linux-toradex.git/drivers/misc/mei/bus.c, branch v3.13.8 Linux kernel for Apalis and Colibri modules mei: bus: propagate error code returned by mei_me_cl_by_id 2013-10-29T23:20:43+00:00 Tomas Winkler tomas.winkler@intel.com 2013-10-21T19:05:40+00:00 f9350129a09d8f55ba9322fa4327aeb499a91bbd no need to change error code value returned by mei_me_cl_by_id, just propagate it on Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
no need to change error code value returned by
mei_me_cl_by_id, just propagate it on

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: bus: stop wait for read during cl state transition 2013-09-26T20:56:53+00:00 Tomas Winkler tomas.winkler@intel.com 2013-09-02T10:29:46+00:00 e2b31644e999e8bfe3efce880fb32840299abf41 Bus layer omitted check for client state transition while waiting for read completion The client state transition may occur for example as result of firmware initiated reset Add mei_cl_is_transitioning wrapper to reduce the code repetition.: Cc: <stable@vger.kernel.org> # 3.9+ Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Bus layer omitted check for client state transition while waiting
for read completion
The client state transition may occur for example as result
of firmware initiated reset

Add mei_cl_is_transitioning wrapper to reduce the code
repetition.:

Cc:  <stable@vger.kernel.org> # 3.9+
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 2013-09-03T18:37:15+00:00 Linus Torvalds torvalds@linux-foundation.org 2013-09-03T18:37:15+00:00 542a086ac72fb193cbc1b996963a572269e57743 Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ... 
Pull driver core patches from Greg KH:
 "Here's the big driver core pull request for 3.12-rc1.

  Lots of tiny changes here fixing up the way sysfs attributes are
  created, to try to make drivers simpler, and fix a whole class race
  conditions with creations of device attributes after the device was
  announced to userspace.

  All the various pieces are acked by the different subsystem
  maintainers"

* tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits)
  firmware loader: fix pending_fw_head list corruption
  drivers/base/memory.c: introduce help macro to_memory_block
  dynamic debug: line queries failing due to uninitialized local variable
  sysfs: sysfs_create_groups returns a value.
  debugfs: provide debugfs_create_x64() when disabled
  rbd: convert bus code to use bus_groups
  firmware: dcdbas: use binary attribute groups
  sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled
  driver core: add #include <linux/sysfs.h> to core files.
  HID: convert bus code to use dev_groups
  Input: serio: convert bus code to use drv_groups
  Input: gameport: convert bus code to use drv_groups
  driver core: firmware: use __ATTR_RW()
  driver core: core: use DEVICE_ATTR_RO
  driver core: bus: use DRIVER_ATTR_WO()
  driver core: create write-only attribute macros for devices and drivers
  sysfs: create __ATTR_WO()
  driver-core: platform: convert bus code to use dev_groups
  workqueue: convert bus code to use dev_groups
  MEI: convert bus code to use dev_groups
  ...
MEI: convert bus code to use dev_groups 2013-08-23T21:38:12+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2013-08-23T21:24:39+00:00 32f389ec5689751bae758c9b3e3982b2acb696c1 The dev_attrs field of struct bus_type is going away soon, dev_groups should be used instead. This converts the MEI bus code to use the correct field. Acked-by: Tomas Winkler <tomas.winkler@intel.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the MEI bus code to use
the correct field.

Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: bus: do not overflow the device name buffer 2013-07-25T05:50:53+00:00 Tomas Winkler tomas.winkler@intel.com 2013-07-24T13:22:59+00:00 8b613bb86a3d4a106c9a8f6de3d8a4c3628ea998 1. use strncmp for comparsion strncpy was used for copying which may omit the final %NUL terminator 2. id->name is statically defined so we can use sizeof Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
1. use strncmp for comparsion strncpy was used for copying
which may omit the final %NUL terminator
2. id->name is statically defined so we can use sizeof

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: bus: Reset event_cb when disabling a device 2013-05-21T16:57:55+00:00 Samuel Ortiz sameo@linux.intel.com 2013-05-21T16:52:09+00:00 bbedf2fc207bbd89c109123caee7cf0497030762 After cancelling all reads from the disable hook, we need to reset the event_cb pointer as well or else we won't be able to set a new one up when re-enabling the device. Acked-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
After cancelling all reads from the disable hook, we need to reset the
event_cb pointer as well or else we won't be able to set a new one up
when re-enabling the device.

Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: fix reading large reposnes 2013-04-19T20:38:38+00:00 Tomas Winkler tomas.winkler@intel.com 2013-04-19T19:01:35+00:00 fcb136e1ac5774909e0d85189f721b8dfa800e0f While writting to device is limitted to max_msg_length advertized in client properites the read can be much longer delivered consequiting chunks. We use krealloc to enlarge the buffer when needed. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
While writting to device is limitted to max_msg_length advertized
in client properites the read can be much longer delivered consequiting chunks.

We use krealloc to enlarge the buffer when needed.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: bus: Add device enabling and disabling API 2013-04-08T23:57:15+00:00 Samuel Ortiz sameo@linux.intel.com 2013-04-08T22:51:38+00:00 e46980a10a76ec3282dd6832c1974b880acd23d3 It should be left to the drivers to enable and disable the device on the MEI bus when e.g getting probed. For drivers to be able to safely call the enable and disable hooks, the mei_cl_ops must be set before it's probed and thus this should happen before registering the device on the MEI bus. Hence the mei_cl_add_device() prototype change. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
It should be left to the drivers to enable and disable the device on the
MEI bus when e.g getting probed.
For drivers to be able to safely call the enable and disable hooks, the
mei_cl_ops must be set before it's probed and thus this should happen
before registering the device on the MEI bus. Hence the mei_cl_add_device()
prototype change.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: add mei_cl_write function 2013-04-08T23:55:57+00:00 Tomas Winkler tomas.winkler@intel.com 2013-04-08T18:56:37+00:00 4234a6deb5ab04e50cfd6d72761345727bd2de21 consolidate write code to a specific me client in mei_cl_write function the function is called from mei device write handler and from mei_cl bus send function Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
consolidate write code to a specific me client in mei_cl_write function
the function is called from mei device write handler and from
mei_cl bus send function

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mei: bus: Implement bus driver data setter/getter 2013-03-29T15:45:59+00:00 Samuel Ortiz sameo@linux.intel.com 2013-03-27T15:29:59+00:00 aa6aef216f8aea1a00b56aafc29b8745237a9b62 MEI drivers should be able to carry their private data around. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
MEI drivers should be able to carry their private data around.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>