[PATCH 1/7] drm/i915: Introduce intel_release_shared_dpll()

Ander Conselvan de Oliveira
2016-10-04T12:32:24Z

While the details of getting a shared dpll are wrapped by
intel_get_shared_dpll(), the release was still hand rolled into the
modeset code. Fix that by creating an entry point for releasing the
pll and move that code there.

v2: Take old_dpll from crtc->state instead of crtc_state. (CI)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 6 +----
drivers/gpu/drm/i915/intel_dpll_mgr.c | 41 +++++++++++++++--------------------
drivers/gpu/drm/i915/intel_dpll_mgr.h | 11 +++-------
3 files changed, 22 insertions(+), 36 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a366656..28d9d3e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13768,7 +13768,6 @@ 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 drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
int i;
@@ -13789,10 +13788,7 @@ static void intel_modeset_clear_plls(struct drm_atomic_state *state)
if (!old_dpll)
continue;

- if (!shared_dpll)
- shared_dpll = intel_atomic_get_shared_dpll_state(state);
-
- intel_shared_dpll_config_put(shared_dpll, old_dpll, intel_crtc);
+ intel_release_shared_dpll(old_dpll, intel_crtc, state);
}
}

diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 1c59ca5..f1b3feb 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -79,28 +79,6 @@ intel_get_shared_dpll_id(struct drm_i915_private *dev_priv,
return (enum intel_dpll_id) (pll - dev_priv->shared_dplls);
}

-void
-intel_shared_dpll_config_get(struct intel_shared_dpll_config *config,
- struct intel_shared_dpll *pll,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum intel_dpll_id id = intel_get_shared_dpll_id(dev_priv, pll);
-
- config[id].crtc_mask |= 1 << crtc->pipe;
-}
-
-void
-intel_shared_dpll_config_put(struct intel_shared_dpll_config *config,
- struct intel_shared_dpll *pll,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum intel_dpll_id id = intel_get_shared_dpll_id(dev_priv, pll);
-
- config[id].crtc_mask &= ~(1 << crtc->pipe);
-}
-
/* For ILK+ */
void assert_shared_dpll(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll,
@@ -285,7 +263,7 @@ intel_reference_shared_dpll(struct intel_shared_dpll *pll,
DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
pipe_name(crtc->pipe));

- intel_shared_dpll_config_get(shared_dpll, pll, crtc);
+ shared_dpll[pll->id].crtc_mask |= 1 << crtc->pipe;
}

void intel_shared_dpll_commit(struct drm_atomic_state *state)
@@ -1900,3 +1878,20 @@ intel_get_shared_dpll(struct intel_crtc *crtc,

return dpll_mgr->get_dpll(crtc, crtc_state, encoder);
}
+
+/**
+ * intel_release_shared_dpll - end use of DPLL by CRTC in atomic state
+ * @dpll: dpll in use by @crtc
+ * @crtc: crtc
+ * @state: atomic state
+ *
+ */
+void intel_release_shared_dpll(struct intel_shared_dpll *dpll,
+ struct intel_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct intel_shared_dpll_config *shared_dpll_config;
+
+ shared_dpll_config = intel_atomic_get_shared_dpll_state(state);
+ shared_dpll_config[dpll->id].crtc_mask &= ~(1 << crtc->pipe);
+}
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.h b/drivers/gpu/drm/i915/intel_dpll_mgr.h
index f438535..99a82c9 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.h
@@ -138,14 +138,6 @@ intel_get_shared_dpll_by_id(struct drm_i915_private *dev_priv,
enum intel_dpll_id
intel_get_shared_dpll_id(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll);
-void
-intel_shared_dpll_config_get(struct intel_shared_dpll_config *config,
- struct intel_shared_dpll *pll,
- struct intel_crtc *crtc);
-void
-intel_shared_dpll_config_put(struct intel_shared_dpll_config *config,
- struct intel_shared_dpll *pll,
- struct intel_crtc *crtc);
void assert_shared_dpll(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *pll,
bool state);
@@ -154,6 +146,9 @@ void assert_shared_dpll(struct drm_i915_private *dev_priv,
struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
struct intel_crtc_state *state,
struct intel_encoder *encoder);
+void intel_release_shared_dpll(struct intel_shared_dpll *dpll,
+ struct intel_crtc *crtc,
+ struct drm_atomic_state *state);
void intel_prepare_shared_dpll(struct intel_crtc *crtc);
void intel_enable_shared_dpll(struct intel_crtc *crtc);
void intel_disable_shared_dpll(struct intel_crtc *crtc);
--
2.5.5