linux/drivers/misc/eeprom, branch v3.5

Support M95040 SPI EEPROM

2012-04-18T21:57:57Z

Updated the generic SPI EEPROM driver AT25 for support of an additional address bit in the instruction byte. Certain EEPROMS have a size that is larger than the number of address bytes would allow (e.g. like M95040 from ST that has 512 Byte size but uses only one address byte (A0 to A7) for addressing.) For the extra address bit (A8, A16 or A24) bit 3 of the instruction byte is used. This instruction bit is normally defined as don't care for other AT25 like chips. Reviewed-by: Wolfram Sang Signed-off-by: Ivo Sieben Acked-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

MISC: convert drivers/misc/* to use module_spi_driver()

2012-01-25T00:31:49Z

This patch converts the drivers in drivers/misc/* to use the module_spi_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin Cc: Michael Hennerich Cc: Anatolij Gustschin Cc: Daniel Mack Acked-by: Michael Hennerich Signed-off-by: Greg Kroah-Hartman

MISC: convert drivers/misc/* to use module_i2c_driver()

2012-01-25T00:31:49Z

This patch converts the drivers in drivers/misc/* to use the module_i2c_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin Cc: Michael Hennerich Cc: Anantha Narayanan Cc: Hemanth V Cc: Christoph Mair Cc: Grant Likely Cc: Ben Gardner Cc: Minkyu Kang Cc: Kalhan Trisal Cc: Darrick J. Wong Cc: Daniel Mack Cc: Rodolfo Giometti Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

eeprom_93cx6: Add write support

2011-11-26T19:59:39Z

Add support for writing data to EEPROM. Signed-off-by: Ben Dooks Cc: Wolfram Sang Cc: Jean Delvare Cc: Linux Kernel Signed-off-by: Stephen Boyd Signed-off-by: David S. Miller

eeprom_93cx6: Add data direction control.

2011-11-26T19:59:38Z

Some devices need to know if the data is to be output or read, so add a data direction into the eeprom structure to tell the driver whether the data line should be driven. The user in this case is the Micrel KS8851 which has a direction control for the EEPROM data line and thus needs to know whether to drive it (writing) or to tristate it for receiving. Signed-off-by: Ben Dooks Cc: Wolfram Sang Cc: Jean Delvare Signed-off-by: Stephen Boyd Signed-off-by: David S. Miller

drivers/misc/eeprom: fix dependecy on 'PPC_MPC5200_GPIO'

2011-11-16T00:41:51Z

The driver for the DigsyMTC display configuration EEPROMs device got added by commit 469dded183 ("misc/eeprom: add eeprom access driver for digsy_mtc board"). Its Kconfig symbol depends on PPC_MPC5200_GPIO. But at the time that driver got added PPC_MPC5200_GPIO was already renamed to GPIO_MPC5200, by commit 6eae1ace68 ("gpio: Move mpc5200 gpio driver to drivers/gpio"). So make this driver depend on GPIO_MPC5200. And since GPIO_MPC5200 itself implies that GPIOLIB is set, that dependency can be dropped. Signed-off-by: Paul Bolle Acked-by: Anatolij Gustschin Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

misc/eeprom: add eeprom access driver for digsy_mtc board

2011-07-26T03:57:16Z

Both displays on digsy_mtc board obtain their configuration from microwire EEPROMs which are connected to the SoC over GPIO lines. We need an easy way to access the EEPROMs to write the needed display configuration or to read out the currently programmed configuration. The generic eeprom_93xx46 SPI driver added by previous patch allows EEPROM access over sysfs. Using the simple driver added by this patch we provide used GPIO interface and access control description on the board for generic eeprom_93xx46 driver and spi_gpio driver. Signed-off-by: Anatolij Gustschin Cc: Jonathan Cameron Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

misc/eeprom: add driver for microwire 93xx46 EEPROMs

2011-07-26T03:57:16Z

Add EEPROM driver for 93xx46 chips. It can also be used with spi_gpio driver to access 93xx46 EEPROMs connected over GPIO lines. This driver supports read/write/erase access to the EEPROM chips over sysfs files. [rdunlap@xenotime.net: fix printk format] Signed-off-by: Anatolij Gustschin Cc: Jonathan Cameron Cc: Grant Likely Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

misc/at24: add more sanity checks for parameters

2010-12-24T09:14:17Z

Side-effects happen when passing 0 to either io_limit or page_size. Give an error in case of this misconfiguration. Signed-off-by: Wolfram Sang Signed-off-by: Grant Likely

misc/at24: parse device tree data

2010-12-24T09:13:36Z

Information about the pagesize and read-only-status may also come from the devicetree. Parse this data, too, and act accordingly. While we are here, change the initialization printout a bit. write_max is useful to know to detect performance bottlenecks, the rest is superfluous. Signed-off-by: Wolfram Sang Signed-off-by: Grant Likely