diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lvds.c | 1469 |
1 files changed, 723 insertions, 746 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index f4b4aa242df..5e5a72fca5f 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -30,509 +30,294 @@ #include <acpi/button.h> #include <linux/dmi.h> #include <linux/i2c.h> -#include "drmP.h" -#include "drm.h" -#include "drm_crtc.h" -#include "drm_edid.h" +#include <linux/slab.h> +#include <drm/drmP.h> +#include <drm/drm_crtc.h> +#include <drm/drm_edid.h> #include "intel_drv.h" -#include "i915_drm.h" +#include <drm/i915_drm.h> #include "i915_drv.h" #include <linux/acpi.h> /* Private structure for the integrated LVDS support */ -struct intel_lvds_priv { - int fitting_mode; - u32 pfit_control; - u32 pfit_pgm_ratios; +struct intel_lvds_connector { + struct intel_connector base; + + struct notifier_block lid_notifier; }; -/** - * Sets the backlight level. - * - * \param level backlight level, from 0 to intel_lvds_get_max_backlight(). - */ -static void intel_lvds_set_backlight(struct drm_device *dev, int level) +struct intel_lvds_encoder { + struct intel_encoder base; + + bool is_dual_link; + u32 reg; + + struct intel_lvds_connector *attached_connector; +}; + +static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder) +{ + return container_of(encoder, struct intel_lvds_encoder, base.base); +} + +static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector) { + return container_of(connector, struct intel_lvds_connector, base.base); +} + +static bool intel_lvds_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) +{ + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 blc_pwm_ctl, reg; + struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + u32 tmp; + + tmp = I915_READ(lvds_encoder->reg); + + if (!(tmp & LVDS_PORT_EN)) + return false; - if (IS_IRONLAKE(dev)) - reg = BLC_PWM_CPU_CTL; + if (HAS_PCH_CPT(dev)) + *pipe = PORT_TO_PIPE_CPT(tmp); else - reg = BLC_PWM_CTL; + *pipe = PORT_TO_PIPE(tmp); - blc_pwm_ctl = I915_READ(reg) & ~BACKLIGHT_DUTY_CYCLE_MASK; - I915_WRITE(reg, (blc_pwm_ctl | - (level << BACKLIGHT_DUTY_CYCLE_SHIFT))); + return true; } -/** - * Returns the maximum level of the backlight duty cycle field. - */ -static u32 intel_lvds_get_max_backlight(struct drm_device *dev) +static void intel_lvds_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config) { + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 reg; + u32 lvds_reg, tmp, flags = 0; + int dotclock; + + if (HAS_PCH_SPLIT(dev)) + lvds_reg = PCH_LVDS; + else + lvds_reg = LVDS; - if (IS_IRONLAKE(dev)) - reg = BLC_PWM_PCH_CTL2; + tmp = I915_READ(lvds_reg); + if (tmp & LVDS_HSYNC_POLARITY) + flags |= DRM_MODE_FLAG_NHSYNC; + else + flags |= DRM_MODE_FLAG_PHSYNC; + if (tmp & LVDS_VSYNC_POLARITY) + flags |= DRM_MODE_FLAG_NVSYNC; else - reg = BLC_PWM_CTL; + flags |= DRM_MODE_FLAG_PVSYNC; + + pipe_config->adjusted_mode.flags |= flags; + + /* gen2/3 store dither state in pfit control, needs to match */ + if (INTEL_INFO(dev)->gen < 4) { + tmp = I915_READ(PFIT_CONTROL); + + pipe_config->gmch_pfit.control |= tmp & PANEL_8TO6_DITHER_ENABLE; + } - return ((I915_READ(reg) & BACKLIGHT_MODULATION_FREQ_MASK) >> - BACKLIGHT_MODULATION_FREQ_SHIFT) * 2; + dotclock = pipe_config->port_clock; + + if (HAS_PCH_SPLIT(dev_priv->dev)) + ironlake_check_encoder_dotclock(pipe_config, dotclock); + + pipe_config->adjusted_mode.crtc_clock = dotclock; } -/** - * Sets the power state for the panel. - */ -static void intel_lvds_set_power(struct drm_device *dev, bool on) +static void intel_pre_enable_lvds(struct intel_encoder *encoder) { + struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 pp_status, ctl_reg, status_reg; - - if (IS_IRONLAKE(dev)) { - ctl_reg = PCH_PP_CONTROL; - status_reg = PCH_PP_STATUS; + struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); + const struct drm_display_mode *adjusted_mode = + &crtc->config.adjusted_mode; + int pipe = crtc->pipe; + u32 temp; + + if (HAS_PCH_SPLIT(dev)) { + assert_fdi_rx_pll_disabled(dev_priv, pipe); + assert_shared_dpll_disabled(dev_priv, + intel_crtc_to_shared_dpll(crtc)); } else { - ctl_reg = PP_CONTROL; - status_reg = PP_STATUS; + assert_pll_disabled(dev_priv, pipe); } - if (on) { - I915_WRITE(ctl_reg, I915_READ(ctl_reg) | - POWER_TARGET_ON); - do { - pp_status = I915_READ(status_reg); - } while ((pp_status & PP_ON) == 0); + temp = I915_READ(lvds_encoder->reg); + temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; - intel_lvds_set_backlight(dev, dev_priv->backlight_duty_cycle); + if (HAS_PCH_CPT(dev)) { + temp &= ~PORT_TRANS_SEL_MASK; + temp |= PORT_TRANS_SEL_CPT(pipe); } else { - intel_lvds_set_backlight(dev, 0); - - I915_WRITE(ctl_reg, I915_READ(ctl_reg) & - ~POWER_TARGET_ON); - do { - pp_status = I915_READ(status_reg); - } while (pp_status & PP_ON); + if (pipe == 1) { + temp |= LVDS_PIPEB_SELECT; + } else { + temp &= ~LVDS_PIPEB_SELECT; + } } -} -static void intel_lvds_dpms(struct drm_encoder *encoder, int mode) -{ - struct drm_device *dev = encoder->dev; - - if (mode == DRM_MODE_DPMS_ON) - intel_lvds_set_power(dev, true); + /* set the corresponsding LVDS_BORDER bit */ + temp &= ~LVDS_BORDER_ENABLE; + temp |= crtc->config.gmch_pfit.lvds_border_bits; + /* Set the B0-B3 data pairs corresponding to whether we're going to + * set the DPLLs for dual-channel mode or not. + */ + if (lvds_encoder->is_dual_link) + temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; else - intel_lvds_set_power(dev, false); + temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); + + /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) + * appropriately here, but we need to look more thoroughly into how + * panels behave in the two modes. + */ - /* XXX: We never power down the LVDS pairs. */ + /* Set the dithering flag on LVDS as needed, note that there is no + * special lvds dither control bit on pch-split platforms, dithering is + * only controlled through the PIPECONF reg. */ + if (INTEL_INFO(dev)->gen == 4) { + /* Bspec wording suggests that LVDS port dithering only exists + * for 18bpp panels. */ + if (crtc->config.dither && crtc->config.pipe_bpp == 18) + temp |= LVDS_ENABLE_DITHER; + else + temp &= ~LVDS_ENABLE_DITHER; + } + temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); + if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) + temp |= LVDS_HSYNC_POLARITY; + if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) + temp |= LVDS_VSYNC_POLARITY; + + I915_WRITE(lvds_encoder->reg, temp); } -static void intel_lvds_save(struct drm_connector *connector) +/** + * Sets the power state for the panel. + */ +static void intel_enable_lvds(struct intel_encoder *encoder) { - struct drm_device *dev = connector->dev; + struct drm_device *dev = encoder->base.dev; + struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + struct intel_connector *intel_connector = + &lvds_encoder->attached_connector->base; struct drm_i915_private *dev_priv = dev->dev_private; - u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg; - u32 pwm_ctl_reg; - - if (IS_IRONLAKE(dev)) { - pp_on_reg = PCH_PP_ON_DELAYS; - pp_off_reg = PCH_PP_OFF_DELAYS; - pp_ctl_reg = PCH_PP_CONTROL; - pp_div_reg = PCH_PP_DIVISOR; - pwm_ctl_reg = BLC_PWM_CPU_CTL; + u32 ctl_reg, stat_reg; + + if (HAS_PCH_SPLIT(dev)) { + ctl_reg = PCH_PP_CONTROL; + stat_reg = PCH_PP_STATUS; } else { - pp_on_reg = PP_ON_DELAYS; - pp_off_reg = PP_OFF_DELAYS; - pp_ctl_reg = PP_CONTROL; - pp_div_reg = PP_DIVISOR; - pwm_ctl_reg = BLC_PWM_CTL; + ctl_reg = PP_CONTROL; + stat_reg = PP_STATUS; } - dev_priv->savePP_ON = I915_READ(pp_on_reg); - dev_priv->savePP_OFF = I915_READ(pp_off_reg); - dev_priv->savePP_CONTROL = I915_READ(pp_ctl_reg); - dev_priv->savePP_DIVISOR = I915_READ(pp_div_reg); - dev_priv->saveBLC_PWM_CTL = I915_READ(pwm_ctl_reg); - dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL & - BACKLIGHT_DUTY_CYCLE_MASK); + I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) | LVDS_PORT_EN); - /* - * If the light is off at server startup, just make it full brightness - */ - if (dev_priv->backlight_duty_cycle == 0) - dev_priv->backlight_duty_cycle = - intel_lvds_get_max_backlight(dev); + I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON); + POSTING_READ(lvds_encoder->reg); + if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000)) + DRM_ERROR("timed out waiting for panel to power on\n"); + + intel_panel_enable_backlight(intel_connector); } -static void intel_lvds_restore(struct drm_connector *connector) +static void intel_disable_lvds(struct intel_encoder *encoder) { - struct drm_device *dev = connector->dev; + struct drm_device *dev = encoder->base.dev; + struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + struct intel_connector *intel_connector = + &lvds_encoder->attached_connector->base; struct drm_i915_private *dev_priv = dev->dev_private; - u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg; - u32 pwm_ctl_reg; - - if (IS_IRONLAKE(dev)) { - pp_on_reg = PCH_PP_ON_DELAYS; - pp_off_reg = PCH_PP_OFF_DELAYS; - pp_ctl_reg = PCH_PP_CONTROL; - pp_div_reg = PCH_PP_DIVISOR; - pwm_ctl_reg = BLC_PWM_CPU_CTL; + u32 ctl_reg, stat_reg; + + if (HAS_PCH_SPLIT(dev)) { + ctl_reg = PCH_PP_CONTROL; + stat_reg = PCH_PP_STATUS; } else { - pp_on_reg = PP_ON_DELAYS; - pp_off_reg = PP_OFF_DELAYS; - pp_ctl_reg = PP_CONTROL; - pp_div_reg = PP_DIVISOR; - pwm_ctl_reg = BLC_PWM_CTL; + ctl_reg = PP_CONTROL; + stat_reg = PP_STATUS; } - I915_WRITE(pwm_ctl_reg, dev_priv->saveBLC_PWM_CTL); - I915_WRITE(pp_on_reg, dev_priv->savePP_ON); - I915_WRITE(pp_off_reg, dev_priv->savePP_OFF); - I915_WRITE(pp_div_reg, dev_priv->savePP_DIVISOR); - I915_WRITE(pp_ctl_reg, dev_priv->savePP_CONTROL); - if (dev_priv->savePP_CONTROL & POWER_TARGET_ON) - intel_lvds_set_power(dev, true); - else - intel_lvds_set_power(dev, false); + intel_panel_disable_backlight(intel_connector); + + I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON); + if (wait_for((I915_READ(stat_reg) & PP_ON) == 0, 1000)) + DRM_ERROR("timed out waiting for panel to power off\n"); + + I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) & ~LVDS_PORT_EN); + POSTING_READ(lvds_encoder->reg); } -static int intel_lvds_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) +static enum drm_mode_status +intel_lvds_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) { - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_display_mode *fixed_mode = dev_priv->panel_fixed_mode; + struct intel_connector *intel_connector = to_intel_connector(connector); + struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode; - if (fixed_mode) { - if (mode->hdisplay > fixed_mode->hdisplay) - return MODE_PANEL; - if (mode->vdisplay > fixed_mode->vdisplay) - return MODE_PANEL; - } + if (mode->hdisplay > fixed_mode->hdisplay) + return MODE_PANEL; + if (mode->vdisplay > fixed_mode->vdisplay) + return MODE_PANEL; return MODE_OK; } -static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) +static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder, + struct intel_crtc_config *pipe_config) { - /* - * float point operation is not supported . So the PANEL_RATIO_FACTOR - * is defined, which can avoid the float point computation when - * calculating the panel ratio. - */ -#define PANEL_RATIO_FACTOR 8192 - struct drm_device *dev = encoder->dev; + struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); - struct drm_encoder *tmp_encoder; - struct intel_output *intel_output = enc_to_intel_output(encoder); - struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; - u32 pfit_control = 0, pfit_pgm_ratios = 0; - int left_border = 0, right_border = 0, top_border = 0; - int bottom_border = 0; - bool border = 0; - int panel_ratio, desired_ratio, vert_scale, horiz_scale; - int horiz_ratio, vert_ratio; - u32 hsync_width, vsync_width; - u32 hblank_width, vblank_width; - u32 hsync_pos, vsync_pos; + struct intel_lvds_encoder *lvds_encoder = + to_lvds_encoder(&intel_encoder->base); + struct intel_connector *intel_connector = + &lvds_encoder->attached_connector->base; + struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; + struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc; + unsigned int lvds_bpp; /* Should never happen!! */ - if (!IS_I965G(dev) && intel_crtc->pipe == 0) { + if (INTEL_INFO(dev)->gen < 4 && intel_crtc->pipe == 0) { DRM_ERROR("Can't support LVDS on pipe A\n"); return false; } - /* Should never happen!! */ - list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list, head) { - if (tmp_encoder != encoder && tmp_encoder->crtc == encoder->crtc) { - DRM_ERROR("Can't enable LVDS and another " - "encoder on the same pipe\n"); - return false; - } + if ((I915_READ(lvds_encoder->reg) & LVDS_A3_POWER_MASK) == + LVDS_A3_POWER_UP) + lvds_bpp = 8*3; + else + lvds_bpp = 6*3; + + if (lvds_bpp != pipe_config->pipe_bpp && !pipe_config->bw_constrained) { + DRM_DEBUG_KMS("forcing display bpp (was %d) to LVDS (%d)\n", + pipe_config->pipe_bpp, lvds_bpp); + pipe_config->pipe_bpp = lvds_bpp; } - /* If we don't have a panel mode, there is nothing we can do */ - if (dev_priv->panel_fixed_mode == NULL) - return true; + /* - * If we have timings from the BIOS for the panel, put them in + * We have timings from the BIOS for the panel, put them in * to the adjusted mode. The CRTC will be set up for this mode, * with the panel scaling set up to source from the H/VDisplay * of the original mode. */ - if (dev_priv->panel_fixed_mode != NULL) { - adjusted_mode->hdisplay = dev_priv->panel_fixed_mode->hdisplay; - adjusted_mode->hsync_start = - dev_priv->panel_fixed_mode->hsync_start; - adjusted_mode->hsync_end = - dev_priv->panel_fixed_mode->hsync_end; - adjusted_mode->htotal = dev_priv->panel_fixed_mode->htotal; - adjusted_mode->vdisplay = dev_priv->panel_fixed_mode->vdisplay; - adjusted_mode->vsync_start = - dev_priv->panel_fixed_mode->vsync_start; - adjusted_mode->vsync_end = - dev_priv->panel_fixed_mode->vsync_end; - adjusted_mode->vtotal = dev_priv->panel_fixed_mode->vtotal; - adjusted_mode->clock = dev_priv->panel_fixed_mode->clock; - drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); - } + intel_fixed_panel_mode(intel_connector->panel.fixed_mode, + adjusted_mode); - /* Make sure pre-965s set dither correctly */ - if (!IS_I965G(dev)) { - if (dev_priv->panel_wants_dither || dev_priv->lvds_dither) - pfit_control |= PANEL_8TO6_DITHER_ENABLE; - } - - /* Native modes don't need fitting */ - if (adjusted_mode->hdisplay == mode->hdisplay && - adjusted_mode->vdisplay == mode->vdisplay) { - pfit_pgm_ratios = 0; - border = 0; - goto out; - } + if (HAS_PCH_SPLIT(dev)) { + pipe_config->has_pch_encoder = true; - /* full screen scale for now */ - if (IS_IRONLAKE(dev)) - goto out; - - /* 965+ wants fuzzy fitting */ - if (IS_I965G(dev)) - pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) | - PFIT_FILTER_FUZZY; - - hsync_width = adjusted_mode->crtc_hsync_end - - adjusted_mode->crtc_hsync_start; - vsync_width = adjusted_mode->crtc_vsync_end - - adjusted_mode->crtc_vsync_start; - hblank_width = adjusted_mode->crtc_hblank_end - - adjusted_mode->crtc_hblank_start; - vblank_width = adjusted_mode->crtc_vblank_end - - adjusted_mode->crtc_vblank_start; - /* - * Deal with panel fitting options. Figure out how to stretch the - * image based on its aspect ratio & the current panel fitting mode. - */ - panel_ratio = adjusted_mode->hdisplay * PANEL_RATIO_FACTOR / - adjusted_mode->vdisplay; - desired_ratio = mode->hdisplay * PANEL_RATIO_FACTOR / - mode->vdisplay; - /* - * Enable automatic panel scaling for non-native modes so that they fill - * the screen. Should be enabled before the pipe is enabled, according - * to register description and PRM. - * Change the value here to see the borders for debugging - */ - if (!IS_IRONLAKE(dev)) { - I915_WRITE(BCLRPAT_A, 0); - I915_WRITE(BCLRPAT_B, 0); - } - - switch (lvds_priv->fitting_mode) { - case DRM_MODE_SCALE_CENTER: - /* - * For centered modes, we have to calculate border widths & - * heights and modify the values programmed into the CRTC. - */ - left_border = (adjusted_mode->hdisplay - mode->hdisplay) / 2; - right_border = left_border; - if (mode->hdisplay & 1) - right_border++; - top_border = (adjusted_mode->vdisplay - mode->vdisplay) / 2; - bottom_border = top_border; - if (mode->vdisplay & 1) - bottom_border++; - /* Set active & border values */ - adjusted_mode->crtc_hdisplay = mode->hdisplay; - /* Keep the boder be even */ - if (right_border & 1) - right_border++; - /* use the border directly instead of border minuse one */ - adjusted_mode->crtc_hblank_start = mode->hdisplay + - right_border; - /* keep the blank width constant */ - adjusted_mode->crtc_hblank_end = - adjusted_mode->crtc_hblank_start + hblank_width; - /* get the hsync pos relative to hblank start */ - hsync_pos = (hblank_width - hsync_width) / 2; - /* keep the hsync pos be even */ - if (hsync_pos & 1) - hsync_pos++; - adjusted_mode->crtc_hsync_start = - adjusted_mode->crtc_hblank_start + hsync_pos; - /* keep the hsync width constant */ - adjusted_mode->crtc_hsync_end = - adjusted_mode->crtc_hsync_start + hsync_width; - adjusted_mode->crtc_vdisplay = mode->vdisplay; - /* use the border instead of border minus one */ - adjusted_mode->crtc_vblank_start = mode->vdisplay + - bottom_border; - /* keep the vblank width constant */ - adjusted_mode->crtc_vblank_end = - adjusted_mode->crtc_vblank_start + vblank_width; - /* get the vsync start postion relative to vblank start */ - vsync_pos = (vblank_width - vsync_width) / 2; - adjusted_mode->crtc_vsync_start = - adjusted_mode->crtc_vblank_start + vsync_pos; - /* keep the vsync width constant */ - adjusted_mode->crtc_vsync_end = - adjusted_mode->crtc_vsync_start + vsync_width; - border = 1; - break; - case DRM_MODE_SCALE_ASPECT: - /* Scale but preserve the spect ratio */ - pfit_control |= PFIT_ENABLE; - if (IS_I965G(dev)) { - /* 965+ is easy, it does everything in hw */ - if (panel_ratio > desired_ratio) - pfit_control |= PFIT_SCALING_PILLAR; - else if (panel_ratio < desired_ratio) - pfit_control |= PFIT_SCALING_LETTER; - else - pfit_control |= PFIT_SCALING_AUTO; - } else { - /* - * For earlier chips we have to calculate the scaling - * ratio by hand and program it into the - * PFIT_PGM_RATIO register - */ - u32 horiz_bits, vert_bits, bits = 12; - horiz_ratio = mode->hdisplay * PANEL_RATIO_FACTOR/ - adjusted_mode->hdisplay; - vert_ratio = mode->vdisplay * PANEL_RATIO_FACTOR/ - adjusted_mode->vdisplay; - horiz_scale = adjusted_mode->hdisplay * - PANEL_RATIO_FACTOR / mode->hdisplay; - vert_scale = adjusted_mode->vdisplay * - PANEL_RATIO_FACTOR / mode->vdisplay; - - /* retain aspect ratio */ - if (panel_ratio > desired_ratio) { /* Pillar */ - u32 scaled_width; - scaled_width = mode->hdisplay * vert_scale / - PANEL_RATIO_FACTOR; - horiz_ratio = vert_ratio; - pfit_control |= (VERT_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); - /* Pillar will have left/right borders */ - left_border = (adjusted_mode->hdisplay - - scaled_width) / 2; - right_border = left_border; - if (mode->hdisplay & 1) /* odd resolutions */ - right_border++; - /* keep the border be even */ - if (right_border & 1) - right_border++; - adjusted_mode->crtc_hdisplay = scaled_width; - /* use border instead of border minus one */ - adjusted_mode->crtc_hblank_start = - scaled_width + right_border; - /* keep the hblank width constant */ - adjusted_mode->crtc_hblank_end = - adjusted_mode->crtc_hblank_start + - hblank_width; - /* - * get the hsync start pos relative to - * hblank start - */ - hsync_pos = (hblank_width - hsync_width) / 2; - /* keep the hsync_pos be even */ - if (hsync_pos & 1) - hsync_pos++; - adjusted_mode->crtc_hsync_start = - adjusted_mode->crtc_hblank_start + - hsync_pos; - /* keept hsync width constant */ - adjusted_mode->crtc_hsync_end = - adjusted_mode->crtc_hsync_start + - hsync_width; - border = 1; - } else if (panel_ratio < desired_ratio) { /* letter */ - u32 scaled_height = mode->vdisplay * - horiz_scale / PANEL_RATIO_FACTOR; - vert_ratio = horiz_ratio; - pfit_control |= (HORIZ_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); - /* Letterbox will have top/bottom border */ - top_border = (adjusted_mode->vdisplay - - scaled_height) / 2; - bottom_border = top_border; - if (mode->vdisplay & 1) - bottom_border++; - adjusted_mode->crtc_vdisplay = scaled_height; - /* use border instead of border minus one */ - adjusted_mode->crtc_vblank_start = - scaled_height + bottom_border; - /* keep the vblank width constant */ - adjusted_mode->crtc_vblank_end = - adjusted_mode->crtc_vblank_start + - vblank_width; - /* - * get the vsync start pos relative to - * vblank start - */ - vsync_pos = (vblank_width - vsync_width) / 2; - adjusted_mode->crtc_vsync_start = - adjusted_mode->crtc_vblank_start + - vsync_pos; - /* keep the vsync width constant */ - adjusted_mode->crtc_vsync_end = - adjusted_mode->crtc_vsync_start + - vsync_width; - border = 1; - } else { - /* Aspects match, Let hw scale both directions */ - pfit_control |= (VERT_AUTO_SCALE | - HORIZ_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); - } - horiz_bits = (1 << bits) * horiz_ratio / - PANEL_RATIO_FACTOR; - vert_bits = (1 << bits) * vert_ratio / - PANEL_RATIO_FACTOR; - pfit_pgm_ratios = - ((vert_bits << PFIT_VERT_SCALE_SHIFT) & - PFIT_VERT_SCALE_MASK) | - ((horiz_bits << PFIT_HORIZ_SCALE_SHIFT) & - PFIT_HORIZ_SCALE_MASK); - } - break; + intel_pch_panel_fitting(intel_crtc, pipe_config, + intel_connector->panel.fitting_mode); + } else { + intel_gmch_panel_fitting(intel_crtc, pipe_config, + intel_connector->panel.fitting_mode); - case DRM_MODE_SCALE_FULLSCREEN: - /* - * Full scaling, even if it changes the aspect ratio. - * Fortunately this is all done for us in hw. - */ - pfit_control |= PFIT_ENABLE; - if (IS_I965G(dev)) - pfit_control |= PFIT_SCALING_AUTO; - else - pfit_control |= (VERT_AUTO_SCALE | HORIZ_AUTO_SCALE | - VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); - break; - default: - break; } -out: - lvds_priv->pfit_control = pfit_control; - lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios; - /* - * When there exists the border, it means that the LVDS_BORDR - * should be enabled. - */ - if (border) - dev_priv->lvds_border_bits |= LVDS_BORDER_ENABLE; - else - dev_priv->lvds_border_bits &= ~(LVDS_BORDER_ENABLE); /* * XXX: It would be nice to support lower refresh rates on the * panels to reduce power consumption, and perhaps match the @@ -542,82 +327,6 @@ out: return true; } -static void intel_lvds_prepare(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 reg; - - if (IS_IRONLAKE(dev)) - reg = BLC_PWM_CPU_CTL; - else - reg = BLC_PWM_CTL; - - dev_priv->saveBLC_PWM_CTL = I915_READ(reg); - dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL & - BACKLIGHT_DUTY_CYCLE_MASK); - - intel_lvds_set_power(dev, false); -} - -static void intel_lvds_commit( struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - if (dev_priv->backlight_duty_cycle == 0) - dev_priv->backlight_duty_cycle = - intel_lvds_get_max_backlight(dev); - - intel_lvds_set_power(dev, true); -} - -static void intel_lvds_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - struct drm_device *dev = encoder->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_output *intel_output = enc_to_intel_output(encoder); - struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; - - /* - * The LVDS pin pair will already have been turned on in the - * intel_crtc_mode_set since it has a large impact on the DPLL - * settings. - */ - - if (IS_IRONLAKE(dev)) - return; - - /* - * Enable automatic panel scaling so that non-native modes fill the - * screen. Should be enabled before the pipe is enabled, according to - * register description and PRM. - */ - I915_WRITE(PFIT_PGM_RATIOS, lvds_priv->pfit_pgm_ratios); - I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control); -} - -/* Some lid devices report incorrect lid status, assume they're connected */ -static const struct dmi_system_id bad_lid_status[] = { - { - .ident = "Aspire One", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"), - }, - }, - { - .ident = "PC-81005", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "MALATA"), - DMI_MATCH(DMI_PRODUCT_NAME, "PC-81005"), - }, - }, - { } -}; - /** * Detect the LVDS connection. * @@ -625,14 +334,20 @@ static const struct dmi_system_id bad_lid_status[] = { * connected and closed means disconnected. We also send hotplug events as * needed, using lid status notification from the input layer. */ -static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector) +static enum drm_connector_status +intel_lvds_detect(struct drm_connector *connector, bool force) { - enum drm_connector_status status = connector_status_connected; + struct drm_device *dev = connector->dev; + enum drm_connector_status status; - if (!acpi_lid_open() && !dmi_check_system(bad_lid_status)) - status = connector_status_disconnected; + DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", + connector->base.id, connector->name); - return status; + status = intel_panel_detect(dev); + if (status != connector_status_unknown) + return status; + + return connector_status_connected; } /** @@ -640,74 +355,103 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect */ static int intel_lvds_get_modes(struct drm_connector *connector) { + struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector); struct drm_device *dev = connector->dev; - struct intel_output *intel_output = to_intel_output(connector); - struct drm_i915_private *dev_priv = dev->dev_private; - int ret = 0; - - ret = intel_ddc_get_modes(intel_output); + struct drm_display_mode *mode; - if (ret) - return ret; + /* use cached edid if we have one */ + if (!IS_ERR_OR_NULL(lvds_connector->base.edid)) + return drm_add_edid_modes(connector, lvds_connector->base.edid); - /* Didn't get an EDID, so - * Set wide sync ranges so we get all modes - * handed to valid_mode for checking - */ - connector->display_info.min_vfreq = 0; - connector->display_info.max_vfreq = 200; - connector->display_info.min_hfreq = 0; - connector->display_info.max_hfreq = 200; + mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode); + if (mode == NULL) + return 0; - if (dev_priv->panel_fixed_mode != NULL) { - struct drm_display_mode *mode; + drm_mode_probed_add(connector, mode); + return 1; +} - mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode); - drm_mode_probed_add(connector, mode); +static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id) +{ + DRM_INFO("Skipping forced modeset for %s\n", id->ident); + return 1; +} - return 1; - } +/* The GPU hangs up on these systems if modeset is performed on LID open */ +static const struct dmi_system_id intel_no_modeset_on_lid[] = { + { + .callback = intel_no_modeset_on_lid_dmi_callback, + .ident = "Toshiba Tecra A11", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"), + }, + }, - return 0; -} + { } /* terminating entry */ +}; /* - * Lid events. Note the use of 'modeset_on_lid': - * - we set it on lid close, and reset it on open + * Lid events. Note the use of 'modeset': + * - we set it to MODESET_ON_LID_OPEN on lid close, + * and set it to MODESET_DONE on open * - we use it as a "only once" bit (ie we ignore - * duplicate events where it was already properly - * set/reset) - * - the suspend/resume paths will also set it to - * zero, since they restore the mode ("lid open"). + * duplicate events where it was already properly set) + * - the suspend/resume paths will set it to + * MODESET_SUSPENDED and ignore the lid open event, + * because they restore the mode ("lid open"). */ static int intel_lid_notify(struct notifier_block *nb, unsigned long val, void *unused) { - struct drm_i915_private *dev_priv = - container_of(nb, struct drm_i915_private, lid_notifier); - struct drm_device *dev = dev_priv->dev; - struct drm_connector *connector = dev_priv->int_lvds_connector; + struct intel_lvds_connector *lvds_connector = + container_of(nb, struct intel_lvds_connector, lid_notifier); + struct drm_connector *connector = &lvds_connector->base.base; + struct drm_device *dev = connector->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + if (dev->switch_power_state != DRM_SWITCH_POWER_ON) + return NOTIFY_OK; + + mutex_lock(&dev_priv->modeset_restore_lock); + if (dev_priv->modeset_restore == MODESET_SUSPENDED) + goto exit; /* * check and update the status of LVDS connector after receiving * the LID nofication event. */ - if (connector) - connector->status = connector->funcs->detect(connector); + connector->status = connector->funcs->detect(connector, false); + + /* Don't force modeset on machines where it causes a GPU lockup */ + if (dmi_check_system(intel_no_modeset_on_lid)) + goto exit; if (!acpi_lid_open()) { - dev_priv->modeset_on_lid = 1; - return NOTIFY_OK; + /* do modeset on next lid open event */ + dev_priv->modeset_restore = MODESET_ON_LID_OPEN; + goto exit; } - if (!dev_priv->modeset_on_lid) - return NOTIFY_OK; + if (dev_priv->modeset_restore == MODESET_DONE) + goto exit; - dev_priv->modeset_on_lid = 0; + /* + * Some old platform's BIOS love to wreak havoc while the lid is closed. + * We try to detect this here and undo any damage. The split for PCH + * platforms is rather conservative and a bit arbitrary expect that on + * those platforms VGA disabling requires actual legacy VGA I/O access, + * and as part of the cleanup in the hw state restore we also redisable + * the vga plane. + */ + if (!HAS_PCH_SPLIT(dev)) { + drm_modeset_lock_all(dev); + intel_modeset_setup_hw_state(dev, true); + drm_modeset_unlock_all(dev); + } - mutex_lock(&dev->mode_config.mutex); - drm_helper_resume_force_mode(dev); - mutex_unlock(&dev->mode_config.mutex); + dev_priv->modeset_restore = MODESET_DONE; +exit: + mutex_unlock(&dev_priv->modeset_restore_lock); return NOTIFY_OK; } @@ -720,15 +464,17 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val, */ static void intel_lvds_destroy(struct drm_connector *connector) { - struct drm_device *dev = connector->dev; - struct intel_output *intel_output = to_intel_output(connector); - struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_lvds_connector *lvds_connector = + to_lvds_connector(connector); + + if (lvds_connector->lid_notifier.notifier_call) + acpi_lid_notifier_unregister(&lvds_connector->lid_notifier); + + if (!IS_ERR_OR_NULL(lvds_connector->base.edid)) + kfree(lvds_connector->base.edid); + + intel_panel_fini(&lvds_connector->base.panel); - if (intel_output->ddc_bus) - intel_i2c_destroy(intel_output->ddc_bus); - if (dev_priv->lid_notifier.notifier_call) - acpi_lid_notifier_unregister(&dev_priv->lid_notifier); - drm_sysfs_connector_remove(connector); drm_connector_cleanup(connector); kfree(connector); } @@ -737,44 +483,36 @@ static int intel_lvds_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { + struct intel_connector *intel_connector = to_intel_connector(connector); struct drm_device *dev = connector->dev; - struct intel_output *intel_output = - to_intel_output(connector); - if (property == dev->mode_config.scaling_mode_property && - connector->encoder) { - struct drm_crtc *crtc = connector->encoder->crtc; - struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; + if (property == dev->mode_config.scaling_mode_property) { + struct drm_crtc *crtc; + if (value == DRM_MODE_SCALE_NONE) { DRM_DEBUG_KMS("no scaling not supported\n"); - return 0; + return -EINVAL; } - if (lvds_priv->fitting_mode == value) { + + if (intel_connector->panel.fitting_mode == value) { /* the LVDS scaling property is not changed */ return 0; } - lvds_priv->fitting_mode = value; + intel_connector->panel.fitting_mode = value; + + crtc = intel_attached_encoder(connector)->base.crtc; if (crtc && crtc->enabled) { /* * If the CRTC is enabled, the display will be changed * according to the new panel fitting mode. */ - drm_crtc_helper_set_mode(crtc, &crtc->mode, - crtc->x, crtc->y, crtc->fb); + intel_crtc_restore_mode(crtc); } } return 0; } -static const struct drm_encoder_helper_funcs intel_lvds_helper_funcs = { - .dpms = intel_lvds_dpms, - .mode_fixup = intel_lvds_mode_fixup, - .prepare = intel_lvds_prepare, - .mode_set = intel_lvds_mode_set, - .commit = intel_lvds_commit, -}; - static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = { .get_modes = intel_lvds_get_modes, .mode_valid = intel_lvds_mode_valid, @@ -782,28 +520,20 @@ static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs }; static const struct drm_connector_funcs intel_lvds_connector_funcs = { - .dpms = drm_helper_connector_dpms, - .save = intel_lvds_save, - .restore = intel_lvds_restore, + .dpms = intel_connector_dpms, .detect = intel_lvds_detect, .fill_modes = drm_helper_probe_single_connector_modes, .set_property = intel_lvds_set_property, .destroy = intel_lvds_destroy, }; - -static void intel_lvds_enc_destroy(struct drm_encoder *encoder) -{ - drm_encoder_cleanup(encoder); -} - static const struct drm_encoder_funcs intel_lvds_enc_funcs = { - .destroy = intel_lvds_enc_destroy, + .destroy = intel_encoder_destroy, }; static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id) { - DRM_DEBUG_KMS("Skipping LVDS initialization for %s\n", id->ident); + DRM_INFO("Skipping LVDS initialization for %s\n", id->ident); return 1; } @@ -843,6 +573,14 @@ static const struct dmi_system_id intel_no_lvds[] = { }, { .callback = intel_no_lvds_dmi_callback, + .ident = "Dell OptiPlex FX170", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex FX170"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, .ident = "AOpen Mini PC", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "AOpen"), @@ -859,108 +597,275 @@ static const struct dmi_system_id intel_no_lvds[] = { }, { .callback = intel_no_lvds_dmi_callback, + .ident = "AOpen i915GMm-HFS", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), + DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "AOpen i45GMx-I", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), + DMI_MATCH(DMI_BOARD_NAME, "i45GMx-I"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, .ident = "Aopen i945GTt-VFA", .matches = { DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"), }, }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Clientron U800", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Clientron"), + DMI_MATCH(DMI_PRODUCT_NAME, "U800"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Clientron E830", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Clientron"), + DMI_MATCH(DMI_PRODUCT_NAME, "E830"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Asus EeeBox PC EB1007", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Asus AT5NM10T-I", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Hewlett-Packard HP t5740", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, " t5740"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Hewlett-Packard t5745", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Hewlett-Packard st5747", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "MSI Wind Box DC500", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"), + DMI_MATCH(DMI_BOARD_NAME, "MS-7469"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Gigabyte GA-D525TUD", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."), + DMI_MATCH(DMI_BOARD_NAME, "D525TUD"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Supermicro X7SPA-H", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"), + DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Fujitsu Esprimo Q900", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D410PT", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_MATCH(DMI_BOARD_NAME, "D410PT"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D425KT", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D510MO", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "D510MO"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D525MW", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "D525MW"), + }, + }, { } /* terminating entry */ }; -/** - * intel_find_lvds_downclock - find the reduced downclock for LVDS in EDID - * @dev: drm device - * @connector: LVDS connector - * - * Find the reduced downclock for LVDS in EDID. - */ -static void intel_find_lvds_downclock(struct drm_device *dev, - struct drm_connector *connector) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_display_mode *scan, *panel_fixed_mode; - int temp_downclock; - - panel_fixed_mode = dev_priv->panel_fixed_mode; - temp_downclock = panel_fixed_mode->clock; - - mutex_lock(&dev->mode_config.mutex); - list_for_each_entry(scan, &connector->probed_modes, head) { - /* - * If one mode has the same resolution with the fixed_panel - * mode while they have the different refresh rate, it means - * that the reduced downclock is found for the LVDS. In such - * case we can set the different FPx0/1 to dynamically select - * between low and high frequency. - */ - if (scan->hdisplay == panel_fixed_mode->hdisplay && - scan->hsync_start == panel_fixed_mode->hsync_start && - scan->hsync_end == panel_fixed_mode->hsync_end && - scan->htotal == panel_fixed_mode->htotal && - scan->vdisplay == panel_fixed_mode->vdisplay && - scan->vsync_start == panel_fixed_mode->vsync_start && - scan->vsync_end == panel_fixed_mode->vsync_end && - scan->vtotal == panel_fixed_mode->vtotal) { - if (scan->clock < temp_downclock) { - /* - * The downclock is already found. But we - * expect to find the lower downclock. - */ - temp_downclock = scan->clock; - } - } - } - mutex_unlock(&dev->mode_config.mutex); - if (temp_downclock < panel_fixed_mode->clock) { - /* We found the downclock for LVDS. */ - dev_priv->lvds_downclock_avail = 1; - dev_priv->lvds_downclock = temp_downclock; - DRM_DEBUG_KMS("LVDS downclock is found in EDID. " - "Normal clock %dKhz, downclock %dKhz\n", - panel_fixed_mode->clock, temp_downclock); - } - return; -} - /* * Enumerate the child dev array parsed from VBT to check whether * the LVDS is present. * If it is present, return 1. * If it is not present, return false. * If no child dev is parsed from VBT, it assumes that the LVDS is present. - * Note: The addin_offset should also be checked for LVDS panel. - * Only when it is non-zero, it is assumed that it is present. */ -static int lvds_is_present_in_vbt(struct drm_device *dev) +static bool lvds_is_present_in_vbt(struct drm_device *dev, + u8 *i2c_pin) { struct drm_i915_private *dev_priv = dev->dev_private; - struct child_device_config *p_child; - int i, ret; - - if (!dev_priv->child_dev_num) - return 1; - - ret = 0; - for (i = 0; i < dev_priv->child_dev_num; i++) { - p_child = dev_priv->child_dev + i; - /* - * If the device type is not LFP, continue. - * If the device type is 0x22, it is also regarded as LFP. + int i; + + if (!dev_priv->vbt.child_dev_num) + return true; + + for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { + union child_device_config *uchild = dev_priv->vbt.child_dev + i; + struct old_child_dev_config *child = &uchild->old; + + /* If the device type is not LFP, continue. + * We have to check both the new identifiers as well as the + * old for compatibility with some BIOSes. */ - if (p_child->device_type != DEVICE_TYPE_INT_LFP && - p_child->device_type != DEVICE_TYPE_LFP) + if (child->device_type != DEVICE_TYPE_INT_LFP && + child->device_type != DEVICE_TYPE_LFP) continue; - /* The addin_offset should be checked. Only when it is - * non-zero, it is regarded as present. + if (intel_gmbus_is_port_valid(child->i2c_pin)) + *i2c_pin = child->i2c_pin; + + /* However, we cannot trust the BIOS writers to populate + * the VBT correctly. Since LVDS requires additional + * information from AIM blocks, a non-zero addin offset is + * a good indicator that the LVDS is actually present. + */ + if (child->addin_offset) + return true; + + /* But even then some BIOS writers perform some black magic + * and instantiate the device without reference to any + * additional data. Trust that if the VBT was written into + * the OpRegion then they have validated the LVDS's existence. */ - if (p_child->addin_offset) { - ret = 1; - break; + if (dev_priv->opregion.vbt) + return true; + } + + return false; +} + +static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) +{ + DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); + return 1; +} + +static const struct dmi_system_id intel_dual_link_lvds[] = { + { + .callback = intel_dual_link_lvds_callback, + .ident = "Apple MacBook Pro (Core i5/i7 Series)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), + }, + }, + { } /* terminating entry */ +}; + +bool intel_is_dual_link_lvds(struct drm_device *dev) +{ + struct intel_encoder *encoder; + struct intel_lvds_encoder *lvds_encoder; + + list_for_each_entry(encoder, &dev->mode_config.encoder_list, + base.head) { + if (encoder->type == INTEL_OUTPUT_LVDS) { + lvds_encoder = to_lvds_encoder(&encoder->base); + + return lvds_encoder->is_dual_link; } } - return ret; + + return false; +} + +static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder) +{ + struct drm_device *dev = lvds_encoder->base.base.dev; + unsigned int val; + struct drm_i915_private *dev_priv = dev->dev_private; + + /* use the module option value if specified */ + if (i915.lvds_channel_mode > 0) + return i915.lvds_channel_mode == 2; + + if (dmi_check_system(intel_dual_link_lvds)) + return true; + + /* BIOS should set the proper LVDS register value at boot, but + * in reality, it doesn't set the value when the lid is closed; + * we need to check "the value to be set" in VBT when LVDS + * register is uninitialized. + */ + val = I915_READ(lvds_encoder->reg); + if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) + val = dev_priv->vbt.bios_lvds_val; + + return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; +} + +static bool intel_lvds_supported(struct drm_device *dev) +{ + /* With the introduction of the PCH we gained a dedicated + * LVDS presence pin, use it. */ + if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) + return true; + + /* Otherwise LVDS was only attached to mobile products, + * except for the inglorious 830gm */ + if (INTEL_INFO(dev)->gen <= 4 && IS_MOBILE(dev) && !IS_I830(dev)) + return true; + + return false; } /** @@ -973,71 +878,102 @@ static int lvds_is_present_in_vbt(struct drm_device *dev) void intel_lvds_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_output *intel_output; + struct intel_lvds_encoder *lvds_encoder; + struct intel_encoder *intel_encoder; + struct intel_lvds_connector *lvds_connector; + struct intel_connector *intel_connector; struct drm_connector *connector; struct drm_encoder *encoder; struct drm_display_mode *scan; /* *modes, *bios_mode; */ + struct drm_display_mode *fixed_mode = NULL; + struct drm_display_mode *downclock_mode = NULL; + struct edid *edid; struct drm_crtc *crtc; - struct intel_lvds_priv *lvds_priv; u32 lvds; - int pipe, gpio = GPIOC; + int pipe; + u8 pin; + + if (!intel_lvds_supported(dev)) + return; /* Skip init on machines we know falsely report LVDS */ if (dmi_check_system(intel_no_lvds)) return; - if (!lvds_is_present_in_vbt(dev)) { + pin = GMBUS_PORT_PANEL; + if (!lvds_is_present_in_vbt(dev, &pin)) { DRM_DEBUG_KMS("LVDS is not present in VBT\n"); return; } - if (IS_IRONLAKE(dev)) { + if (HAS_PCH_SPLIT(dev)) { if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) return; - if (dev_priv->edp_support) { + if (dev_priv->vbt.edp_support) { DRM_DEBUG_KMS("disable LVDS for eDP support\n"); return; } - gpio = PCH_GPIOC; } - intel_output = kzalloc(sizeof(struct intel_output) + - sizeof(struct intel_lvds_priv), GFP_KERNEL); - if (!intel_output) { + lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL); + if (!lvds_encoder) + return; + + lvds_connector = kzalloc(sizeof(*lvds_connector), GFP_KERNEL); + if (!lvds_connector) { + kfree(lvds_encoder); return; } - connector = &intel_output->base; - encoder = &intel_output->enc; - drm_connector_init(dev, &intel_output->base, &intel_lvds_connector_funcs, + lvds_encoder->attached_connector = lvds_connector; + + intel_encoder = &lvds_encoder->base; + encoder = &intel_encoder->base; + intel_connector = &lvds_connector->base; + connector = &intel_connector->base; + drm_connector_init(dev, &intel_connector->base, &intel_lvds_connector_funcs, DRM_MODE_CONNECTOR_LVDS); - drm_encoder_init(dev, &intel_output->enc, &intel_lvds_enc_funcs, + drm_encoder_init(dev, &intel_encoder->base, &intel_lvds_enc_funcs, DRM_MODE_ENCODER_LVDS); - drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc); - intel_output->type = INTEL_OUTPUT_LVDS; + intel_encoder->enable = intel_enable_lvds; + intel_encoder->pre_enable = intel_pre_enable_lvds; + intel_encoder->compute_config = intel_lvds_compute_config; + intel_encoder->disable = intel_disable_lvds; + intel_encoder->get_hw_state = intel_lvds_get_hw_state; + intel_encoder->get_config = intel_lvds_get_config; + intel_connector->get_hw_state = intel_connector_get_hw_state; + intel_connector->unregister = intel_connector_unregister; + + intel_connector_attach_encoder(intel_connector, intel_encoder); + intel_encoder->type = INTEL_OUTPUT_LVDS; + + intel_encoder->cloneable = 0; + if (HAS_PCH_SPLIT(dev)) + intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); + else if (IS_GEN4(dev)) + intel_encoder->crtc_mask = (1 << 0) | (1 << 1); + else + intel_encoder->crtc_mask = (1 << 1); - intel_output->clone_mask = (1 << INTEL_LVDS_CLONE_BIT); - intel_output->crtc_mask = (1 << 1); - drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs); drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs); connector->display_info.subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = false; connector->doublescan_allowed = false; - lvds_priv = (struct intel_lvds_priv *)(intel_output + 1); - intel_output->dev_priv = lvds_priv; + if (HAS_PCH_SPLIT(dev)) { + lvds_encoder->reg = PCH_LVDS; + } else { + lvds_encoder->reg = LVDS; + } + /* create the scaling mode property */ drm_mode_create_scaling_mode_property(dev); - /* - * the initial panel fitting mode will be FULL_SCREEN. - */ - - drm_connector_attach_property(&intel_output->base, + drm_object_attach_property(&connector->base, dev->mode_config.scaling_mode_property, - DRM_MODE_SCALE_FULLSCREEN); - lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN; + DRM_MODE_SCALE_ASPECT); + intel_connector->panel.fitting_mode = DRM_MODE_SCALE_ASPECT; /* * LVDS discovery: * 1) check for EDID on DDC @@ -1048,41 +984,71 @@ void intel_lvds_init(struct drm_device *dev) * if closed, act like it's not there for now */ - /* Set up the DDC bus. */ - intel_output->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C"); - if (!intel_output->ddc_bus) { - dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration " - "failed.\n"); - goto failed; - } - /* * Attempt to get the fixed panel mode from DDC. Assume that the * preferred mode is the right one. */ - intel_ddc_get_modes(intel_output); + mutex_lock(&dev->mode_config.mutex); + edid = drm_get_edid(connector, intel_gmbus_get_adapter(dev_priv, pin)); + if (edid) { + if (drm_add_edid_modes(connector, edid)) { + drm_mode_connector_update_edid_property(connector, + edid); + } else { + kfree(edid); + edid = ERR_PTR(-EINVAL); + } + } else { + edid = ERR_PTR(-ENOENT); + } + lvds_connector->base.edid = edid; + + if (IS_ERR_OR_NULL(edid)) { + /* Didn't get an EDID, so + * Set wide sync ranges so we get all modes + * handed to valid_mode for checking + */ + connector->display_info.min_vfreq = 0; + connector->display_info.max_vfreq = 200; + connector->display_info.min_hfreq = 0; + connector->display_info.max_hfreq = 200; + } list_for_each_entry(scan, &connector->probed_modes, head) { - mutex_lock(&dev->mode_config.mutex); if (scan->type & DRM_MODE_TYPE_PREFERRED) { - dev_priv->panel_fixed_mode = - drm_mode_duplicate(dev, scan); - mutex_unlock(&dev->mode_config.mutex); - intel_find_lvds_downclock(dev, connector); - goto out; + DRM_DEBUG_KMS("using preferred mode from EDID: "); + drm_mode_debug_printmodeline(scan); + + fixed_mode = drm_mode_duplicate(dev, scan); + if (fixed_mode) { + downclock_mode = + intel_find_panel_downclock(dev, + fixed_mode, connector); + if (downclock_mode != NULL && + i915.lvds_downclock) { + /* We found the downclock for LVDS. */ + dev_priv->lvds_downclock_avail = true; + dev_priv->lvds_downclock = + downclock_mode->clock; + DRM_DEBUG_KMS("LVDS downclock is found" + " in EDID. Normal clock %dKhz, " + "downclock %dKhz\n", + fixed_mode->clock, + dev_priv->lvds_downclock); + } + goto out; + } } - mutex_unlock(&dev->mode_config.mutex); } /* Failed to get EDID, what about VBT? */ - if (dev_priv->lfp_lvds_vbt_mode) { - mutex_lock(&dev->mode_config.mutex); - dev_priv->panel_fixed_mode = - drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode); - mutex_unlock(&dev->mode_config.mutex); - if (dev_priv->panel_fixed_mode) { - dev_priv->panel_fixed_mode->type |= - DRM_MODE_TYPE_PREFERRED; + if (dev_priv->vbt.lfp_lvds_vbt_mode) { + DRM_DEBUG_KMS("using mode from VBT: "); + drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode); + + fixed_mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode); + if (fixed_mode) { + fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; goto out; } } @@ -1094,53 +1060,64 @@ void intel_lvds_init(struct drm_device *dev) */ /* Ironlake: FIXME if still fail, not try pipe mode now */ - if (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) goto failed; lvds = I915_READ(LVDS); pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0; - crtc = intel_get_crtc_from_pipe(dev, pipe); + crtc = intel_get_crtc_for_pipe(dev, pipe); if (crtc && (lvds & LVDS_PORT_EN)) { - dev_priv->panel_fixed_mode = intel_crtc_mode_get(dev, crtc); - if (dev_priv->panel_fixed_mode) { - dev_priv->panel_fixed_mode->type |= - DRM_MODE_TYPE_PREFERRED; + fixed_mode = intel_crtc_mode_get(dev, crtc); + if (fixed_mode) { + DRM_DEBUG_KMS("using current (BIOS) mode: "); + drm_mode_debug_printmodeline(fixed_mode); + fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; goto out; } } /* If we still don't have a mode after all that, give up. */ - if (!dev_priv->panel_fixed_mode) + if (!fixed_mode) goto failed; out: - if (IS_IRONLAKE(dev)) { - u32 pwm; - /* make sure PWM is enabled */ - pwm = I915_READ(BLC_PWM_CPU_CTL2); - pwm |= (PWM_ENABLE | PWM_PIPE_B); - I915_WRITE(BLC_PWM_CPU_CTL2, pwm); - - pwm = I915_READ(BLC_PWM_PCH_CTL1); - pwm |= PWM_PCH_ENABLE; - I915_WRITE(BLC_PWM_PCH_CTL1, pwm); + mutex_unlock(&dev->mode_config.mutex); + + lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder); + DRM_DEBUG_KMS("detected %s-link lvds configuration\n", + lvds_encoder->is_dual_link ? "dual" : "single"); + + /* + * Unlock registers and just + * leave them unlocked + */ + if (HAS_PCH_SPLIT(dev)) { + I915_WRITE(PCH_PP_CONTROL, + I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS); + } else { + I915_WRITE(PP_CONTROL, + I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); } - dev_priv->lid_notifier.notifier_call = intel_lid_notify; - if (acpi_lid_notifier_register(&dev_priv->lid_notifier)) { + lvds_connector->lid_notifier.notifier_call = intel_lid_notify; + if (acpi_lid_notifier_register(&lvds_connector->lid_notifier)) { DRM_DEBUG_KMS("lid notifier registration failed\n"); - dev_priv->lid_notifier.notifier_call = NULL; + lvds_connector->lid_notifier.notifier_call = NULL; } - /* keep the LVDS connector */ - dev_priv->int_lvds_connector = connector; drm_sysfs_connector_add(connector); + + intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); + intel_panel_setup_backlight(connector); + return; failed: + mutex_unlock(&dev->mode_config.mutex); + DRM_DEBUG_KMS("No LVDS modes found, disabling.\n"); - if (intel_output->ddc_bus) - intel_i2c_destroy(intel_output->ddc_bus); drm_connector_cleanup(connector); drm_encoder_cleanup(encoder); - kfree(intel_output); + kfree(lvds_encoder); + kfree(lvds_connector); + return; } |