DragonFlyBSD/src 5ef6d7bsys/dev/drm/radeon radeon_i2c.c radeon_connectors.c

drm/radeon: Switch to Linux i2c APIs

* Enable radeon.hw_i2c by default

* Sync some code with Linux 3.19.8 in passing
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+134-355sys/dev/drm/radeon/radeon_i2c.c
+64-106sys/dev/drm/radeon/radeon_connectors.c
+27-110sys/dev/drm/radeon/atombios_dp.c
+18-82sys/dev/drm/radeon/atombios_i2c.c
+7-3sys/dev/drm/radeon/radeon_mode.h
+4-0sys/dev/drm/radeon/radeon_drv.c
+254-6566 files

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