Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2006-2007 Intel Corporation |
| 3 | * Copyright (c) 2006 Dave Airlie <airlied@linux.ie> |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 22 | * DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | * Authors: |
| 25 | * Eric Anholt <eric@anholt.net> |
| 26 | * Dave Airlie <airlied@linux.ie> |
| 27 | * Jesse Barnes <jesse.barnes@intel.com> |
| 28 | */ |
| 29 | |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 30 | #include <acpi/button.h> |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 31 | #include <linux/dmi.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 32 | #include <linux/i2c.h> |
| 33 | #include "drmP.h" |
| 34 | #include "drm.h" |
| 35 | #include "drm_crtc.h" |
| 36 | #include "drm_edid.h" |
| 37 | #include "intel_drv.h" |
| 38 | #include "i915_drm.h" |
| 39 | #include "i915_drv.h" |
Zhao Yakui | e99da35 | 2009-06-26 09:46:18 +0800 | [diff] [blame] | 40 | #include <linux/acpi.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 41 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 42 | /* Private structure for the integrated LVDS support */ |
| 43 | struct intel_lvds_priv { |
| 44 | int fitting_mode; |
| 45 | u32 pfit_control; |
| 46 | u32 pfit_pgm_ratios; |
| 47 | }; |
| 48 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 49 | /** |
| 50 | * Sets the backlight level. |
| 51 | * |
| 52 | * \param level backlight level, from 0 to intel_lvds_get_max_backlight(). |
| 53 | */ |
| 54 | static void intel_lvds_set_backlight(struct drm_device *dev, int level) |
| 55 | { |
| 56 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 57 | u32 blc_pwm_ctl, reg; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 58 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 59 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 60 | reg = BLC_PWM_CPU_CTL; |
| 61 | else |
| 62 | reg = BLC_PWM_CTL; |
| 63 | |
| 64 | blc_pwm_ctl = I915_READ(reg) & ~BACKLIGHT_DUTY_CYCLE_MASK; |
| 65 | I915_WRITE(reg, (blc_pwm_ctl | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 66 | (level << BACKLIGHT_DUTY_CYCLE_SHIFT))); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Returns the maximum level of the backlight duty cycle field. |
| 71 | */ |
| 72 | static u32 intel_lvds_get_max_backlight(struct drm_device *dev) |
| 73 | { |
| 74 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 75 | u32 reg; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 76 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 77 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 78 | reg = BLC_PWM_PCH_CTL2; |
| 79 | else |
| 80 | reg = BLC_PWM_CTL; |
| 81 | |
| 82 | return ((I915_READ(reg) & BACKLIGHT_MODULATION_FREQ_MASK) >> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 83 | BACKLIGHT_MODULATION_FREQ_SHIFT) * 2; |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Sets the power state for the panel. |
| 88 | */ |
| 89 | static void intel_lvds_set_power(struct drm_device *dev, bool on) |
| 90 | { |
| 91 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 92 | u32 pp_status, ctl_reg, status_reg; |
| 93 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 94 | if (IS_IRONLAKE(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 95 | ctl_reg = PCH_PP_CONTROL; |
| 96 | status_reg = PCH_PP_STATUS; |
| 97 | } else { |
| 98 | ctl_reg = PP_CONTROL; |
| 99 | status_reg = PP_STATUS; |
| 100 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 101 | |
| 102 | if (on) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 103 | I915_WRITE(ctl_reg, I915_READ(ctl_reg) | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 104 | POWER_TARGET_ON); |
| 105 | do { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 106 | pp_status = I915_READ(status_reg); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 107 | } while ((pp_status & PP_ON) == 0); |
| 108 | |
| 109 | intel_lvds_set_backlight(dev, dev_priv->backlight_duty_cycle); |
| 110 | } else { |
| 111 | intel_lvds_set_backlight(dev, 0); |
| 112 | |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 113 | I915_WRITE(ctl_reg, I915_READ(ctl_reg) & |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 114 | ~POWER_TARGET_ON); |
| 115 | do { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 116 | pp_status = I915_READ(status_reg); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 117 | } while (pp_status & PP_ON); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | static void intel_lvds_dpms(struct drm_encoder *encoder, int mode) |
| 122 | { |
| 123 | struct drm_device *dev = encoder->dev; |
| 124 | |
| 125 | if (mode == DRM_MODE_DPMS_ON) |
| 126 | intel_lvds_set_power(dev, true); |
| 127 | else |
| 128 | intel_lvds_set_power(dev, false); |
| 129 | |
| 130 | /* XXX: We never power down the LVDS pairs. */ |
| 131 | } |
| 132 | |
| 133 | static void intel_lvds_save(struct drm_connector *connector) |
| 134 | { |
| 135 | struct drm_device *dev = connector->dev; |
| 136 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 137 | u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg; |
| 138 | u32 pwm_ctl_reg; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 139 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 140 | if (IS_IRONLAKE(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 141 | pp_on_reg = PCH_PP_ON_DELAYS; |
| 142 | pp_off_reg = PCH_PP_OFF_DELAYS; |
| 143 | pp_ctl_reg = PCH_PP_CONTROL; |
| 144 | pp_div_reg = PCH_PP_DIVISOR; |
| 145 | pwm_ctl_reg = BLC_PWM_CPU_CTL; |
| 146 | } else { |
| 147 | pp_on_reg = PP_ON_DELAYS; |
| 148 | pp_off_reg = PP_OFF_DELAYS; |
| 149 | pp_ctl_reg = PP_CONTROL; |
| 150 | pp_div_reg = PP_DIVISOR; |
| 151 | pwm_ctl_reg = BLC_PWM_CTL; |
| 152 | } |
| 153 | |
| 154 | dev_priv->savePP_ON = I915_READ(pp_on_reg); |
| 155 | dev_priv->savePP_OFF = I915_READ(pp_off_reg); |
| 156 | dev_priv->savePP_CONTROL = I915_READ(pp_ctl_reg); |
| 157 | dev_priv->savePP_DIVISOR = I915_READ(pp_div_reg); |
| 158 | dev_priv->saveBLC_PWM_CTL = I915_READ(pwm_ctl_reg); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 159 | dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL & |
| 160 | BACKLIGHT_DUTY_CYCLE_MASK); |
| 161 | |
| 162 | /* |
| 163 | * If the light is off at server startup, just make it full brightness |
| 164 | */ |
| 165 | if (dev_priv->backlight_duty_cycle == 0) |
| 166 | dev_priv->backlight_duty_cycle = |
| 167 | intel_lvds_get_max_backlight(dev); |
| 168 | } |
| 169 | |
| 170 | static void intel_lvds_restore(struct drm_connector *connector) |
| 171 | { |
| 172 | struct drm_device *dev = connector->dev; |
| 173 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 174 | u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg; |
| 175 | u32 pwm_ctl_reg; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 176 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 177 | if (IS_IRONLAKE(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 178 | pp_on_reg = PCH_PP_ON_DELAYS; |
| 179 | pp_off_reg = PCH_PP_OFF_DELAYS; |
| 180 | pp_ctl_reg = PCH_PP_CONTROL; |
| 181 | pp_div_reg = PCH_PP_DIVISOR; |
| 182 | pwm_ctl_reg = BLC_PWM_CPU_CTL; |
| 183 | } else { |
| 184 | pp_on_reg = PP_ON_DELAYS; |
| 185 | pp_off_reg = PP_OFF_DELAYS; |
| 186 | pp_ctl_reg = PP_CONTROL; |
| 187 | pp_div_reg = PP_DIVISOR; |
| 188 | pwm_ctl_reg = BLC_PWM_CTL; |
| 189 | } |
| 190 | |
| 191 | I915_WRITE(pwm_ctl_reg, dev_priv->saveBLC_PWM_CTL); |
| 192 | I915_WRITE(pp_on_reg, dev_priv->savePP_ON); |
| 193 | I915_WRITE(pp_off_reg, dev_priv->savePP_OFF); |
| 194 | I915_WRITE(pp_div_reg, dev_priv->savePP_DIVISOR); |
| 195 | I915_WRITE(pp_ctl_reg, dev_priv->savePP_CONTROL); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 196 | if (dev_priv->savePP_CONTROL & POWER_TARGET_ON) |
| 197 | intel_lvds_set_power(dev, true); |
| 198 | else |
| 199 | intel_lvds_set_power(dev, false); |
| 200 | } |
| 201 | |
| 202 | static int intel_lvds_mode_valid(struct drm_connector *connector, |
| 203 | struct drm_display_mode *mode) |
| 204 | { |
| 205 | struct drm_device *dev = connector->dev; |
| 206 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 207 | struct drm_display_mode *fixed_mode = dev_priv->panel_fixed_mode; |
| 208 | |
| 209 | if (fixed_mode) { |
| 210 | if (mode->hdisplay > fixed_mode->hdisplay) |
| 211 | return MODE_PANEL; |
| 212 | if (mode->vdisplay > fixed_mode->vdisplay) |
| 213 | return MODE_PANEL; |
| 214 | } |
| 215 | |
| 216 | return MODE_OK; |
| 217 | } |
| 218 | |
| 219 | static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, |
| 220 | struct drm_display_mode *mode, |
| 221 | struct drm_display_mode *adjusted_mode) |
| 222 | { |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 223 | /* |
| 224 | * float point operation is not supported . So the PANEL_RATIO_FACTOR |
| 225 | * is defined, which can avoid the float point computation when |
| 226 | * calculating the panel ratio. |
| 227 | */ |
| 228 | #define PANEL_RATIO_FACTOR 8192 |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 229 | struct drm_device *dev = encoder->dev; |
| 230 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 231 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); |
| 232 | struct drm_encoder *tmp_encoder; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 233 | struct intel_output *intel_output = enc_to_intel_output(encoder); |
| 234 | struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; |
| 235 | u32 pfit_control = 0, pfit_pgm_ratios = 0; |
| 236 | int left_border = 0, right_border = 0, top_border = 0; |
| 237 | int bottom_border = 0; |
| 238 | bool border = 0; |
| 239 | int panel_ratio, desired_ratio, vert_scale, horiz_scale; |
| 240 | int horiz_ratio, vert_ratio; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 241 | u32 hsync_width, vsync_width; |
| 242 | u32 hblank_width, vblank_width; |
| 243 | u32 hsync_pos, vsync_pos; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 244 | |
| 245 | /* Should never happen!! */ |
| 246 | if (!IS_I965G(dev) && intel_crtc->pipe == 0) { |
Keith Packard | 1ae8c0a | 2009-06-28 15:42:17 -0700 | [diff] [blame] | 247 | DRM_ERROR("Can't support LVDS on pipe A\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 248 | return false; |
| 249 | } |
| 250 | |
| 251 | /* Should never happen!! */ |
| 252 | list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list, head) { |
| 253 | if (tmp_encoder != encoder && tmp_encoder->crtc == encoder->crtc) { |
Keith Packard | 1ae8c0a | 2009-06-28 15:42:17 -0700 | [diff] [blame] | 254 | DRM_ERROR("Can't enable LVDS and another " |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 255 | "encoder on the same pipe\n"); |
| 256 | return false; |
| 257 | } |
| 258 | } |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 259 | /* If we don't have a panel mode, there is nothing we can do */ |
| 260 | if (dev_priv->panel_fixed_mode == NULL) |
| 261 | return true; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 262 | /* |
| 263 | * If we have timings from the BIOS for the panel, put them in |
| 264 | * to the adjusted mode. The CRTC will be set up for this mode, |
| 265 | * with the panel scaling set up to source from the H/VDisplay |
| 266 | * of the original mode. |
| 267 | */ |
| 268 | if (dev_priv->panel_fixed_mode != NULL) { |
| 269 | adjusted_mode->hdisplay = dev_priv->panel_fixed_mode->hdisplay; |
| 270 | adjusted_mode->hsync_start = |
| 271 | dev_priv->panel_fixed_mode->hsync_start; |
| 272 | adjusted_mode->hsync_end = |
| 273 | dev_priv->panel_fixed_mode->hsync_end; |
| 274 | adjusted_mode->htotal = dev_priv->panel_fixed_mode->htotal; |
| 275 | adjusted_mode->vdisplay = dev_priv->panel_fixed_mode->vdisplay; |
| 276 | adjusted_mode->vsync_start = |
| 277 | dev_priv->panel_fixed_mode->vsync_start; |
| 278 | adjusted_mode->vsync_end = |
| 279 | dev_priv->panel_fixed_mode->vsync_end; |
| 280 | adjusted_mode->vtotal = dev_priv->panel_fixed_mode->vtotal; |
| 281 | adjusted_mode->clock = dev_priv->panel_fixed_mode->clock; |
| 282 | drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); |
| 283 | } |
| 284 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 285 | /* Make sure pre-965s set dither correctly */ |
| 286 | if (!IS_I965G(dev)) { |
| 287 | if (dev_priv->panel_wants_dither || dev_priv->lvds_dither) |
| 288 | pfit_control |= PANEL_8TO6_DITHER_ENABLE; |
| 289 | } |
| 290 | |
| 291 | /* Native modes don't need fitting */ |
| 292 | if (adjusted_mode->hdisplay == mode->hdisplay && |
| 293 | adjusted_mode->vdisplay == mode->vdisplay) { |
| 294 | pfit_pgm_ratios = 0; |
| 295 | border = 0; |
| 296 | goto out; |
| 297 | } |
| 298 | |
Zhenyu Wang | 8dd81a3 | 2009-09-19 14:54:09 +0800 | [diff] [blame] | 299 | /* full screen scale for now */ |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 300 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 8dd81a3 | 2009-09-19 14:54:09 +0800 | [diff] [blame] | 301 | goto out; |
| 302 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 303 | /* 965+ wants fuzzy fitting */ |
| 304 | if (IS_I965G(dev)) |
| 305 | pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) | |
| 306 | PFIT_FILTER_FUZZY; |
| 307 | |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 308 | hsync_width = adjusted_mode->crtc_hsync_end - |
| 309 | adjusted_mode->crtc_hsync_start; |
| 310 | vsync_width = adjusted_mode->crtc_vsync_end - |
| 311 | adjusted_mode->crtc_vsync_start; |
| 312 | hblank_width = adjusted_mode->crtc_hblank_end - |
| 313 | adjusted_mode->crtc_hblank_start; |
| 314 | vblank_width = adjusted_mode->crtc_vblank_end - |
| 315 | adjusted_mode->crtc_vblank_start; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 316 | /* |
| 317 | * Deal with panel fitting options. Figure out how to stretch the |
| 318 | * image based on its aspect ratio & the current panel fitting mode. |
| 319 | */ |
| 320 | panel_ratio = adjusted_mode->hdisplay * PANEL_RATIO_FACTOR / |
| 321 | adjusted_mode->vdisplay; |
| 322 | desired_ratio = mode->hdisplay * PANEL_RATIO_FACTOR / |
| 323 | mode->vdisplay; |
| 324 | /* |
| 325 | * Enable automatic panel scaling for non-native modes so that they fill |
| 326 | * the screen. Should be enabled before the pipe is enabled, according |
| 327 | * to register description and PRM. |
| 328 | * Change the value here to see the borders for debugging |
| 329 | */ |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 330 | if (!IS_IRONLAKE(dev)) { |
Zhenyu Wang | 8dd81a3 | 2009-09-19 14:54:09 +0800 | [diff] [blame] | 331 | I915_WRITE(BCLRPAT_A, 0); |
| 332 | I915_WRITE(BCLRPAT_B, 0); |
| 333 | } |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 334 | |
| 335 | switch (lvds_priv->fitting_mode) { |
Jesse Barnes | 53bd838 | 2009-07-01 10:04:40 -0700 | [diff] [blame] | 336 | case DRM_MODE_SCALE_CENTER: |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 337 | /* |
| 338 | * For centered modes, we have to calculate border widths & |
| 339 | * heights and modify the values programmed into the CRTC. |
| 340 | */ |
| 341 | left_border = (adjusted_mode->hdisplay - mode->hdisplay) / 2; |
| 342 | right_border = left_border; |
| 343 | if (mode->hdisplay & 1) |
| 344 | right_border++; |
| 345 | top_border = (adjusted_mode->vdisplay - mode->vdisplay) / 2; |
| 346 | bottom_border = top_border; |
| 347 | if (mode->vdisplay & 1) |
| 348 | bottom_border++; |
| 349 | /* Set active & border values */ |
| 350 | adjusted_mode->crtc_hdisplay = mode->hdisplay; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 351 | /* Keep the boder be even */ |
| 352 | if (right_border & 1) |
| 353 | right_border++; |
| 354 | /* use the border directly instead of border minuse one */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 355 | adjusted_mode->crtc_hblank_start = mode->hdisplay + |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 356 | right_border; |
| 357 | /* keep the blank width constant */ |
| 358 | adjusted_mode->crtc_hblank_end = |
| 359 | adjusted_mode->crtc_hblank_start + hblank_width; |
| 360 | /* get the hsync pos relative to hblank start */ |
| 361 | hsync_pos = (hblank_width - hsync_width) / 2; |
| 362 | /* keep the hsync pos be even */ |
| 363 | if (hsync_pos & 1) |
| 364 | hsync_pos++; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 365 | adjusted_mode->crtc_hsync_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 366 | adjusted_mode->crtc_hblank_start + hsync_pos; |
| 367 | /* keep the hsync width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 368 | adjusted_mode->crtc_hsync_end = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 369 | adjusted_mode->crtc_hsync_start + hsync_width; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 370 | adjusted_mode->crtc_vdisplay = mode->vdisplay; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 371 | /* use the border instead of border minus one */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 372 | adjusted_mode->crtc_vblank_start = mode->vdisplay + |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 373 | bottom_border; |
| 374 | /* keep the vblank width constant */ |
| 375 | adjusted_mode->crtc_vblank_end = |
| 376 | adjusted_mode->crtc_vblank_start + vblank_width; |
| 377 | /* get the vsync start postion relative to vblank start */ |
| 378 | vsync_pos = (vblank_width - vsync_width) / 2; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 379 | adjusted_mode->crtc_vsync_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 380 | adjusted_mode->crtc_vblank_start + vsync_pos; |
| 381 | /* keep the vsync width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 382 | adjusted_mode->crtc_vsync_end = |
Zhao Yakui | a3e17eb | 2009-10-10 10:42:37 +0800 | [diff] [blame] | 383 | adjusted_mode->crtc_vsync_start + vsync_width; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 384 | border = 1; |
| 385 | break; |
| 386 | case DRM_MODE_SCALE_ASPECT: |
| 387 | /* Scale but preserve the spect ratio */ |
| 388 | pfit_control |= PFIT_ENABLE; |
| 389 | if (IS_I965G(dev)) { |
| 390 | /* 965+ is easy, it does everything in hw */ |
| 391 | if (panel_ratio > desired_ratio) |
| 392 | pfit_control |= PFIT_SCALING_PILLAR; |
| 393 | else if (panel_ratio < desired_ratio) |
| 394 | pfit_control |= PFIT_SCALING_LETTER; |
| 395 | else |
| 396 | pfit_control |= PFIT_SCALING_AUTO; |
| 397 | } else { |
| 398 | /* |
| 399 | * For earlier chips we have to calculate the scaling |
| 400 | * ratio by hand and program it into the |
| 401 | * PFIT_PGM_RATIO register |
| 402 | */ |
| 403 | u32 horiz_bits, vert_bits, bits = 12; |
| 404 | horiz_ratio = mode->hdisplay * PANEL_RATIO_FACTOR/ |
| 405 | adjusted_mode->hdisplay; |
| 406 | vert_ratio = mode->vdisplay * PANEL_RATIO_FACTOR/ |
| 407 | adjusted_mode->vdisplay; |
| 408 | horiz_scale = adjusted_mode->hdisplay * |
| 409 | PANEL_RATIO_FACTOR / mode->hdisplay; |
| 410 | vert_scale = adjusted_mode->vdisplay * |
| 411 | PANEL_RATIO_FACTOR / mode->vdisplay; |
| 412 | |
| 413 | /* retain aspect ratio */ |
| 414 | if (panel_ratio > desired_ratio) { /* Pillar */ |
| 415 | u32 scaled_width; |
| 416 | scaled_width = mode->hdisplay * vert_scale / |
| 417 | PANEL_RATIO_FACTOR; |
| 418 | horiz_ratio = vert_ratio; |
| 419 | pfit_control |= (VERT_AUTO_SCALE | |
| 420 | VERT_INTERP_BILINEAR | |
| 421 | HORIZ_INTERP_BILINEAR); |
| 422 | /* Pillar will have left/right borders */ |
| 423 | left_border = (adjusted_mode->hdisplay - |
| 424 | scaled_width) / 2; |
| 425 | right_border = left_border; |
| 426 | if (mode->hdisplay & 1) /* odd resolutions */ |
| 427 | right_border++; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 428 | /* keep the border be even */ |
| 429 | if (right_border & 1) |
| 430 | right_border++; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 431 | adjusted_mode->crtc_hdisplay = scaled_width; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 432 | /* use border instead of border minus one */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 433 | adjusted_mode->crtc_hblank_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 434 | scaled_width + right_border; |
| 435 | /* keep the hblank width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 436 | adjusted_mode->crtc_hblank_end = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 437 | adjusted_mode->crtc_hblank_start + |
| 438 | hblank_width; |
| 439 | /* |
| 440 | * get the hsync start pos relative to |
| 441 | * hblank start |
| 442 | */ |
| 443 | hsync_pos = (hblank_width - hsync_width) / 2; |
| 444 | /* keep the hsync_pos be even */ |
| 445 | if (hsync_pos & 1) |
| 446 | hsync_pos++; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 447 | adjusted_mode->crtc_hsync_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 448 | adjusted_mode->crtc_hblank_start + |
| 449 | hsync_pos; |
| 450 | /* keept hsync width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 451 | adjusted_mode->crtc_hsync_end = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 452 | adjusted_mode->crtc_hsync_start + |
| 453 | hsync_width; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 454 | border = 1; |
| 455 | } else if (panel_ratio < desired_ratio) { /* letter */ |
| 456 | u32 scaled_height = mode->vdisplay * |
| 457 | horiz_scale / PANEL_RATIO_FACTOR; |
| 458 | vert_ratio = horiz_ratio; |
| 459 | pfit_control |= (HORIZ_AUTO_SCALE | |
| 460 | VERT_INTERP_BILINEAR | |
| 461 | HORIZ_INTERP_BILINEAR); |
| 462 | /* Letterbox will have top/bottom border */ |
| 463 | top_border = (adjusted_mode->vdisplay - |
| 464 | scaled_height) / 2; |
| 465 | bottom_border = top_border; |
| 466 | if (mode->vdisplay & 1) |
| 467 | bottom_border++; |
| 468 | adjusted_mode->crtc_vdisplay = scaled_height; |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 469 | /* use border instead of border minus one */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 470 | adjusted_mode->crtc_vblank_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 471 | scaled_height + bottom_border; |
| 472 | /* keep the vblank width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 473 | adjusted_mode->crtc_vblank_end = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 474 | adjusted_mode->crtc_vblank_start + |
| 475 | vblank_width; |
| 476 | /* |
| 477 | * get the vsync start pos relative to |
| 478 | * vblank start |
| 479 | */ |
| 480 | vsync_pos = (vblank_width - vsync_width) / 2; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 481 | adjusted_mode->crtc_vsync_start = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 482 | adjusted_mode->crtc_vblank_start + |
| 483 | vsync_pos; |
| 484 | /* keep the vsync width constant */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 485 | adjusted_mode->crtc_vsync_end = |
Zhao Yakui | aa0261f | 2009-06-22 15:31:26 +0800 | [diff] [blame] | 486 | adjusted_mode->crtc_vsync_start + |
| 487 | vsync_width; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 488 | border = 1; |
| 489 | } else { |
| 490 | /* Aspects match, Let hw scale both directions */ |
| 491 | pfit_control |= (VERT_AUTO_SCALE | |
| 492 | HORIZ_AUTO_SCALE | |
| 493 | VERT_INTERP_BILINEAR | |
| 494 | HORIZ_INTERP_BILINEAR); |
| 495 | } |
| 496 | horiz_bits = (1 << bits) * horiz_ratio / |
| 497 | PANEL_RATIO_FACTOR; |
| 498 | vert_bits = (1 << bits) * vert_ratio / |
| 499 | PANEL_RATIO_FACTOR; |
| 500 | pfit_pgm_ratios = |
| 501 | ((vert_bits << PFIT_VERT_SCALE_SHIFT) & |
| 502 | PFIT_VERT_SCALE_MASK) | |
| 503 | ((horiz_bits << PFIT_HORIZ_SCALE_SHIFT) & |
| 504 | PFIT_HORIZ_SCALE_MASK); |
| 505 | } |
| 506 | break; |
| 507 | |
| 508 | case DRM_MODE_SCALE_FULLSCREEN: |
| 509 | /* |
| 510 | * Full scaling, even if it changes the aspect ratio. |
| 511 | * Fortunately this is all done for us in hw. |
| 512 | */ |
| 513 | pfit_control |= PFIT_ENABLE; |
| 514 | if (IS_I965G(dev)) |
| 515 | pfit_control |= PFIT_SCALING_AUTO; |
| 516 | else |
| 517 | pfit_control |= (VERT_AUTO_SCALE | HORIZ_AUTO_SCALE | |
| 518 | VERT_INTERP_BILINEAR | |
| 519 | HORIZ_INTERP_BILINEAR); |
| 520 | break; |
| 521 | default: |
| 522 | break; |
| 523 | } |
| 524 | |
| 525 | out: |
| 526 | lvds_priv->pfit_control = pfit_control; |
| 527 | lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 528 | /* |
Zhao Yakui | a3e17eb | 2009-10-10 10:42:37 +0800 | [diff] [blame] | 529 | * When there exists the border, it means that the LVDS_BORDR |
| 530 | * should be enabled. |
| 531 | */ |
| 532 | if (border) |
| 533 | dev_priv->lvds_border_bits |= LVDS_BORDER_ENABLE; |
| 534 | else |
| 535 | dev_priv->lvds_border_bits &= ~(LVDS_BORDER_ENABLE); |
| 536 | /* |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 537 | * XXX: It would be nice to support lower refresh rates on the |
| 538 | * panels to reduce power consumption, and perhaps match the |
| 539 | * user's requested refresh rate. |
| 540 | */ |
| 541 | |
| 542 | return true; |
| 543 | } |
| 544 | |
| 545 | static void intel_lvds_prepare(struct drm_encoder *encoder) |
| 546 | { |
| 547 | struct drm_device *dev = encoder->dev; |
| 548 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 549 | u32 reg; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 550 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 551 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 552 | reg = BLC_PWM_CPU_CTL; |
| 553 | else |
| 554 | reg = BLC_PWM_CTL; |
| 555 | |
| 556 | dev_priv->saveBLC_PWM_CTL = I915_READ(reg); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 557 | dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL & |
| 558 | BACKLIGHT_DUTY_CYCLE_MASK); |
| 559 | |
| 560 | intel_lvds_set_power(dev, false); |
| 561 | } |
| 562 | |
| 563 | static void intel_lvds_commit( struct drm_encoder *encoder) |
| 564 | { |
| 565 | struct drm_device *dev = encoder->dev; |
| 566 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 567 | |
| 568 | if (dev_priv->backlight_duty_cycle == 0) |
| 569 | dev_priv->backlight_duty_cycle = |
| 570 | intel_lvds_get_max_backlight(dev); |
| 571 | |
| 572 | intel_lvds_set_power(dev, true); |
| 573 | } |
| 574 | |
| 575 | static void intel_lvds_mode_set(struct drm_encoder *encoder, |
| 576 | struct drm_display_mode *mode, |
| 577 | struct drm_display_mode *adjusted_mode) |
| 578 | { |
| 579 | struct drm_device *dev = encoder->dev; |
| 580 | struct drm_i915_private *dev_priv = dev->dev_private; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 581 | struct intel_output *intel_output = enc_to_intel_output(encoder); |
| 582 | struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 583 | |
| 584 | /* |
| 585 | * The LVDS pin pair will already have been turned on in the |
| 586 | * intel_crtc_mode_set since it has a large impact on the DPLL |
| 587 | * settings. |
| 588 | */ |
| 589 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 590 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 591 | return; |
| 592 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 593 | /* |
| 594 | * Enable automatic panel scaling so that non-native modes fill the |
| 595 | * screen. Should be enabled before the pipe is enabled, according to |
| 596 | * register description and PRM. |
| 597 | */ |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 598 | I915_WRITE(PFIT_PGM_RATIOS, lvds_priv->pfit_pgm_ratios); |
| 599 | I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 600 | } |
| 601 | |
Jesse Barnes | 7121413 | 2009-09-17 15:45:26 -0700 | [diff] [blame] | 602 | /* Some lid devices report incorrect lid status, assume they're connected */ |
| 603 | static const struct dmi_system_id bad_lid_status[] = { |
| 604 | { |
| 605 | .ident = "Aspire One", |
| 606 | .matches = { |
| 607 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 608 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"), |
| 609 | }, |
| 610 | }, |
| 611 | { } |
| 612 | }; |
| 613 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 614 | /** |
| 615 | * Detect the LVDS connection. |
| 616 | * |
Jesse Barnes | b42d4c5 | 2009-09-10 15:28:04 -0700 | [diff] [blame] | 617 | * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means |
| 618 | * connected and closed means disconnected. We also send hotplug events as |
| 619 | * needed, using lid status notification from the input layer. |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 620 | */ |
| 621 | static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector) |
| 622 | { |
Jesse Barnes | b42d4c5 | 2009-09-10 15:28:04 -0700 | [diff] [blame] | 623 | enum drm_connector_status status = connector_status_connected; |
| 624 | |
Jesse Barnes | 7121413 | 2009-09-17 15:45:26 -0700 | [diff] [blame] | 625 | if (!acpi_lid_open() && !dmi_check_system(bad_lid_status)) |
Jesse Barnes | b42d4c5 | 2009-09-10 15:28:04 -0700 | [diff] [blame] | 626 | status = connector_status_disconnected; |
| 627 | |
| 628 | return status; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 629 | } |
| 630 | |
| 631 | /** |
| 632 | * Return the list of DDC modes if available, or the BIOS fixed mode otherwise. |
| 633 | */ |
| 634 | static int intel_lvds_get_modes(struct drm_connector *connector) |
| 635 | { |
| 636 | struct drm_device *dev = connector->dev; |
| 637 | struct intel_output *intel_output = to_intel_output(connector); |
| 638 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 639 | int ret = 0; |
| 640 | |
| 641 | ret = intel_ddc_get_modes(intel_output); |
| 642 | |
| 643 | if (ret) |
| 644 | return ret; |
| 645 | |
| 646 | /* Didn't get an EDID, so |
| 647 | * Set wide sync ranges so we get all modes |
| 648 | * handed to valid_mode for checking |
| 649 | */ |
| 650 | connector->display_info.min_vfreq = 0; |
| 651 | connector->display_info.max_vfreq = 200; |
| 652 | connector->display_info.min_hfreq = 0; |
| 653 | connector->display_info.max_hfreq = 200; |
| 654 | |
| 655 | if (dev_priv->panel_fixed_mode != NULL) { |
| 656 | struct drm_display_mode *mode; |
| 657 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 658 | mode = drm_mode_duplicate(dev, dev_priv->panel_fixed_mode); |
| 659 | drm_mode_probed_add(connector, mode); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 660 | |
| 661 | return 1; |
| 662 | } |
| 663 | |
| 664 | return 0; |
| 665 | } |
| 666 | |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 667 | /* |
| 668 | * Lid events. Note the use of 'modeset_on_lid': |
| 669 | * - we set it on lid close, and reset it on open |
| 670 | * - we use it as a "only once" bit (ie we ignore |
| 671 | * duplicate events where it was already properly |
| 672 | * set/reset) |
| 673 | * - the suspend/resume paths will also set it to |
| 674 | * zero, since they restore the mode ("lid open"). |
| 675 | */ |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 676 | static int intel_lid_notify(struct notifier_block *nb, unsigned long val, |
| 677 | void *unused) |
| 678 | { |
| 679 | struct drm_i915_private *dev_priv = |
| 680 | container_of(nb, struct drm_i915_private, lid_notifier); |
| 681 | struct drm_device *dev = dev_priv->dev; |
| 682 | |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 683 | if (!acpi_lid_open()) { |
| 684 | dev_priv->modeset_on_lid = 1; |
| 685 | return NOTIFY_OK; |
Jesse Barnes | 06891e2 | 2009-09-14 10:58:48 -0700 | [diff] [blame] | 686 | } |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 687 | |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 688 | if (!dev_priv->modeset_on_lid) |
| 689 | return NOTIFY_OK; |
| 690 | |
| 691 | dev_priv->modeset_on_lid = 0; |
| 692 | |
| 693 | mutex_lock(&dev->mode_config.mutex); |
| 694 | drm_helper_resume_force_mode(dev); |
| 695 | mutex_unlock(&dev->mode_config.mutex); |
Jesse Barnes | 0632419 | 2009-09-10 15:28:05 -0700 | [diff] [blame] | 696 | |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 697 | return NOTIFY_OK; |
| 698 | } |
| 699 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 700 | /** |
| 701 | * intel_lvds_destroy - unregister and free LVDS structures |
| 702 | * @connector: connector to free |
| 703 | * |
| 704 | * Unregister the DDC bus for this connector then free the driver private |
| 705 | * structure. |
| 706 | */ |
| 707 | static void intel_lvds_destroy(struct drm_connector *connector) |
| 708 | { |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 709 | struct drm_device *dev = connector->dev; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 710 | struct intel_output *intel_output = to_intel_output(connector); |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 711 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 712 | |
| 713 | if (intel_output->ddc_bus) |
| 714 | intel_i2c_destroy(intel_output->ddc_bus); |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 715 | if (dev_priv->lid_notifier.notifier_call) |
| 716 | acpi_lid_notifier_unregister(&dev_priv->lid_notifier); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 717 | drm_sysfs_connector_remove(connector); |
| 718 | drm_connector_cleanup(connector); |
| 719 | kfree(connector); |
| 720 | } |
| 721 | |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 722 | static int intel_lvds_set_property(struct drm_connector *connector, |
| 723 | struct drm_property *property, |
| 724 | uint64_t value) |
| 725 | { |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 726 | struct drm_device *dev = connector->dev; |
| 727 | struct intel_output *intel_output = |
| 728 | to_intel_output(connector); |
| 729 | |
| 730 | if (property == dev->mode_config.scaling_mode_property && |
| 731 | connector->encoder) { |
| 732 | struct drm_crtc *crtc = connector->encoder->crtc; |
| 733 | struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; |
Jesse Barnes | 53bd838 | 2009-07-01 10:04:40 -0700 | [diff] [blame] | 734 | if (value == DRM_MODE_SCALE_NONE) { |
| 735 | DRM_DEBUG_KMS("no scaling not supported\n"); |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 736 | return 0; |
| 737 | } |
| 738 | if (lvds_priv->fitting_mode == value) { |
| 739 | /* the LVDS scaling property is not changed */ |
| 740 | return 0; |
| 741 | } |
| 742 | lvds_priv->fitting_mode = value; |
| 743 | if (crtc && crtc->enabled) { |
| 744 | /* |
| 745 | * If the CRTC is enabled, the display will be changed |
| 746 | * according to the new panel fitting mode. |
| 747 | */ |
| 748 | drm_crtc_helper_set_mode(crtc, &crtc->mode, |
| 749 | crtc->x, crtc->y, crtc->fb); |
| 750 | } |
| 751 | } |
| 752 | |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 753 | return 0; |
| 754 | } |
| 755 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 756 | static const struct drm_encoder_helper_funcs intel_lvds_helper_funcs = { |
| 757 | .dpms = intel_lvds_dpms, |
| 758 | .mode_fixup = intel_lvds_mode_fixup, |
| 759 | .prepare = intel_lvds_prepare, |
| 760 | .mode_set = intel_lvds_mode_set, |
| 761 | .commit = intel_lvds_commit, |
| 762 | }; |
| 763 | |
| 764 | static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = { |
| 765 | .get_modes = intel_lvds_get_modes, |
| 766 | .mode_valid = intel_lvds_mode_valid, |
| 767 | .best_encoder = intel_best_encoder, |
| 768 | }; |
| 769 | |
| 770 | static const struct drm_connector_funcs intel_lvds_connector_funcs = { |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 771 | .dpms = drm_helper_connector_dpms, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 772 | .save = intel_lvds_save, |
| 773 | .restore = intel_lvds_restore, |
| 774 | .detect = intel_lvds_detect, |
| 775 | .fill_modes = drm_helper_probe_single_connector_modes, |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 776 | .set_property = intel_lvds_set_property, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 777 | .destroy = intel_lvds_destroy, |
| 778 | }; |
| 779 | |
| 780 | |
| 781 | static void intel_lvds_enc_destroy(struct drm_encoder *encoder) |
| 782 | { |
| 783 | drm_encoder_cleanup(encoder); |
| 784 | } |
| 785 | |
| 786 | static const struct drm_encoder_funcs intel_lvds_enc_funcs = { |
| 787 | .destroy = intel_lvds_enc_destroy, |
| 788 | }; |
| 789 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 790 | static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id) |
| 791 | { |
Zhao Yakui | 8a4c47f | 2009-07-20 13:48:04 +0800 | [diff] [blame] | 792 | DRM_DEBUG_KMS("Skipping LVDS initialization for %s\n", id->ident); |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 793 | return 1; |
| 794 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 795 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 796 | /* These systems claim to have LVDS, but really don't */ |
Jaswinder Singh Rajput | 93c05f2 | 2009-06-04 09:41:19 +1000 | [diff] [blame] | 797 | static const struct dmi_system_id intel_no_lvds[] = { |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 798 | { |
| 799 | .callback = intel_no_lvds_dmi_callback, |
| 800 | .ident = "Apple Mac Mini (Core series)", |
| 801 | .matches = { |
Keith Packard | 98acd46 | 2009-06-14 12:31:58 -0700 | [diff] [blame] | 802 | DMI_MATCH(DMI_SYS_VENDOR, "Apple"), |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 803 | DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), |
| 804 | }, |
| 805 | }, |
| 806 | { |
| 807 | .callback = intel_no_lvds_dmi_callback, |
| 808 | .ident = "Apple Mac Mini (Core 2 series)", |
| 809 | .matches = { |
Keith Packard | 98acd46 | 2009-06-14 12:31:58 -0700 | [diff] [blame] | 810 | DMI_MATCH(DMI_SYS_VENDOR, "Apple"), |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 811 | DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"), |
| 812 | }, |
| 813 | }, |
| 814 | { |
| 815 | .callback = intel_no_lvds_dmi_callback, |
| 816 | .ident = "MSI IM-945GSE-A", |
| 817 | .matches = { |
| 818 | DMI_MATCH(DMI_SYS_VENDOR, "MSI"), |
| 819 | DMI_MATCH(DMI_PRODUCT_NAME, "A9830IMS"), |
| 820 | }, |
| 821 | }, |
| 822 | { |
| 823 | .callback = intel_no_lvds_dmi_callback, |
| 824 | .ident = "Dell Studio Hybrid", |
| 825 | .matches = { |
| 826 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 827 | DMI_MATCH(DMI_PRODUCT_NAME, "Studio Hybrid 140g"), |
| 828 | }, |
| 829 | }, |
Jarod Wilson | 70aa96c | 2009-05-27 17:20:39 -0400 | [diff] [blame] | 830 | { |
| 831 | .callback = intel_no_lvds_dmi_callback, |
| 832 | .ident = "AOpen Mini PC", |
| 833 | .matches = { |
| 834 | DMI_MATCH(DMI_SYS_VENDOR, "AOpen"), |
| 835 | DMI_MATCH(DMI_PRODUCT_NAME, "i965GMx-IF"), |
| 836 | }, |
| 837 | }, |
Michael Cousin | fa0864b | 2009-06-05 21:16:22 +0200 | [diff] [blame] | 838 | { |
| 839 | .callback = intel_no_lvds_dmi_callback, |
Tormod Volden | ed8c754 | 2009-07-13 22:26:48 +0200 | [diff] [blame] | 840 | .ident = "AOpen Mini PC MP915", |
| 841 | .matches = { |
| 842 | DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), |
| 843 | DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"), |
| 844 | }, |
| 845 | }, |
| 846 | { |
| 847 | .callback = intel_no_lvds_dmi_callback, |
Michael Cousin | fa0864b | 2009-06-05 21:16:22 +0200 | [diff] [blame] | 848 | .ident = "Aopen i945GTt-VFA", |
| 849 | .matches = { |
| 850 | DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"), |
| 851 | }, |
| 852 | }, |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 853 | |
| 854 | { } /* terminating entry */ |
| 855 | }; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 856 | |
| 857 | /** |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 858 | * intel_find_lvds_downclock - find the reduced downclock for LVDS in EDID |
| 859 | * @dev: drm device |
| 860 | * @connector: LVDS connector |
| 861 | * |
| 862 | * Find the reduced downclock for LVDS in EDID. |
| 863 | */ |
| 864 | static void intel_find_lvds_downclock(struct drm_device *dev, |
| 865 | struct drm_connector *connector) |
| 866 | { |
| 867 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 868 | struct drm_display_mode *scan, *panel_fixed_mode; |
| 869 | int temp_downclock; |
| 870 | |
| 871 | panel_fixed_mode = dev_priv->panel_fixed_mode; |
| 872 | temp_downclock = panel_fixed_mode->clock; |
| 873 | |
| 874 | mutex_lock(&dev->mode_config.mutex); |
| 875 | list_for_each_entry(scan, &connector->probed_modes, head) { |
| 876 | /* |
| 877 | * If one mode has the same resolution with the fixed_panel |
| 878 | * mode while they have the different refresh rate, it means |
| 879 | * that the reduced downclock is found for the LVDS. In such |
| 880 | * case we can set the different FPx0/1 to dynamically select |
| 881 | * between low and high frequency. |
| 882 | */ |
| 883 | if (scan->hdisplay == panel_fixed_mode->hdisplay && |
| 884 | scan->hsync_start == panel_fixed_mode->hsync_start && |
| 885 | scan->hsync_end == panel_fixed_mode->hsync_end && |
| 886 | scan->htotal == panel_fixed_mode->htotal && |
| 887 | scan->vdisplay == panel_fixed_mode->vdisplay && |
| 888 | scan->vsync_start == panel_fixed_mode->vsync_start && |
| 889 | scan->vsync_end == panel_fixed_mode->vsync_end && |
| 890 | scan->vtotal == panel_fixed_mode->vtotal) { |
| 891 | if (scan->clock < temp_downclock) { |
| 892 | /* |
| 893 | * The downclock is already found. But we |
| 894 | * expect to find the lower downclock. |
| 895 | */ |
| 896 | temp_downclock = scan->clock; |
| 897 | } |
| 898 | } |
| 899 | } |
| 900 | mutex_unlock(&dev->mode_config.mutex); |
| 901 | if (temp_downclock < panel_fixed_mode->clock) { |
| 902 | /* We found the downclock for LVDS. */ |
| 903 | dev_priv->lvds_downclock_avail = 1; |
| 904 | dev_priv->lvds_downclock = temp_downclock; |
| 905 | DRM_DEBUG_KMS("LVDS downclock is found in EDID. " |
| 906 | "Normal clock %dKhz, downclock %dKhz\n", |
| 907 | panel_fixed_mode->clock, temp_downclock); |
| 908 | } |
| 909 | return; |
| 910 | } |
| 911 | |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 912 | /* |
| 913 | * Enumerate the child dev array parsed from VBT to check whether |
| 914 | * the LVDS is present. |
| 915 | * If it is present, return 1. |
| 916 | * If it is not present, return false. |
| 917 | * If no child dev is parsed from VBT, it assumes that the LVDS is present. |
| 918 | * Note: The addin_offset should also be checked for LVDS panel. |
| 919 | * Only when it is non-zero, it is assumed that it is present. |
| 920 | */ |
Zhao Yakui | 6e36595 | 2009-12-02 10:03:34 +0800 | [diff] [blame] | 921 | static int lvds_is_present_in_vbt(struct drm_device *dev) |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 922 | { |
| 923 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 924 | struct child_device_config *p_child; |
| 925 | int i, ret; |
| 926 | |
| 927 | if (!dev_priv->child_dev_num) |
| 928 | return 1; |
| 929 | |
| 930 | ret = 0; |
| 931 | for (i = 0; i < dev_priv->child_dev_num; i++) { |
| 932 | p_child = dev_priv->child_dev + i; |
| 933 | /* |
| 934 | * If the device type is not LFP, continue. |
| 935 | * If the device type is 0x22, it is also regarded as LFP. |
| 936 | */ |
| 937 | if (p_child->device_type != DEVICE_TYPE_INT_LFP && |
| 938 | p_child->device_type != DEVICE_TYPE_LFP) |
| 939 | continue; |
| 940 | |
| 941 | /* The addin_offset should be checked. Only when it is |
| 942 | * non-zero, it is regarded as present. |
| 943 | */ |
| 944 | if (p_child->addin_offset) { |
| 945 | ret = 1; |
| 946 | break; |
| 947 | } |
| 948 | } |
| 949 | return ret; |
| 950 | } |
| 951 | |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 952 | /** |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 953 | * intel_lvds_init - setup LVDS connectors on this device |
| 954 | * @dev: drm device |
| 955 | * |
| 956 | * Create the connector, register the LVDS DDC bus, and try to figure out what |
| 957 | * modes we can display on the LVDS panel (if present). |
| 958 | */ |
| 959 | void intel_lvds_init(struct drm_device *dev) |
| 960 | { |
| 961 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 962 | struct intel_output *intel_output; |
| 963 | struct drm_connector *connector; |
| 964 | struct drm_encoder *encoder; |
| 965 | struct drm_display_mode *scan; /* *modes, *bios_mode; */ |
| 966 | struct drm_crtc *crtc; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 967 | struct intel_lvds_priv *lvds_priv; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 968 | u32 lvds; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 969 | int pipe, gpio = GPIOC; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 970 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 971 | /* Skip init on machines we know falsely report LVDS */ |
| 972 | if (dmi_check_system(intel_no_lvds)) |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 973 | return; |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 974 | |
Matthew Garrett | 11ba159 | 2009-12-15 13:55:24 -0500 | [diff] [blame^] | 975 | if (!lvds_is_present_in_vbt(dev)) { |
| 976 | DRM_DEBUG_KMS("LVDS is not present in VBT\n"); |
Zhao Yakui | e99da35 | 2009-06-26 09:46:18 +0800 | [diff] [blame] | 977 | return; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 978 | } |
Zhao Yakui | e99da35 | 2009-06-26 09:46:18 +0800 | [diff] [blame] | 979 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 980 | if (IS_IRONLAKE(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 981 | if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) |
| 982 | return; |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 983 | if (dev_priv->edp_support) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 984 | DRM_DEBUG_KMS("disable LVDS for eDP support\n"); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 985 | return; |
| 986 | } |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 987 | gpio = PCH_GPIOC; |
| 988 | } |
| 989 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 990 | intel_output = kzalloc(sizeof(struct intel_output) + |
| 991 | sizeof(struct intel_lvds_priv), GFP_KERNEL); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 992 | if (!intel_output) { |
| 993 | return; |
| 994 | } |
| 995 | |
| 996 | connector = &intel_output->base; |
| 997 | encoder = &intel_output->enc; |
| 998 | drm_connector_init(dev, &intel_output->base, &intel_lvds_connector_funcs, |
| 999 | DRM_MODE_CONNECTOR_LVDS); |
| 1000 | |
| 1001 | drm_encoder_init(dev, &intel_output->enc, &intel_lvds_enc_funcs, |
| 1002 | DRM_MODE_ENCODER_LVDS); |
| 1003 | |
| 1004 | drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc); |
| 1005 | intel_output->type = INTEL_OUTPUT_LVDS; |
| 1006 | |
Ma Ling | f8aed70 | 2009-08-24 13:50:24 +0800 | [diff] [blame] | 1007 | intel_output->clone_mask = (1 << INTEL_LVDS_CLONE_BIT); |
| 1008 | intel_output->crtc_mask = (1 << 1); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1009 | drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs); |
| 1010 | drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs); |
| 1011 | connector->display_info.subpixel_order = SubPixelHorizontalRGB; |
| 1012 | connector->interlace_allowed = false; |
| 1013 | connector->doublescan_allowed = false; |
| 1014 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 1015 | lvds_priv = (struct intel_lvds_priv *)(intel_output + 1); |
| 1016 | intel_output->dev_priv = lvds_priv; |
| 1017 | /* create the scaling mode property */ |
| 1018 | drm_mode_create_scaling_mode_property(dev); |
| 1019 | /* |
| 1020 | * the initial panel fitting mode will be FULL_SCREEN. |
| 1021 | */ |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1022 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 1023 | drm_connector_attach_property(&intel_output->base, |
| 1024 | dev->mode_config.scaling_mode_property, |
| 1025 | DRM_MODE_SCALE_FULLSCREEN); |
| 1026 | lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1027 | /* |
| 1028 | * LVDS discovery: |
| 1029 | * 1) check for EDID on DDC |
| 1030 | * 2) check for VBT data |
| 1031 | * 3) check to see if LVDS is already on |
| 1032 | * if none of the above, no panel |
| 1033 | * 4) make sure lid is open |
| 1034 | * if closed, act like it's not there for now |
| 1035 | */ |
| 1036 | |
| 1037 | /* Set up the DDC bus. */ |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1038 | intel_output->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1039 | if (!intel_output->ddc_bus) { |
| 1040 | dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration " |
| 1041 | "failed.\n"); |
| 1042 | goto failed; |
| 1043 | } |
| 1044 | |
| 1045 | /* |
| 1046 | * Attempt to get the fixed panel mode from DDC. Assume that the |
| 1047 | * preferred mode is the right one. |
| 1048 | */ |
| 1049 | intel_ddc_get_modes(intel_output); |
| 1050 | |
| 1051 | list_for_each_entry(scan, &connector->probed_modes, head) { |
| 1052 | mutex_lock(&dev->mode_config.mutex); |
| 1053 | if (scan->type & DRM_MODE_TYPE_PREFERRED) { |
| 1054 | dev_priv->panel_fixed_mode = |
| 1055 | drm_mode_duplicate(dev, scan); |
| 1056 | mutex_unlock(&dev->mode_config.mutex); |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 1057 | intel_find_lvds_downclock(dev, connector); |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 1058 | goto out; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1059 | } |
| 1060 | mutex_unlock(&dev->mode_config.mutex); |
| 1061 | } |
| 1062 | |
| 1063 | /* Failed to get EDID, what about VBT? */ |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 1064 | if (dev_priv->lfp_lvds_vbt_mode) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1065 | mutex_lock(&dev->mode_config.mutex); |
| 1066 | dev_priv->panel_fixed_mode = |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 1067 | drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1068 | mutex_unlock(&dev->mode_config.mutex); |
Jesse Barnes | e285f3cd | 2009-01-14 10:53:36 -0800 | [diff] [blame] | 1069 | if (dev_priv->panel_fixed_mode) { |
| 1070 | dev_priv->panel_fixed_mode->type |= |
| 1071 | DRM_MODE_TYPE_PREFERRED; |
Jesse Barnes | e285f3cd | 2009-01-14 10:53:36 -0800 | [diff] [blame] | 1072 | goto out; |
| 1073 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1074 | } |
| 1075 | |
| 1076 | /* |
| 1077 | * If we didn't get EDID, try checking if the panel is already turned |
| 1078 | * on. If so, assume that whatever is currently programmed is the |
| 1079 | * correct mode. |
| 1080 | */ |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1081 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 1082 | /* Ironlake: FIXME if still fail, not try pipe mode now */ |
| 1083 | if (IS_IRONLAKE(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1084 | goto failed; |
| 1085 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1086 | lvds = I915_READ(LVDS); |
| 1087 | pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0; |
| 1088 | crtc = intel_get_crtc_from_pipe(dev, pipe); |
| 1089 | |
| 1090 | if (crtc && (lvds & LVDS_PORT_EN)) { |
| 1091 | dev_priv->panel_fixed_mode = intel_crtc_mode_get(dev, crtc); |
| 1092 | if (dev_priv->panel_fixed_mode) { |
| 1093 | dev_priv->panel_fixed_mode->type |= |
| 1094 | DRM_MODE_TYPE_PREFERRED; |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 1095 | goto out; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1096 | } |
| 1097 | } |
| 1098 | |
| 1099 | /* If we still don't have a mode after all that, give up. */ |
| 1100 | if (!dev_priv->panel_fixed_mode) |
| 1101 | goto failed; |
| 1102 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1103 | out: |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 1104 | if (IS_IRONLAKE(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1105 | u32 pwm; |
| 1106 | /* make sure PWM is enabled */ |
| 1107 | pwm = I915_READ(BLC_PWM_CPU_CTL2); |
| 1108 | pwm |= (PWM_ENABLE | PWM_PIPE_B); |
| 1109 | I915_WRITE(BLC_PWM_CPU_CTL2, pwm); |
| 1110 | |
| 1111 | pwm = I915_READ(BLC_PWM_PCH_CTL1); |
| 1112 | pwm |= PWM_PCH_ENABLE; |
| 1113 | I915_WRITE(BLC_PWM_PCH_CTL1, pwm); |
| 1114 | } |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 1115 | dev_priv->lid_notifier.notifier_call = intel_lid_notify; |
| 1116 | if (acpi_lid_notifier_register(&dev_priv->lid_notifier)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1117 | DRM_DEBUG_KMS("lid notifier registration failed\n"); |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 1118 | dev_priv->lid_notifier.notifier_call = NULL; |
| 1119 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1120 | drm_sysfs_connector_add(connector); |
| 1121 | return; |
| 1122 | |
| 1123 | failed: |
Zhao Yakui | 8a4c47f | 2009-07-20 13:48:04 +0800 | [diff] [blame] | 1124 | DRM_DEBUG_KMS("No LVDS modes found, disabling.\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1125 | if (intel_output->ddc_bus) |
| 1126 | intel_i2c_destroy(intel_output->ddc_bus); |
| 1127 | drm_connector_cleanup(connector); |
Shaohua Li | 1991bdf | 2009-11-17 17:19:23 +0800 | [diff] [blame] | 1128 | drm_encoder_cleanup(encoder); |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 1129 | kfree(intel_output); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1130 | } |