From: Thierry Reding <treding@nvidia.com>
Date: Thu, 12 Dec 2013 08:57:53 +0000 (+0100)
Subject: drm/dp: Allow registering AUX channels as I2C busses
X-Git-Tag: v3.15-rc1~51^2~63^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88759686c702f1fbbb8e737e6231b64a9880db73;p=pandora-kernel.git

drm/dp: Allow registering AUX channels as I2C busses

Implements an I2C-over-AUX I2C adapter on top of the generic drm_dp_aux
infrastructure. It extracts the retry logic from existing drivers, which
should help in porting those drivers to this new helper.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v5:
- move comments partially to to header file
- keep MOT set between I2C messages
- return -EPROTO on short reads

Changes in v4:
- fix typo "bitrate" -> "bit rate"

Changes in v3:
- add back DRM_DEBUG_KMS and DRM_ERROR messages
- embed i2c_adapter within struct drm_dp_aux
- fix typo in comment
---

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