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drm/i915: drop crtc checking from assert_shared_dpll

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The hw state readout code for the pipe config will now check
this for us, so rip out this hand-rolled complexity.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-06-05 13:34:15 +02:00
parent e7b903d252
commit e9d6944ed7
1 changed files with 7 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

35
drivers/gpu/drm/i915/intel_display.c
View file

@ -923,7 +923,6 @@ intel_crtc_to_shared_dpll(struct intel_crtc *crtc)
/* For ILK+ */ /* For ILK+ */
static void assert_shared_dpll(struct drm_i915_private *dev_priv, static void assert_shared_dpll(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll, struct intel_shared_dpll *pll,
struct intel_crtc *crtc,
bool state) bool state)
{ {
u32 val; u32 val;
@ -943,28 +942,9 @@ static void assert_shared_dpll(struct drm_i915_private *dev_priv,
WARN(cur_state != state, WARN(cur_state != state,
"%s assertion failure (expected %s, current %s), val=%08x\n", "%s assertion failure (expected %s, current %s), val=%08x\n",
pll->name, state_string(state), state_string(cur_state), val); pll->name, state_string(state), state_string(cur_state), val);
/* Make sure the selected PLL is correctly attached to the transcoder */
if (crtc && HAS_PCH_CPT(dev_priv->dev)) {
u32 pch_dpll;
pch_dpll = I915_READ(PCH_DPLL_SEL);
cur_state = pll->id == DPLL_ID_PCH_PLL_B;
if (!WARN(((pch_dpll >> (4 * crtc->pipe)) & 1) != cur_state,
"PLL[%d] not attached to this transcoder %c: %08x\n",
cur_state, pipe_name(crtc->pipe), pch_dpll)) {
cur_state = !!(val >> (4*crtc->pipe + 3));
WARN(cur_state != state,
"PLL[%d] not %s on this transcoder %c: %08x\n",
pll->id == DPLL_ID_PCH_PLL_B,
state_string(state),
pipe_name(crtc->pipe),
val);
}
}
} }
#define assert_shared_dpll_enabled(d, p, c) assert_shared_dpll(d, p, c, true) #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
#define assert_shared_dpll_disabled(d, p, c) assert_shared_dpll(d, p, c, false) #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
static void assert_fdi_tx(struct drm_i915_private *dev_priv, static void assert_fdi_tx(struct drm_i915_private *dev_priv,
enum pipe pipe, bool state) enum pipe pipe, bool state)
@ -1434,7 +1414,7 @@ static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
if (pll->active++) { if (pll->active++) {
WARN_ON(!pll->on); WARN_ON(!pll->on);
assert_shared_dpll_enabled(dev_priv, pll, NULL); assert_shared_dpll_enabled(dev_priv, pll);
return; return;
} }
WARN_ON(pll->on); WARN_ON(pll->on);
@ -1462,11 +1442,11 @@ static void intel_disable_shared_dpll(struct intel_crtc *crtc)
crtc->base.base.id); crtc->base.base.id);
if (WARN_ON(pll->active == 0)) { if (WARN_ON(pll->active == 0)) {
assert_shared_dpll_disabled(dev_priv, pll, NULL); assert_shared_dpll_disabled(dev_priv, pll);
return; return;
} }
assert_shared_dpll_enabled(dev_priv, pll, NULL); assert_shared_dpll_enabled(dev_priv, pll);
WARN_ON(!pll->on); WARN_ON(!pll->on);
if (--pll->active) if (--pll->active)
return; return;
@ -1489,8 +1469,7 @@ static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
/* Make sure PCH DPLL is enabled */ /* Make sure PCH DPLL is enabled */
assert_shared_dpll_enabled(dev_priv, assert_shared_dpll_enabled(dev_priv,
intel_crtc_to_shared_dpll(intel_crtc), intel_crtc_to_shared_dpll(intel_crtc));
intel_crtc);
/* FDI must be feeding us bits for PCH ports */ /* FDI must be feeding us bits for PCH ports */
assert_fdi_tx_enabled(dev_priv, pipe); assert_fdi_tx_enabled(dev_priv, pipe);
@ -3112,7 +3091,7 @@ found:
if (pll->active == 0) { if (pll->active == 0) {
DRM_DEBUG_DRIVER("setting up %s\n", pll->name); DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
WARN_ON(pll->on); WARN_ON(pll->on);
assert_shared_dpll_disabled(dev_priv, pll, NULL); assert_shared_dpll_disabled(dev_priv, pll);
/* Wait for the clocks to stabilize before rewriting the regs */ /* Wait for the clocks to stabilize before rewriting the regs */
I915_WRITE(PCH_DPLL(pll->id), dpll & ~DPLL_VCO_ENABLE); I915_WRITE(PCH_DPLL(pll->id), dpll & ~DPLL_VCO_ENABLE);