12 Nov, 2014

1 commit

• 1c9498425   drm/radeon: add locking around atombios scratch space usage ... Browse Code »

  While developing MST support I noticed I often got the wrong data
  back from a transaction, in a racy fashion. I noticed the scratch
  space wasn't locked against concurrent users.

  Based on a patch by Alex, but I've made it a bit more obvious when
  things are locked.

  Signed-off-by: Dave Airlie
  Signed-off-by: Alex Deucher
  Cc: stable@vger.kernel.org

  Dave Airlie

  2014-11-12 06:22:26 +0800  

02 Jun, 2014

1 commit

• 831719d62   drm/radeon: add a i2c bus mutex ... Browse Code »

  The i2c and aux buses use the same pads so add
  a mutex to protect access to the pads.

  Signed-off-by: Alex Deucher
  Signed-off-by: Christian König

  Alex Deucher

  2014-06-02 22:25:02 +0800  

08 Jan, 2014

1 commit

• 4cf3b4943   drivers: gpu: Move prototype declaration to header file radeon_mode.h from atombios_i2c.c ... Browse Code »

  Move prototype declaration of function radeon_atom_copy_swap() to header
  file drm/radeon/radeon_mode.h because it is used by more than one file.

  This eliminates the following warnings in drm/radeon/atombios_dp.c:
  drivers/gpu/drm/radeon/atombios_dp.c:53:6: warning: no previous prototype for ‘radeon_atom_copy_swap’ [-Wmissing-prototypes]

  Signed-off-by: Rashika Kheria
  Reviewed-by: Josh Triplett
  Signed-off-by: Alex Deucher

  Rashika Kheria

  2014-01-08 00:45:39 +0800  

05 Dec, 2013

1 commit

• ffd3d3361   drm/radeon/atom: fix bus probes when hw_i2c is set (v2) ... Browse Code »

  When probing the bus, we need to set the byte count
  to 0 rather than 1.

  v2: Don't count the first byte.

  bug:
  https://bugzilla.kernel.org/show_bug.cgi?id=66241

  Signed-off-by: Alex Deucher
  Cc: stable@vger.kernel.org

  Alex Deucher

  2013-12-05 08:56:46 +0800  

16 Nov, 2013

1 commit

• fae009d15   radeon/i2c: do not count reg index in number of i2c byte we are writing. ... Browse Code »

  Useless to count the register index in number of bytes we are writing.

  Fixes a regression with hw i2c enabled.

  Signed-off-by: Jerome Glisse
  Signed-off-by: Alex Deucher
  Cc: stable@vger.kernel.org

  Jerome Glisse

  2013-11-16 04:29:32 +0800  

31 Aug, 2013

2 commits

• d1e3b5564   drm/radeon: atombios hw i2c fixes ... Browse Code »

  These fixes make writes work properly. Previously
  only reads worked. Note that this feature is off
  by default.

  Signed-off-by: Alex Deucher

  Alex Deucher

  2013-08-31 04:31:04 +0800  
• 4543eda52   drm/radeon: fix endian bugs in hw i2c atom routines ... Browse Code »

  Need to swap the data fetched over i2c properly. This
  is the same fix as the endian fix for aux channel
  transactions.

  Signed-off-by: Alex Deucher
  Cc: stable@vger.kernel.org

  Alex Deucher

  2013-08-31 04:30:38 +0800  

03 Oct, 2012

1 commit

• 760285e7e   UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ ... Browse Code »

  Convert #include "..." to #include in drivers/gpu/.

  Signed-off-by: David Howells
  Acked-by: Dave Airlie
  Acked-by: Arnd Bergmann
  Acked-by: Thomas Gleixner
  Acked-by: Paul E. McKenney
  Acked-by: Dave Jones

  David Howells

  2012-10-03 01:01:07 +0800  

03 Feb, 2012

1 commit

• 30388c6e4   drm/radeon/kms/dce3+: add support for hw i2c using atom ... Browse Code »

  Starting with DCE3 hardware, atom contains a general purpose
  ProcessI2cChannelTransaction similar to ProcessAuxChannelTransaction.

  Add an implementation using the atom tables for DCE3+ hardware.

  This should be a little less CPU intensive than bit banging and
  may work better in certain cases.

  Enable it by setting the radeon hw_i2c module parameter to 1. E.g.,
  radeon.hw_i2c=1
  on the kernel command line in grub.

  Signed-off-by: Alex Deucher
  Signed-off-by: Dave Airlie

  Alex Deucher

  2012-02-03 17:38:05 +0800