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drm/i915: Specify when the PLL hw state fields are valid 

Not all those fields are valid on a given platform. Make it explicit.

Unions could also be used, but were cluttering some code paths with
if/else ladders.

v2: Don't use anonymous unions (Daniel)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2014-07-29 18:06:16 +01:00 committed by Daniel Vetter
parent aad3d14d25
commit dcfc355213
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_drv.h
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@ -197,10 +197,13 @@ enum intel_dpll_id {
#define I915_NUM_PLLS 2
struct intel_dpll_hw_state {
/* i9xx, pch plls */
uint32_t dpll;
uint32_t dpll_md;
uint32_t fp0;
uint32_t fp1;
/* hsw, bdw */
uint32_t wrpll;
};