From 19ec6693098c80d3fd693d9defbc7e46e60e1c1b Mon Sep 17 00:00:00 2001 From: Ander Conselvan de Oliveira Date: Mon, 21 Mar 2016 18:00:15 +0200 Subject: [PATCH] drm/i915: Split g4x_crtc_compute_clock() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Split a G4X specific version from i9xx_crtc_compute_clock(). With this the differences between platforms become more obvious. Signed-off-by: Ander Conselvan de Oliveira Reviewed-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1458576016-30348-15-git-send-email-ander.conselvan.de.oliveira@intel.com --- drivers/gpu/drm/i915/intel_display.c | 82 +++++++++++++++++++++++------------- 1 file changed, 53 insertions(+), 29 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 611757a462a7..2764aded4a66 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -565,40 +565,16 @@ static bool intel_pipe_will_have_type(const struct intel_crtc_state *crtc_state, } static const intel_limit_t * -intel_g4x_limit(struct intel_crtc_state *crtc_state) -{ - struct drm_device *dev = crtc_state->base.crtc->dev; - const intel_limit_t *limit; - - if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { - if (intel_is_dual_link_lvds(dev)) - limit = &intel_limits_g4x_dual_channel_lvds; - else - limit = &intel_limits_g4x_single_channel_lvds; - } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI) || - intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_ANALOG)) { - limit = &intel_limits_g4x_hdmi; - } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO)) { - limit = &intel_limits_g4x_sdvo; - } else /* The option is for other outputs */ - limit = &intel_limits_i9xx_sdvo; - - return limit; -} - -static const intel_limit_t * intel_limit(struct intel_crtc_state *crtc_state, int refclk) { struct drm_device *dev = crtc_state->base.crtc->dev; const intel_limit_t *limit; if (IS_BROXTON(dev) || IS_CHERRYVIEW(dev) || IS_VALLEYVIEW(dev) || - HAS_PCH_SPLIT(dev) || IS_GEN2(dev)) + HAS_PCH_SPLIT(dev) || IS_G4X(dev) || IS_GEN2(dev)) limit = NULL; - if (IS_G4X(dev)) { - limit = intel_g4x_limit(crtc_state); - } else if (IS_PINEVIEW(dev)) { + if (IS_PINEVIEW(dev)) { if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) limit = &intel_limits_pineview_lvds; else @@ -7830,6 +7806,49 @@ static int i8xx_crtc_compute_clock(struct intel_crtc *crtc, return 0; } +static int g4x_crtc_compute_clock(struct intel_crtc *crtc, + struct intel_crtc_state *crtc_state) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + const intel_limit_t *limit; + int refclk = 96000; + + memset(&crtc_state->dpll_hw_state, 0, + sizeof(crtc_state->dpll_hw_state)); + + if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS)) { + if (intel_panel_use_ssc(dev_priv)) { + refclk = dev_priv->vbt.lvds_ssc_freq; + DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk); + } + + if (intel_is_dual_link_lvds(dev)) + limit = &intel_limits_g4x_dual_channel_lvds; + else + limit = &intel_limits_g4x_single_channel_lvds; + } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_HDMI) || + intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_ANALOG)) { + limit = &intel_limits_g4x_hdmi; + } else if (intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_SDVO)) { + limit = &intel_limits_g4x_sdvo; + } else { + /* The option is for other outputs */ + limit = &intel_limits_i9xx_sdvo; + } + + if (!crtc_state->clock_set && + !g4x_find_best_dpll(limit, crtc_state, crtc_state->port_clock, + refclk, NULL, &crtc_state->dpll)) { + DRM_ERROR("Couldn't find PLL settings for mode!\n"); + return -EINVAL; + } + + i9xx_compute_dpll(crtc, crtc_state, NULL); + + return 0; +} + static int i9xx_crtc_compute_clock(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state) { @@ -14781,9 +14800,7 @@ static const struct drm_mode_config_funcs intel_mode_funcs = { */ void intel_init_display_hooks(struct drm_i915_private *dev_priv) { - if (HAS_PCH_SPLIT(dev_priv) || IS_G4X(dev_priv)) - dev_priv->display.find_dpll = g4x_find_best_dpll; - else if (IS_PINEVIEW(dev_priv)) + if (IS_PINEVIEW(dev_priv)) dev_priv->display.find_dpll = pnv_find_best_dpll; else dev_priv->display.find_dpll = i9xx_find_best_dpll; @@ -14826,6 +14843,13 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv) dev_priv->display.crtc_compute_clock = vlv_crtc_compute_clock; dev_priv->display.crtc_enable = valleyview_crtc_enable; dev_priv->display.crtc_disable = i9xx_crtc_disable; + } else if (IS_G4X(dev_priv)) { + dev_priv->display.get_pipe_config = i9xx_get_pipe_config; + dev_priv->display.get_initial_plane_config = + i9xx_get_initial_plane_config; + dev_priv->display.crtc_compute_clock = g4x_crtc_compute_clock; + dev_priv->display.crtc_enable = i9xx_crtc_enable; + dev_priv->display.crtc_disable = i9xx_crtc_disable; } else if (!IS_GEN2(dev_priv)) { dev_priv->display.get_pipe_config = i9xx_get_pipe_config; dev_priv->display.get_initial_plane_config = -- 2.11.0