From: Jesse Barnes Date: Fri, 10 Sep 2010 17:26:01 +0000 (-0700) Subject: drm/i915: split Ironlake CRTC enable/disable code X-Git-Tag: v2.6.37-rc1~92^2~28^2~157 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6be4a6078e41a8ec511dad35d1377bc5338f97be;p=karo-tx-linux.git drm/i915: split Ironlake CRTC enable/disable code This way we can also use it in CRTC prepare/commit. Also makes it easier to split out FDI and other code. Signed-off-by: Jesse Barnes Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a9df2787d752..56ca589a83f5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1848,7 +1848,7 @@ static void gen6_fdi_link_train(struct drm_crtc *crtc) DRM_DEBUG_KMS("FDI train done.\n"); } -static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) +static void ironlake_crtc_enable(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1881,339 +1881,368 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) temp = I915_READ(pipeconf_reg); pipe_bpc = temp & PIPE_BPC_MASK; - /* XXX: When our outputs are all unaware of DPMS modes other than off - * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. - */ - switch (mode) { - case DRM_MODE_DPMS_ON: - case DRM_MODE_DPMS_STANDBY: - case DRM_MODE_DPMS_SUSPEND: - DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); - - if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { - temp = I915_READ(PCH_LVDS); - if ((temp & LVDS_PORT_EN) == 0) { - I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); - POSTING_READ(PCH_LVDS); - } + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { + temp = I915_READ(PCH_LVDS); + if ((temp & LVDS_PORT_EN) == 0) { + I915_WRITE(PCH_LVDS, temp | LVDS_PORT_EN); + POSTING_READ(PCH_LVDS); } + } - if (!HAS_eDP) { - - /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ - temp = I915_READ(fdi_rx_reg); - /* - * make the BPC in FDI Rx be consistent with that in - * pipeconf reg. - */ - temp &= ~(0x7 << 16); - temp |= (pipe_bpc << 11); - temp &= ~(7 << 19); - temp |= (intel_crtc->fdi_lanes - 1) << 19; - I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); - I915_READ(fdi_rx_reg); - udelay(200); + if (!HAS_eDP) { + /* enable PCH FDI RX PLL, wait warmup plus DMI latency */ + temp = I915_READ(fdi_rx_reg); + /* + * make the BPC in FDI Rx be consistent with that in + * pipeconf reg. + */ + temp &= ~(0x7 << 16); + temp |= (pipe_bpc << 11); + temp &= ~(7 << 19); + temp |= (intel_crtc->fdi_lanes - 1) << 19; + I915_WRITE(fdi_rx_reg, temp | FDI_RX_PLL_ENABLE); + I915_READ(fdi_rx_reg); + udelay(200); - /* Switch from Rawclk to PCDclk */ - temp = I915_READ(fdi_rx_reg); - I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); - I915_READ(fdi_rx_reg); - udelay(200); + /* Switch from Rawclk to PCDclk */ + temp = I915_READ(fdi_rx_reg); + I915_WRITE(fdi_rx_reg, temp | FDI_SEL_PCDCLK); + I915_READ(fdi_rx_reg); + udelay(200); - /* Enable CPU FDI TX PLL, always on for Ironlake */ - temp = I915_READ(fdi_tx_reg); - if ((temp & FDI_TX_PLL_ENABLE) == 0) { - I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); - I915_READ(fdi_tx_reg); - udelay(100); - } + /* Enable CPU FDI TX PLL, always on for Ironlake */ + temp = I915_READ(fdi_tx_reg); + if ((temp & FDI_TX_PLL_ENABLE) == 0) { + I915_WRITE(fdi_tx_reg, temp | FDI_TX_PLL_ENABLE); + I915_READ(fdi_tx_reg); + udelay(100); } + } - /* Enable panel fitting for LVDS */ - if (dev_priv->pch_pf_size && - (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) - || HAS_eDP || intel_pch_has_edp(crtc))) { - /* Force use of hard-coded filter coefficients - * as some pre-programmed values are broken, - * e.g. x201. - */ - I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, - PF_ENABLE | PF_FILTER_MED_3x3); - I915_WRITE(pipe ? PFB_WIN_POS : PFA_WIN_POS, - dev_priv->pch_pf_pos); - I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, - dev_priv->pch_pf_size); - } + /* Enable panel fitting for LVDS */ + if (dev_priv->pch_pf_size && + (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) + || HAS_eDP || intel_pch_has_edp(crtc))) { + /* Force use of hard-coded filter coefficients + * as some pre-programmed values are broken, + * e.g. x201. + */ + I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, + PF_ENABLE | PF_FILTER_MED_3x3); + I915_WRITE(pipe ? PFB_WIN_POS : PFA_WIN_POS, + dev_priv->pch_pf_pos); + I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, + dev_priv->pch_pf_size); + } - /* Enable CPU pipe */ - temp = I915_READ(pipeconf_reg); - if ((temp & PIPEACONF_ENABLE) == 0) { - I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); - I915_READ(pipeconf_reg); - udelay(100); - } + /* Enable CPU pipe */ + temp = I915_READ(pipeconf_reg); + if ((temp & PIPEACONF_ENABLE) == 0) { + I915_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); + I915_READ(pipeconf_reg); + udelay(100); + } - /* configure and enable CPU plane */ - temp = I915_READ(dspcntr_reg); - if ((temp & DISPLAY_PLANE_ENABLE) == 0) { - I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); - /* Flush the plane changes */ - I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); - } + /* configure and enable CPU plane */ + temp = I915_READ(dspcntr_reg); + if ((temp & DISPLAY_PLANE_ENABLE) == 0) { + I915_WRITE(dspcntr_reg, temp | DISPLAY_PLANE_ENABLE); + /* Flush the plane changes */ + I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); + } - if (!HAS_eDP) { - /* For PCH output, training FDI link */ - if (IS_GEN6(dev)) - gen6_fdi_link_train(crtc); - else - ironlake_fdi_link_train(crtc); + if (!HAS_eDP) { + /* For PCH output, training FDI link */ + if (IS_GEN6(dev)) + gen6_fdi_link_train(crtc); + else + ironlake_fdi_link_train(crtc); - /* enable PCH DPLL */ - temp = I915_READ(pch_dpll_reg); - if ((temp & DPLL_VCO_ENABLE) == 0) { - I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); - I915_READ(pch_dpll_reg); - } - udelay(200); + /* enable PCH DPLL */ + temp = I915_READ(pch_dpll_reg); + if ((temp & DPLL_VCO_ENABLE) == 0) { + I915_WRITE(pch_dpll_reg, temp | DPLL_VCO_ENABLE); + I915_READ(pch_dpll_reg); + } + udelay(200); - if (HAS_PCH_CPT(dev)) { - /* Be sure PCH DPLL SEL is set */ - temp = I915_READ(PCH_DPLL_SEL); - if (trans_dpll_sel == 0 && - (temp & TRANSA_DPLL_ENABLE) == 0) - temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); - else if (trans_dpll_sel == 1 && - (temp & TRANSB_DPLL_ENABLE) == 0) - temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); - I915_WRITE(PCH_DPLL_SEL, temp); - I915_READ(PCH_DPLL_SEL); - } + if (HAS_PCH_CPT(dev)) { + /* Be sure PCH DPLL SEL is set */ + temp = I915_READ(PCH_DPLL_SEL); + if (trans_dpll_sel == 0 && + (temp & TRANSA_DPLL_ENABLE) == 0) + temp |= (TRANSA_DPLL_ENABLE | TRANSA_DPLLA_SEL); + else if (trans_dpll_sel == 1 && + (temp & TRANSB_DPLL_ENABLE) == 0) + temp |= (TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); + I915_WRITE(PCH_DPLL_SEL, temp); + I915_READ(PCH_DPLL_SEL); + } + /* set transcoder timing */ + I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); + I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg)); + I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg)); - /* set transcoder timing */ - I915_WRITE(trans_htot_reg, I915_READ(cpu_htot_reg)); - I915_WRITE(trans_hblank_reg, I915_READ(cpu_hblank_reg)); - I915_WRITE(trans_hsync_reg, I915_READ(cpu_hsync_reg)); + I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg)); + I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); + I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); - I915_WRITE(trans_vtot_reg, I915_READ(cpu_vtot_reg)); - I915_WRITE(trans_vblank_reg, I915_READ(cpu_vblank_reg)); - I915_WRITE(trans_vsync_reg, I915_READ(cpu_vsync_reg)); + /* enable normal train */ + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | + FDI_TX_ENHANCE_FRAME_ENABLE); + I915_READ(fdi_tx_reg); - /* enable normal train */ - temp = I915_READ(fdi_tx_reg); + temp = I915_READ(fdi_rx_reg); + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_NORMAL_CPT; + } else { temp &= ~FDI_LINK_TRAIN_NONE; - I915_WRITE(fdi_tx_reg, temp | FDI_LINK_TRAIN_NONE | - FDI_TX_ENHANCE_FRAME_ENABLE); - I915_READ(fdi_tx_reg); + temp |= FDI_LINK_TRAIN_NONE; + } + I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); + I915_READ(fdi_rx_reg); - temp = I915_READ(fdi_rx_reg); - if (HAS_PCH_CPT(dev)) { - temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; - temp |= FDI_LINK_TRAIN_NORMAL_CPT; - } else { - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_NONE; + /* wait one idle pattern time */ + udelay(100); + + /* For PCH DP, enable TRANS_DP_CTL */ + if (HAS_PCH_CPT(dev) && + intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { + int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; + int reg; + + reg = I915_READ(trans_dp_ctl); + reg &= ~(TRANS_DP_PORT_SEL_MASK | + TRANS_DP_SYNC_MASK); + reg |= (TRANS_DP_OUTPUT_ENABLE | + TRANS_DP_ENH_FRAMING); + + if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) + reg |= TRANS_DP_HSYNC_ACTIVE_HIGH; + if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) + reg |= TRANS_DP_VSYNC_ACTIVE_HIGH; + + switch (intel_trans_dp_port_sel(crtc)) { + case PCH_DP_B: + reg |= TRANS_DP_PORT_SEL_B; + break; + case PCH_DP_C: + reg |= TRANS_DP_PORT_SEL_C; + break; + case PCH_DP_D: + reg |= TRANS_DP_PORT_SEL_D; + break; + default: + DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); + reg |= TRANS_DP_PORT_SEL_B; + break; } - I915_WRITE(fdi_rx_reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE); - I915_READ(fdi_rx_reg); - /* wait one idle pattern time */ - udelay(100); + I915_WRITE(trans_dp_ctl, reg); + POSTING_READ(trans_dp_ctl); + } - /* For PCH DP, enable TRANS_DP_CTL */ - if (HAS_PCH_CPT(dev) && - intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) { - int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; - int reg; - - reg = I915_READ(trans_dp_ctl); - reg &= ~(TRANS_DP_PORT_SEL_MASK | - TRANS_DP_SYNC_MASK); - reg |= (TRANS_DP_OUTPUT_ENABLE | - TRANS_DP_ENH_FRAMING); - - if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) - reg |= TRANS_DP_HSYNC_ACTIVE_HIGH; - if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) - reg |= TRANS_DP_VSYNC_ACTIVE_HIGH; - - switch (intel_trans_dp_port_sel(crtc)) { - case PCH_DP_B: - reg |= TRANS_DP_PORT_SEL_B; - break; - case PCH_DP_C: - reg |= TRANS_DP_PORT_SEL_C; - break; - case PCH_DP_D: - reg |= TRANS_DP_PORT_SEL_D; - break; - default: - DRM_DEBUG_KMS("Wrong PCH DP port return. Guess port B\n"); - reg |= TRANS_DP_PORT_SEL_B; - break; - } + /* enable PCH transcoder */ + temp = I915_READ(transconf_reg); + /* + * make the BPC in transcoder be consistent with + * that in pipeconf reg. + */ + temp &= ~PIPE_BPC_MASK; + temp |= pipe_bpc; + I915_WRITE(transconf_reg, temp | TRANS_ENABLE); + I915_READ(transconf_reg); - I915_WRITE(trans_dp_ctl, reg); - POSTING_READ(trans_dp_ctl); - } + if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 100)) + DRM_ERROR("failed to enable transcoder\n"); + } - /* enable PCH transcoder */ - temp = I915_READ(transconf_reg); - /* - * make the BPC in transcoder be consistent with - * that in pipeconf reg. - */ - temp &= ~PIPE_BPC_MASK; - temp |= pipe_bpc; - I915_WRITE(transconf_reg, temp | TRANS_ENABLE); - I915_READ(transconf_reg); + intel_crtc_load_lut(crtc); - if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 100)) - DRM_ERROR("failed to enable transcoder\n"); - } + intel_update_fbc(crtc, &crtc->mode); +} - intel_crtc_load_lut(crtc); +static void ironlake_crtc_disable(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int plane = intel_crtc->plane; + int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; + int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; + int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; + int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; + int fdi_tx_reg = (pipe == 0) ? FDI_TXA_CTL : FDI_TXB_CTL; + int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; + int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; + int trans_dpll_sel = (pipe == 0) ? 0 : 1; + u32 temp; + u32 pipe_bpc; - intel_update_fbc(crtc, &crtc->mode); - break; + temp = I915_READ(pipeconf_reg); + pipe_bpc = temp & PIPE_BPC_MASK; - case DRM_MODE_DPMS_OFF: - DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); + drm_vblank_off(dev, pipe); + /* Disable display plane */ + temp = I915_READ(dspcntr_reg); + if ((temp & DISPLAY_PLANE_ENABLE) != 0) { + I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); + /* Flush the plane changes */ + I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); + I915_READ(dspbase_reg); + } - drm_vblank_off(dev, pipe); - /* Disable display plane */ - temp = I915_READ(dspcntr_reg); - if ((temp & DISPLAY_PLANE_ENABLE) != 0) { - I915_WRITE(dspcntr_reg, temp & ~DISPLAY_PLANE_ENABLE); - /* Flush the plane changes */ - I915_WRITE(dspbase_reg, I915_READ(dspbase_reg)); - I915_READ(dspbase_reg); - } + if (dev_priv->cfb_plane == plane && + dev_priv->display.disable_fbc) + dev_priv->display.disable_fbc(dev); - if (dev_priv->cfb_plane == plane && - dev_priv->display.disable_fbc) - dev_priv->display.disable_fbc(dev); + /* disable cpu pipe, disable after all planes disabled */ + temp = I915_READ(pipeconf_reg); + if ((temp & PIPEACONF_ENABLE) != 0) { + I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); - /* disable cpu pipe, disable after all planes disabled */ - temp = I915_READ(pipeconf_reg); - if ((temp & PIPEACONF_ENABLE) != 0) { - I915_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE); + /* wait for cpu pipe off, pipe state */ + if (wait_for((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) == 0, 50)) + DRM_ERROR("failed to turn off cpu pipe\n"); + } else + DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); - /* wait for cpu pipe off, pipe state */ - if (wait_for((I915_READ(pipeconf_reg) & I965_PIPECONF_ACTIVE) == 0, 50)) - DRM_ERROR("failed to turn off cpu pipe\n"); - } else - DRM_DEBUG_KMS("crtc %d is disabled\n", pipe); + udelay(100); - udelay(100); + /* Disable PF */ + I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0); + I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0); - /* Disable PF */ - I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0); - I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0); + /* disable CPU FDI tx and PCH FDI rx */ + temp = I915_READ(fdi_tx_reg); + I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_ENABLE); + I915_READ(fdi_tx_reg); - /* disable CPU FDI tx and PCH FDI rx */ - temp = I915_READ(fdi_tx_reg); - I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_ENABLE); - I915_READ(fdi_tx_reg); + temp = I915_READ(fdi_rx_reg); + /* BPC in FDI rx is consistent with that in pipeconf */ + temp &= ~(0x07 << 16); + temp |= (pipe_bpc << 11); + I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE); + I915_READ(fdi_rx_reg); - temp = I915_READ(fdi_rx_reg); - /* BPC in FDI rx is consistent with that in pipeconf */ - temp &= ~(0x07 << 16); - temp |= (pipe_bpc << 11); - I915_WRITE(fdi_rx_reg, temp & ~FDI_RX_ENABLE); - I915_READ(fdi_rx_reg); + udelay(100); - udelay(100); + /* still set train pattern 1 */ + temp = I915_READ(fdi_tx_reg); + temp &= ~FDI_LINK_TRAIN_NONE; + temp |= FDI_LINK_TRAIN_PATTERN_1; + I915_WRITE(fdi_tx_reg, temp); + POSTING_READ(fdi_tx_reg); - /* still set train pattern 1 */ - temp = I915_READ(fdi_tx_reg); + temp = I915_READ(fdi_rx_reg); + if (HAS_PCH_CPT(dev)) { + temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; + temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; + } else { temp &= ~FDI_LINK_TRAIN_NONE; temp |= FDI_LINK_TRAIN_PATTERN_1; - I915_WRITE(fdi_tx_reg, temp); - POSTING_READ(fdi_tx_reg); + } + I915_WRITE(fdi_rx_reg, temp); + POSTING_READ(fdi_rx_reg); - temp = I915_READ(fdi_rx_reg); - if (HAS_PCH_CPT(dev)) { - temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT; - temp |= FDI_LINK_TRAIN_PATTERN_1_CPT; - } else { - temp &= ~FDI_LINK_TRAIN_NONE; - temp |= FDI_LINK_TRAIN_PATTERN_1; - } - I915_WRITE(fdi_rx_reg, temp); - POSTING_READ(fdi_rx_reg); + udelay(100); + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { + temp = I915_READ(PCH_LVDS); + I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN); + I915_READ(PCH_LVDS); udelay(100); + } - if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { - temp = I915_READ(PCH_LVDS); - I915_WRITE(PCH_LVDS, temp & ~LVDS_PORT_EN); - I915_READ(PCH_LVDS); - udelay(100); - } + /* disable PCH transcoder */ + temp = I915_READ(transconf_reg); + if ((temp & TRANS_ENABLE) != 0) { + I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE); - /* disable PCH transcoder */ - temp = I915_READ(transconf_reg); - if ((temp & TRANS_ENABLE) != 0) { - I915_WRITE(transconf_reg, temp & ~TRANS_ENABLE); + /* wait for PCH transcoder off, transcoder state */ + if (wait_for((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0, 50)) + DRM_ERROR("failed to disable transcoder\n"); + } - /* wait for PCH transcoder off, transcoder state */ - if (wait_for((I915_READ(transconf_reg) & TRANS_STATE_ENABLE) == 0, 50)) - DRM_ERROR("failed to disable transcoder\n"); - } + temp = I915_READ(transconf_reg); + /* BPC in transcoder is consistent with that in pipeconf */ + temp &= ~PIPE_BPC_MASK; + temp |= pipe_bpc; + I915_WRITE(transconf_reg, temp); + I915_READ(transconf_reg); + udelay(100); - temp = I915_READ(transconf_reg); - /* BPC in transcoder is consistent with that in pipeconf */ - temp &= ~PIPE_BPC_MASK; - temp |= pipe_bpc; - I915_WRITE(transconf_reg, temp); - I915_READ(transconf_reg); - udelay(100); + if (HAS_PCH_CPT(dev)) { + /* disable TRANS_DP_CTL */ + int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; + int reg; - if (HAS_PCH_CPT(dev)) { - /* disable TRANS_DP_CTL */ - int trans_dp_ctl = (pipe == 0) ? TRANS_DP_CTL_A : TRANS_DP_CTL_B; - int reg; + reg = I915_READ(trans_dp_ctl); + reg &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); + I915_WRITE(trans_dp_ctl, reg); + POSTING_READ(trans_dp_ctl); - reg = I915_READ(trans_dp_ctl); - reg &= ~(TRANS_DP_OUTPUT_ENABLE | TRANS_DP_PORT_SEL_MASK); - I915_WRITE(trans_dp_ctl, reg); - POSTING_READ(trans_dp_ctl); + /* disable DPLL_SEL */ + temp = I915_READ(PCH_DPLL_SEL); + if (trans_dpll_sel == 0) + temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); + else + temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); + I915_WRITE(PCH_DPLL_SEL, temp); + I915_READ(PCH_DPLL_SEL); - /* disable DPLL_SEL */ - temp = I915_READ(PCH_DPLL_SEL); - if (trans_dpll_sel == 0) - temp &= ~(TRANSA_DPLL_ENABLE | TRANSA_DPLLB_SEL); - else - temp &= ~(TRANSB_DPLL_ENABLE | TRANSB_DPLLB_SEL); - I915_WRITE(PCH_DPLL_SEL, temp); - I915_READ(PCH_DPLL_SEL); + } - } + /* disable PCH DPLL */ + temp = I915_READ(pch_dpll_reg); + I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); + I915_READ(pch_dpll_reg); - /* disable PCH DPLL */ - temp = I915_READ(pch_dpll_reg); - I915_WRITE(pch_dpll_reg, temp & ~DPLL_VCO_ENABLE); - I915_READ(pch_dpll_reg); + /* Switch from PCDclk to Rawclk */ + temp = I915_READ(fdi_rx_reg); + temp &= ~FDI_SEL_PCDCLK; + I915_WRITE(fdi_rx_reg, temp); + I915_READ(fdi_rx_reg); - /* Switch from PCDclk to Rawclk */ - temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_SEL_PCDCLK; - I915_WRITE(fdi_rx_reg, temp); - I915_READ(fdi_rx_reg); + /* Disable CPU FDI TX PLL */ + temp = I915_READ(fdi_tx_reg); + I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); + I915_READ(fdi_tx_reg); + udelay(100); - /* Disable CPU FDI TX PLL */ - temp = I915_READ(fdi_tx_reg); - I915_WRITE(fdi_tx_reg, temp & ~FDI_TX_PLL_ENABLE); - I915_READ(fdi_tx_reg); - udelay(100); + temp = I915_READ(fdi_rx_reg); + temp &= ~FDI_RX_PLL_ENABLE; + I915_WRITE(fdi_rx_reg, temp); + I915_READ(fdi_rx_reg); - temp = I915_READ(fdi_rx_reg); - temp &= ~FDI_RX_PLL_ENABLE; - I915_WRITE(fdi_rx_reg, temp); - I915_READ(fdi_rx_reg); + /* Wait for the clocks to turn off. */ + udelay(100); +} - /* Wait for the clocks to turn off. */ - udelay(100); +static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int plane = intel_crtc->plane; + + /* XXX: When our outputs are all unaware of DPMS modes other than off + * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. + */ + switch (mode) { + case DRM_MODE_DPMS_ON: + case DRM_MODE_DPMS_STANDBY: + case DRM_MODE_DPMS_SUSPEND: + DRM_DEBUG_KMS("crtc %d/%d dpms on\n", pipe, plane); + ironlake_crtc_enable(crtc); + break; + + case DRM_MODE_DPMS_OFF: + DRM_DEBUG_KMS("crtc %d/%d dpms off\n", pipe, plane); + ironlake_crtc_disable(crtc); break; } }