From 342be926e0368018d9c22c4ab54d4a2bc6e9c15f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 13 May 2016 23:41:39 +0300 Subject: [PATCH] drm/i915: Replace bxt_verify_cdclk_state() with a more generic cdclk check MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rather than having a BXT specific function to make sure the DE PLL is enabled after disabling DC6, let's just make sure the current cdclk is the same as what we last programmed. Having another check in bxt_display_core_init() almost immediately after the cdclk init seems redundant, so let's just kill that one. Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1463172100-24715-21-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/intel_display.c | 15 --------------- drivers/gpu/drm/i915/intel_drv.h | 1 - drivers/gpu/drm/i915/intel_runtime_pm.c | 8 ++++---- 3 files changed, 4 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a0b46b5b17b2..d53b670328e4 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5410,21 +5410,6 @@ static void broxton_set_cdclk(struct drm_i915_private *dev_priv, int cdclk) intel_update_cdclk(dev_priv->dev); } -static bool broxton_cdclk_is_enabled(struct drm_i915_private *dev_priv) -{ - if (!(I915_READ(BXT_DE_PLL_ENABLE) & BXT_DE_PLL_PLL_ENABLE)) - return false; - - /* TODO: Check for a valid CDCLK rate */ - - return true; -} - -bool broxton_cdclk_verify_state(struct drm_i915_private *dev_priv) -{ - return broxton_cdclk_is_enabled(dev_priv); -} - void broxton_init_cdclk(struct drm_i915_private *dev_priv) { intel_update_cdclk(dev_priv->dev); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 3854b2ee1077..03d4b1ade2d1 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1270,7 +1270,6 @@ void hsw_enable_pc8(struct drm_i915_private *dev_priv); void hsw_disable_pc8(struct drm_i915_private *dev_priv); void broxton_init_cdclk(struct drm_i915_private *dev_priv); void broxton_uninit_cdclk(struct drm_i915_private *dev_priv); -bool broxton_cdclk_verify_state(struct drm_i915_private *dev_priv); void broxton_ddi_phy_init(struct drm_i915_private *dev_priv); void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv); void broxton_ddi_phy_verify_state(struct drm_i915_private *dev_priv); diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index dc74f38d945f..a1741182f924 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -811,10 +811,11 @@ static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv, { gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); - if (IS_BROXTON(dev_priv)) { - broxton_cdclk_verify_state(dev_priv); + WARN_ON(dev_priv->cdclk_freq != + dev_priv->display.get_display_clock_speed(dev_priv->dev)); + + if (IS_BROXTON(dev_priv)) broxton_ddi_phy_verify_state(dev_priv); - } } static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv, @@ -2288,7 +2289,6 @@ void bxt_display_core_init(struct drm_i915_private *dev_priv, broxton_ddi_phy_init(dev_priv); - broxton_cdclk_verify_state(dev_priv); broxton_ddi_phy_verify_state(dev_priv); if (resume && dev_priv->csr.dmc_payload)