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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 33 | #include <linux/slab.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 34 | #include <drm/drmP.h> |
| 35 | #include <drm/drm_crtc.h> |
| 36 | #include <drm/drm_edid.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 37 | #include "intel_drv.h" |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 38 | #include <drm/i915_drm.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 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 */ |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 43 | struct intel_lvds_connector { |
| 44 | struct intel_connector base; |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 45 | |
| 46 | struct notifier_block lid_notifier; |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 47 | }; |
| 48 | |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 49 | struct intel_lvds_encoder { |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 50 | struct intel_encoder base; |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 51 | |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 52 | bool is_dual_link; |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 53 | u32 reg; |
Paulo Zanoni | 1f835a7 | 2014-07-04 13:38:36 -0300 | [diff] [blame] | 54 | u32 a3_power; |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 55 | |
Jani Nikula | 62165e0 | 2012-10-19 14:51:47 +0300 | [diff] [blame] | 56 | struct intel_lvds_connector *attached_connector; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 57 | }; |
| 58 | |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 59 | static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder) |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 60 | { |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 61 | return container_of(encoder, struct intel_lvds_encoder, base.base); |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 62 | } |
| 63 | |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 64 | static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector) |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 65 | { |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 66 | return container_of(connector, struct intel_lvds_connector, base.base); |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 67 | } |
| 68 | |
Daniel Vetter | b1dc332 | 2012-07-02 21:09:00 +0200 | [diff] [blame] | 69 | static bool intel_lvds_get_hw_state(struct intel_encoder *encoder, |
| 70 | enum pipe *pipe) |
| 71 | { |
| 72 | struct drm_device *dev = encoder->base.dev; |
| 73 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 74 | struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); |
Paulo Zanoni | 34a6c70 | 2014-07-04 13:38:35 -0300 | [diff] [blame] | 75 | enum intel_display_power_domain power_domain; |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 76 | u32 tmp; |
Daniel Vetter | b1dc332 | 2012-07-02 21:09:00 +0200 | [diff] [blame] | 77 | |
Paulo Zanoni | 34a6c70 | 2014-07-04 13:38:35 -0300 | [diff] [blame] | 78 | power_domain = intel_display_port_power_domain(encoder); |
| 79 | if (!intel_display_power_enabled(dev_priv, power_domain)) |
| 80 | return false; |
| 81 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 82 | tmp = I915_READ(lvds_encoder->reg); |
Daniel Vetter | b1dc332 | 2012-07-02 21:09:00 +0200 | [diff] [blame] | 83 | |
| 84 | if (!(tmp & LVDS_PORT_EN)) |
| 85 | return false; |
| 86 | |
| 87 | if (HAS_PCH_CPT(dev)) |
| 88 | *pipe = PORT_TO_PIPE_CPT(tmp); |
| 89 | else |
| 90 | *pipe = PORT_TO_PIPE(tmp); |
| 91 | |
| 92 | return true; |
| 93 | } |
| 94 | |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 95 | static void intel_lvds_get_config(struct intel_encoder *encoder, |
| 96 | struct intel_crtc_config *pipe_config) |
| 97 | { |
| 98 | struct drm_device *dev = encoder->base.dev; |
| 99 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 100 | u32 lvds_reg, tmp, flags = 0; |
Ville Syrjälä | 18442d0 | 2013-09-13 16:00:08 +0300 | [diff] [blame] | 101 | int dotclock; |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 102 | |
| 103 | if (HAS_PCH_SPLIT(dev)) |
| 104 | lvds_reg = PCH_LVDS; |
| 105 | else |
| 106 | lvds_reg = LVDS; |
| 107 | |
| 108 | tmp = I915_READ(lvds_reg); |
| 109 | if (tmp & LVDS_HSYNC_POLARITY) |
| 110 | flags |= DRM_MODE_FLAG_NHSYNC; |
| 111 | else |
| 112 | flags |= DRM_MODE_FLAG_PHSYNC; |
| 113 | if (tmp & LVDS_VSYNC_POLARITY) |
| 114 | flags |= DRM_MODE_FLAG_NVSYNC; |
| 115 | else |
| 116 | flags |= DRM_MODE_FLAG_PVSYNC; |
| 117 | |
| 118 | pipe_config->adjusted_mode.flags |= flags; |
Daniel Vetter | 0692282 | 2013-07-11 13:35:40 +0200 | [diff] [blame] | 119 | |
Daniel Vetter | 6b89cdd | 2014-07-09 22:35:53 +0200 | [diff] [blame] | 120 | /* gen2/3 store dither state in pfit control, needs to match */ |
| 121 | if (INTEL_INFO(dev)->gen < 4) { |
| 122 | tmp = I915_READ(PFIT_CONTROL); |
| 123 | |
| 124 | pipe_config->gmch_pfit.control |= tmp & PANEL_8TO6_DITHER_ENABLE; |
| 125 | } |
| 126 | |
Ville Syrjälä | 18442d0 | 2013-09-13 16:00:08 +0300 | [diff] [blame] | 127 | dotclock = pipe_config->port_clock; |
| 128 | |
| 129 | if (HAS_PCH_SPLIT(dev_priv->dev)) |
| 130 | ironlake_check_encoder_dotclock(pipe_config, dotclock); |
| 131 | |
Damien Lespiau | 241bfc3 | 2013-09-25 16:45:37 +0100 | [diff] [blame] | 132 | pipe_config->adjusted_mode.crtc_clock = dotclock; |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 133 | } |
| 134 | |
Daniel Vetter | f6736a1 | 2013-06-05 13:34:30 +0200 | [diff] [blame] | 135 | static void intel_pre_enable_lvds(struct intel_encoder *encoder) |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 136 | { |
| 137 | struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); |
| 138 | struct drm_device *dev = encoder->base.dev; |
| 139 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 55607e8 | 2013-06-16 21:42:39 +0200 | [diff] [blame] | 140 | struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); |
Ville Syrjälä | 4c6df4b | 2013-09-02 21:13:39 +0300 | [diff] [blame] | 141 | const struct drm_display_mode *adjusted_mode = |
| 142 | &crtc->config.adjusted_mode; |
Daniel Vetter | 55607e8 | 2013-06-16 21:42:39 +0200 | [diff] [blame] | 143 | int pipe = crtc->pipe; |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 144 | u32 temp; |
| 145 | |
Daniel Vetter | 55607e8 | 2013-06-16 21:42:39 +0200 | [diff] [blame] | 146 | if (HAS_PCH_SPLIT(dev)) { |
| 147 | assert_fdi_rx_pll_disabled(dev_priv, pipe); |
| 148 | assert_shared_dpll_disabled(dev_priv, |
| 149 | intel_crtc_to_shared_dpll(crtc)); |
| 150 | } else { |
| 151 | assert_pll_disabled(dev_priv, pipe); |
| 152 | } |
| 153 | |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 154 | temp = I915_READ(lvds_encoder->reg); |
| 155 | temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; |
Daniel Vetter | 62810e5 | 2012-11-26 17:22:13 +0100 | [diff] [blame] | 156 | |
| 157 | if (HAS_PCH_CPT(dev)) { |
| 158 | temp &= ~PORT_TRANS_SEL_MASK; |
| 159 | temp |= PORT_TRANS_SEL_CPT(pipe); |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 160 | } else { |
Daniel Vetter | 62810e5 | 2012-11-26 17:22:13 +0100 | [diff] [blame] | 161 | if (pipe == 1) { |
| 162 | temp |= LVDS_PIPEB_SELECT; |
| 163 | } else { |
| 164 | temp &= ~LVDS_PIPEB_SELECT; |
| 165 | } |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 166 | } |
Daniel Vetter | 62810e5 | 2012-11-26 17:22:13 +0100 | [diff] [blame] | 167 | |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 168 | /* set the corresponsding LVDS_BORDER bit */ |
Daniel Vetter | 2fa2fe9 | 2013-05-07 23:34:16 +0200 | [diff] [blame] | 169 | temp &= ~LVDS_BORDER_ENABLE; |
Daniel Vetter | 55607e8 | 2013-06-16 21:42:39 +0200 | [diff] [blame] | 170 | temp |= crtc->config.gmch_pfit.lvds_border_bits; |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 171 | /* Set the B0-B3 data pairs corresponding to whether we're going to |
| 172 | * set the DPLLs for dual-channel mode or not. |
| 173 | */ |
| 174 | if (lvds_encoder->is_dual_link) |
| 175 | temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; |
| 176 | else |
| 177 | temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); |
| 178 | |
| 179 | /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) |
| 180 | * appropriately here, but we need to look more thoroughly into how |
Paulo Zanoni | 1f835a7 | 2014-07-04 13:38:36 -0300 | [diff] [blame] | 181 | * panels behave in the two modes. For now, let's just maintain the |
| 182 | * value we got from the BIOS. |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 183 | */ |
Paulo Zanoni | 1f835a7 | 2014-07-04 13:38:36 -0300 | [diff] [blame] | 184 | temp &= ~LVDS_A3_POWER_MASK; |
| 185 | temp |= lvds_encoder->a3_power; |
Daniel Vetter | 62810e5 | 2012-11-26 17:22:13 +0100 | [diff] [blame] | 186 | |
| 187 | /* Set the dithering flag on LVDS as needed, note that there is no |
| 188 | * special lvds dither control bit on pch-split platforms, dithering is |
| 189 | * only controlled through the PIPECONF reg. */ |
| 190 | if (INTEL_INFO(dev)->gen == 4) { |
Daniel Vetter | d8b3224 | 2013-04-25 17:54:44 +0200 | [diff] [blame] | 191 | /* Bspec wording suggests that LVDS port dithering only exists |
| 192 | * for 18bpp panels. */ |
Daniel Vetter | 55607e8 | 2013-06-16 21:42:39 +0200 | [diff] [blame] | 193 | if (crtc->config.dither && crtc->config.pipe_bpp == 18) |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 194 | temp |= LVDS_ENABLE_DITHER; |
| 195 | else |
| 196 | temp &= ~LVDS_ENABLE_DITHER; |
| 197 | } |
| 198 | temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); |
Ville Syrjälä | 4c6df4b | 2013-09-02 21:13:39 +0300 | [diff] [blame] | 199 | if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 200 | temp |= LVDS_HSYNC_POLARITY; |
Ville Syrjälä | 4c6df4b | 2013-09-02 21:13:39 +0300 | [diff] [blame] | 201 | if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
Daniel Vetter | fc68309 | 2012-11-26 17:22:12 +0100 | [diff] [blame] | 202 | temp |= LVDS_VSYNC_POLARITY; |
| 203 | |
| 204 | I915_WRITE(lvds_encoder->reg, temp); |
| 205 | } |
| 206 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 207 | /** |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 208 | * Sets the power state for the panel. |
| 209 | */ |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 210 | static void intel_enable_lvds(struct intel_encoder *encoder) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 211 | { |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 212 | struct drm_device *dev = encoder->base.dev; |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 213 | struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 214 | struct intel_connector *intel_connector = |
| 215 | &lvds_encoder->attached_connector->base; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 216 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 217 | u32 ctl_reg, stat_reg; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 218 | |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 219 | if (HAS_PCH_SPLIT(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 220 | ctl_reg = PCH_PP_CONTROL; |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 221 | stat_reg = PCH_PP_STATUS; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 222 | } else { |
| 223 | ctl_reg = PP_CONTROL; |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 224 | stat_reg = PP_STATUS; |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 225 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 226 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 227 | I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) | LVDS_PORT_EN); |
Chris Wilson | e9e331a | 2010-09-13 01:16:10 +0100 | [diff] [blame] | 228 | |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 229 | I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON); |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 230 | POSTING_READ(lvds_encoder->reg); |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 231 | if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000)) |
| 232 | DRM_ERROR("timed out waiting for panel to power on\n"); |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 233 | |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 234 | intel_panel_enable_backlight(intel_connector); |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 235 | } |
| 236 | |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 237 | static void intel_disable_lvds(struct intel_encoder *encoder) |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 238 | { |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 239 | struct drm_device *dev = encoder->base.dev; |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 240 | struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 241 | struct intel_connector *intel_connector = |
| 242 | &lvds_encoder->attached_connector->base; |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 243 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 244 | u32 ctl_reg, stat_reg; |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 245 | |
| 246 | if (HAS_PCH_SPLIT(dev)) { |
| 247 | ctl_reg = PCH_PP_CONTROL; |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 248 | stat_reg = PCH_PP_STATUS; |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 249 | } else { |
| 250 | ctl_reg = PP_CONTROL; |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 251 | stat_reg = PP_STATUS; |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 252 | } |
| 253 | |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 254 | intel_panel_disable_backlight(intel_connector); |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 255 | |
| 256 | I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON); |
Keith Packard | de842ef | 2011-08-06 10:30:45 -0700 | [diff] [blame] | 257 | if (wait_for((I915_READ(stat_reg) & PP_ON) == 0, 1000)) |
| 258 | DRM_ERROR("timed out waiting for panel to power off\n"); |
Chris Wilson | 2a1292f | 2010-12-05 19:21:18 +0000 | [diff] [blame] | 259 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 260 | I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) & ~LVDS_PORT_EN); |
| 261 | POSTING_READ(lvds_encoder->reg); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 262 | } |
| 263 | |
Damien Lespiau | c19de8e | 2013-11-28 15:29:18 +0000 | [diff] [blame] | 264 | static enum drm_mode_status |
| 265 | intel_lvds_mode_valid(struct drm_connector *connector, |
| 266 | struct drm_display_mode *mode) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 267 | { |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 268 | struct intel_connector *intel_connector = to_intel_connector(connector); |
| 269 | struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 270 | |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 271 | if (mode->hdisplay > fixed_mode->hdisplay) |
| 272 | return MODE_PANEL; |
| 273 | if (mode->vdisplay > fixed_mode->vdisplay) |
| 274 | return MODE_PANEL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 275 | |
| 276 | return MODE_OK; |
| 277 | } |
| 278 | |
Daniel Vetter | 7ae8923 | 2013-03-27 00:44:52 +0100 | [diff] [blame] | 279 | static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder, |
| 280 | struct intel_crtc_config *pipe_config) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 281 | { |
Daniel Vetter | 7ae8923 | 2013-03-27 00:44:52 +0100 | [diff] [blame] | 282 | struct drm_device *dev = intel_encoder->base.dev; |
Daniel Vetter | 7ae8923 | 2013-03-27 00:44:52 +0100 | [diff] [blame] | 283 | struct intel_lvds_encoder *lvds_encoder = |
| 284 | to_lvds_encoder(&intel_encoder->base); |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 285 | struct intel_connector *intel_connector = |
| 286 | &lvds_encoder->attached_connector->base; |
Daniel Vetter | 7ae8923 | 2013-03-27 00:44:52 +0100 | [diff] [blame] | 287 | struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 288 | struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc; |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 289 | unsigned int lvds_bpp; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 290 | |
| 291 | /* Should never happen!! */ |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 292 | if (INTEL_INFO(dev)->gen < 4 && intel_crtc->pipe == 0) { |
Keith Packard | 1ae8c0a | 2009-06-28 15:42:17 -0700 | [diff] [blame] | 293 | DRM_ERROR("Can't support LVDS on pipe A\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 294 | return false; |
| 295 | } |
| 296 | |
Paulo Zanoni | 1f835a7 | 2014-07-04 13:38:36 -0300 | [diff] [blame] | 297 | if (lvds_encoder->a3_power == LVDS_A3_POWER_UP) |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 298 | lvds_bpp = 8*3; |
| 299 | else |
| 300 | lvds_bpp = 6*3; |
| 301 | |
Daniel Vetter | e29c22c | 2013-02-21 00:00:16 +0100 | [diff] [blame] | 302 | if (lvds_bpp != pipe_config->pipe_bpp && !pipe_config->bw_constrained) { |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 303 | DRM_DEBUG_KMS("forcing display bpp (was %d) to LVDS (%d)\n", |
| 304 | pipe_config->pipe_bpp, lvds_bpp); |
| 305 | pipe_config->pipe_bpp = lvds_bpp; |
| 306 | } |
Daniel Vetter | d8b3224 | 2013-04-25 17:54:44 +0200 | [diff] [blame] | 307 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 308 | /* |
Chris Wilson | 7167704 | 2010-07-17 13:38:43 +0100 | [diff] [blame] | 309 | * We have timings from the BIOS for the panel, put them in |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 310 | * to the adjusted mode. The CRTC will be set up for this mode, |
| 311 | * with the panel scaling set up to source from the H/VDisplay |
| 312 | * of the original mode. |
| 313 | */ |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 314 | intel_fixed_panel_mode(intel_connector->panel.fixed_mode, |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 315 | adjusted_mode); |
Chris Wilson | 1d8e1c7 | 2010-08-07 11:01:28 +0100 | [diff] [blame] | 316 | |
| 317 | if (HAS_PCH_SPLIT(dev)) { |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 318 | pipe_config->has_pch_encoder = true; |
| 319 | |
Jesse Barnes | b074cec | 2013-04-25 12:55:02 -0700 | [diff] [blame] | 320 | intel_pch_panel_fitting(intel_crtc, pipe_config, |
| 321 | intel_connector->panel.fitting_mode); |
Jesse Barnes | 2dd2455 | 2013-04-25 12:55:01 -0700 | [diff] [blame] | 322 | } else { |
| 323 | intel_gmch_panel_fitting(intel_crtc, pipe_config, |
| 324 | intel_connector->panel.fitting_mode); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 325 | |
Daniel Vetter | 21d8a47 | 2013-07-12 08:07:30 +0200 | [diff] [blame] | 326 | } |
Daniel Vetter | f9bef08 | 2012-04-15 19:53:19 +0200 | [diff] [blame] | 327 | |
Zhao Yakui | a3e17eb | 2009-10-10 10:42:37 +0800 | [diff] [blame] | 328 | /* |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 329 | * XXX: It would be nice to support lower refresh rates on the |
| 330 | * panels to reduce power consumption, and perhaps match the |
| 331 | * user's requested refresh rate. |
| 332 | */ |
| 333 | |
| 334 | return true; |
| 335 | } |
| 336 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 337 | /** |
| 338 | * Detect the LVDS connection. |
| 339 | * |
Jesse Barnes | b42d4c5 | 2009-09-10 15:28:04 -0700 | [diff] [blame] | 340 | * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means |
| 341 | * connected and closed means disconnected. We also send hotplug events as |
| 342 | * needed, using lid status notification from the input layer. |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 343 | */ |
Chris Wilson | 7b334fc | 2010-09-09 23:51:02 +0100 | [diff] [blame] | 344 | static enum drm_connector_status |
Chris Wilson | 930a9e2 | 2010-09-14 11:07:23 +0100 | [diff] [blame] | 345 | intel_lvds_detect(struct drm_connector *connector, bool force) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 346 | { |
Jesse Barnes | 7b9c5ab | 2010-02-12 09:30:00 -0800 | [diff] [blame] | 347 | struct drm_device *dev = connector->dev; |
Chris Wilson | 6ee3b5a | 2011-03-24 13:26:43 +0000 | [diff] [blame] | 348 | enum drm_connector_status status; |
Jesse Barnes | b42d4c5 | 2009-09-10 15:28:04 -0700 | [diff] [blame] | 349 | |
Chris Wilson | 164c859 | 2013-07-20 20:27:08 +0100 | [diff] [blame] | 350 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
Jani Nikula | c23cc41 | 2014-06-03 14:56:17 +0300 | [diff] [blame] | 351 | connector->base.id, connector->name); |
Chris Wilson | 164c859 | 2013-07-20 20:27:08 +0100 | [diff] [blame] | 352 | |
Chris Wilson | fe16d94 | 2011-02-12 10:29:38 +0000 | [diff] [blame] | 353 | status = intel_panel_detect(dev); |
| 354 | if (status != connector_status_unknown) |
| 355 | return status; |
Chris Wilson | 01fe9db | 2011-01-16 19:37:30 +0000 | [diff] [blame] | 356 | |
Chris Wilson | 6ee3b5a | 2011-03-24 13:26:43 +0000 | [diff] [blame] | 357 | return connector_status_connected; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | /** |
| 361 | * Return the list of DDC modes if available, or the BIOS fixed mode otherwise. |
| 362 | */ |
| 363 | static int intel_lvds_get_modes(struct drm_connector *connector) |
| 364 | { |
Jani Nikula | 62165e0 | 2012-10-19 14:51:47 +0300 | [diff] [blame] | 365 | struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 366 | struct drm_device *dev = connector->dev; |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 367 | struct drm_display_mode *mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 368 | |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 369 | /* use cached edid if we have one */ |
Chris Wilson | 2aa4f09 | 2012-11-21 16:14:04 +0000 | [diff] [blame] | 370 | if (!IS_ERR_OR_NULL(lvds_connector->base.edid)) |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 371 | return drm_add_edid_modes(connector, lvds_connector->base.edid); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 372 | |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 373 | mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode); |
Chris Wilson | 311bd68 | 2011-01-13 19:06:50 +0000 | [diff] [blame] | 374 | if (mode == NULL) |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 375 | return 0; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 376 | |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 377 | drm_mode_probed_add(connector, mode); |
| 378 | return 1; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 379 | } |
| 380 | |
Thomas Bächler | 0544edf | 2010-07-02 10:44:23 +0200 | [diff] [blame] | 381 | static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id) |
| 382 | { |
Daniel Vetter | bc0daf4 | 2012-04-01 13:16:49 +0200 | [diff] [blame] | 383 | DRM_INFO("Skipping forced modeset for %s\n", id->ident); |
Thomas Bächler | 0544edf | 2010-07-02 10:44:23 +0200 | [diff] [blame] | 384 | return 1; |
| 385 | } |
| 386 | |
| 387 | /* The GPU hangs up on these systems if modeset is performed on LID open */ |
| 388 | static const struct dmi_system_id intel_no_modeset_on_lid[] = { |
| 389 | { |
| 390 | .callback = intel_no_modeset_on_lid_dmi_callback, |
| 391 | .ident = "Toshiba Tecra A11", |
| 392 | .matches = { |
| 393 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
| 394 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"), |
| 395 | }, |
| 396 | }, |
| 397 | |
| 398 | { } /* terminating entry */ |
| 399 | }; |
| 400 | |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 401 | /* |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 402 | * Lid events. Note the use of 'modeset': |
| 403 | * - we set it to MODESET_ON_LID_OPEN on lid close, |
| 404 | * and set it to MODESET_DONE on open |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 405 | * - we use it as a "only once" bit (ie we ignore |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 406 | * duplicate events where it was already properly set) |
| 407 | * - the suspend/resume paths will set it to |
| 408 | * MODESET_SUSPENDED and ignore the lid open event, |
| 409 | * because they restore the mode ("lid open"). |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 410 | */ |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 411 | static int intel_lid_notify(struct notifier_block *nb, unsigned long val, |
| 412 | void *unused) |
| 413 | { |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 414 | struct intel_lvds_connector *lvds_connector = |
| 415 | container_of(nb, struct intel_lvds_connector, lid_notifier); |
| 416 | struct drm_connector *connector = &lvds_connector->base.base; |
| 417 | struct drm_device *dev = connector->dev; |
| 418 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 419 | |
Alex Williamson | 2fb4e61 | 2011-04-21 16:08:14 -0600 | [diff] [blame] | 420 | if (dev->switch_power_state != DRM_SWITCH_POWER_ON) |
| 421 | return NOTIFY_OK; |
| 422 | |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 423 | mutex_lock(&dev_priv->modeset_restore_lock); |
| 424 | if (dev_priv->modeset_restore == MODESET_SUSPENDED) |
| 425 | goto exit; |
Zhao Yakui | a256537 | 2009-12-11 09:26:11 +0800 | [diff] [blame] | 426 | /* |
| 427 | * check and update the status of LVDS connector after receiving |
| 428 | * the LID nofication event. |
| 429 | */ |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 430 | connector->status = connector->funcs->detect(connector, false); |
Chris Wilson | 7b334fc | 2010-09-09 23:51:02 +0100 | [diff] [blame] | 431 | |
Thomas Bächler | 0544edf | 2010-07-02 10:44:23 +0200 | [diff] [blame] | 432 | /* Don't force modeset on machines where it causes a GPU lockup */ |
| 433 | if (dmi_check_system(intel_no_modeset_on_lid)) |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 434 | goto exit; |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 435 | if (!acpi_lid_open()) { |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 436 | /* do modeset on next lid open event */ |
| 437 | dev_priv->modeset_restore = MODESET_ON_LID_OPEN; |
| 438 | goto exit; |
Jesse Barnes | 06891e2 | 2009-09-14 10:58:48 -0700 | [diff] [blame] | 439 | } |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 440 | |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 441 | if (dev_priv->modeset_restore == MODESET_DONE) |
| 442 | goto exit; |
Linus Torvalds | c9354c8 | 2009-11-02 09:29:55 -0800 | [diff] [blame] | 443 | |
Daniel Vetter | 5be19d9 | 2013-10-09 10:47:12 +0200 | [diff] [blame] | 444 | /* |
| 445 | * Some old platform's BIOS love to wreak havoc while the lid is closed. |
| 446 | * We try to detect this here and undo any damage. The split for PCH |
| 447 | * platforms is rather conservative and a bit arbitrary expect that on |
| 448 | * those platforms VGA disabling requires actual legacy VGA I/O access, |
| 449 | * and as part of the cleanup in the hw state restore we also redisable |
| 450 | * the vga plane. |
| 451 | */ |
| 452 | if (!HAS_PCH_SPLIT(dev)) { |
| 453 | drm_modeset_lock_all(dev); |
| 454 | intel_modeset_setup_hw_state(dev, true); |
| 455 | drm_modeset_unlock_all(dev); |
| 456 | } |
Jesse Barnes | 0632419 | 2009-09-10 15:28:05 -0700 | [diff] [blame] | 457 | |
Zhang Rui | b8efb17 | 2013-02-05 15:41:53 +0800 | [diff] [blame] | 458 | dev_priv->modeset_restore = MODESET_DONE; |
| 459 | |
| 460 | exit: |
| 461 | mutex_unlock(&dev_priv->modeset_restore_lock); |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 462 | return NOTIFY_OK; |
| 463 | } |
| 464 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 465 | /** |
| 466 | * intel_lvds_destroy - unregister and free LVDS structures |
| 467 | * @connector: connector to free |
| 468 | * |
| 469 | * Unregister the DDC bus for this connector then free the driver private |
| 470 | * structure. |
| 471 | */ |
| 472 | static void intel_lvds_destroy(struct drm_connector *connector) |
| 473 | { |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 474 | struct intel_lvds_connector *lvds_connector = |
| 475 | to_lvds_connector(connector); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 476 | |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 477 | if (lvds_connector->lid_notifier.notifier_call) |
| 478 | acpi_lid_notifier_unregister(&lvds_connector->lid_notifier); |
Matthew Garrett | aaa6fd2 | 2011-08-12 12:11:33 +0200 | [diff] [blame] | 479 | |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 480 | if (!IS_ERR_OR_NULL(lvds_connector->base.edid)) |
| 481 | kfree(lvds_connector->base.edid); |
| 482 | |
Jani Nikula | 1d50870 | 2012-10-19 14:51:49 +0300 | [diff] [blame] | 483 | intel_panel_fini(&lvds_connector->base.panel); |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 484 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 485 | drm_connector_cleanup(connector); |
| 486 | kfree(connector); |
| 487 | } |
| 488 | |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 489 | static int intel_lvds_set_property(struct drm_connector *connector, |
| 490 | struct drm_property *property, |
| 491 | uint64_t value) |
| 492 | { |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 493 | struct intel_connector *intel_connector = to_intel_connector(connector); |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 494 | struct drm_device *dev = connector->dev; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 495 | |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 496 | if (property == dev->mode_config.scaling_mode_property) { |
Jani Nikula | 62165e0 | 2012-10-19 14:51:47 +0300 | [diff] [blame] | 497 | struct drm_crtc *crtc; |
Zhenyu Wang | bb8a356 | 2010-03-29 16:40:50 +0800 | [diff] [blame] | 498 | |
Jesse Barnes | 53bd838 | 2009-07-01 10:04:40 -0700 | [diff] [blame] | 499 | if (value == DRM_MODE_SCALE_NONE) { |
| 500 | DRM_DEBUG_KMS("no scaling not supported\n"); |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 501 | return -EINVAL; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 502 | } |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 503 | |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 504 | if (intel_connector->panel.fitting_mode == value) { |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 505 | /* the LVDS scaling property is not changed */ |
| 506 | return 0; |
| 507 | } |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 508 | intel_connector->panel.fitting_mode = value; |
Jani Nikula | 62165e0 | 2012-10-19 14:51:47 +0300 | [diff] [blame] | 509 | |
| 510 | crtc = intel_attached_encoder(connector)->base.crtc; |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 511 | if (crtc && crtc->enabled) { |
| 512 | /* |
| 513 | * If the CRTC is enabled, the display will be changed |
| 514 | * according to the new panel fitting mode. |
| 515 | */ |
Chris Wilson | c0c36b94 | 2012-12-19 16:08:43 +0000 | [diff] [blame] | 516 | intel_crtc_restore_mode(crtc); |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 517 | } |
| 518 | } |
| 519 | |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 520 | return 0; |
| 521 | } |
| 522 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 523 | static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = { |
| 524 | .get_modes = intel_lvds_get_modes, |
| 525 | .mode_valid = intel_lvds_mode_valid, |
Chris Wilson | df0e924 | 2010-09-09 16:20:55 +0100 | [diff] [blame] | 526 | .best_encoder = intel_best_encoder, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 527 | }; |
| 528 | |
| 529 | static const struct drm_connector_funcs intel_lvds_connector_funcs = { |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 530 | .dpms = intel_connector_dpms, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 531 | .detect = intel_lvds_detect, |
| 532 | .fill_modes = drm_helper_probe_single_connector_modes, |
Jesse Barnes | 335041e | 2009-01-22 22:22:06 +1000 | [diff] [blame] | 533 | .set_property = intel_lvds_set_property, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 534 | .destroy = intel_lvds_destroy, |
| 535 | }; |
| 536 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 537 | static const struct drm_encoder_funcs intel_lvds_enc_funcs = { |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 538 | .destroy = intel_encoder_destroy, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 539 | }; |
| 540 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 541 | static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id) |
| 542 | { |
Daniel Vetter | bc0daf4 | 2012-04-01 13:16:49 +0200 | [diff] [blame] | 543 | DRM_INFO("Skipping LVDS initialization for %s\n", id->ident); |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 544 | return 1; |
| 545 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 546 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 547 | /* These systems claim to have LVDS, but really don't */ |
Jaswinder Singh Rajput | 93c05f2 | 2009-06-04 09:41:19 +1000 | [diff] [blame] | 548 | static const struct dmi_system_id intel_no_lvds[] = { |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 549 | { |
| 550 | .callback = intel_no_lvds_dmi_callback, |
| 551 | .ident = "Apple Mac Mini (Core series)", |
| 552 | .matches = { |
Keith Packard | 98acd46 | 2009-06-14 12:31:58 -0700 | [diff] [blame] | 553 | DMI_MATCH(DMI_SYS_VENDOR, "Apple"), |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 554 | DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), |
| 555 | }, |
| 556 | }, |
| 557 | { |
| 558 | .callback = intel_no_lvds_dmi_callback, |
| 559 | .ident = "Apple Mac Mini (Core 2 series)", |
| 560 | .matches = { |
Keith Packard | 98acd46 | 2009-06-14 12:31:58 -0700 | [diff] [blame] | 561 | DMI_MATCH(DMI_SYS_VENDOR, "Apple"), |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 562 | DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"), |
| 563 | }, |
| 564 | }, |
| 565 | { |
| 566 | .callback = intel_no_lvds_dmi_callback, |
| 567 | .ident = "MSI IM-945GSE-A", |
| 568 | .matches = { |
| 569 | DMI_MATCH(DMI_SYS_VENDOR, "MSI"), |
| 570 | DMI_MATCH(DMI_PRODUCT_NAME, "A9830IMS"), |
| 571 | }, |
| 572 | }, |
| 573 | { |
| 574 | .callback = intel_no_lvds_dmi_callback, |
| 575 | .ident = "Dell Studio Hybrid", |
| 576 | .matches = { |
| 577 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 578 | DMI_MATCH(DMI_PRODUCT_NAME, "Studio Hybrid 140g"), |
| 579 | }, |
| 580 | }, |
Jarod Wilson | 70aa96c | 2009-05-27 17:20:39 -0400 | [diff] [blame] | 581 | { |
| 582 | .callback = intel_no_lvds_dmi_callback, |
Pieterjan Camerlynck | b066254 | 2011-07-26 16:23:54 +0200 | [diff] [blame] | 583 | .ident = "Dell OptiPlex FX170", |
| 584 | .matches = { |
| 585 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 586 | DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex FX170"), |
| 587 | }, |
| 588 | }, |
| 589 | { |
| 590 | .callback = intel_no_lvds_dmi_callback, |
Jarod Wilson | 70aa96c | 2009-05-27 17:20:39 -0400 | [diff] [blame] | 591 | .ident = "AOpen Mini PC", |
| 592 | .matches = { |
| 593 | DMI_MATCH(DMI_SYS_VENDOR, "AOpen"), |
| 594 | DMI_MATCH(DMI_PRODUCT_NAME, "i965GMx-IF"), |
| 595 | }, |
| 596 | }, |
Michael Cousin | fa0864b | 2009-06-05 21:16:22 +0200 | [diff] [blame] | 597 | { |
| 598 | .callback = intel_no_lvds_dmi_callback, |
Tormod Volden | ed8c754 | 2009-07-13 22:26:48 +0200 | [diff] [blame] | 599 | .ident = "AOpen Mini PC MP915", |
| 600 | .matches = { |
| 601 | DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), |
| 602 | DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"), |
| 603 | }, |
| 604 | }, |
| 605 | { |
| 606 | .callback = intel_no_lvds_dmi_callback, |
Knut Petersen | 22ab70d | 2011-01-14 15:38:10 +0000 | [diff] [blame] | 607 | .ident = "AOpen i915GMm-HFS", |
| 608 | .matches = { |
| 609 | DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), |
| 610 | DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"), |
| 611 | }, |
| 612 | }, |
| 613 | { |
| 614 | .callback = intel_no_lvds_dmi_callback, |
Daniel Vetter | e57b688 | 2012-02-08 16:42:52 +0100 | [diff] [blame] | 615 | .ident = "AOpen i45GMx-I", |
| 616 | .matches = { |
| 617 | DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), |
| 618 | DMI_MATCH(DMI_BOARD_NAME, "i45GMx-I"), |
| 619 | }, |
| 620 | }, |
| 621 | { |
| 622 | .callback = intel_no_lvds_dmi_callback, |
Michael Cousin | fa0864b | 2009-06-05 21:16:22 +0200 | [diff] [blame] | 623 | .ident = "Aopen i945GTt-VFA", |
| 624 | .matches = { |
| 625 | DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"), |
| 626 | }, |
| 627 | }, |
Stefan Bader | 9875557ee8 | 2010-03-29 17:53:12 +0200 | [diff] [blame] | 628 | { |
| 629 | .callback = intel_no_lvds_dmi_callback, |
| 630 | .ident = "Clientron U800", |
| 631 | .matches = { |
| 632 | DMI_MATCH(DMI_SYS_VENDOR, "Clientron"), |
| 633 | DMI_MATCH(DMI_PRODUCT_NAME, "U800"), |
| 634 | }, |
| 635 | }, |
Hans de Goede | 6a574b5 | 2011-06-04 15:39:21 +0200 | [diff] [blame] | 636 | { |
Joel Sass | 44306ab | 2012-01-10 13:03:55 -0500 | [diff] [blame] | 637 | .callback = intel_no_lvds_dmi_callback, |
| 638 | .ident = "Clientron E830", |
| 639 | .matches = { |
| 640 | DMI_MATCH(DMI_SYS_VENDOR, "Clientron"), |
| 641 | DMI_MATCH(DMI_PRODUCT_NAME, "E830"), |
| 642 | }, |
| 643 | }, |
| 644 | { |
Hans de Goede | 6a574b5 | 2011-06-04 15:39:21 +0200 | [diff] [blame] | 645 | .callback = intel_no_lvds_dmi_callback, |
| 646 | .ident = "Asus EeeBox PC EB1007", |
| 647 | .matches = { |
| 648 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."), |
| 649 | DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"), |
| 650 | }, |
| 651 | }, |
Adam Jackson | 0999bbe | 2011-11-28 12:22:56 -0500 | [diff] [blame] | 652 | { |
| 653 | .callback = intel_no_lvds_dmi_callback, |
| 654 | .ident = "Asus AT5NM10T-I", |
| 655 | .matches = { |
| 656 | DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), |
| 657 | DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"), |
| 658 | }, |
| 659 | }, |
Marc Gariepy | f5b8a7e | 2012-02-09 09:35:21 -0500 | [diff] [blame] | 660 | { |
| 661 | .callback = intel_no_lvds_dmi_callback, |
Ben Mesman | 45a211d | 2013-04-16 20:00:28 +0200 | [diff] [blame] | 662 | .ident = "Hewlett-Packard HP t5740", |
Jan-Benedict Glaw | 3347111 | 2012-05-22 15:21:53 +0200 | [diff] [blame] | 663 | .matches = { |
| 664 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), |
Ben Mesman | 45a211d | 2013-04-16 20:00:28 +0200 | [diff] [blame] | 665 | DMI_MATCH(DMI_PRODUCT_NAME, " t5740"), |
Jan-Benedict Glaw | 3347111 | 2012-05-22 15:21:53 +0200 | [diff] [blame] | 666 | }, |
| 667 | }, |
| 668 | { |
| 669 | .callback = intel_no_lvds_dmi_callback, |
Marc Gariepy | f5b8a7e | 2012-02-09 09:35:21 -0500 | [diff] [blame] | 670 | .ident = "Hewlett-Packard t5745", |
| 671 | .matches = { |
| 672 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), |
Marc Gariepy | 6200497 | 2012-05-01 13:37:57 -0400 | [diff] [blame] | 673 | DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"), |
Marc Gariepy | f5b8a7e | 2012-02-09 09:35:21 -0500 | [diff] [blame] | 674 | }, |
| 675 | }, |
| 676 | { |
| 677 | .callback = intel_no_lvds_dmi_callback, |
| 678 | .ident = "Hewlett-Packard st5747", |
| 679 | .matches = { |
| 680 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), |
Marc Gariepy | 6200497 | 2012-05-01 13:37:57 -0400 | [diff] [blame] | 681 | DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"), |
Marc Gariepy | f5b8a7e | 2012-02-09 09:35:21 -0500 | [diff] [blame] | 682 | }, |
| 683 | }, |
Anisse Astier | 97effad | 2012-03-07 18:36:35 +0100 | [diff] [blame] | 684 | { |
| 685 | .callback = intel_no_lvds_dmi_callback, |
| 686 | .ident = "MSI Wind Box DC500", |
| 687 | .matches = { |
| 688 | DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"), |
| 689 | DMI_MATCH(DMI_BOARD_NAME, "MS-7469"), |
| 690 | }, |
| 691 | }, |
Sjoerd Simons | 9756fe3 | 2012-06-22 09:43:07 +0200 | [diff] [blame] | 692 | { |
| 693 | .callback = intel_no_lvds_dmi_callback, |
Calvin Walton | a51d4ed | 2012-08-24 07:56:31 -0400 | [diff] [blame] | 694 | .ident = "Gigabyte GA-D525TUD", |
| 695 | .matches = { |
| 696 | DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."), |
| 697 | DMI_MATCH(DMI_BOARD_NAME, "D525TUD"), |
| 698 | }, |
| 699 | }, |
Chris Wilson | c31407a | 2012-10-18 21:07:01 +0100 | [diff] [blame] | 700 | { |
| 701 | .callback = intel_no_lvds_dmi_callback, |
| 702 | .ident = "Supermicro X7SPA-H", |
| 703 | .matches = { |
| 704 | DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"), |
| 705 | DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"), |
| 706 | }, |
| 707 | }, |
Christian Lamparter | 9e9dd0e | 2013-04-03 14:34:11 +0200 | [diff] [blame] | 708 | { |
| 709 | .callback = intel_no_lvds_dmi_callback, |
| 710 | .ident = "Fujitsu Esprimo Q900", |
| 711 | .matches = { |
| 712 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), |
| 713 | DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"), |
| 714 | }, |
| 715 | }, |
Chris Wilson | e5614f0 | 2013-07-03 15:05:03 -0700 | [diff] [blame] | 716 | { |
| 717 | .callback = intel_no_lvds_dmi_callback, |
Rob Pearce | 645378d | 2013-10-27 16:13:42 +0000 | [diff] [blame] | 718 | .ident = "Intel D410PT", |
| 719 | .matches = { |
| 720 | DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), |
| 721 | DMI_MATCH(DMI_BOARD_NAME, "D410PT"), |
| 722 | }, |
| 723 | }, |
| 724 | { |
| 725 | .callback = intel_no_lvds_dmi_callback, |
| 726 | .ident = "Intel D425KT", |
| 727 | .matches = { |
| 728 | DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), |
| 729 | DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"), |
| 730 | }, |
| 731 | }, |
| 732 | { |
| 733 | .callback = intel_no_lvds_dmi_callback, |
Chris Wilson | e5614f0 | 2013-07-03 15:05:03 -0700 | [diff] [blame] | 734 | .ident = "Intel D510MO", |
| 735 | .matches = { |
| 736 | DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), |
| 737 | DMI_EXACT_MATCH(DMI_BOARD_NAME, "D510MO"), |
| 738 | }, |
| 739 | }, |
Jani Nikula | dcf6d29 | 2013-07-03 15:05:05 -0700 | [diff] [blame] | 740 | { |
| 741 | .callback = intel_no_lvds_dmi_callback, |
| 742 | .ident = "Intel D525MW", |
| 743 | .matches = { |
| 744 | DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), |
| 745 | DMI_EXACT_MATCH(DMI_BOARD_NAME, "D525MW"), |
| 746 | }, |
| 747 | }, |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 748 | |
| 749 | { } /* terminating entry */ |
| 750 | }; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 751 | |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 752 | /* |
| 753 | * Enumerate the child dev array parsed from VBT to check whether |
| 754 | * the LVDS is present. |
| 755 | * If it is present, return 1. |
| 756 | * If it is not present, return false. |
| 757 | * If no child dev is parsed from VBT, it assumes that the LVDS is present. |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 758 | */ |
Chris Wilson | 270eea0 | 2010-09-24 01:15:02 +0100 | [diff] [blame] | 759 | static bool lvds_is_present_in_vbt(struct drm_device *dev, |
| 760 | u8 *i2c_pin) |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 761 | { |
| 762 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 763 | int i; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 764 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 765 | if (!dev_priv->vbt.child_dev_num) |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 766 | return true; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 767 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 768 | for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 769 | union child_device_config *uchild = dev_priv->vbt.child_dev + i; |
| 770 | struct old_child_dev_config *child = &uchild->old; |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 771 | |
| 772 | /* If the device type is not LFP, continue. |
| 773 | * We have to check both the new identifiers as well as the |
| 774 | * old for compatibility with some BIOSes. |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 775 | */ |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 776 | if (child->device_type != DEVICE_TYPE_INT_LFP && |
| 777 | child->device_type != DEVICE_TYPE_LFP) |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 778 | continue; |
| 779 | |
Daniel Kurtz | 3bd7d90 | 2012-03-28 02:36:14 +0800 | [diff] [blame] | 780 | if (intel_gmbus_is_port_valid(child->i2c_pin)) |
| 781 | *i2c_pin = child->i2c_pin; |
Chris Wilson | 270eea0 | 2010-09-24 01:15:02 +0100 | [diff] [blame] | 782 | |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 783 | /* However, we cannot trust the BIOS writers to populate |
| 784 | * the VBT correctly. Since LVDS requires additional |
| 785 | * information from AIM blocks, a non-zero addin offset is |
| 786 | * a good indicator that the LVDS is actually present. |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 787 | */ |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 788 | if (child->addin_offset) |
| 789 | return true; |
| 790 | |
| 791 | /* But even then some BIOS writers perform some black magic |
| 792 | * and instantiate the device without reference to any |
| 793 | * additional data. Trust that if the VBT was written into |
| 794 | * the OpRegion then they have validated the LVDS's existence. |
| 795 | */ |
| 796 | if (dev_priv->opregion.vbt) |
| 797 | return true; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 798 | } |
Chris Wilson | 425904d | 2010-08-22 18:21:42 +0100 | [diff] [blame] | 799 | |
| 800 | return false; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 801 | } |
| 802 | |
Daniel Vetter | 1974cad | 2012-11-26 17:22:09 +0100 | [diff] [blame] | 803 | static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) |
| 804 | { |
| 805 | DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); |
| 806 | return 1; |
| 807 | } |
| 808 | |
| 809 | static const struct dmi_system_id intel_dual_link_lvds[] = { |
| 810 | { |
| 811 | .callback = intel_dual_link_lvds_callback, |
| 812 | .ident = "Apple MacBook Pro (Core i5/i7 Series)", |
| 813 | .matches = { |
| 814 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), |
| 815 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), |
| 816 | }, |
| 817 | }, |
| 818 | { } /* terminating entry */ |
| 819 | }; |
| 820 | |
| 821 | bool intel_is_dual_link_lvds(struct drm_device *dev) |
| 822 | { |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 823 | struct intel_encoder *encoder; |
| 824 | struct intel_lvds_encoder *lvds_encoder; |
| 825 | |
Damien Lespiau | b2784e1 | 2014-08-05 11:29:37 +0100 | [diff] [blame] | 826 | for_each_intel_encoder(dev, encoder) { |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 827 | if (encoder->type == INTEL_OUTPUT_LVDS) { |
| 828 | lvds_encoder = to_lvds_encoder(&encoder->base); |
| 829 | |
| 830 | return lvds_encoder->is_dual_link; |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | return false; |
| 835 | } |
| 836 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 837 | static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder) |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 838 | { |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 839 | struct drm_device *dev = lvds_encoder->base.base.dev; |
Daniel Vetter | 1974cad | 2012-11-26 17:22:09 +0100 | [diff] [blame] | 840 | unsigned int val; |
| 841 | struct drm_i915_private *dev_priv = dev->dev_private; |
Daniel Vetter | 1974cad | 2012-11-26 17:22:09 +0100 | [diff] [blame] | 842 | |
| 843 | /* use the module option value if specified */ |
Jani Nikula | d330a95 | 2014-01-21 11:24:25 +0200 | [diff] [blame] | 844 | if (i915.lvds_channel_mode > 0) |
| 845 | return i915.lvds_channel_mode == 2; |
Daniel Vetter | 1974cad | 2012-11-26 17:22:09 +0100 | [diff] [blame] | 846 | |
| 847 | if (dmi_check_system(intel_dual_link_lvds)) |
| 848 | return true; |
| 849 | |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 850 | /* BIOS should set the proper LVDS register value at boot, but |
| 851 | * in reality, it doesn't set the value when the lid is closed; |
| 852 | * we need to check "the value to be set" in VBT when LVDS |
| 853 | * register is uninitialized. |
| 854 | */ |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 855 | val = I915_READ(lvds_encoder->reg); |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 856 | if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 857 | val = dev_priv->vbt.bios_lvds_val; |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 858 | |
Daniel Vetter | 1974cad | 2012-11-26 17:22:09 +0100 | [diff] [blame] | 859 | return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; |
| 860 | } |
| 861 | |
Chris Wilson | f3cfcba | 2012-02-09 09:35:53 +0000 | [diff] [blame] | 862 | static bool intel_lvds_supported(struct drm_device *dev) |
| 863 | { |
| 864 | /* With the introduction of the PCH we gained a dedicated |
| 865 | * LVDS presence pin, use it. */ |
Paulo Zanoni | 311e359 | 2013-03-06 20:03:19 -0300 | [diff] [blame] | 866 | if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)) |
Chris Wilson | f3cfcba | 2012-02-09 09:35:53 +0000 | [diff] [blame] | 867 | return true; |
| 868 | |
| 869 | /* Otherwise LVDS was only attached to mobile products, |
| 870 | * except for the inglorious 830gm */ |
Paulo Zanoni | 311e359 | 2013-03-06 20:03:19 -0300 | [diff] [blame] | 871 | if (INTEL_INFO(dev)->gen <= 4 && IS_MOBILE(dev) && !IS_I830(dev)) |
| 872 | return true; |
| 873 | |
| 874 | return false; |
Chris Wilson | f3cfcba | 2012-02-09 09:35:53 +0000 | [diff] [blame] | 875 | } |
| 876 | |
Zhao Yakui | 18f9ed1 | 2009-11-20 03:24:16 +0000 | [diff] [blame] | 877 | /** |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 878 | * intel_lvds_init - setup LVDS connectors on this device |
| 879 | * @dev: drm device |
| 880 | * |
| 881 | * Create the connector, register the LVDS DDC bus, and try to figure out what |
| 882 | * modes we can display on the LVDS panel (if present). |
| 883 | */ |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 884 | void intel_lvds_init(struct drm_device *dev) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 885 | { |
| 886 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 887 | struct intel_lvds_encoder *lvds_encoder; |
Eric Anholt | 21d40d3 | 2010-03-25 11:11:14 -0700 | [diff] [blame] | 888 | struct intel_encoder *intel_encoder; |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 889 | struct intel_lvds_connector *lvds_connector; |
Zhenyu Wang | bb8a356 | 2010-03-29 16:40:50 +0800 | [diff] [blame] | 890 | struct intel_connector *intel_connector; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 891 | struct drm_connector *connector; |
| 892 | struct drm_encoder *encoder; |
| 893 | struct drm_display_mode *scan; /* *modes, *bios_mode; */ |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 894 | struct drm_display_mode *fixed_mode = NULL; |
Vandana Kannan | 4b6ed68 | 2014-02-11 14:26:36 +0530 | [diff] [blame] | 895 | struct drm_display_mode *downclock_mode = NULL; |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 896 | struct edid *edid; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 897 | struct drm_crtc *crtc; |
| 898 | u32 lvds; |
Chris Wilson | 270eea0 | 2010-09-24 01:15:02 +0100 | [diff] [blame] | 899 | int pipe; |
| 900 | u8 pin; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 901 | |
Chris Wilson | f3cfcba | 2012-02-09 09:35:53 +0000 | [diff] [blame] | 902 | if (!intel_lvds_supported(dev)) |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 903 | return; |
Chris Wilson | f3cfcba | 2012-02-09 09:35:53 +0000 | [diff] [blame] | 904 | |
Jarod Wilson | 425d244 | 2009-05-05 10:00:25 -0400 | [diff] [blame] | 905 | /* Skip init on machines we know falsely report LVDS */ |
| 906 | if (dmi_check_system(intel_no_lvds)) |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 907 | return; |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 908 | |
Chris Wilson | 270eea0 | 2010-09-24 01:15:02 +0100 | [diff] [blame] | 909 | pin = GMBUS_PORT_PANEL; |
| 910 | if (!lvds_is_present_in_vbt(dev, &pin)) { |
Matthew Garrett | 11ba159 | 2009-12-15 13:55:24 -0500 | [diff] [blame] | 911 | DRM_DEBUG_KMS("LVDS is not present in VBT\n"); |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 912 | return; |
Zhao Yakui | 7cf4f69 | 2009-11-24 09:48:47 +0800 | [diff] [blame] | 913 | } |
Zhao Yakui | e99da35 | 2009-06-26 09:46:18 +0800 | [diff] [blame] | 914 | |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 915 | if (HAS_PCH_SPLIT(dev)) { |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 916 | if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 917 | return; |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 918 | if (dev_priv->vbt.edp_support) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 919 | DRM_DEBUG_KMS("disable LVDS for eDP support\n"); |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 920 | return; |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 921 | } |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 922 | } |
| 923 | |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 924 | lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL); |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 925 | if (!lvds_encoder) |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 926 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 927 | |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 928 | lvds_connector = kzalloc(sizeof(*lvds_connector), GFP_KERNEL); |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 929 | if (!lvds_connector) { |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 930 | kfree(lvds_encoder); |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 931 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 932 | } |
| 933 | |
Jani Nikula | 62165e0 | 2012-10-19 14:51:47 +0300 | [diff] [blame] | 934 | lvds_encoder->attached_connector = lvds_connector; |
Zhenyu Wang | bb8a356 | 2010-03-29 16:40:50 +0800 | [diff] [blame] | 935 | |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 936 | intel_encoder = &lvds_encoder->base; |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 937 | encoder = &intel_encoder->base; |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 938 | intel_connector = &lvds_connector->base; |
Chris Wilson | ea5b213 | 2010-08-04 13:50:23 +0100 | [diff] [blame] | 939 | connector = &intel_connector->base; |
Zhenyu Wang | bb8a356 | 2010-03-29 16:40:50 +0800 | [diff] [blame] | 940 | drm_connector_init(dev, &intel_connector->base, &intel_lvds_connector_funcs, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 941 | DRM_MODE_CONNECTOR_LVDS); |
| 942 | |
Chris Wilson | 4ef69c7 | 2010-09-09 15:14:28 +0100 | [diff] [blame] | 943 | drm_encoder_init(dev, &intel_encoder->base, &intel_lvds_enc_funcs, |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 944 | DRM_MODE_ENCODER_LVDS); |
| 945 | |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 946 | intel_encoder->enable = intel_enable_lvds; |
Daniel Vetter | f6736a1 | 2013-06-05 13:34:30 +0200 | [diff] [blame] | 947 | intel_encoder->pre_enable = intel_pre_enable_lvds; |
Daniel Vetter | 7ae8923 | 2013-03-27 00:44:52 +0100 | [diff] [blame] | 948 | intel_encoder->compute_config = intel_lvds_compute_config; |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 949 | intel_encoder->disable = intel_disable_lvds; |
Daniel Vetter | b1dc332 | 2012-07-02 21:09:00 +0200 | [diff] [blame] | 950 | intel_encoder->get_hw_state = intel_lvds_get_hw_state; |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 951 | intel_encoder->get_config = intel_lvds_get_config; |
Daniel Vetter | b1dc332 | 2012-07-02 21:09:00 +0200 | [diff] [blame] | 952 | intel_connector->get_hw_state = intel_connector_get_hw_state; |
Imre Deak | 4932e2c | 2014-02-11 17:12:48 +0200 | [diff] [blame] | 953 | intel_connector->unregister = intel_connector_unregister; |
Daniel Vetter | c22834e | 2012-06-30 15:31:28 +0200 | [diff] [blame] | 954 | |
Chris Wilson | df0e924 | 2010-09-09 16:20:55 +0100 | [diff] [blame] | 955 | intel_connector_attach_encoder(intel_connector, intel_encoder); |
Eric Anholt | 21d40d3 | 2010-03-25 11:11:14 -0700 | [diff] [blame] | 956 | intel_encoder->type = INTEL_OUTPUT_LVDS; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 957 | |
Ville Syrjälä | bc079e8 | 2014-03-03 16:15:28 +0200 | [diff] [blame] | 958 | intel_encoder->cloneable = 0; |
Jesse Barnes | 27f8227 | 2011-09-02 12:54:37 -0700 | [diff] [blame] | 959 | if (HAS_PCH_SPLIT(dev)) |
| 960 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
Daniel Vetter | 0b9f43a | 2012-06-05 10:07:11 +0200 | [diff] [blame] | 961 | else if (IS_GEN4(dev)) |
| 962 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1); |
Jesse Barnes | 27f8227 | 2011-09-02 12:54:37 -0700 | [diff] [blame] | 963 | else |
| 964 | intel_encoder->crtc_mask = (1 << 1); |
| 965 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 966 | drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs); |
| 967 | connector->display_info.subpixel_order = SubPixelHorizontalRGB; |
| 968 | connector->interlace_allowed = false; |
| 969 | connector->doublescan_allowed = false; |
| 970 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 971 | if (HAS_PCH_SPLIT(dev)) { |
| 972 | lvds_encoder->reg = PCH_LVDS; |
| 973 | } else { |
| 974 | lvds_encoder->reg = LVDS; |
| 975 | } |
| 976 | |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 977 | /* create the scaling mode property */ |
| 978 | drm_mode_create_scaling_mode_property(dev); |
Rob Clark | 662595d | 2012-10-11 20:36:04 -0500 | [diff] [blame] | 979 | drm_object_attach_property(&connector->base, |
Zhao Yakui | 3fbe18d | 2009-06-22 15:31:25 +0800 | [diff] [blame] | 980 | dev->mode_config.scaling_mode_property, |
Jesse Barnes | dd1ea37 | 2010-06-24 11:05:10 -0700 | [diff] [blame] | 981 | DRM_MODE_SCALE_ASPECT); |
Jani Nikula | 4d89152 | 2012-10-26 12:03:59 +0300 | [diff] [blame] | 982 | intel_connector->panel.fitting_mode = DRM_MODE_SCALE_ASPECT; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 983 | /* |
| 984 | * LVDS discovery: |
| 985 | * 1) check for EDID on DDC |
| 986 | * 2) check for VBT data |
| 987 | * 3) check to see if LVDS is already on |
| 988 | * if none of the above, no panel |
| 989 | * 4) make sure lid is open |
| 990 | * if closed, act like it's not there for now |
| 991 | */ |
| 992 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 993 | /* |
| 994 | * Attempt to get the fixed panel mode from DDC. Assume that the |
| 995 | * preferred mode is the right one. |
| 996 | */ |
Daniel Vetter | 4da9854 | 2014-03-21 23:22:35 +0100 | [diff] [blame] | 997 | mutex_lock(&dev->mode_config.mutex); |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 998 | edid = drm_get_edid(connector, intel_gmbus_get_adapter(dev_priv, pin)); |
| 999 | if (edid) { |
| 1000 | if (drm_add_edid_modes(connector, edid)) { |
Chris Wilson | 3f8ff0e | 2010-11-08 23:20:52 +0000 | [diff] [blame] | 1001 | drm_mode_connector_update_edid_property(connector, |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 1002 | edid); |
Chris Wilson | 3f8ff0e | 2010-11-08 23:20:52 +0000 | [diff] [blame] | 1003 | } else { |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 1004 | kfree(edid); |
| 1005 | edid = ERR_PTR(-EINVAL); |
Chris Wilson | 3f8ff0e | 2010-11-08 23:20:52 +0000 | [diff] [blame] | 1006 | } |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 1007 | } else { |
| 1008 | edid = ERR_PTR(-ENOENT); |
Chris Wilson | 3f8ff0e | 2010-11-08 23:20:52 +0000 | [diff] [blame] | 1009 | } |
Jani Nikula | 9cd300e | 2012-10-19 14:51:52 +0300 | [diff] [blame] | 1010 | lvds_connector->base.edid = edid; |
| 1011 | |
| 1012 | if (IS_ERR_OR_NULL(edid)) { |
Chris Wilson | 788319d | 2010-09-12 17:34:41 +0100 | [diff] [blame] | 1013 | /* Didn't get an EDID, so |
| 1014 | * Set wide sync ranges so we get all modes |
| 1015 | * handed to valid_mode for checking |
| 1016 | */ |
| 1017 | connector->display_info.min_vfreq = 0; |
| 1018 | connector->display_info.max_vfreq = 200; |
| 1019 | connector->display_info.min_hfreq = 0; |
| 1020 | connector->display_info.max_hfreq = 200; |
| 1021 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1022 | |
| 1023 | list_for_each_entry(scan, &connector->probed_modes, head) { |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1024 | if (scan->type & DRM_MODE_TYPE_PREFERRED) { |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1025 | DRM_DEBUG_KMS("using preferred mode from EDID: "); |
| 1026 | drm_mode_debug_printmodeline(scan); |
| 1027 | |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 1028 | fixed_mode = drm_mode_duplicate(dev, scan); |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1029 | if (fixed_mode) { |
Vandana Kannan | 4b6ed68 | 2014-02-11 14:26:36 +0530 | [diff] [blame] | 1030 | downclock_mode = |
Vandana Kannan | ec9ed19 | 2013-12-10 13:37:36 +0530 | [diff] [blame] | 1031 | intel_find_panel_downclock(dev, |
| 1032 | fixed_mode, connector); |
Vandana Kannan | 4b6ed68 | 2014-02-11 14:26:36 +0530 | [diff] [blame] | 1033 | if (downclock_mode != NULL && |
| 1034 | i915.lvds_downclock) { |
Vandana Kannan | ec9ed19 | 2013-12-10 13:37:36 +0530 | [diff] [blame] | 1035 | /* We found the downclock for LVDS. */ |
| 1036 | dev_priv->lvds_downclock_avail = true; |
| 1037 | dev_priv->lvds_downclock = |
Vandana Kannan | ec9ed19 | 2013-12-10 13:37:36 +0530 | [diff] [blame] | 1038 | downclock_mode->clock; |
| 1039 | DRM_DEBUG_KMS("LVDS downclock is found" |
| 1040 | " in EDID. Normal clock %dKhz, " |
| 1041 | "downclock %dKhz\n", |
| 1042 | fixed_mode->clock, |
| 1043 | dev_priv->lvds_downclock); |
| 1044 | } |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1045 | goto out; |
| 1046 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1047 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1048 | } |
| 1049 | |
| 1050 | /* Failed to get EDID, what about VBT? */ |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 1051 | if (dev_priv->vbt.lfp_lvds_vbt_mode) { |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1052 | DRM_DEBUG_KMS("using mode from VBT: "); |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 1053 | drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode); |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1054 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 1055 | fixed_mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode); |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 1056 | if (fixed_mode) { |
| 1057 | fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; |
Jesse Barnes | e285f3cd | 2009-01-14 10:53:36 -0800 | [diff] [blame] | 1058 | goto out; |
| 1059 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1060 | } |
| 1061 | |
| 1062 | /* |
| 1063 | * If we didn't get EDID, try checking if the panel is already turned |
| 1064 | * on. If so, assume that whatever is currently programmed is the |
| 1065 | * correct mode. |
| 1066 | */ |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1067 | |
Adam Jackson | f2b115e | 2009-12-03 17:14:42 -0500 | [diff] [blame] | 1068 | /* Ironlake: FIXME if still fail, not try pipe mode now */ |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 1069 | if (HAS_PCH_SPLIT(dev)) |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1070 | goto failed; |
| 1071 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1072 | lvds = I915_READ(LVDS); |
| 1073 | pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0; |
Chris Wilson | f875c15 | 2010-09-09 15:44:14 +0100 | [diff] [blame] | 1074 | crtc = intel_get_crtc_for_pipe(dev, pipe); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1075 | |
| 1076 | if (crtc && (lvds & LVDS_PORT_EN)) { |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 1077 | fixed_mode = intel_crtc_mode_get(dev, crtc); |
| 1078 | if (fixed_mode) { |
Chris Wilson | 6a9d51b | 2012-11-21 16:14:03 +0000 | [diff] [blame] | 1079 | DRM_DEBUG_KMS("using current (BIOS) mode: "); |
| 1080 | drm_mode_debug_printmodeline(fixed_mode); |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 1081 | fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; |
Paul Collins | 565dcd4 | 2009-02-04 23:05:41 +1300 | [diff] [blame] | 1082 | goto out; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | /* If we still don't have a mode after all that, give up. */ |
Jani Nikula | dd06f90 | 2012-10-19 14:51:50 +0300 | [diff] [blame] | 1087 | if (!fixed_mode) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1088 | goto failed; |
| 1089 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1090 | out: |
Daniel Vetter | 4da9854 | 2014-03-21 23:22:35 +0100 | [diff] [blame] | 1091 | mutex_unlock(&dev->mode_config.mutex); |
| 1092 | |
Daniel Vetter | 7dec060 | 2012-09-11 14:12:25 +0200 | [diff] [blame] | 1093 | lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder); |
Daniel Vetter | 13c7d87 | 2012-11-26 17:22:10 +0100 | [diff] [blame] | 1094 | DRM_DEBUG_KMS("detected %s-link lvds configuration\n", |
| 1095 | lvds_encoder->is_dual_link ? "dual" : "single"); |
| 1096 | |
Paulo Zanoni | 1f835a7 | 2014-07-04 13:38:36 -0300 | [diff] [blame] | 1097 | lvds_encoder->a3_power = I915_READ(lvds_encoder->reg) & |
| 1098 | LVDS_A3_POWER_MASK; |
| 1099 | |
Daniel Vetter | 24ded20 | 2012-06-05 12:14:54 +0200 | [diff] [blame] | 1100 | /* |
| 1101 | * Unlock registers and just |
| 1102 | * leave them unlocked |
| 1103 | */ |
Eric Anholt | c619eed | 2010-01-28 16:45:52 -0800 | [diff] [blame] | 1104 | if (HAS_PCH_SPLIT(dev)) { |
Keith Packard | ed10fca | 2011-08-06 10:33:12 -0700 | [diff] [blame] | 1105 | I915_WRITE(PCH_PP_CONTROL, |
| 1106 | I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS); |
| 1107 | } else { |
Keith Packard | ed10fca | 2011-08-06 10:33:12 -0700 | [diff] [blame] | 1108 | I915_WRITE(PP_CONTROL, |
| 1109 | I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); |
Zhenyu Wang | 541998a | 2009-06-05 15:38:44 +0800 | [diff] [blame] | 1110 | } |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 1111 | lvds_connector->lid_notifier.notifier_call = intel_lid_notify; |
| 1112 | if (acpi_lid_notifier_register(&lvds_connector->lid_notifier)) { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 1113 | DRM_DEBUG_KMS("lid notifier registration failed\n"); |
Jani Nikula | db1740a | 2012-10-19 14:51:45 +0300 | [diff] [blame] | 1114 | lvds_connector->lid_notifier.notifier_call = NULL; |
Jesse Barnes | c1c7af6 | 2009-09-10 15:28:03 -0700 | [diff] [blame] | 1115 | } |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 1116 | drm_connector_register(connector); |
Matthew Garrett | aaa6fd2 | 2011-08-12 12:11:33 +0200 | [diff] [blame] | 1117 | |
Vandana Kannan | 4b6ed68 | 2014-02-11 14:26:36 +0530 | [diff] [blame] | 1118 | intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); |
Jani Nikula | 0657b6b | 2012-10-19 14:51:46 +0300 | [diff] [blame] | 1119 | intel_panel_setup_backlight(connector); |
Matthew Garrett | aaa6fd2 | 2011-08-12 12:11:33 +0200 | [diff] [blame] | 1120 | |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 1121 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1122 | |
| 1123 | failed: |
Daniel Vetter | 4da9854 | 2014-03-21 23:22:35 +0100 | [diff] [blame] | 1124 | mutex_unlock(&dev->mode_config.mutex); |
| 1125 | |
Zhao Yakui | 8a4c47f | 2009-07-20 13:48:04 +0800 | [diff] [blame] | 1126 | DRM_DEBUG_KMS("No LVDS modes found, disabling.\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1127 | drm_connector_cleanup(connector); |
Shaohua Li | 1991bdf | 2009-11-17 17:19:23 +0800 | [diff] [blame] | 1128 | drm_encoder_cleanup(encoder); |
Jani Nikula | 29b99b4 | 2012-10-19 14:51:43 +0300 | [diff] [blame] | 1129 | kfree(lvds_encoder); |
Jani Nikula | c7362c4 | 2012-10-19 14:51:44 +0300 | [diff] [blame] | 1130 | kfree(lvds_connector); |
Daniel Vetter | c909335 | 2013-06-06 22:22:47 +0200 | [diff] [blame] | 1131 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1132 | } |