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linux/drivers/mtd/nand
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Mike Dunn edbc4540e0 mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN 
The drivers' _read() method, absent an error, returns a non-negative integer
indicating the maximum number of bit errors that were corrected in any one
region comprising an ecc step.  MTD returns -EUCLEAN if this is >=
bitflip_threshold, 0 otherwise.  If bitflip_threshold is zero, the comparison is
not made since these devices lack ECC and always return zero in the non-error
case (thanks Brian)¹.  Note that this is a subtle change to the driver
interface.

This and the preceding patches in this set were tested with ubi on top of the
nandsim and docg4 devices, running the ubi test io_basic from mtd-utils.

¹ http://lists.infradead.org/pipermail/linux-mtd/2012-March/040468.html

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Ivan Djelic <ivan.djelic@parrot.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
 		2012-05-13 23:14:23 -05:00
..
gpmi-nand mtd: gpmi: do not include the mxs.h 2012-05-13 22:47:17 -05:00
Kconfig MTD merge for 3.4 2012-03-30 17:31:56 -07:00
Makefile MTD merge for 3.4 2012-03-30 17:31:56 -07:00
alauda.c mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN 2012-05-13 23:14:23 -05:00
ams-delta.c mtd: ams-delta: fix request_mem_region() failure 2012-05-08 16:24:33 -05:00
atmel_nand.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
atmel_nand_ecc.h
…
au1550nd.c MTD: nand: make au1550nd.c a platform_driver 2011-12-08 10:42:10 +00:00
autcpu12.c mtd: nand: rename NAND_USE_FLASH_BBT 2011-09-11 15:01:56 +03:00
bcm_umi_bch.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
bcm_umi_nand.c mtd: nand: fix incorrect ecc strength values 2012-05-13 23:10:28 -05:00
bf5xx_nand.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
cafe_nand.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
cmx270_nand.c mtd: do not use plain 0 as NULL 2012-03-27 00:53:20 +01:00
cs553x_nand.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
davinci_nand.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
denali.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
denali.h mtd: denali: detect the number of banks 2011-05-25 02:02:12 +01:00
diskonchip.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
docg4.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
fsl_elbc_nand.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
fsl_ifc_nand.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
fsl_upm.c mtd: convert drivers/mtd/* to use module_platform_driver() 2012-01-09 18:12:35 +00:00
fsmc_nand.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
gpio.c mtd: gpio-nand: add device tree bindings 2012-01-09 18:23:58 +00:00
h1910.c mtd: do not use plain 0 as NULL 2012-03-27 00:53:20 +01:00
jz4740_nand.c mtd: nand: fix incorrect ecc strength values 2012-05-13 23:10:28 -05:00
mpc5121_nfc.c mtd: convert drivers/mtd/* to use module_platform_driver() 2012-01-09 18:12:35 +00:00
mxc_nand.c mtd: mxc_nand: fix several sparse warnings about incorrect address space 2012-05-13 23:03:31 -05:00
nand_base.c mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN 2012-05-13 23:14:23 -05:00
nand_bbt.c mtd: introduce mtd_write_oob interface 2012-01-09 18:25:24 +00:00
nand_bch.c mtd: cleanup style on pr_debug messages 2011-09-11 15:02:16 +03:00
nand_bcm_umi.c
…
nand_bcm_umi.h
…
nand_ecc.c mtd: spelling, capitalization, uniformity 2011-09-11 15:02:13 +03:00
nand_ids.c mtd: nand: add 512 Mbit device code (Macronix) 2012-01-09 17:59:44 +00:00
nandsim.c mtd: introduce mtd_block_markbad interface 2012-01-09 18:25:48 +00:00
ndfc.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
nomadik_nand.c mtd: introduce mtd_resume interface 2012-01-09 18:25:46 +00:00
nuc900_nand.c mtd: convert drivers/mtd/* to use module_platform_driver() 2012-01-09 18:12:35 +00:00
omap2.c mtd: nand: omap: fix race condition in omap_wait() 2012-05-13 22:54:00 -05:00
orion_nand.c mtd: do not use plain 0 as NULL 2012-03-27 00:53:20 +01:00
pasemi_nand.c mtd: convert drivers/mtd/* to use module_platform_driver() 2012-01-09 18:12:35 +00:00
plat_nand.c mtd: plat_nand: Add default partition parser to driver 2012-05-13 22:47:04 -05:00
ppchameleonevb.c mtd: do not use plain 0 as NULL 2012-03-27 00:53:20 +01:00
pxa3xx_nand.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
r852.c mtd: use module_pci_driver 2012-05-13 22:47:19 -05:00
r852.h mtd: r852: remove useless pci powerup/down from suspend/resume routines 2010-10-25 01:32:21 +01:00
rtc_from4.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
s3c2410.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
sh_flctl.c mtd: nand: read_page() returns max_bitflips 2012-05-13 23:12:06 -05:00
sharpsl.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
sm_common.c mtd: introduce mtd_write_oob interface 2012-01-09 18:25:24 +00:00
sm_common.h mtd: sm_common: split smartmedia and xD table 2010-05-14 01:03:46 +01:00
socrates_nand.c mtd: convert drivers/mtd/* to use module_platform_driver() 2012-01-09 18:12:35 +00:00
spia.c mtd: convert remaining users to mtd_device_register() 2011-05-25 02:25:00 +01:00
tmio_nand.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00
txx9ndfmc.c mtd: flash drivers set ecc strength 2012-03-27 00:56:46 +01:00