From e27f299ec3ddd03373bb07db23dd19747eecef72 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 8 Jul 2015 23:45:50 +0300 Subject: [PATCH] drm/i915: Move DPIO port init earlier MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit To implement DPIO lane power gating on CHV we're going to need to access DPIO registers from the cmn power well enable hook. That gets called rather early, so we need to move the DPIO port IOSF sideband port assignment earlier as well. Signed-off-by: Ville Syrjälä Reviewed-by: Deepak S Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 20 ++++++++++++++++++++ drivers/gpu/drm/i915/intel_display.c | 22 ---------------------- 2 files changed, 20 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 2193cc2..097d4ba 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -799,6 +799,24 @@ static void intel_device_info_runtime_init(struct drm_device *dev) info->has_eu_pg ? "y" : "n"); } +static void intel_init_dpio(struct drm_i915_private *dev_priv) +{ + if (!IS_VALLEYVIEW(dev_priv)) + return; + + /* + * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), + * CHV x1 PHY (DP/HDMI D) + * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) + */ + if (IS_CHERRYVIEW(dev_priv)) { + DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; + DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; + } else { + DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; + } +} + /** * i915_driver_load - setup chip and create an initial config * @dev: DRM device @@ -999,6 +1017,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) intel_device_info_runtime_init(dev); + intel_init_dpio(dev_priv); + if (INTEL_INFO(dev)->num_pipes) { ret = drm_vblank_init(dev, INTEL_INFO(dev)->num_pipes); if (ret) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 328d1ee..3c2c76b3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1582,26 +1582,6 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); } -static void intel_init_dpio(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - - if (!IS_VALLEYVIEW(dev)) - return; - - /* - * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), - * CHV x1 PHY (DP/HDMI D) - * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) - */ - if (IS_CHERRYVIEW(dev)) { - DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; - DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; - } else { - DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; - } -} - static void vlv_enable_pll(struct intel_crtc *crtc, const struct intel_crtc_state *pipe_config) { @@ -14767,8 +14747,6 @@ void intel_modeset_init(struct drm_device *dev) } } - intel_init_dpio(dev); - intel_shared_dpll_init(dev); /* Just disable it once at startup */ -- 2.7.4