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drm/i915: Clear shared dpll based on old state, v2.

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Atomic resume was preserving the dpll state because it was required
for clearing pll state correctly. If we look at the old_crtc_state
for pll to clear this is not needed and the hack can be removed.

Changes since v1:
- Rename dpll variable to old_dpll. (Ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1455022343-15222-1-git-send-email-maarten.lankhorst@linux.intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Maarten Lankhorst 2016-02-09 13:02:17 +01:00
parent 1ffedc0677
commit fb1a38a92b
1 changed files with 8 additions and 13 deletions
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21
drivers/gpu/drm/i915/intel_display.c
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@ -13098,8 +13098,6 @@ static void intel_modeset_clear_plls(struct drm_atomic_state *state)
struct drm_device *dev = state->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_shared_dpll_config *shared_dpll = NULL;
struct intel_crtc *intel_crtc;
struct intel_crtc_state *intel_crtc_state;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
int i;
@ -13108,21 +13106,21 @@ static void intel_modeset_clear_plls(struct drm_atomic_state *state)
return;
for_each_crtc_in_state(state, crtc, crtc_state, i) {
int dpll;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int old_dpll = to_intel_crtc_state(crtc->state)->shared_dpll;
intel_crtc = to_intel_crtc(crtc);
intel_crtc_state = to_intel_crtc_state(crtc_state);
dpll = intel_crtc_state->shared_dpll;
if (!needs_modeset(crtc_state) || dpll == DPLL_ID_PRIVATE)
if (!needs_modeset(crtc_state))
continue;
intel_crtc_state->shared_dpll = DPLL_ID_PRIVATE;
to_intel_crtc_state(crtc_state)->shared_dpll = DPLL_ID_PRIVATE;
if (old_dpll == DPLL_ID_PRIVATE)
continue;
if (!shared_dpll)
shared_dpll = intel_atomic_get_shared_dpll_state(state);
shared_dpll[dpll].crtc_mask &= ~(1 << intel_crtc->pipe);
shared_dpll[old_dpll].crtc_mask &= ~(1 << intel_crtc->pipe);
}
}
@ -15927,9 +15925,6 @@ void intel_display_resume(struct drm_device *dev)
state->acquire_ctx = dev->mode_config.acquire_ctx;
/* preserve complete old state, including dpll */
intel_atomic_get_shared_dpll_state(state);
for_each_crtc(dev, crtc) {
struct drm_crtc_state *crtc_state =
drm_atomic_get_crtc_state(state, crtc);