blob: 8e215777c7f49460499e23a915a1a4b88366838e [file] [log] [blame]
Jesse Barnes79e53942008-11-07 14:24:08 -08001/*
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 Barnesc1c7af62009-09-10 15:28:03 -070030#include <acpi/button.h>
Paul Collins565dcd42009-02-04 23:05:41 +130031#include <linux/dmi.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080032#include <linux/i2c.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090033#include <linux/slab.h>
Lukas Wunner4eddaee2016-01-11 20:09:20 +010034#include <linux/vga_switcheroo.h>
David Howells760285e2012-10-02 18:01:07 +010035#include <drm/drmP.h>
Matt Roperc6f95f22015-01-22 16:50:32 -080036#include <drm/drm_atomic_helper.h>
David Howells760285e2012-10-02 18:01:07 +010037#include <drm/drm_crtc.h>
38#include <drm/drm_edid.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080039#include "intel_drv.h"
David Howells760285e2012-10-02 18:01:07 +010040#include <drm/i915_drm.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080041#include "i915_drv.h"
Zhao Yakuie99da352009-06-26 09:46:18 +080042#include <linux/acpi.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080043
Zhao Yakui3fbe18d2009-06-22 15:31:25 +080044/* Private structure for the integrated LVDS support */
Jani Nikulac7362c42012-10-19 14:51:44 +030045struct intel_lvds_connector {
46 struct intel_connector base;
Jani Nikuladb1740a2012-10-19 14:51:45 +030047
48 struct notifier_block lid_notifier;
Jani Nikulac7362c42012-10-19 14:51:44 +030049};
50
Imre Deaked6143b82016-08-10 14:07:31 +030051struct intel_lvds_pps {
52 /* 100us units */
53 int t1_t2;
54 int t3;
55 int t4;
56 int t5;
57 int tx;
58
59 int divider;
60
61 int port;
62 bool powerdown_on_reset;
63};
64
Jani Nikula29b99b42012-10-19 14:51:43 +030065struct intel_lvds_encoder {
Chris Wilsonea5b2132010-08-04 13:50:23 +010066 struct intel_encoder base;
Chris Wilson788319d2010-09-12 17:34:41 +010067
Daniel Vetter13c7d872012-11-26 17:22:10 +010068 bool is_dual_link;
Ville Syrjäläf0f59a02015-11-18 15:33:26 +020069 i915_reg_t reg;
Paulo Zanoni1f835a72014-07-04 13:38:36 -030070 u32 a3_power;
Chris Wilson788319d2010-09-12 17:34:41 +010071
Imre Deaked6143b82016-08-10 14:07:31 +030072 struct intel_lvds_pps init_pps;
73 u32 init_lvds_val;
74
Jani Nikula62165e02012-10-19 14:51:47 +030075 struct intel_lvds_connector *attached_connector;
Zhao Yakui3fbe18d2009-06-22 15:31:25 +080076};
77
Jani Nikula29b99b42012-10-19 14:51:43 +030078static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder)
Chris Wilsonea5b2132010-08-04 13:50:23 +010079{
Jani Nikula29b99b42012-10-19 14:51:43 +030080 return container_of(encoder, struct intel_lvds_encoder, base.base);
Chris Wilsonea5b2132010-08-04 13:50:23 +010081}
82
Jani Nikulac7362c42012-10-19 14:51:44 +030083static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector)
Chris Wilson788319d2010-09-12 17:34:41 +010084{
Jani Nikulac7362c42012-10-19 14:51:44 +030085 return container_of(connector, struct intel_lvds_connector, base.base);
Chris Wilson788319d2010-09-12 17:34:41 +010086}
87
Daniel Vetterb1dc3322012-07-02 21:09:00 +020088static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
89 enum pipe *pipe)
90{
91 struct drm_device *dev = encoder->base.dev;
Chris Wilsonfac5e232016-07-04 11:34:36 +010092 struct drm_i915_private *dev_priv = to_i915(dev);
Daniel Vetter7dec0602012-09-11 14:12:25 +020093 struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
94 u32 tmp;
Imre Deakecb24482016-02-12 18:55:21 +020095 bool ret;
Daniel Vetterb1dc3322012-07-02 21:09:00 +020096
Ander Conselvan de Oliveira79f255a2017-02-22 08:34:27 +020097 if (!intel_display_power_get_if_enabled(dev_priv,
98 encoder->power_domain))
Paulo Zanoni34a6c702014-07-04 13:38:35 -030099 return false;
100
Imre Deakecb24482016-02-12 18:55:21 +0200101 ret = false;
102
Daniel Vetter7dec0602012-09-11 14:12:25 +0200103 tmp = I915_READ(lvds_encoder->reg);
Daniel Vetterb1dc3322012-07-02 21:09:00 +0200104
105 if (!(tmp & LVDS_PORT_EN))
Imre Deakecb24482016-02-12 18:55:21 +0200106 goto out;
Daniel Vetterb1dc3322012-07-02 21:09:00 +0200107
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100108 if (HAS_PCH_CPT(dev_priv))
Daniel Vetterb1dc3322012-07-02 21:09:00 +0200109 *pipe = PORT_TO_PIPE_CPT(tmp);
110 else
111 *pipe = PORT_TO_PIPE(tmp);
112
Imre Deakecb24482016-02-12 18:55:21 +0200113 ret = true;
114
115out:
Ander Conselvan de Oliveira79f255a2017-02-22 08:34:27 +0200116 intel_display_power_put(dev_priv, encoder->power_domain);
Imre Deakecb24482016-02-12 18:55:21 +0200117
118 return ret;
Daniel Vetterb1dc3322012-07-02 21:09:00 +0200119}
120
Jesse Barnes045ac3b2013-05-14 17:08:26 -0700121static void intel_lvds_get_config(struct intel_encoder *encoder,
Ander Conselvan de Oliveira5cec2582015-01-15 14:55:21 +0200122 struct intel_crtc_state *pipe_config)
Jesse Barnes045ac3b2013-05-14 17:08:26 -0700123{
Tvrtko Ursulin66478472016-11-16 08:55:40 +0000124 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
Ville Syrjäläd0669d02015-09-18 20:03:45 +0300125 struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
126 u32 tmp, flags = 0;
Jesse Barnes045ac3b2013-05-14 17:08:26 -0700127
Ville Syrjäläd0669d02015-09-18 20:03:45 +0300128 tmp = I915_READ(lvds_encoder->reg);
Jesse Barnes045ac3b2013-05-14 17:08:26 -0700129 if (tmp & LVDS_HSYNC_POLARITY)
130 flags |= DRM_MODE_FLAG_NHSYNC;
131 else
132 flags |= DRM_MODE_FLAG_PHSYNC;
133 if (tmp & LVDS_VSYNC_POLARITY)
134 flags |= DRM_MODE_FLAG_NVSYNC;
135 else
136 flags |= DRM_MODE_FLAG_PVSYNC;
137
Ander Conselvan de Oliveira2d112de2015-01-15 14:55:22 +0200138 pipe_config->base.adjusted_mode.flags |= flags;
Daniel Vetter06922822013-07-11 13:35:40 +0200139
Tvrtko Ursulin66478472016-11-16 08:55:40 +0000140 if (INTEL_GEN(dev_priv) < 5)
Jani Nikulaa0cbe6a2016-04-29 15:34:02 +0300141 pipe_config->gmch_pfit.lvds_border_bits =
142 tmp & LVDS_BORDER_ENABLE;
143
Daniel Vetter6b89cdd2014-07-09 22:35:53 +0200144 /* gen2/3 store dither state in pfit control, needs to match */
Tvrtko Ursulin66478472016-11-16 08:55:40 +0000145 if (INTEL_GEN(dev_priv) < 4) {
Daniel Vetter6b89cdd2014-07-09 22:35:53 +0200146 tmp = I915_READ(PFIT_CONTROL);
147
148 pipe_config->gmch_pfit.control |= tmp & PANEL_8TO6_DITHER_ENABLE;
149 }
150
Ville Syrjäläe3b247d2016-02-17 21:41:09 +0200151 pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock;
Jesse Barnes045ac3b2013-05-14 17:08:26 -0700152}
153
Imre Deaked6143b82016-08-10 14:07:31 +0300154static void intel_lvds_pps_get_hw_state(struct drm_i915_private *dev_priv,
155 struct intel_lvds_pps *pps)
156{
157 u32 val;
158
159 pps->powerdown_on_reset = I915_READ(PP_CONTROL(0)) & PANEL_POWER_RESET;
160
161 val = I915_READ(PP_ON_DELAYS(0));
162 pps->port = (val & PANEL_PORT_SELECT_MASK) >>
163 PANEL_PORT_SELECT_SHIFT;
164 pps->t1_t2 = (val & PANEL_POWER_UP_DELAY_MASK) >>
165 PANEL_POWER_UP_DELAY_SHIFT;
166 pps->t5 = (val & PANEL_LIGHT_ON_DELAY_MASK) >>
167 PANEL_LIGHT_ON_DELAY_SHIFT;
168
169 val = I915_READ(PP_OFF_DELAYS(0));
170 pps->t3 = (val & PANEL_POWER_DOWN_DELAY_MASK) >>
171 PANEL_POWER_DOWN_DELAY_SHIFT;
172 pps->tx = (val & PANEL_LIGHT_OFF_DELAY_MASK) >>
173 PANEL_LIGHT_OFF_DELAY_SHIFT;
174
175 val = I915_READ(PP_DIVISOR(0));
176 pps->divider = (val & PP_REFERENCE_DIVIDER_MASK) >>
177 PP_REFERENCE_DIVIDER_SHIFT;
178 val = (val & PANEL_POWER_CYCLE_DELAY_MASK) >>
179 PANEL_POWER_CYCLE_DELAY_SHIFT;
180 /*
181 * Remove the BSpec specified +1 (100ms) offset that accounts for a
182 * too short power-cycle delay due to the asynchronous programming of
183 * the register.
184 */
185 if (val)
186 val--;
187 /* Convert from 100ms to 100us units */
188 pps->t4 = val * 1000;
189
190 if (INTEL_INFO(dev_priv)->gen <= 4 &&
191 pps->t1_t2 == 0 && pps->t5 == 0 && pps->t3 == 0 && pps->tx == 0) {
192 DRM_DEBUG_KMS("Panel power timings uninitialized, "
193 "setting defaults\n");
194 /* Set T2 to 40ms and T5 to 200ms in 100 usec units */
195 pps->t1_t2 = 40 * 10;
196 pps->t5 = 200 * 10;
197 /* Set T3 to 35ms and Tx to 200ms in 100 usec units */
198 pps->t3 = 35 * 10;
199 pps->tx = 200 * 10;
200 }
201
202 DRM_DEBUG_DRIVER("LVDS PPS:t1+t2 %d t3 %d t4 %d t5 %d tx %d "
203 "divider %d port %d powerdown_on_reset %d\n",
204 pps->t1_t2, pps->t3, pps->t4, pps->t5, pps->tx,
205 pps->divider, pps->port, pps->powerdown_on_reset);
206}
207
208static void intel_lvds_pps_init_hw(struct drm_i915_private *dev_priv,
209 struct intel_lvds_pps *pps)
210{
211 u32 val;
212
213 val = I915_READ(PP_CONTROL(0));
214 WARN_ON((val & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS);
215 if (pps->powerdown_on_reset)
216 val |= PANEL_POWER_RESET;
217 I915_WRITE(PP_CONTROL(0), val);
218
219 I915_WRITE(PP_ON_DELAYS(0), (pps->port << PANEL_PORT_SELECT_SHIFT) |
220 (pps->t1_t2 << PANEL_POWER_UP_DELAY_SHIFT) |
221 (pps->t5 << PANEL_LIGHT_ON_DELAY_SHIFT));
222 I915_WRITE(PP_OFF_DELAYS(0), (pps->t3 << PANEL_POWER_DOWN_DELAY_SHIFT) |
223 (pps->tx << PANEL_LIGHT_OFF_DELAY_SHIFT));
224
225 val = pps->divider << PP_REFERENCE_DIVIDER_SHIFT;
226 val |= (DIV_ROUND_UP(pps->t4, 1000) + 1) <<
227 PANEL_POWER_CYCLE_DELAY_SHIFT;
228 I915_WRITE(PP_DIVISOR(0), val);
229}
230
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200231static void intel_pre_enable_lvds(struct intel_encoder *encoder,
232 struct intel_crtc_state *pipe_config,
233 struct drm_connector_state *conn_state)
Daniel Vetterfc683092012-11-26 17:22:12 +0100234{
235 struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200236 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
237 struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
238 const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
Daniel Vetter55607e82013-06-16 21:42:39 +0200239 int pipe = crtc->pipe;
Daniel Vetterfc683092012-11-26 17:22:12 +0100240 u32 temp;
241
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200242 if (HAS_PCH_SPLIT(dev_priv)) {
Daniel Vetter55607e82013-06-16 21:42:39 +0200243 assert_fdi_rx_pll_disabled(dev_priv, pipe);
244 assert_shared_dpll_disabled(dev_priv,
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200245 pipe_config->shared_dpll);
Daniel Vetter55607e82013-06-16 21:42:39 +0200246 } else {
247 assert_pll_disabled(dev_priv, pipe);
248 }
249
Imre Deaked6143b82016-08-10 14:07:31 +0300250 intel_lvds_pps_init_hw(dev_priv, &lvds_encoder->init_pps);
251
252 temp = lvds_encoder->init_lvds_val;
Daniel Vetterfc683092012-11-26 17:22:12 +0100253 temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
Daniel Vetter62810e52012-11-26 17:22:13 +0100254
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200255 if (HAS_PCH_CPT(dev_priv)) {
Daniel Vetter62810e52012-11-26 17:22:13 +0100256 temp &= ~PORT_TRANS_SEL_MASK;
257 temp |= PORT_TRANS_SEL_CPT(pipe);
Daniel Vetterfc683092012-11-26 17:22:12 +0100258 } else {
Daniel Vetter62810e52012-11-26 17:22:13 +0100259 if (pipe == 1) {
260 temp |= LVDS_PIPEB_SELECT;
261 } else {
262 temp &= ~LVDS_PIPEB_SELECT;
263 }
Daniel Vetterfc683092012-11-26 17:22:12 +0100264 }
Daniel Vetter62810e52012-11-26 17:22:13 +0100265
Daniel Vetterfc683092012-11-26 17:22:12 +0100266 /* set the corresponsding LVDS_BORDER bit */
Daniel Vetter2fa2fe92013-05-07 23:34:16 +0200267 temp &= ~LVDS_BORDER_ENABLE;
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200268 temp |= pipe_config->gmch_pfit.lvds_border_bits;
Daniel Vetterfc683092012-11-26 17:22:12 +0100269 /* Set the B0-B3 data pairs corresponding to whether we're going to
270 * set the DPLLs for dual-channel mode or not.
271 */
272 if (lvds_encoder->is_dual_link)
273 temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
274 else
275 temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
276
277 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
278 * appropriately here, but we need to look more thoroughly into how
Paulo Zanoni1f835a72014-07-04 13:38:36 -0300279 * panels behave in the two modes. For now, let's just maintain the
280 * value we got from the BIOS.
Daniel Vetterfc683092012-11-26 17:22:12 +0100281 */
Chris Wilsonf1fda742016-07-02 15:36:05 +0100282 temp &= ~LVDS_A3_POWER_MASK;
283 temp |= lvds_encoder->a3_power;
Daniel Vetter62810e52012-11-26 17:22:13 +0100284
285 /* Set the dithering flag on LVDS as needed, note that there is no
286 * special lvds dither control bit on pch-split platforms, dithering is
287 * only controlled through the PIPECONF reg. */
Tvrtko Ursulin7e22dbb2016-05-10 10:57:06 +0100288 if (IS_GEN4(dev_priv)) {
Daniel Vetterd8b32242013-04-25 17:54:44 +0200289 /* Bspec wording suggests that LVDS port dithering only exists
290 * for 18bpp panels. */
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200291 if (pipe_config->dither && pipe_config->pipe_bpp == 18)
Daniel Vetterfc683092012-11-26 17:22:12 +0100292 temp |= LVDS_ENABLE_DITHER;
293 else
294 temp &= ~LVDS_ENABLE_DITHER;
295 }
296 temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY);
Ville Syrjälä4c6df4b2013-09-02 21:13:39 +0300297 if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
Daniel Vetterfc683092012-11-26 17:22:12 +0100298 temp |= LVDS_HSYNC_POLARITY;
Ville Syrjälä4c6df4b2013-09-02 21:13:39 +0300299 if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
Daniel Vetterfc683092012-11-26 17:22:12 +0100300 temp |= LVDS_VSYNC_POLARITY;
301
302 I915_WRITE(lvds_encoder->reg, temp);
303}
304
Jesse Barnes79e53942008-11-07 14:24:08 -0800305/**
Jesse Barnes79e53942008-11-07 14:24:08 -0800306 * Sets the power state for the panel.
307 */
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200308static void intel_enable_lvds(struct intel_encoder *encoder,
309 struct intel_crtc_state *pipe_config,
310 struct drm_connector_state *conn_state)
Jesse Barnes79e53942008-11-07 14:24:08 -0800311{
Daniel Vetterc22834e2012-06-30 15:31:28 +0200312 struct drm_device *dev = encoder->base.dev;
Jani Nikula29b99b42012-10-19 14:51:43 +0300313 struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
Chris Wilsonfac5e232016-07-04 11:34:36 +0100314 struct drm_i915_private *dev_priv = to_i915(dev);
Jesse Barnes79e53942008-11-07 14:24:08 -0800315
Daniel Vetter7dec0602012-09-11 14:12:25 +0200316 I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) | LVDS_PORT_EN);
Chris Wilsone9e331a2010-09-13 01:16:10 +0100317
Imre Deak5a162e22016-08-10 14:07:30 +0300318 I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) | PANEL_POWER_ON);
Daniel Vetter7dec0602012-09-11 14:12:25 +0200319 POSTING_READ(lvds_encoder->reg);
Imre Deak44cb7342016-08-10 14:07:29 +0300320 if (intel_wait_for_register(dev_priv, PP_STATUS(0), PP_ON, PP_ON, 1000))
Keith Packardde842ef2011-08-06 10:30:45 -0700321 DRM_ERROR("timed out waiting for panel to power on\n");
Chris Wilson2a1292f2010-12-05 19:21:18 +0000322
Maarten Lankhorstb037d582017-06-12 12:21:13 +0200323 intel_panel_enable_backlight(pipe_config, conn_state);
Chris Wilson2a1292f2010-12-05 19:21:18 +0000324}
325
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200326static void intel_disable_lvds(struct intel_encoder *encoder,
327 struct intel_crtc_state *old_crtc_state,
328 struct drm_connector_state *old_conn_state)
Chris Wilson2a1292f2010-12-05 19:21:18 +0000329{
Jani Nikula29b99b42012-10-19 14:51:43 +0300330 struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
Maarten Lankhorstd468e212016-08-09 17:04:11 +0200331 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
Chris Wilson2a1292f2010-12-05 19:21:18 +0000332
Imre Deak5a162e22016-08-10 14:07:30 +0300333 I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) & ~PANEL_POWER_ON);
Imre Deak44cb7342016-08-10 14:07:29 +0300334 if (intel_wait_for_register(dev_priv, PP_STATUS(0), PP_ON, 0, 1000))
Keith Packardde842ef2011-08-06 10:30:45 -0700335 DRM_ERROR("timed out waiting for panel to power off\n");
Chris Wilson2a1292f2010-12-05 19:21:18 +0000336
Daniel Vetter7dec0602012-09-11 14:12:25 +0200337 I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) & ~LVDS_PORT_EN);
338 POSTING_READ(lvds_encoder->reg);
Jesse Barnes79e53942008-11-07 14:24:08 -0800339}
340
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200341static void gmch_disable_lvds(struct intel_encoder *encoder,
342 struct intel_crtc_state *old_crtc_state,
343 struct drm_connector_state *old_conn_state)
344
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300345{
Maarten Lankhorstb037d582017-06-12 12:21:13 +0200346 intel_panel_disable_backlight(old_conn_state);
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300347
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200348 intel_disable_lvds(encoder, old_crtc_state, old_conn_state);
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300349}
350
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200351static void pch_disable_lvds(struct intel_encoder *encoder,
352 struct intel_crtc_state *old_crtc_state,
353 struct drm_connector_state *old_conn_state)
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300354{
Maarten Lankhorstb037d582017-06-12 12:21:13 +0200355 intel_panel_disable_backlight(old_conn_state);
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300356}
357
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200358static void pch_post_disable_lvds(struct intel_encoder *encoder,
359 struct intel_crtc_state *old_crtc_state,
360 struct drm_connector_state *old_conn_state)
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300361{
Maarten Lankhorstfd6bbda2016-08-09 17:04:04 +0200362 intel_disable_lvds(encoder, old_crtc_state, old_conn_state);
Ville Syrjäläd26a5b62015-07-02 17:42:46 +0300363}
364
Damien Lespiauc19de8e2013-11-28 15:29:18 +0000365static enum drm_mode_status
366intel_lvds_mode_valid(struct drm_connector *connector,
367 struct drm_display_mode *mode)
Jesse Barnes79e53942008-11-07 14:24:08 -0800368{
Jani Nikuladd06f902012-10-19 14:51:50 +0300369 struct intel_connector *intel_connector = to_intel_connector(connector);
370 struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
Mika Kahola7f7b58c2015-08-18 14:37:00 +0300371 int max_pixclk = to_i915(connector->dev)->max_dotclk_freq;
Jesse Barnes79e53942008-11-07 14:24:08 -0800372
Chris Wilson788319d2010-09-12 17:34:41 +0100373 if (mode->hdisplay > fixed_mode->hdisplay)
374 return MODE_PANEL;
375 if (mode->vdisplay > fixed_mode->vdisplay)
376 return MODE_PANEL;
Mika Kahola7f7b58c2015-08-18 14:37:00 +0300377 if (fixed_mode->clock > max_pixclk)
378 return MODE_CLOCK_HIGH;
Jesse Barnes79e53942008-11-07 14:24:08 -0800379
380 return MODE_OK;
381}
382
Daniel Vetter7ae89232013-03-27 00:44:52 +0100383static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder,
Maarten Lankhorst0a478c22016-08-09 17:04:05 +0200384 struct intel_crtc_state *pipe_config,
385 struct drm_connector_state *conn_state)
Jesse Barnes79e53942008-11-07 14:24:08 -0800386{
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100387 struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
Daniel Vetter7ae89232013-03-27 00:44:52 +0100388 struct intel_lvds_encoder *lvds_encoder =
389 to_lvds_encoder(&intel_encoder->base);
Jani Nikula4d891522012-10-26 12:03:59 +0300390 struct intel_connector *intel_connector =
391 &lvds_encoder->attached_connector->base;
Ander Conselvan de Oliveira2d112de2015-01-15 14:55:22 +0200392 struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
Ander Conselvan de Oliveirad21bd672015-03-20 16:18:14 +0200393 struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->base.crtc);
Daniel Vetter4e53c2e2013-03-27 00:44:58 +0100394 unsigned int lvds_bpp;
Jesse Barnes79e53942008-11-07 14:24:08 -0800395
396 /* Should never happen!! */
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100397 if (INTEL_GEN(dev_priv) < 4 && intel_crtc->pipe == 0) {
Keith Packard1ae8c0a2009-06-28 15:42:17 -0700398 DRM_ERROR("Can't support LVDS on pipe A\n");
Jesse Barnes79e53942008-11-07 14:24:08 -0800399 return false;
400 }
401
Paulo Zanoni1f835a72014-07-04 13:38:36 -0300402 if (lvds_encoder->a3_power == LVDS_A3_POWER_UP)
Daniel Vetter4e53c2e2013-03-27 00:44:58 +0100403 lvds_bpp = 8*3;
404 else
405 lvds_bpp = 6*3;
406
Daniel Vettere29c22c2013-02-21 00:00:16 +0100407 if (lvds_bpp != pipe_config->pipe_bpp && !pipe_config->bw_constrained) {
Daniel Vetter4e53c2e2013-03-27 00:44:58 +0100408 DRM_DEBUG_KMS("forcing display bpp (was %d) to LVDS (%d)\n",
409 pipe_config->pipe_bpp, lvds_bpp);
410 pipe_config->pipe_bpp = lvds_bpp;
411 }
Daniel Vetterd8b32242013-04-25 17:54:44 +0200412
Jesse Barnes79e53942008-11-07 14:24:08 -0800413 /*
Chris Wilson71677042010-07-17 13:38:43 +0100414 * We have timings from the BIOS for the panel, put them in
Jesse Barnes79e53942008-11-07 14:24:08 -0800415 * to the adjusted mode. The CRTC will be set up for this mode,
416 * with the panel scaling set up to source from the H/VDisplay
417 * of the original mode.
418 */
Jani Nikula4d891522012-10-26 12:03:59 +0300419 intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
Jani Nikuladd06f902012-10-19 14:51:50 +0300420 adjusted_mode);
Chris Wilson1d8e1c72010-08-07 11:01:28 +0100421
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100422 if (HAS_PCH_SPLIT(dev_priv)) {
Daniel Vetter5bfe2ac2013-03-27 00:44:55 +0100423 pipe_config->has_pch_encoder = true;
424
Jesse Barnesb074cec2013-04-25 12:55:02 -0700425 intel_pch_panel_fitting(intel_crtc, pipe_config,
Maarten Lankhorsteead06d2017-05-01 15:37:55 +0200426 conn_state->scaling_mode);
Jesse Barnes2dd24552013-04-25 12:55:01 -0700427 } else {
428 intel_gmch_panel_fitting(intel_crtc, pipe_config,
Maarten Lankhorsteead06d2017-05-01 15:37:55 +0200429 conn_state->scaling_mode);
Jesse Barnes79e53942008-11-07 14:24:08 -0800430
Daniel Vetter21d8a472013-07-12 08:07:30 +0200431 }
Daniel Vetterf9bef082012-04-15 19:53:19 +0200432
Zhao Yakuia3e17eb2009-10-10 10:42:37 +0800433 /*
Jesse Barnes79e53942008-11-07 14:24:08 -0800434 * XXX: It would be nice to support lower refresh rates on the
435 * panels to reduce power consumption, and perhaps match the
436 * user's requested refresh rate.
437 */
438
439 return true;
440}
441
Jesse Barnes79e53942008-11-07 14:24:08 -0800442/**
443 * Detect the LVDS connection.
444 *
Jesse Barnesb42d4c52009-09-10 15:28:04 -0700445 * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means
446 * connected and closed means disconnected. We also send hotplug events as
447 * needed, using lid status notification from the input layer.
Jesse Barnes79e53942008-11-07 14:24:08 -0800448 */
Chris Wilson7b334fc2010-09-09 23:51:02 +0100449static enum drm_connector_status
Chris Wilson930a9e22010-09-14 11:07:23 +0100450intel_lvds_detect(struct drm_connector *connector, bool force)
Jesse Barnes79e53942008-11-07 14:24:08 -0800451{
Mika Kahola1650be72016-12-13 10:02:47 +0200452 struct drm_i915_private *dev_priv = to_i915(connector->dev);
Chris Wilson6ee3b5a2011-03-24 13:26:43 +0000453 enum drm_connector_status status;
Jesse Barnesb42d4c52009-09-10 15:28:04 -0700454
Chris Wilson164c8592013-07-20 20:27:08 +0100455 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
Jani Nikulac23cc412014-06-03 14:56:17 +0300456 connector->base.id, connector->name);
Chris Wilson164c8592013-07-20 20:27:08 +0100457
Mika Kahola1650be72016-12-13 10:02:47 +0200458 status = intel_panel_detect(dev_priv);
Chris Wilsonfe16d942011-02-12 10:29:38 +0000459 if (status != connector_status_unknown)
460 return status;
Chris Wilson01fe9db2011-01-16 19:37:30 +0000461
Chris Wilson6ee3b5a2011-03-24 13:26:43 +0000462 return connector_status_connected;
Jesse Barnes79e53942008-11-07 14:24:08 -0800463}
464
465/**
466 * Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
467 */
468static int intel_lvds_get_modes(struct drm_connector *connector)
469{
Jani Nikula62165e02012-10-19 14:51:47 +0300470 struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
Jesse Barnes79e53942008-11-07 14:24:08 -0800471 struct drm_device *dev = connector->dev;
Chris Wilson788319d2010-09-12 17:34:41 +0100472 struct drm_display_mode *mode;
Jesse Barnes79e53942008-11-07 14:24:08 -0800473
Jani Nikula9cd300e2012-10-19 14:51:52 +0300474 /* use cached edid if we have one */
Chris Wilson2aa4f092012-11-21 16:14:04 +0000475 if (!IS_ERR_OR_NULL(lvds_connector->base.edid))
Jani Nikula9cd300e2012-10-19 14:51:52 +0300476 return drm_add_edid_modes(connector, lvds_connector->base.edid);
Jesse Barnes79e53942008-11-07 14:24:08 -0800477
Jani Nikuladd06f902012-10-19 14:51:50 +0300478 mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode);
Chris Wilson311bd682011-01-13 19:06:50 +0000479 if (mode == NULL)
Chris Wilson788319d2010-09-12 17:34:41 +0100480 return 0;
Jesse Barnes79e53942008-11-07 14:24:08 -0800481
Chris Wilson788319d2010-09-12 17:34:41 +0100482 drm_mode_probed_add(connector, mode);
483 return 1;
Jesse Barnes79e53942008-11-07 14:24:08 -0800484}
485
Thomas Bächler0544edf2010-07-02 10:44:23 +0200486static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id)
487{
Daniel Vetterbc0daf42012-04-01 13:16:49 +0200488 DRM_INFO("Skipping forced modeset for %s\n", id->ident);
Thomas Bächler0544edf2010-07-02 10:44:23 +0200489 return 1;
490}
491
492/* The GPU hangs up on these systems if modeset is performed on LID open */
493static const struct dmi_system_id intel_no_modeset_on_lid[] = {
494 {
495 .callback = intel_no_modeset_on_lid_dmi_callback,
496 .ident = "Toshiba Tecra A11",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"),
500 },
501 },
502
503 { } /* terminating entry */
504};
505
Linus Torvaldsc9354c82009-11-02 09:29:55 -0800506/*
Zhang Ruib8efb172013-02-05 15:41:53 +0800507 * Lid events. Note the use of 'modeset':
508 * - we set it to MODESET_ON_LID_OPEN on lid close,
509 * and set it to MODESET_DONE on open
Linus Torvaldsc9354c82009-11-02 09:29:55 -0800510 * - we use it as a "only once" bit (ie we ignore
Zhang Ruib8efb172013-02-05 15:41:53 +0800511 * duplicate events where it was already properly set)
512 * - the suspend/resume paths will set it to
513 * MODESET_SUSPENDED and ignore the lid open event,
514 * because they restore the mode ("lid open").
Linus Torvaldsc9354c82009-11-02 09:29:55 -0800515 */
Jesse Barnesc1c7af62009-09-10 15:28:03 -0700516static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
517 void *unused)
518{
Jani Nikuladb1740a2012-10-19 14:51:45 +0300519 struct intel_lvds_connector *lvds_connector =
520 container_of(nb, struct intel_lvds_connector, lid_notifier);
521 struct drm_connector *connector = &lvds_connector->base.base;
522 struct drm_device *dev = connector->dev;
Chris Wilsonfac5e232016-07-04 11:34:36 +0100523 struct drm_i915_private *dev_priv = to_i915(dev);
Jesse Barnesc1c7af62009-09-10 15:28:03 -0700524
Alex Williamson2fb4e612011-04-21 16:08:14 -0600525 if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
526 return NOTIFY_OK;
527
Zhang Ruib8efb172013-02-05 15:41:53 +0800528 mutex_lock(&dev_priv->modeset_restore_lock);
529 if (dev_priv->modeset_restore == MODESET_SUSPENDED)
530 goto exit;
Zhao Yakuia2565372009-12-11 09:26:11 +0800531 /*
532 * check and update the status of LVDS connector after receiving
533 * the LID nofication event.
534 */
Jani Nikuladb1740a2012-10-19 14:51:45 +0300535 connector->status = connector->funcs->detect(connector, false);
Chris Wilson7b334fc2010-09-09 23:51:02 +0100536
Thomas Bächler0544edf2010-07-02 10:44:23 +0200537 /* Don't force modeset on machines where it causes a GPU lockup */
538 if (dmi_check_system(intel_no_modeset_on_lid))
Zhang Ruib8efb172013-02-05 15:41:53 +0800539 goto exit;
Linus Torvaldsc9354c82009-11-02 09:29:55 -0800540 if (!acpi_lid_open()) {
Zhang Ruib8efb172013-02-05 15:41:53 +0800541 /* do modeset on next lid open event */
542 dev_priv->modeset_restore = MODESET_ON_LID_OPEN;
543 goto exit;
Jesse Barnes06891e22009-09-14 10:58:48 -0700544 }
Jesse Barnesc1c7af62009-09-10 15:28:03 -0700545
Zhang Ruib8efb172013-02-05 15:41:53 +0800546 if (dev_priv->modeset_restore == MODESET_DONE)
547 goto exit;
Linus Torvaldsc9354c82009-11-02 09:29:55 -0800548
Daniel Vetter5be19d92013-10-09 10:47:12 +0200549 /*
550 * Some old platform's BIOS love to wreak havoc while the lid is closed.
551 * We try to detect this here and undo any damage. The split for PCH
552 * platforms is rather conservative and a bit arbitrary expect that on
553 * those platforms VGA disabling requires actual legacy VGA I/O access,
554 * and as part of the cleanup in the hw state restore we also redisable
555 * the vga plane.
556 */
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100557 if (!HAS_PCH_SPLIT(dev_priv))
Maarten Lankhorst043e9bd2015-07-13 16:30:25 +0200558 intel_display_resume(dev);
Jesse Barnes06324192009-09-10 15:28:05 -0700559
Zhang Ruib8efb172013-02-05 15:41:53 +0800560 dev_priv->modeset_restore = MODESET_DONE;
561
562exit:
563 mutex_unlock(&dev_priv->modeset_restore_lock);
Jesse Barnesc1c7af62009-09-10 15:28:03 -0700564 return NOTIFY_OK;
565}
566
Jesse Barnes79e53942008-11-07 14:24:08 -0800567/**
568 * intel_lvds_destroy - unregister and free LVDS structures
569 * @connector: connector to free
570 *
571 * Unregister the DDC bus for this connector then free the driver private
572 * structure.
573 */
574static void intel_lvds_destroy(struct drm_connector *connector)
575{
Jani Nikuladb1740a2012-10-19 14:51:45 +0300576 struct intel_lvds_connector *lvds_connector =
577 to_lvds_connector(connector);
Jesse Barnes79e53942008-11-07 14:24:08 -0800578
Jani Nikuladb1740a2012-10-19 14:51:45 +0300579 if (lvds_connector->lid_notifier.notifier_call)
580 acpi_lid_notifier_unregister(&lvds_connector->lid_notifier);
Matthew Garrettaaa6fd22011-08-12 12:11:33 +0200581
Jani Nikula9cd300e2012-10-19 14:51:52 +0300582 if (!IS_ERR_OR_NULL(lvds_connector->base.edid))
583 kfree(lvds_connector->base.edid);
584
Jani Nikula1d508702012-10-19 14:51:49 +0300585 intel_panel_fini(&lvds_connector->base.panel);
Jani Nikuladb1740a2012-10-19 14:51:45 +0300586
Jesse Barnes79e53942008-11-07 14:24:08 -0800587 drm_connector_cleanup(connector);
588 kfree(connector);
589}
590
Jesse Barnes79e53942008-11-07 14:24:08 -0800591static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = {
592 .get_modes = intel_lvds_get_modes,
593 .mode_valid = intel_lvds_mode_valid,
Maarten Lankhorstca937582017-05-01 15:37:59 +0200594 .atomic_check = intel_digital_connector_atomic_check,
Jesse Barnes79e53942008-11-07 14:24:08 -0800595};
596
597static const struct drm_connector_funcs intel_lvds_connector_funcs = {
Jesse Barnes79e53942008-11-07 14:24:08 -0800598 .detect = intel_lvds_detect,
599 .fill_modes = drm_helper_probe_single_connector_modes,
Maarten Lankhorstca937582017-05-01 15:37:59 +0200600 .atomic_get_property = intel_digital_connector_atomic_get_property,
601 .atomic_set_property = intel_digital_connector_atomic_set_property,
Chris Wilson1ebaa0b2016-06-24 14:00:15 +0100602 .late_register = intel_connector_register,
Chris Wilsonc191eca2016-06-17 11:40:33 +0100603 .early_unregister = intel_connector_unregister,
Jesse Barnes79e53942008-11-07 14:24:08 -0800604 .destroy = intel_lvds_destroy,
Matt Roperc6f95f22015-01-22 16:50:32 -0800605 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
Maarten Lankhorstca937582017-05-01 15:37:59 +0200606 .atomic_duplicate_state = intel_digital_connector_duplicate_state,
Jesse Barnes79e53942008-11-07 14:24:08 -0800607};
608
Jesse Barnes79e53942008-11-07 14:24:08 -0800609static const struct drm_encoder_funcs intel_lvds_enc_funcs = {
Chris Wilsonea5b2132010-08-04 13:50:23 +0100610 .destroy = intel_encoder_destroy,
Jesse Barnes79e53942008-11-07 14:24:08 -0800611};
612
Mathias Krausebbe1c272014-08-27 18:41:19 +0200613static int intel_no_lvds_dmi_callback(const struct dmi_system_id *id)
Jarod Wilson425d2442009-05-05 10:00:25 -0400614{
Daniel Vetterbc0daf42012-04-01 13:16:49 +0200615 DRM_INFO("Skipping LVDS initialization for %s\n", id->ident);
Jarod Wilson425d2442009-05-05 10:00:25 -0400616 return 1;
617}
Jesse Barnes79e53942008-11-07 14:24:08 -0800618
Jarod Wilson425d2442009-05-05 10:00:25 -0400619/* These systems claim to have LVDS, but really don't */
Jaswinder Singh Rajput93c05f22009-06-04 09:41:19 +1000620static const struct dmi_system_id intel_no_lvds[] = {
Jarod Wilson425d2442009-05-05 10:00:25 -0400621 {
622 .callback = intel_no_lvds_dmi_callback,
623 .ident = "Apple Mac Mini (Core series)",
624 .matches = {
Keith Packard98acd462009-06-14 12:31:58 -0700625 DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
Jarod Wilson425d2442009-05-05 10:00:25 -0400626 DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
627 },
628 },
629 {
630 .callback = intel_no_lvds_dmi_callback,
631 .ident = "Apple Mac Mini (Core 2 series)",
632 .matches = {
Keith Packard98acd462009-06-14 12:31:58 -0700633 DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
Jarod Wilson425d2442009-05-05 10:00:25 -0400634 DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"),
635 },
636 },
637 {
638 .callback = intel_no_lvds_dmi_callback,
639 .ident = "MSI IM-945GSE-A",
640 .matches = {
641 DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
642 DMI_MATCH(DMI_PRODUCT_NAME, "A9830IMS"),
643 },
644 },
645 {
646 .callback = intel_no_lvds_dmi_callback,
647 .ident = "Dell Studio Hybrid",
648 .matches = {
649 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
650 DMI_MATCH(DMI_PRODUCT_NAME, "Studio Hybrid 140g"),
651 },
652 },
Jarod Wilson70aa96c2009-05-27 17:20:39 -0400653 {
654 .callback = intel_no_lvds_dmi_callback,
Pieterjan Camerlynckb0662542011-07-26 16:23:54 +0200655 .ident = "Dell OptiPlex FX170",
656 .matches = {
657 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
658 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex FX170"),
659 },
660 },
661 {
662 .callback = intel_no_lvds_dmi_callback,
Jarod Wilson70aa96c2009-05-27 17:20:39 -0400663 .ident = "AOpen Mini PC",
664 .matches = {
665 DMI_MATCH(DMI_SYS_VENDOR, "AOpen"),
666 DMI_MATCH(DMI_PRODUCT_NAME, "i965GMx-IF"),
667 },
668 },
Michael Cousinfa0864b2009-06-05 21:16:22 +0200669 {
670 .callback = intel_no_lvds_dmi_callback,
Tormod Voldened8c7542009-07-13 22:26:48 +0200671 .ident = "AOpen Mini PC MP915",
672 .matches = {
673 DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
674 DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"),
675 },
676 },
677 {
678 .callback = intel_no_lvds_dmi_callback,
Knut Petersen22ab70d2011-01-14 15:38:10 +0000679 .ident = "AOpen i915GMm-HFS",
680 .matches = {
681 DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
682 DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
683 },
684 },
685 {
686 .callback = intel_no_lvds_dmi_callback,
Daniel Vettere57b6882012-02-08 16:42:52 +0100687 .ident = "AOpen i45GMx-I",
688 .matches = {
689 DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
690 DMI_MATCH(DMI_BOARD_NAME, "i45GMx-I"),
691 },
692 },
693 {
694 .callback = intel_no_lvds_dmi_callback,
Michael Cousinfa0864b2009-06-05 21:16:22 +0200695 .ident = "Aopen i945GTt-VFA",
696 .matches = {
697 DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
698 },
699 },
Stefan Bader9875557ee82010-03-29 17:53:12 +0200700 {
701 .callback = intel_no_lvds_dmi_callback,
702 .ident = "Clientron U800",
703 .matches = {
704 DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
705 DMI_MATCH(DMI_PRODUCT_NAME, "U800"),
706 },
707 },
Hans de Goede6a574b52011-06-04 15:39:21 +0200708 {
Joel Sass44306ab2012-01-10 13:03:55 -0500709 .callback = intel_no_lvds_dmi_callback,
710 .ident = "Clientron E830",
711 .matches = {
712 DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
713 DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
714 },
715 },
716 {
Hans de Goede6a574b52011-06-04 15:39:21 +0200717 .callback = intel_no_lvds_dmi_callback,
718 .ident = "Asus EeeBox PC EB1007",
719 .matches = {
720 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
721 DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"),
722 },
723 },
Adam Jackson0999bbe2011-11-28 12:22:56 -0500724 {
725 .callback = intel_no_lvds_dmi_callback,
726 .ident = "Asus AT5NM10T-I",
727 .matches = {
728 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
729 DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"),
730 },
731 },
Marc Gariepyf5b8a7e2012-02-09 09:35:21 -0500732 {
733 .callback = intel_no_lvds_dmi_callback,
Ben Mesman45a211d2013-04-16 20:00:28 +0200734 .ident = "Hewlett-Packard HP t5740",
Jan-Benedict Glaw33471112012-05-22 15:21:53 +0200735 .matches = {
736 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
Ben Mesman45a211d2013-04-16 20:00:28 +0200737 DMI_MATCH(DMI_PRODUCT_NAME, " t5740"),
Jan-Benedict Glaw33471112012-05-22 15:21:53 +0200738 },
739 },
740 {
741 .callback = intel_no_lvds_dmi_callback,
Marc Gariepyf5b8a7e2012-02-09 09:35:21 -0500742 .ident = "Hewlett-Packard t5745",
743 .matches = {
744 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
Marc Gariepy62004972012-05-01 13:37:57 -0400745 DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"),
Marc Gariepyf5b8a7e2012-02-09 09:35:21 -0500746 },
747 },
748 {
749 .callback = intel_no_lvds_dmi_callback,
750 .ident = "Hewlett-Packard st5747",
751 .matches = {
752 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
Marc Gariepy62004972012-05-01 13:37:57 -0400753 DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"),
Marc Gariepyf5b8a7e2012-02-09 09:35:21 -0500754 },
755 },
Anisse Astier97effad2012-03-07 18:36:35 +0100756 {
757 .callback = intel_no_lvds_dmi_callback,
758 .ident = "MSI Wind Box DC500",
759 .matches = {
760 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
761 DMI_MATCH(DMI_BOARD_NAME, "MS-7469"),
762 },
763 },
Sjoerd Simons9756fe32012-06-22 09:43:07 +0200764 {
765 .callback = intel_no_lvds_dmi_callback,
Calvin Waltona51d4ed2012-08-24 07:56:31 -0400766 .ident = "Gigabyte GA-D525TUD",
767 .matches = {
768 DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
769 DMI_MATCH(DMI_BOARD_NAME, "D525TUD"),
770 },
771 },
Chris Wilsonc31407a2012-10-18 21:07:01 +0100772 {
773 .callback = intel_no_lvds_dmi_callback,
774 .ident = "Supermicro X7SPA-H",
775 .matches = {
776 DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
777 DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"),
778 },
779 },
Christian Lamparter9e9dd0e2013-04-03 14:34:11 +0200780 {
781 .callback = intel_no_lvds_dmi_callback,
782 .ident = "Fujitsu Esprimo Q900",
783 .matches = {
784 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
785 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"),
786 },
787 },
Chris Wilsone5614f02013-07-03 15:05:03 -0700788 {
789 .callback = intel_no_lvds_dmi_callback,
Rob Pearce645378d2013-10-27 16:13:42 +0000790 .ident = "Intel D410PT",
791 .matches = {
792 DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
793 DMI_MATCH(DMI_BOARD_NAME, "D410PT"),
794 },
795 },
796 {
797 .callback = intel_no_lvds_dmi_callback,
798 .ident = "Intel D425KT",
799 .matches = {
800 DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
801 DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"),
802 },
803 },
804 {
805 .callback = intel_no_lvds_dmi_callback,
Chris Wilsone5614f02013-07-03 15:05:03 -0700806 .ident = "Intel D510MO",
807 .matches = {
808 DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
809 DMI_EXACT_MATCH(DMI_BOARD_NAME, "D510MO"),
810 },
811 },
Jani Nikuladcf6d292013-07-03 15:05:05 -0700812 {
813 .callback = intel_no_lvds_dmi_callback,
814 .ident = "Intel D525MW",
815 .matches = {
816 DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
817 DMI_EXACT_MATCH(DMI_BOARD_NAME, "D525MW"),
818 },
819 },
Jarod Wilson425d2442009-05-05 10:00:25 -0400820
821 { } /* terminating entry */
822};
Jesse Barnes79e53942008-11-07 14:24:08 -0800823
Daniel Vetter1974cad2012-11-26 17:22:09 +0100824static int intel_dual_link_lvds_callback(const struct dmi_system_id *id)
825{
826 DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident);
827 return 1;
828}
829
830static const struct dmi_system_id intel_dual_link_lvds[] = {
831 {
832 .callback = intel_dual_link_lvds_callback,
Lukas Wunner3916e3f2015-05-04 15:06:49 +0200833 .ident = "Apple MacBook Pro 15\" (2010)",
834 .matches = {
835 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
836 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro6,2"),
837 },
838 },
839 {
840 .callback = intel_dual_link_lvds_callback,
841 .ident = "Apple MacBook Pro 15\" (2011)",
Daniel Vetter1974cad2012-11-26 17:22:09 +0100842 .matches = {
843 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
844 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"),
845 },
846 },
Lukas Wunner3916e3f2015-05-04 15:06:49 +0200847 {
848 .callback = intel_dual_link_lvds_callback,
849 .ident = "Apple MacBook Pro 15\" (2012)",
850 .matches = {
851 DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
852 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,1"),
853 },
854 },
Daniel Vetter1974cad2012-11-26 17:22:09 +0100855 { } /* terminating entry */
856};
857
Imre Deak97a824e12016-06-21 11:51:47 +0300858struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev)
859{
860 struct intel_encoder *intel_encoder;
861
862 for_each_intel_encoder(dev, intel_encoder)
863 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
864 return intel_encoder;
865
866 return NULL;
867}
868
Daniel Vetter1974cad2012-11-26 17:22:09 +0100869bool intel_is_dual_link_lvds(struct drm_device *dev)
870{
Imre Deak97a824e12016-06-21 11:51:47 +0300871 struct intel_encoder *encoder = intel_get_lvds_encoder(dev);
Daniel Vetter13c7d872012-11-26 17:22:10 +0100872
Imre Deak97a824e12016-06-21 11:51:47 +0300873 return encoder && to_lvds_encoder(&encoder->base)->is_dual_link;
Daniel Vetter13c7d872012-11-26 17:22:10 +0100874}
875
Daniel Vetter7dec0602012-09-11 14:12:25 +0200876static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder)
Daniel Vetter13c7d872012-11-26 17:22:10 +0100877{
Daniel Vetter7dec0602012-09-11 14:12:25 +0200878 struct drm_device *dev = lvds_encoder->base.base.dev;
Daniel Vetter1974cad2012-11-26 17:22:09 +0100879 unsigned int val;
Chris Wilsonfac5e232016-07-04 11:34:36 +0100880 struct drm_i915_private *dev_priv = to_i915(dev);
Daniel Vetter1974cad2012-11-26 17:22:09 +0100881
882 /* use the module option value if specified */
Jani Nikulad330a952014-01-21 11:24:25 +0200883 if (i915.lvds_channel_mode > 0)
884 return i915.lvds_channel_mode == 2;
Daniel Vetter1974cad2012-11-26 17:22:09 +0100885
Lukas Wunner6f317cf2015-04-12 21:10:35 +0200886 /* single channel LVDS is limited to 112 MHz */
887 if (lvds_encoder->attached_connector->base.panel.fixed_mode->clock
888 > 112999)
889 return true;
890
Daniel Vetter1974cad2012-11-26 17:22:09 +0100891 if (dmi_check_system(intel_dual_link_lvds))
892 return true;
893
Daniel Vetter13c7d872012-11-26 17:22:10 +0100894 /* BIOS should set the proper LVDS register value at boot, but
895 * in reality, it doesn't set the value when the lid is closed;
896 * we need to check "the value to be set" in VBT when LVDS
897 * register is uninitialized.
898 */
Daniel Vetter7dec0602012-09-11 14:12:25 +0200899 val = I915_READ(lvds_encoder->reg);
Daniel Vetter13c7d872012-11-26 17:22:10 +0100900 if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED)))
Rodrigo Vivi41aa3442013-05-09 20:03:18 -0300901 val = dev_priv->vbt.bios_lvds_val;
Daniel Vetter13c7d872012-11-26 17:22:10 +0100902
Daniel Vetter1974cad2012-11-26 17:22:09 +0100903 return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP;
904}
905
Tvrtko Ursulin50a0bc92016-10-13 11:02:58 +0100906static bool intel_lvds_supported(struct drm_i915_private *dev_priv)
Chris Wilsonf3cfcba2012-02-09 09:35:53 +0000907{
908 /* With the introduction of the PCH we gained a dedicated
909 * LVDS presence pin, use it. */
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100910 if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv))
Chris Wilsonf3cfcba2012-02-09 09:35:53 +0000911 return true;
912
913 /* Otherwise LVDS was only attached to mobile products,
914 * except for the inglorious 830gm */
Tvrtko Ursulin50a0bc92016-10-13 11:02:58 +0100915 if (INTEL_GEN(dev_priv) <= 4 &&
916 IS_MOBILE(dev_priv) && !IS_I830(dev_priv))
Paulo Zanoni311e3592013-03-06 20:03:19 -0300917 return true;
918
919 return false;
Chris Wilsonf3cfcba2012-02-09 09:35:53 +0000920}
921
Zhao Yakui18f9ed12009-11-20 03:24:16 +0000922/**
Jesse Barnes79e53942008-11-07 14:24:08 -0800923 * intel_lvds_init - setup LVDS connectors on this device
924 * @dev: drm device
925 *
926 * Create the connector, register the LVDS DDC bus, and try to figure out what
927 * modes we can display on the LVDS panel (if present).
928 */
Ander Conselvan de Oliveirac39055b2016-11-23 16:21:44 +0200929void intel_lvds_init(struct drm_i915_private *dev_priv)
Jesse Barnes79e53942008-11-07 14:24:08 -0800930{
Ander Conselvan de Oliveirac39055b2016-11-23 16:21:44 +0200931 struct drm_device *dev = &dev_priv->drm;
Jani Nikula29b99b42012-10-19 14:51:43 +0300932 struct intel_lvds_encoder *lvds_encoder;
Eric Anholt21d40d32010-03-25 11:11:14 -0700933 struct intel_encoder *intel_encoder;
Jani Nikulac7362c42012-10-19 14:51:44 +0300934 struct intel_lvds_connector *lvds_connector;
Zhenyu Wangbb8a3562010-03-29 16:40:50 +0800935 struct intel_connector *intel_connector;
Jesse Barnes79e53942008-11-07 14:24:08 -0800936 struct drm_connector *connector;
937 struct drm_encoder *encoder;
938 struct drm_display_mode *scan; /* *modes, *bios_mode; */
Jani Nikuladd06f902012-10-19 14:51:50 +0300939 struct drm_display_mode *fixed_mode = NULL;
Vandana Kannan4b6ed682014-02-11 14:26:36 +0530940 struct drm_display_mode *downclock_mode = NULL;
Jani Nikula9cd300e2012-10-19 14:51:52 +0300941 struct edid *edid;
Ville Syrjäläe2af48c2016-10-31 22:37:05 +0200942 struct intel_crtc *crtc;
Ville Syrjäläf0f59a02015-11-18 15:33:26 +0200943 i915_reg_t lvds_reg;
Jesse Barnes79e53942008-11-07 14:24:08 -0800944 u32 lvds;
Chris Wilson270eea02010-09-24 01:15:02 +0100945 int pipe;
946 u8 pin;
Maarten Lankhorst8b453302017-05-01 15:37:56 +0200947 u32 allowed_scalers;
Jesse Barnes79e53942008-11-07 14:24:08 -0800948
Tvrtko Ursulin50a0bc92016-10-13 11:02:58 +0100949 if (!intel_lvds_supported(dev_priv))
Daniel Vetterc9093352013-06-06 22:22:47 +0200950 return;
Chris Wilsonf3cfcba2012-02-09 09:35:53 +0000951
Jarod Wilson425d2442009-05-05 10:00:25 -0400952 /* Skip init on machines we know falsely report LVDS */
953 if (dmi_check_system(intel_no_lvds))
Daniel Vetterc9093352013-06-06 22:22:47 +0200954 return;
Paul Collins565dcd42009-02-04 23:05:41 +1300955
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100956 if (HAS_PCH_SPLIT(dev_priv))
Ville Syrjäläd0669d02015-09-18 20:03:45 +0300957 lvds_reg = PCH_LVDS;
958 else
959 lvds_reg = LVDS;
960
961 lvds = I915_READ(lvds_reg);
962
Tvrtko Ursulin6e266952016-10-13 11:02:53 +0100963 if (HAS_PCH_SPLIT(dev_priv)) {
Ville Syrjäläd0669d02015-09-18 20:03:45 +0300964 if ((lvds & LVDS_DETECTED) == 0)
Daniel Vetterc9093352013-06-06 22:22:47 +0200965 return;
Jani Nikula6aa23e62016-03-24 17:50:20 +0200966 if (dev_priv->vbt.edp.support) {
Zhao Yakui28c97732009-10-09 11:39:41 +0800967 DRM_DEBUG_KMS("disable LVDS for eDP support\n");
Daniel Vetterc9093352013-06-06 22:22:47 +0200968 return;
Zhenyu Wang32f9d652009-07-24 01:00:32 +0800969 }
Zhenyu Wang541998a2009-06-05 15:38:44 +0800970 }
971
Chris Wilsoneebaed62015-06-19 13:57:43 +0100972 pin = GMBUS_PIN_PANEL;
Jani Nikula5a69d132016-03-16 12:43:30 +0200973 if (!intel_bios_is_lvds_present(dev_priv, &pin)) {
Ville Syrjäläd0669d02015-09-18 20:03:45 +0300974 if ((lvds & LVDS_PORT_EN) == 0) {
Chris Wilsoneebaed62015-06-19 13:57:43 +0100975 DRM_DEBUG_KMS("LVDS is not present in VBT\n");
976 return;
977 }
978 DRM_DEBUG_KMS("LVDS is not present in VBT, but enabled anyway\n");
979 }
980
Daniel Vetterb14c5672013-09-19 12:18:32 +0200981 lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL);
Jani Nikula29b99b42012-10-19 14:51:43 +0300982 if (!lvds_encoder)
Daniel Vetterc9093352013-06-06 22:22:47 +0200983 return;
Jesse Barnes79e53942008-11-07 14:24:08 -0800984
Daniel Vetterb14c5672013-09-19 12:18:32 +0200985 lvds_connector = kzalloc(sizeof(*lvds_connector), GFP_KERNEL);
Jani Nikulac7362c42012-10-19 14:51:44 +0300986 if (!lvds_connector) {
Jani Nikula29b99b42012-10-19 14:51:43 +0300987 kfree(lvds_encoder);
Daniel Vetterc9093352013-06-06 22:22:47 +0200988 return;
Jesse Barnes79e53942008-11-07 14:24:08 -0800989 }
990
Ander Conselvan de Oliveira9bdbd0b2015-04-10 10:59:10 +0300991 if (intel_connector_init(&lvds_connector->base) < 0) {
992 kfree(lvds_connector);
993 kfree(lvds_encoder);
994 return;
995 }
996
Jani Nikula62165e02012-10-19 14:51:47 +0300997 lvds_encoder->attached_connector = lvds_connector;
Zhenyu Wangbb8a3562010-03-29 16:40:50 +0800998
Jani Nikula29b99b42012-10-19 14:51:43 +0300999 intel_encoder = &lvds_encoder->base;
Chris Wilson4ef69c72010-09-09 15:14:28 +01001000 encoder = &intel_encoder->base;
Jani Nikulac7362c42012-10-19 14:51:44 +03001001 intel_connector = &lvds_connector->base;
Chris Wilsonea5b2132010-08-04 13:50:23 +01001002 connector = &intel_connector->base;
Zhenyu Wangbb8a3562010-03-29 16:40:50 +08001003 drm_connector_init(dev, &intel_connector->base, &intel_lvds_connector_funcs,
Jesse Barnes79e53942008-11-07 14:24:08 -08001004 DRM_MODE_CONNECTOR_LVDS);
1005
Chris Wilson4ef69c72010-09-09 15:14:28 +01001006 drm_encoder_init(dev, &intel_encoder->base, &intel_lvds_enc_funcs,
Ville Syrjälä580d8ed2016-05-27 20:59:24 +03001007 DRM_MODE_ENCODER_LVDS, "LVDS");
Jesse Barnes79e53942008-11-07 14:24:08 -08001008
Daniel Vetterc22834e2012-06-30 15:31:28 +02001009 intel_encoder->enable = intel_enable_lvds;
Daniel Vetterf6736a12013-06-05 13:34:30 +02001010 intel_encoder->pre_enable = intel_pre_enable_lvds;
Daniel Vetter7ae89232013-03-27 00:44:52 +01001011 intel_encoder->compute_config = intel_lvds_compute_config;
Ville Syrjäläd26a5b62015-07-02 17:42:46 +03001012 if (HAS_PCH_SPLIT(dev_priv)) {
1013 intel_encoder->disable = pch_disable_lvds;
1014 intel_encoder->post_disable = pch_post_disable_lvds;
1015 } else {
1016 intel_encoder->disable = gmch_disable_lvds;
1017 }
Daniel Vetterb1dc3322012-07-02 21:09:00 +02001018 intel_encoder->get_hw_state = intel_lvds_get_hw_state;
Jesse Barnes045ac3b2013-05-14 17:08:26 -07001019 intel_encoder->get_config = intel_lvds_get_config;
Daniel Vetterb1dc3322012-07-02 21:09:00 +02001020 intel_connector->get_hw_state = intel_connector_get_hw_state;
Daniel Vetterc22834e2012-06-30 15:31:28 +02001021
Chris Wilsondf0e9242010-09-09 16:20:55 +01001022 intel_connector_attach_encoder(intel_connector, intel_encoder);
Jesse Barnes79e53942008-11-07 14:24:08 -08001023
Pandiyan, Dhinakaran03cdc1d2016-09-19 18:24:38 -07001024 intel_encoder->type = INTEL_OUTPUT_LVDS;
Ander Conselvan de Oliveira79f255a2017-02-22 08:34:27 +02001025 intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
Pandiyan, Dhinakaran03cdc1d2016-09-19 18:24:38 -07001026 intel_encoder->port = PORT_NONE;
Ville Syrjäläbc079e82014-03-03 16:15:28 +02001027 intel_encoder->cloneable = 0;
Tvrtko Ursulin6e266952016-10-13 11:02:53 +01001028 if (HAS_PCH_SPLIT(dev_priv))
Jesse Barnes27f82272011-09-02 12:54:37 -07001029 intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
Tvrtko Ursulin5db94012016-10-13 11:03:10 +01001030 else if (IS_GEN4(dev_priv))
Daniel Vetter0b9f43a2012-06-05 10:07:11 +02001031 intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
Jesse Barnes27f82272011-09-02 12:54:37 -07001032 else
1033 intel_encoder->crtc_mask = (1 << 1);
1034
Jesse Barnes79e53942008-11-07 14:24:08 -08001035 drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
1036 connector->display_info.subpixel_order = SubPixelHorizontalRGB;
1037 connector->interlace_allowed = false;
1038 connector->doublescan_allowed = false;
1039
Ville Syrjäläd0669d02015-09-18 20:03:45 +03001040 lvds_encoder->reg = lvds_reg;
Daniel Vetter7dec0602012-09-11 14:12:25 +02001041
Zhao Yakui3fbe18d2009-06-22 15:31:25 +08001042 /* create the scaling mode property */
Maarten Lankhorst8b453302017-05-01 15:37:56 +02001043 allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT);
1044 allowed_scalers |= BIT(DRM_MODE_SCALE_FULLSCREEN);
1045 allowed_scalers |= BIT(DRM_MODE_SCALE_CENTER);
1046 drm_connector_attach_scaling_mode_property(connector, allowed_scalers);
Maarten Lankhorsteead06d2017-05-01 15:37:55 +02001047 connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;
Imre Deaked6143b82016-08-10 14:07:31 +03001048
1049 intel_lvds_pps_get_hw_state(dev_priv, &lvds_encoder->init_pps);
1050 lvds_encoder->init_lvds_val = lvds;
1051
Jesse Barnes79e53942008-11-07 14:24:08 -08001052 /*
1053 * LVDS discovery:
1054 * 1) check for EDID on DDC
1055 * 2) check for VBT data
1056 * 3) check to see if LVDS is already on
1057 * if none of the above, no panel
1058 * 4) make sure lid is open
1059 * if closed, act like it's not there for now
1060 */
1061
Jesse Barnes79e53942008-11-07 14:24:08 -08001062 /*
1063 * Attempt to get the fixed panel mode from DDC. Assume that the
1064 * preferred mode is the right one.
1065 */
Daniel Vetter4da98542014-03-21 23:22:35 +01001066 mutex_lock(&dev->mode_config.mutex);
Lukas Wunner4eddaee2016-01-11 20:09:20 +01001067 if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC)
1068 edid = drm_get_edid_switcheroo(connector,
1069 intel_gmbus_get_adapter(dev_priv, pin));
1070 else
1071 edid = drm_get_edid(connector,
1072 intel_gmbus_get_adapter(dev_priv, pin));
Jani Nikula9cd300e2012-10-19 14:51:52 +03001073 if (edid) {
1074 if (drm_add_edid_modes(connector, edid)) {
Chris Wilson3f8ff0e2010-11-08 23:20:52 +00001075 drm_mode_connector_update_edid_property(connector,
Jani Nikula9cd300e2012-10-19 14:51:52 +03001076 edid);
Chris Wilson3f8ff0e2010-11-08 23:20:52 +00001077 } else {
Jani Nikula9cd300e2012-10-19 14:51:52 +03001078 kfree(edid);
1079 edid = ERR_PTR(-EINVAL);
Chris Wilson3f8ff0e2010-11-08 23:20:52 +00001080 }
Jani Nikula9cd300e2012-10-19 14:51:52 +03001081 } else {
1082 edid = ERR_PTR(-ENOENT);
Chris Wilson3f8ff0e2010-11-08 23:20:52 +00001083 }
Jani Nikula9cd300e2012-10-19 14:51:52 +03001084 lvds_connector->base.edid = edid;
1085
Jesse Barnes79e53942008-11-07 14:24:08 -08001086 list_for_each_entry(scan, &connector->probed_modes, head) {
Jesse Barnes79e53942008-11-07 14:24:08 -08001087 if (scan->type & DRM_MODE_TYPE_PREFERRED) {
Chris Wilson6a9d51b2012-11-21 16:14:03 +00001088 DRM_DEBUG_KMS("using preferred mode from EDID: ");
1089 drm_mode_debug_printmodeline(scan);
1090
Jani Nikuladd06f902012-10-19 14:51:50 +03001091 fixed_mode = drm_mode_duplicate(dev, scan);
Daniel Vetterc329a4e2015-06-18 10:30:23 +02001092 if (fixed_mode)
Chris Wilson6a9d51b2012-11-21 16:14:03 +00001093 goto out;
Jesse Barnes79e53942008-11-07 14:24:08 -08001094 }
Jesse Barnes79e53942008-11-07 14:24:08 -08001095 }
1096
1097 /* Failed to get EDID, what about VBT? */
Rodrigo Vivi41aa3442013-05-09 20:03:18 -03001098 if (dev_priv->vbt.lfp_lvds_vbt_mode) {
Chris Wilson6a9d51b2012-11-21 16:14:03 +00001099 DRM_DEBUG_KMS("using mode from VBT: ");
Rodrigo Vivi41aa3442013-05-09 20:03:18 -03001100 drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode);
Chris Wilson6a9d51b2012-11-21 16:14:03 +00001101
Rodrigo Vivi41aa3442013-05-09 20:03:18 -03001102 fixed_mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode);
Jani Nikuladd06f902012-10-19 14:51:50 +03001103 if (fixed_mode) {
1104 fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
Ville Syrjälädf457242016-05-31 12:08:34 +03001105 connector->display_info.width_mm = fixed_mode->width_mm;
1106 connector->display_info.height_mm = fixed_mode->height_mm;
Jesse Barnese285f3c2009-01-14 10:53:36 -08001107 goto out;
1108 }
Jesse Barnes79e53942008-11-07 14:24:08 -08001109 }
1110
1111 /*
1112 * If we didn't get EDID, try checking if the panel is already turned
1113 * on. If so, assume that whatever is currently programmed is the
1114 * correct mode.
1115 */
Zhenyu Wang541998a2009-06-05 15:38:44 +08001116
Adam Jacksonf2b115e2009-12-03 17:14:42 -05001117 /* Ironlake: FIXME if still fail, not try pipe mode now */
Tvrtko Ursulin6e266952016-10-13 11:02:53 +01001118 if (HAS_PCH_SPLIT(dev_priv))
Zhenyu Wang541998a2009-06-05 15:38:44 +08001119 goto failed;
1120
Jesse Barnes79e53942008-11-07 14:24:08 -08001121 pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
Ville Syrjäläb91eb5c2016-10-31 22:37:09 +02001122 crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
Jesse Barnes79e53942008-11-07 14:24:08 -08001123
1124 if (crtc && (lvds & LVDS_PORT_EN)) {
Ville Syrjäläe2af48c2016-10-31 22:37:05 +02001125 fixed_mode = intel_crtc_mode_get(dev, &crtc->base);
Jani Nikuladd06f902012-10-19 14:51:50 +03001126 if (fixed_mode) {
Chris Wilson6a9d51b2012-11-21 16:14:03 +00001127 DRM_DEBUG_KMS("using current (BIOS) mode: ");
1128 drm_mode_debug_printmodeline(fixed_mode);
Jani Nikuladd06f902012-10-19 14:51:50 +03001129 fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
Paul Collins565dcd42009-02-04 23:05:41 +13001130 goto out;
Jesse Barnes79e53942008-11-07 14:24:08 -08001131 }
1132 }
1133
1134 /* If we still don't have a mode after all that, give up. */
Jani Nikuladd06f902012-10-19 14:51:50 +03001135 if (!fixed_mode)
Jesse Barnes79e53942008-11-07 14:24:08 -08001136 goto failed;
1137
Jesse Barnes79e53942008-11-07 14:24:08 -08001138out:
Daniel Vetter4da98542014-03-21 23:22:35 +01001139 mutex_unlock(&dev->mode_config.mutex);
1140
Jim Bridedc911f52017-08-09 12:48:53 -07001141 intel_panel_init(&intel_connector->panel, fixed_mode, NULL,
1142 downclock_mode);
Chris Wilsonfda9ee92016-06-24 14:00:13 +01001143 intel_panel_setup_backlight(connector, INVALID_PIPE);
Lukas Wunner6f317cf2015-04-12 21:10:35 +02001144
Daniel Vetter7dec0602012-09-11 14:12:25 +02001145 lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder);
Daniel Vetter13c7d872012-11-26 17:22:10 +01001146 DRM_DEBUG_KMS("detected %s-link lvds configuration\n",
1147 lvds_encoder->is_dual_link ? "dual" : "single");
1148
Lukas Wunneraf9b9c12015-11-05 09:30:50 +01001149 lvds_encoder->a3_power = lvds & LVDS_A3_POWER_MASK;
Paulo Zanoni1f835a72014-07-04 13:38:36 -03001150
Jani Nikuladb1740a2012-10-19 14:51:45 +03001151 lvds_connector->lid_notifier.notifier_call = intel_lid_notify;
1152 if (acpi_lid_notifier_register(&lvds_connector->lid_notifier)) {
Zhao Yakui28c97732009-10-09 11:39:41 +08001153 DRM_DEBUG_KMS("lid notifier registration failed\n");
Jani Nikuladb1740a2012-10-19 14:51:45 +03001154 lvds_connector->lid_notifier.notifier_call = NULL;
Jesse Barnesc1c7af62009-09-10 15:28:03 -07001155 }
Matthew Garrettaaa6fd22011-08-12 12:11:33 +02001156
Daniel Vetterc9093352013-06-06 22:22:47 +02001157 return;
Jesse Barnes79e53942008-11-07 14:24:08 -08001158
1159failed:
Daniel Vetter4da98542014-03-21 23:22:35 +01001160 mutex_unlock(&dev->mode_config.mutex);
1161
Zhao Yakui8a4c47f2009-07-20 13:48:04 +08001162 DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
Jesse Barnes79e53942008-11-07 14:24:08 -08001163 drm_connector_cleanup(connector);
Shaohua Li1991bdf2009-11-17 17:19:23 +08001164 drm_encoder_cleanup(encoder);
Jani Nikula29b99b42012-10-19 14:51:43 +03001165 kfree(lvds_encoder);
Jani Nikulac7362c42012-10-19 14:51:44 +03001166 kfree(lvds_connector);
Daniel Vetterc9093352013-06-06 22:22:47 +02001167 return;
Jesse Barnes79e53942008-11-07 14:24:08 -08001168}