasionally, since bots
aren't deterred by big scary "advanced configuration" menus
More? Probably. See the commit logs"
* tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd: (168 commits)
mtd: jz4780_nand: replace if/else blocks with switch/case
mtd: nand: jz4780: Update ecc correction error codes
mtd: nandsim: use nand_get_controller_data()
mtd: jz4780_nand: remove useless mtd->priv = chip assignment
staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers
mtd: nand: make use of nand_set/get_controller_data() helpers
ARM: make use of nand_set/get_controller_data() helpers
mtd: nand: add helpers to access ->priv
mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs
mtd: nand: jz4740: remove custom 'erased check' implementation
mtd: nand: diskonchip: remove custom 'erased check' implementation
mtd: nand: davinci: remove custom 'erased check' implementation
mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions
mtd: nand: return consistent error codes in ecc.correct() implementations
doc: dt: mtd: new binding for jz4780-{nand,bch}
mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc
mtd: spi-nor: wait until lock/unlock operations are ready
mtd: tests: consolidate kmalloc/memset 0 call to kzalloc
jffs2: use to_delayed_work
mtd: nand: assign reasonable default name for NAND drivers
...
Diffstat (limited to 'drivers/mtd/nand/nandsim.c')
-rw-r--r-- | drivers/mtd/nand/nandsim.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index b16d70aafd9e..1fd519503bb1 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -666,8 +666,8 @@ static char *get_partition_name(int i) */ static int init_nandsim(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; - struct nandsim *ns = chip->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); int i, ret = 0; uint64_t remains; uint64_t next_offset; @@ -1908,7 +1908,8 @@ static void switch_state(struct nandsim *ns) static u_char ns_nand_read_byte(struct mtd_info *mtd) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); u_char outb = 0x00; /* Sanity and correctness checks */ @@ -1969,7 +1970,8 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd) static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2123,7 +2125,8 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); ns->lines.cle = bitmask & NAND_CLE ? 1 : 0; ns->lines.ale = bitmask & NAND_ALE ? 1 : 0; @@ -2141,7 +2144,7 @@ static int ns_device_ready(struct mtd_info *mtd) static uint16_t ns_nand_read_word(struct mtd_info *mtd) { - struct nand_chip *chip = (struct nand_chip *)mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); NS_DBG("read_word\n"); @@ -2150,7 +2153,8 @@ static uint16_t ns_nand_read_word(struct mtd_info *mtd) static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Check that chip is expecting data input */ if (!(ns->state & STATE_DATAIN_MASK)) { @@ -2177,7 +2181,8 @@ static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2198,7 +2203,7 @@ static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) int i; for (i = 0; i < len; i++) - buf[i] = ((struct nand_chip *)mtd->priv)->read_byte(mtd); + buf[i] = mtd_to_nand(mtd)->read_byte(mtd); return; } @@ -2236,16 +2241,15 @@ static int __init ns_init_module(void) } /* Allocate and initialize mtd_info, nand_chip and nandsim structures */ - nsmtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip) - + sizeof(struct nandsim), GFP_KERNEL); - if (!nsmtd) { + chip = kzalloc(sizeof(struct nand_chip) + sizeof(struct nandsim), + GFP_KERNEL); + if (!chip) { NS_ERR("unable to allocate core structures.\n"); return -ENOMEM; } - chip = (struct nand_chip *)(nsmtd + 1); - nsmtd->priv = (void *)chip; + nsmtd = nand_to_mtd(chip); nand = (struct nandsim *)(chip + 1); - chip->priv = (void *)nand; + nand_set_controller_data(chip, (void *)nand); /* * Register simulator's callbacks. @@ -2392,7 +2396,7 @@ err_exit: for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i) kfree(nand->partitions[i].name); error: - kfree(nsmtd); + kfree(chip); free_lists(); return retval; @@ -2405,7 +2409,8 @@ module_init(ns_init_module); */ static void __exit ns_cleanup_module(void) { - struct nandsim *ns = ((struct nand_chip *)nsmtd->priv)->priv; + struct nand_chip *chip = mtd_to_nand(nsmtd); + struct nandsim *ns = nand_get_controller_data(chip); int i; nandsim_debugfs_remove(ns); @@ -2413,7 +2418,7 @@ static void __exit ns_cleanup_module(void) nand_release(nsmtd); /* Unregister driver */ for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) kfree(ns->partitions[i].name); - kfree(nsmtd); /* Free other structures */ + kfree(mtd_to_nand(nsmtd)); /* Free other structures */ free_lists(); } |