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drm/i915: Extract the HSW/BDW shared dpll init code 

So we can easily provide an alternate implementation in the future.

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 18:06:19 +01:00 committed by Daniel Vetter
parent 7d2c81751c
commit 143b307c43
1 changed files with 9 additions and 3 deletions
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12
drivers/gpu/drm/i915/intel_ddi.c
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@ -1248,10 +1248,8 @@ static const char * const hsw_ddi_pll_names[] = {
"WRPLL 2",
};
void intel_ddi_pll_init(struct drm_device *dev)
static void hsw_shared_dplls_init(struct drm_i915_private *dev_priv)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t val = I915_READ(LCPLL_CTL);
int i;
dev_priv->num_shared_dpll = 2;
@ -1264,6 +1262,14 @@ void intel_ddi_pll_init(struct drm_device *dev)
dev_priv->shared_dplls[i].get_hw_state =
hsw_ddi_pll_get_hw_state;
}
}
void intel_ddi_pll_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t val = I915_READ(LCPLL_CTL);
hsw_shared_dplls_init(dev_priv);
/* The LCPLL register should be turned on by the BIOS. For now let's
* just check its state and print errors in case something is wrong.