kernel/git/stable/linux.git/drivers/mtd/nand/alauda.c, branch master

mtd: remove alauda driver

2013-08-30T20:51:57+00:00

The driver has very low utility. Devices in question are limited to about 400kB/s and the only known user (me) discarded the hardware several years back. Signed-off-by: Joern Engel Signed-off-by: Brian Norris Signed-off-by: David Woodhouse

mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN

2012-05-14T04:14:23+00:00

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 Acked-by: Robert Jarzmik Acked-by: Brian Norris Ivan Djelic Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: flash drivers set ecc strength

2012-03-26T23:56:46+00:00

Flash device drivers initialize 'ecc_strength' in struct mtd_info, which is the maximum number of bit errors that can be corrected in one writesize region. Drivers using the nand interface intitialize 'strength' in struct nand_ecc_ctrl, which is the maximum number of bit errors that can be corrected in one ecc step. Nand infrastructure code translates this to 'ecc_strength'. Also for nand drivers, the nand infrastructure code sets ecc.strength for ecc modes NAND_ECC_SOFT, NAND_ECC_SOFT_BCH, and NAND_ECC_NONE. It is set in the driver for all other modes. Signed-off-by: Mike Dunn Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: add leading underscore to all mtd functions

2012-03-26T23:20:01+00:00

This patch renames all MTD functions by adding a "_" prefix: mtd->erase -> mtd->_erase mtd->read_oob -> mtd->_read_oob ... The reason is that we are re-working the MTD API and from now on it is an error to use MTD function pointers directly - we have a corresponding API call for every pointer. By adding a leading "_" we achieve the following: 1. Make sure we convert every direct pointer users 2. A leading "_" suggests that this interface is internal and it becomes less likely that people will use them directly 3. Make sure all the out-of-tree modules stop compiling and the owners spot the big API change and amend them. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

USB: convert some miscellanies drivers to use module_usb_driver()

2011-11-18T17:52:10+00:00

This converts the remaining USB drivers in the kernel to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Guenter Roeck Cc: Jean Delvare Cc: Ben Dooks Cc: Till Harbaum Cc: Karsten Keil Cc: Chris Ball Cc: David Woodhouse Cc: Lauro Ramos Venancio Cc: Aloisio Almeida Jr Cc: Samuel Ortiz Cc: Steve Glendinning Cc: Florian Tobias Schandinat Cc: Evgeniy Polyakov Cc: Wim Van Sebroeck Cc: "David S. Miller" Cc: Jesper Juhl Cc: Artem Bityutskiy Cc: Jamie Iles Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman

mtd: convert remaining users to mtd_device_register()

2011-05-25T01:25:00+00:00

The older add_mtd_device()/add_mtd_partitions() and their removal counterparts will soon be gone. Replace uses with mtd_device_register() and mtd_device_unregister(). Signed-off-by: Jamie Iles Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: nand: make USB device id constant

2010-02-25T11:26:31+00:00

The id_table field of the struct usb_device_id is constant in so it is worth to make alauda_table also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // Signed-off-by: Márton Németh Cc: Julia Lawall Cc: cocci@diku.dk Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: alauda: Use hweight8

2009-11-30T09:53:19+00:00

Signed-off-by: Akinobu Mita Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

[MTD] [NAND] alauda: use USB API functions rather than constants

2009-01-05T11:59:02+00:00

This set of patches introduces calls to the following set of functions: usb_endpoint_dir_in(epd) usb_endpoint_dir_out(epd) usb_endpoint_is_bulk_in(epd) usb_endpoint_is_bulk_out(epd) usb_endpoint_is_int_in(epd) usb_endpoint_is_int_out(epd) usb_endpoint_num(epd) usb_endpoint_type(epd) usb_endpoint_xfer_bulk(epd) usb_endpoint_xfer_control(epd) usb_endpoint_xfer_int(epd) usb_endpoint_xfer_isoc(epd) In some cases, introducing one of these functions is not possible, and it just replaces an explicit integer value by one of the following constants: USB_ENDPOINT_XFER_BULK USB_ENDPOINT_XFER_CONTROL USB_ENDPOINT_XFER_INT USB_ENDPOINT_XFER_ISOC An extract of the semantic patch that makes these changes is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r1@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) == - \(USB_ENDPOINT_XFER_CONTROL\|0\)) + usb_endpoint_xfer_control(epd) @r5@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) == - \(USB_DIR_IN\|0x80\)) + usb_endpoint_dir_in(epd) @inc@ @@ #include @depends on !inc && (r1||r5)@ @@ + #include #include // Signed-off-by: Julia Lawall Signed-off-by: David Woodhouse

USB: remove info() macro from usb mtd drivers

2008-10-17T21:41:10+00:00

USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Acked-by: David Woodhouse Signed-off-by: Greg Kroah-Hartman