drm/i915: add support for SBI ops

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With Lynx Point, we need to use SBI to communicate with the display clock
control. This commit adds helper functions to access the registers via
SBI.

v2: de-inline the function and address changes in bits names

v3: protect operations with dpio_lock, increase timeout to 100 for
paranoia sake.

v4: decrease paranoia a bit, as noticed by Chris Wilson

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

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Eugeni Dodonov 2012-05-09 15:37:10 -03:00 • committed by Daniel Vetter

parent 7d4e146f75

commit a416edefbb

1 changed files with 63 additions and 0 deletions

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drivers/gpu/drm/i915/intel_display.c

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