drm/i915: add DPIO support

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ValleyView puts some display related registers like the PLL controls and
dividers behind the DPIO bus.  Add simple indirect register access
routines to get to those registers.

v2: move new wait_for macro to intel_drv.h (Ben)
    fix DPIO_PKT double write (Ben)
    add debugfs file

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jesse Barnes 2012-03-28 13:39:25 -07:00 • committed by Daniel Vetter

parent 25eb05fc5a

commit 57f350b672

5 changed files with 182 additions and 0 deletions

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48

drivers/gpu/drm/i915/i915_debugfs.c

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4

drivers/gpu/drm/i915/i915_drv.h

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55

drivers/gpu/drm/i915/i915_reg.h

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61

drivers/gpu/drm/i915/intel_display.c

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14

drivers/gpu/drm/i915/intel_drv.h

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