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drm/i915: Extract _intel_{enable,disable}_shared_dpll()

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We have a bit of duplicated code around the DPLL disabling. Extract
that to a new function, and for symmetry also do the same for the
enable direction.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231012123522.26045-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2023-10-12 15:35:22 +03:00
parent 3e7e07c4cf
commit 7880d41c55
1 changed files with 23 additions and 14 deletions
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37
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
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@@ -219,6 +219,26 @@ intel_tc_pll_enable_reg(struct drm_i915_private *i915,
return MG_PLL_ENABLE(tc_port);
}
static void _intel_enable_shared_dpll(struct drm_i915_private *i915,
struct intel_shared_dpll *pll)
{
if (pll->info->power_domain)
pll->wakeref = intel_display_power_get(i915, pll->info->power_domain);
pll->info->funcs->enable(i915, pll);
pll->on = true;
}
static void _intel_disable_shared_dpll(struct drm_i915_private *i915,
struct intel_shared_dpll *pll)
{
pll->info->funcs->disable(i915, pll);
pll->on = false;
if (pll->info->power_domain)
intel_display_power_put(i915, pll->info->power_domain, pll->wakeref);
}
/**
* intel_enable_shared_dpll - enable a CRTC's shared DPLL
* @crtc_state: CRTC, and its state, which has a shared DPLL
@@ -259,11 +279,7 @@ void intel_enable_shared_dpll(const struct intel_crtc_state *crtc_state)
drm_dbg_kms(&i915->drm, "enabling %s\n", pll->info->name);
if (pll->info->power_domain)
pll->wakeref = intel_display_power_get(i915, pll->info->power_domain);
pll->info->funcs->enable(i915, pll);
pll->on = true;
_intel_enable_shared_dpll(i915, pll);
out:
mutex_unlock(&i915->display.dpll.lock);
@@ -308,11 +324,8 @@ void intel_disable_shared_dpll(const struct intel_crtc_state *crtc_state)
goto out;
drm_dbg_kms(&i915->drm, "disabling %s\n", pll->info->name);
pll->info->funcs->disable(i915, pll);
pll->on = false;
if (pll->info->power_domain)
intel_display_power_put(i915, pll->info->power_domain, pll->wakeref);
_intel_disable_shared_dpll(i915, pll);
out:
mutex_unlock(&i915->display.dpll.lock);
@@ -4408,11 +4421,7 @@ static void sanitize_dpll_state(struct drm_i915_private *i915,
"%s enabled but not in use, disabling\n",
pll->info->name);
pll->info->funcs->disable(i915, pll);
pll->on = false;
if (pll->info->power_domain)
intel_display_power_put(i915, pll->info->power_domain, pll->wakeref);
_intel_disable_shared_dpll(i915, pll);
}
void intel_dpll_sanitize_state(struct drm_i915_private *i915)