linux-toradex.git/drivers/misc/eeprom/at24.c, branch v3.17-rc6

Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2013-11-18T23:50:07+00:00

Pull i2c changes from Wolfram Sang:
 - new drivers for exynos5, bcm kona, and st micro
 - bigger overhauls for drivers mxs and rcar
 - typical driver bugfixes, cleanups, improvements
 - got rid of the superfluous 'driver' member in i2c_client struct This
   touches a few drivers in other subsystems.  All acked.

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
  i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()
  i2c: i2c-eg20t: do not print error message in syslog if no ACK received
  i2c: bcm-kona: Introduce Broadcom I2C Driver
  i2c: cbus-gpio: Fix device tree binding
  i2c: wmt: add missing clk_disable_unprepare() on error
  i2c: designware: add new ACPI IDs
  i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH
  i2c: exynos5: Remove incorrect clk_disable_unprepare
  i2c: i2c-st: Add ST I2C controller
  i2c: exynos5: add High Speed I2C controller driver
  i2c: rcar: fixup rcar type naming
  i2c: scmi: remove some bogus NULL checks
  i2c: sh_mobile & rcar: Enable the driver on all ARM platforms
  i2c: sh_mobile: Convert to clk_prepare/unprepare
  i2c: mux: gpio: use reg value for i2c_add_mux_adapter
  i2c: mux: gpio: use gpio_set_value_cansleep()
  i2c: Include linux/of.h header
  i2c: mxs: Fix PIO mode on i.MX23
  i2c: mxs: Rework the PIO mode operation
  i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller
  ...

misc/at24: avoid infinite loop on write()

2013-10-29T23:24:33+00:00

This change fixes a problem of infinite zero byte write() without
an error status, if there is an attempt to write a file bigger than
EEPROM size over sysfs interface.

Signed-off-by: Vladimir Zapolskiy 
Cc: Wolfram Sang 
Cc: Greg Kroah-Hartman 
Signed-off-by: Greg Kroah-Hartman

misc: (at24) move header to linux/platform_data/

2013-09-30T04:02:34+00:00

This patch moves the at24.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

It also fixes the following checkpatch warning:

    WARNING: please, no space before tabs
    #436: FILE: include/linux/platform_data/at24.h:31:
    + * ^Iu8 *mac_addr = ethernet_pdata->mac_addr;$

Signed-off-by: Vivien Didelot 
Signed-off-by: Wolfram Sang

drivers/misc: at24: convert to use devm_kzalloc

2013-05-30T12:49:32+00:00

Use devm_kzalloc to make cleanup paths simpler

Signed-off-by: Nikolay Balandin 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Jingoo Han 
Signed-off-by: Greg Kroah-Hartman

misc: remove use of __devexit

2012-11-21T20:53:32+00:00

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton 
Cc: "Michał Mirosław" 
Cc: Wolfram Sang 
Cc: Eric Piel 
Cc: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

drivers/misc: remove use of __devexit_p

2012-11-21T20:49:50+00:00

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton 
Cc: "Michał Mirosław" 
Cc: Wolfram Sang 
Cc: Eric Piel 
Cc: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

misc/at24: add more sanity checks for parameters

2010-12-24T09:14:17+00:00

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

2010-12-24T09:13:36+00:00

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

i2c: Remove all i2c_set_clientdata(client, NULL) in drivers

2010-06-03T09:33:58+00:00

I2C drivers can use the clientdata-pointer to point to private data. As I2C
devices are not really unregistered, but merely detached from their driver, it
used to be the drivers obligation to clear this pointer during remove() or a
failed probe(). As a couple of drivers forgot to do this, it was agreed that it
was cleaner if the i2c-core does this clearance when appropriate, as there is
no guarantee for the lifetime of the clientdata-pointer after remove() anyhow.
This feature was added to the core with commit
e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers.

As there is no need anymore to clear the clientdata-pointer, remove all current
occurrences in the drivers to simplify the code and prevent confusion.

Signed-off-by: Wolfram Sang 
Acked-by: Mark Brown 
Acked-by: Greg Kroah-Hartman 
Acked-by: Richard Purdie 
Acked-by: Dmitry Torokhov 
Signed-off-by: Jean Delvare

Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

2010-05-21T17:49:43+00:00

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-nforce2: Remove redundant error messages on ACPI conflict
  i2c: Use  instead of 
  i2c-algo-pca: Fix coding style issues
  i2c-dev: Fix all coding style issues
  i2c-core: Fix some coding style issues
  i2c-gpio: Move initialization code to subsys_initcall()
  i2c-parport: Make template structure const
  i2c-dev: Remove unnecessary casts
  at24: Fall back to byte or word reads if needed
  i2c-stub: Expose the default functionality flags
  i2c/scx200_acb: Make PCI device ids constant
  i2c-i801: Fix all checkpatch warnings
  i2c-i801: All newer devices have all the optional features
  i2c-i801: Let the user disable selected driver features