diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-10-26 12:05:55 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-10-26 18:53:44 +0200 |
| commit | 4da5caa6a6f82cda3193bca855235b87debf78bd (patch) | |
| tree | 6ba1c8129beff272d08e6aab1c16367aeca02de5 /Documentation/i2c/fault-codes | |
| parent | 36e3fa6a38e135e9478a2f75dec9bf6ff1e6480e (diff) | |
drm/dp/mst: Check peer device type before attempting EDID read
Only certain types of pdts have the DDC bus registered, so check for
that before we attempt the EDID read. Othwewise we risk playing around
with an i2c adapter that doesn't actually exist.
Cc: stable@vger.kernel.org
Cc: Carlos Santa <carlos.santa@intel.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Tested-by: Carlos Santa <carlos.santa@intel.com>
Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97666
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1477472755-15288-5-git-send-email-ville.syrjala@linux.intel.com
Diffstat (limited to 'Documentation/i2c/fault-codes')
0 files changed, 0 insertions, 0 deletions