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drm/i915: Split shared dpll .get_dplls() into compute and get phases

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Split the DPLL state computation into a separate function
from the current .get_dplls() which currently serves a dual duty
by also reserving the shared DPLLs.

v2: s/false/-EINVAL/ (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220503182242.18797-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2022-05-03 21:22:17 +03:00
parent 0aa93f54f4
commit 92a020747d
3 changed files with 233 additions and 71 deletions
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14
drivers/gpu/drm/i915/display/intel_dpll.c
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@@ -933,7 +933,17 @@ static void i8xx_compute_dpll(struct intel_crtc_state *crtc_state,
static int hsw_crtc_compute_clock(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
return 0;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
struct intel_encoder *encoder =
intel_get_crtc_new_encoder(state, crtc_state);
if (DISPLAY_VER(dev_priv) < 11 &&
intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
return 0;
return intel_compute_shared_dplls(state, crtc, encoder);
}
static int hsw_crtc_get_shared_dpll(struct intel_atomic_state *state,
@@ -1134,7 +1144,7 @@ static int ilk_crtc_compute_clock(struct intel_atomic_state *state,
ilk_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
return 0;
return intel_compute_shared_dplls(state, crtc, NULL);
}
static int ilk_crtc_get_shared_dpll(struct intel_atomic_state *state,