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yaml
---
r: 329330
b: refs/heads/master
c: 88cefb6
h: refs/heads/master
v: v3
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Daniel Vetter committed Aug 17, 2012
1 parent 3ae6f9b commit 4a9165a
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Showing 2 changed files with 34 additions and 25 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 5d985ac81ab15631570cad83d187565c7fcfd00a
refs/heads/master: 88cefb6c60712982f739f6bbd9f82968aca46033
57 changes: 33 additions & 24 deletions trunk/drivers/gpu/drm/i915/intel_display.c
Original file line number Diff line number Diff line change
Expand Up @@ -2709,11 +2709,10 @@ static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
DRM_DEBUG_KMS("FDI train done.\n");
}

static void ironlake_fdi_pll_enable(struct drm_crtc *crtc)
static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_device *dev = intel_crtc->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
u32 reg, temp;

Expand Down Expand Up @@ -2754,6 +2753,35 @@ static void ironlake_fdi_pll_enable(struct drm_crtc *crtc)
}
}

static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
{
struct drm_device *dev = intel_crtc->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int pipe = intel_crtc->pipe;
u32 reg, temp;

/* Switch from PCDclk to Rawclk */
reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_PCDCLK);

/* Disable CPU FDI TX PLL */
reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);

POSTING_READ(reg);
udelay(100);

reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);

/* Wait for the clocks to turn off. */
POSTING_READ(reg);
udelay(100);
}

static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
Expand Down Expand Up @@ -3201,7 +3229,7 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
is_pch_port = intel_crtc_driving_pch(crtc);

if (is_pch_port)
ironlake_fdi_pll_enable(crtc);
ironlake_fdi_pll_enable(intel_crtc);
else
ironlake_fdi_disable(crtc);

Expand Down Expand Up @@ -3304,26 +3332,7 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
/* disable PCH DPLL */
intel_disable_pch_pll(intel_crtc);

/* Switch from PCDclk to Rawclk */
reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_PCDCLK);

/* Disable CPU FDI TX PLL */
reg = FDI_TX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);

POSTING_READ(reg);
udelay(100);

reg = FDI_RX_CTL(pipe);
temp = I915_READ(reg);
I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);

/* Wait for the clocks to turn off. */
POSTING_READ(reg);
udelay(100);
ironlake_fdi_pll_disable(intel_crtc);

intel_crtc->active = false;
intel_update_watermarks(dev);
Expand Down

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