2 * Copyright © 2006-2010 Intel Corporation
3 * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
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:
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
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.
25 * Eric Anholt <eric@anholt.net>
26 * Dave Airlie <airlied@linux.ie>
27 * Jesse Barnes <jesse.barnes@intel.com>
28 * Chris Wilson <chris@chris-wilson.co.uk>
31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33 #include <linux/moduleparam.h>
34 #include "intel_drv.h"
37 intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
38 struct drm_display_mode *adjusted_mode)
40 drm_mode_copy(adjusted_mode, fixed_mode);
42 drm_mode_set_crtcinfo(adjusted_mode, 0);
46 * intel_find_panel_downclock - find the reduced downclock for LVDS in EDID
48 * @fixed_mode : panel native mode
49 * @connector: LVDS/eDP connector
51 * Return downclock_avail
52 * Find the reduced downclock for LVDS/eDP in EDID.
54 struct drm_display_mode *
55 intel_find_panel_downclock(struct drm_device *dev,
56 struct drm_display_mode *fixed_mode,
57 struct drm_connector *connector)
59 struct drm_display_mode *scan, *tmp_mode;
62 temp_downclock = fixed_mode->clock;
65 list_for_each_entry(scan, &connector->probed_modes, head) {
67 * If one mode has the same resolution with the fixed_panel
68 * mode while they have the different refresh rate, it means
69 * that the reduced downclock is found. In such
70 * case we can set the different FPx0/1 to dynamically select
71 * between low and high frequency.
73 if (scan->hdisplay == fixed_mode->hdisplay &&
74 scan->hsync_start == fixed_mode->hsync_start &&
75 scan->hsync_end == fixed_mode->hsync_end &&
76 scan->htotal == fixed_mode->htotal &&
77 scan->vdisplay == fixed_mode->vdisplay &&
78 scan->vsync_start == fixed_mode->vsync_start &&
79 scan->vsync_end == fixed_mode->vsync_end &&
80 scan->vtotal == fixed_mode->vtotal) {
81 if (scan->clock < temp_downclock) {
83 * The downclock is already found. But we
84 * expect to find the lower downclock.
86 temp_downclock = scan->clock;
92 if (temp_downclock < fixed_mode->clock)
93 return drm_mode_duplicate(dev, tmp_mode);
98 /* adjusted_mode has been preset to be the panel's fixed mode */
100 intel_pch_panel_fitting(struct intel_crtc *intel_crtc,
101 struct intel_crtc_config *pipe_config,
104 struct drm_display_mode *adjusted_mode;
105 int x, y, width, height;
107 adjusted_mode = &pipe_config->adjusted_mode;
109 x = y = width = height = 0;
111 /* Native modes don't need fitting */
112 if (adjusted_mode->hdisplay == pipe_config->pipe_src_w &&
113 adjusted_mode->vdisplay == pipe_config->pipe_src_h)
116 switch (fitting_mode) {
117 case DRM_MODE_SCALE_CENTER:
118 width = pipe_config->pipe_src_w;
119 height = pipe_config->pipe_src_h;
120 x = (adjusted_mode->hdisplay - width + 1)/2;
121 y = (adjusted_mode->vdisplay - height + 1)/2;
124 case DRM_MODE_SCALE_ASPECT:
125 /* Scale but preserve the aspect ratio */
127 u32 scaled_width = adjusted_mode->hdisplay
128 * pipe_config->pipe_src_h;
129 u32 scaled_height = pipe_config->pipe_src_w
130 * adjusted_mode->vdisplay;
131 if (scaled_width > scaled_height) { /* pillar */
132 width = scaled_height / pipe_config->pipe_src_h;
135 x = (adjusted_mode->hdisplay - width + 1) / 2;
137 height = adjusted_mode->vdisplay;
138 } else if (scaled_width < scaled_height) { /* letter */
139 height = scaled_width / pipe_config->pipe_src_w;
142 y = (adjusted_mode->vdisplay - height + 1) / 2;
144 width = adjusted_mode->hdisplay;
147 width = adjusted_mode->hdisplay;
148 height = adjusted_mode->vdisplay;
153 case DRM_MODE_SCALE_FULLSCREEN:
155 width = adjusted_mode->hdisplay;
156 height = adjusted_mode->vdisplay;
160 WARN(1, "bad panel fit mode: %d\n", fitting_mode);
165 pipe_config->pch_pfit.pos = (x << 16) | y;
166 pipe_config->pch_pfit.size = (width << 16) | height;
167 pipe_config->pch_pfit.enabled = pipe_config->pch_pfit.size != 0;
171 centre_horizontally(struct drm_display_mode *mode,
174 u32 border, sync_pos, blank_width, sync_width;
176 /* keep the hsync and hblank widths constant */
177 sync_width = mode->crtc_hsync_end - mode->crtc_hsync_start;
178 blank_width = mode->crtc_hblank_end - mode->crtc_hblank_start;
179 sync_pos = (blank_width - sync_width + 1) / 2;
181 border = (mode->hdisplay - width + 1) / 2;
182 border += border & 1; /* make the border even */
184 mode->crtc_hdisplay = width;
185 mode->crtc_hblank_start = width + border;
186 mode->crtc_hblank_end = mode->crtc_hblank_start + blank_width;
188 mode->crtc_hsync_start = mode->crtc_hblank_start + sync_pos;
189 mode->crtc_hsync_end = mode->crtc_hsync_start + sync_width;
193 centre_vertically(struct drm_display_mode *mode,
196 u32 border, sync_pos, blank_width, sync_width;
198 /* keep the vsync and vblank widths constant */
199 sync_width = mode->crtc_vsync_end - mode->crtc_vsync_start;
200 blank_width = mode->crtc_vblank_end - mode->crtc_vblank_start;
201 sync_pos = (blank_width - sync_width + 1) / 2;
203 border = (mode->vdisplay - height + 1) / 2;
205 mode->crtc_vdisplay = height;
206 mode->crtc_vblank_start = height + border;
207 mode->crtc_vblank_end = mode->crtc_vblank_start + blank_width;
209 mode->crtc_vsync_start = mode->crtc_vblank_start + sync_pos;
210 mode->crtc_vsync_end = mode->crtc_vsync_start + sync_width;
213 static inline u32 panel_fitter_scaling(u32 source, u32 target)
216 * Floating point operation is not supported. So the FACTOR
217 * is defined, which can avoid the floating point computation
218 * when calculating the panel ratio.
221 #define FACTOR (1 << ACCURACY)
222 u32 ratio = source * FACTOR / target;
223 return (FACTOR * ratio + FACTOR/2) / FACTOR;
226 static void i965_scale_aspect(struct intel_crtc_config *pipe_config,
229 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
230 u32 scaled_width = adjusted_mode->hdisplay *
231 pipe_config->pipe_src_h;
232 u32 scaled_height = pipe_config->pipe_src_w *
233 adjusted_mode->vdisplay;
235 /* 965+ is easy, it does everything in hw */
236 if (scaled_width > scaled_height)
237 *pfit_control |= PFIT_ENABLE |
239 else if (scaled_width < scaled_height)
240 *pfit_control |= PFIT_ENABLE |
242 else if (adjusted_mode->hdisplay != pipe_config->pipe_src_w)
243 *pfit_control |= PFIT_ENABLE | PFIT_SCALING_AUTO;
246 static void i9xx_scale_aspect(struct intel_crtc_config *pipe_config,
247 u32 *pfit_control, u32 *pfit_pgm_ratios,
250 struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
251 u32 scaled_width = adjusted_mode->hdisplay *
252 pipe_config->pipe_src_h;
253 u32 scaled_height = pipe_config->pipe_src_w *
254 adjusted_mode->vdisplay;
258 * For earlier chips we have to calculate the scaling
259 * ratio by hand and program it into the
260 * PFIT_PGM_RATIO register
262 if (scaled_width > scaled_height) { /* pillar */
263 centre_horizontally(adjusted_mode,
265 pipe_config->pipe_src_h);
267 *border = LVDS_BORDER_ENABLE;
268 if (pipe_config->pipe_src_h != adjusted_mode->vdisplay) {
269 bits = panel_fitter_scaling(pipe_config->pipe_src_h,
270 adjusted_mode->vdisplay);
272 *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
273 bits << PFIT_VERT_SCALE_SHIFT);
274 *pfit_control |= (PFIT_ENABLE |
275 VERT_INTERP_BILINEAR |
276 HORIZ_INTERP_BILINEAR);
278 } else if (scaled_width < scaled_height) { /* letter */
279 centre_vertically(adjusted_mode,
281 pipe_config->pipe_src_w);
283 *border = LVDS_BORDER_ENABLE;
284 if (pipe_config->pipe_src_w != adjusted_mode->hdisplay) {
285 bits = panel_fitter_scaling(pipe_config->pipe_src_w,
286 adjusted_mode->hdisplay);
288 *pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
289 bits << PFIT_VERT_SCALE_SHIFT);
290 *pfit_control |= (PFIT_ENABLE |
291 VERT_INTERP_BILINEAR |
292 HORIZ_INTERP_BILINEAR);
295 /* Aspects match, Let hw scale both directions */
296 *pfit_control |= (PFIT_ENABLE |
297 VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
298 VERT_INTERP_BILINEAR |
299 HORIZ_INTERP_BILINEAR);
303 void intel_gmch_panel_fitting(struct intel_crtc *intel_crtc,
304 struct intel_crtc_config *pipe_config,
307 struct drm_device *dev = intel_crtc->base.dev;
308 u32 pfit_control = 0, pfit_pgm_ratios = 0, border = 0;
309 struct drm_display_mode *adjusted_mode;
311 adjusted_mode = &pipe_config->adjusted_mode;
313 /* Native modes don't need fitting */
314 if (adjusted_mode->hdisplay == pipe_config->pipe_src_w &&
315 adjusted_mode->vdisplay == pipe_config->pipe_src_h)
318 switch (fitting_mode) {
319 case DRM_MODE_SCALE_CENTER:
321 * For centered modes, we have to calculate border widths &
322 * heights and modify the values programmed into the CRTC.
324 centre_horizontally(adjusted_mode, pipe_config->pipe_src_w);
325 centre_vertically(adjusted_mode, pipe_config->pipe_src_h);
326 border = LVDS_BORDER_ENABLE;
328 case DRM_MODE_SCALE_ASPECT:
329 /* Scale but preserve the aspect ratio */
330 if (INTEL_INFO(dev)->gen >= 4)
331 i965_scale_aspect(pipe_config, &pfit_control);
333 i9xx_scale_aspect(pipe_config, &pfit_control,
334 &pfit_pgm_ratios, &border);
336 case DRM_MODE_SCALE_FULLSCREEN:
338 * Full scaling, even if it changes the aspect ratio.
339 * Fortunately this is all done for us in hw.
341 if (pipe_config->pipe_src_h != adjusted_mode->vdisplay ||
342 pipe_config->pipe_src_w != adjusted_mode->hdisplay) {
343 pfit_control |= PFIT_ENABLE;
344 if (INTEL_INFO(dev)->gen >= 4)
345 pfit_control |= PFIT_SCALING_AUTO;
347 pfit_control |= (VERT_AUTO_SCALE |
348 VERT_INTERP_BILINEAR |
350 HORIZ_INTERP_BILINEAR);
354 WARN(1, "bad panel fit mode: %d\n", fitting_mode);
358 /* 965+ wants fuzzy fitting */
359 /* FIXME: handle multiple panels by failing gracefully */
360 if (INTEL_INFO(dev)->gen >= 4)
361 pfit_control |= ((intel_crtc->pipe << PFIT_PIPE_SHIFT) |
365 if ((pfit_control & PFIT_ENABLE) == 0) {
370 /* Make sure pre-965 set dither correctly for 18bpp panels. */
371 if (INTEL_INFO(dev)->gen < 4 && pipe_config->pipe_bpp == 18)
372 pfit_control |= PANEL_8TO6_DITHER_ENABLE;
374 pipe_config->gmch_pfit.control = pfit_control;
375 pipe_config->gmch_pfit.pgm_ratios = pfit_pgm_ratios;
376 pipe_config->gmch_pfit.lvds_border_bits = border;
379 enum drm_connector_status
380 intel_panel_detect(struct drm_device *dev)
382 struct drm_i915_private *dev_priv = dev->dev_private;
384 /* Assume that the BIOS does not lie through the OpRegion... */
385 if (!i915.panel_ignore_lid && dev_priv->opregion.lid_state) {
386 return ioread32(dev_priv->opregion.lid_state) & 0x1 ?
387 connector_status_connected :
388 connector_status_disconnected;
391 switch (i915.panel_ignore_lid) {
393 return connector_status_connected;
395 return connector_status_disconnected;
397 return connector_status_unknown;
402 * scale - scale values from one range to another
404 * @source_val: value in range [@source_min..@source_max]
406 * Return @source_val in range [@source_min..@source_max] scaled to range
407 * [@target_min..@target_max].
409 static uint32_t scale(uint32_t source_val,
410 uint32_t source_min, uint32_t source_max,
411 uint32_t target_min, uint32_t target_max)
415 WARN_ON(source_min > source_max);
416 WARN_ON(target_min > target_max);
419 source_val = clamp(source_val, source_min, source_max);
421 /* avoid overflows */
422 target_val = DIV_ROUND_CLOSEST_ULL((uint64_t)(source_val - source_min) *
423 (target_max - target_min), source_max - source_min);
424 target_val += target_min;
429 /* Scale user_level in range [0..user_max] to [hw_min..hw_max]. */
430 static inline u32 scale_user_to_hw(struct intel_connector *connector,
431 u32 user_level, u32 user_max)
433 struct intel_panel *panel = &connector->panel;
435 return scale(user_level, 0, user_max,
436 panel->backlight.min, panel->backlight.max);
439 /* Scale user_level in range [0..user_max] to [0..hw_max], clamping the result
440 * to [hw_min..hw_max]. */
441 static inline u32 clamp_user_to_hw(struct intel_connector *connector,
442 u32 user_level, u32 user_max)
444 struct intel_panel *panel = &connector->panel;
447 hw_level = scale(user_level, 0, user_max, 0, panel->backlight.max);
448 hw_level = clamp(hw_level, panel->backlight.min, panel->backlight.max);
453 /* Scale hw_level in range [hw_min..hw_max] to [0..user_max]. */
454 static inline u32 scale_hw_to_user(struct intel_connector *connector,
455 u32 hw_level, u32 user_max)
457 struct intel_panel *panel = &connector->panel;
459 return scale(hw_level, panel->backlight.min, panel->backlight.max,
463 static u32 intel_panel_compute_brightness(struct intel_connector *connector,
466 struct drm_device *dev = connector->base.dev;
467 struct drm_i915_private *dev_priv = dev->dev_private;
468 struct intel_panel *panel = &connector->panel;
470 WARN_ON(panel->backlight.max == 0);
472 if (i915.invert_brightness < 0)
475 if (i915.invert_brightness > 0 ||
476 dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
477 return panel->backlight.max - val;
483 static u32 bdw_get_backlight(struct intel_connector *connector)
485 struct drm_device *dev = connector->base.dev;
486 struct drm_i915_private *dev_priv = dev->dev_private;
488 return I915_READ(BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
491 static u32 pch_get_backlight(struct intel_connector *connector)
493 struct drm_device *dev = connector->base.dev;
494 struct drm_i915_private *dev_priv = dev->dev_private;
496 return I915_READ(BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
499 static u32 i9xx_get_backlight(struct intel_connector *connector)
501 struct drm_device *dev = connector->base.dev;
502 struct drm_i915_private *dev_priv = dev->dev_private;
503 struct intel_panel *panel = &connector->panel;
506 val = I915_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
507 if (INTEL_INFO(dev)->gen < 4)
510 if (panel->backlight.combination_mode) {
513 pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc);
520 static u32 _vlv_get_backlight(struct drm_device *dev, enum pipe pipe)
522 struct drm_i915_private *dev_priv = dev->dev_private;
524 return I915_READ(VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
527 static u32 vlv_get_backlight(struct intel_connector *connector)
529 struct drm_device *dev = connector->base.dev;
530 enum pipe pipe = intel_get_pipe_from_connector(connector);
532 return _vlv_get_backlight(dev, pipe);
535 static u32 intel_panel_get_backlight(struct intel_connector *connector)
537 struct drm_device *dev = connector->base.dev;
538 struct drm_i915_private *dev_priv = dev->dev_private;
541 mutex_lock(&dev_priv->backlight_lock);
543 val = dev_priv->display.get_backlight(connector);
544 val = intel_panel_compute_brightness(connector, val);
546 mutex_unlock(&dev_priv->backlight_lock);
548 DRM_DEBUG_DRIVER("get backlight PWM = %d\n", val);
552 static void bdw_set_backlight(struct intel_connector *connector, u32 level)
554 struct drm_device *dev = connector->base.dev;
555 struct drm_i915_private *dev_priv = dev->dev_private;
556 u32 val = I915_READ(BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
557 I915_WRITE(BLC_PWM_PCH_CTL2, val | level);
560 static void pch_set_backlight(struct intel_connector *connector, u32 level)
562 struct drm_device *dev = connector->base.dev;
563 struct drm_i915_private *dev_priv = dev->dev_private;
566 tmp = I915_READ(BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
567 I915_WRITE(BLC_PWM_CPU_CTL, tmp | level);
570 static void i9xx_set_backlight(struct intel_connector *connector, u32 level)
572 struct drm_device *dev = connector->base.dev;
573 struct drm_i915_private *dev_priv = dev->dev_private;
574 struct intel_panel *panel = &connector->panel;
577 WARN_ON(panel->backlight.max == 0);
579 if (panel->backlight.combination_mode) {
582 lbpc = level * 0xfe / panel->backlight.max + 1;
584 pci_write_config_byte(dev->pdev, PCI_LBPC, lbpc);
588 mask = BACKLIGHT_DUTY_CYCLE_MASK;
591 mask = BACKLIGHT_DUTY_CYCLE_MASK_PNV;
594 tmp = I915_READ(BLC_PWM_CTL) & ~mask;
595 I915_WRITE(BLC_PWM_CTL, tmp | level);
598 static void vlv_set_backlight(struct intel_connector *connector, u32 level)
600 struct drm_device *dev = connector->base.dev;
601 struct drm_i915_private *dev_priv = dev->dev_private;
602 enum pipe pipe = intel_get_pipe_from_connector(connector);
605 tmp = I915_READ(VLV_BLC_PWM_CTL(pipe)) & ~BACKLIGHT_DUTY_CYCLE_MASK;
606 I915_WRITE(VLV_BLC_PWM_CTL(pipe), tmp | level);
610 intel_panel_actually_set_backlight(struct intel_connector *connector, u32 level)
612 struct drm_device *dev = connector->base.dev;
613 struct drm_i915_private *dev_priv = dev->dev_private;
615 DRM_DEBUG_DRIVER("set backlight PWM = %d\n", level);
617 level = intel_panel_compute_brightness(connector, level);
618 dev_priv->display.set_backlight(connector, level);
621 /* set backlight brightness to level in range [0..max], scaling wrt hw min */
622 static void intel_panel_set_backlight(struct intel_connector *connector,
623 u32 user_level, u32 user_max)
625 struct drm_device *dev = connector->base.dev;
626 struct drm_i915_private *dev_priv = dev->dev_private;
627 struct intel_panel *panel = &connector->panel;
628 enum pipe pipe = intel_get_pipe_from_connector(connector);
631 if (!panel->backlight.present || pipe == INVALID_PIPE)
634 mutex_lock(&dev_priv->backlight_lock);
636 WARN_ON(panel->backlight.max == 0);
638 hw_level = scale_user_to_hw(connector, user_level, user_max);
639 panel->backlight.level = hw_level;
641 if (panel->backlight.enabled)
642 intel_panel_actually_set_backlight(connector, hw_level);
644 mutex_unlock(&dev_priv->backlight_lock);
647 /* set backlight brightness to level in range [0..max], assuming hw min is
650 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
651 u32 user_level, u32 user_max)
653 struct drm_device *dev = connector->base.dev;
654 struct drm_i915_private *dev_priv = dev->dev_private;
655 struct intel_panel *panel = &connector->panel;
656 enum pipe pipe = intel_get_pipe_from_connector(connector);
659 if (!panel->backlight.present || pipe == INVALID_PIPE)
662 mutex_lock(&dev_priv->backlight_lock);
664 WARN_ON(panel->backlight.max == 0);
666 hw_level = clamp_user_to_hw(connector, user_level, user_max);
667 panel->backlight.level = hw_level;
669 if (panel->backlight.device)
670 panel->backlight.device->props.brightness =
671 scale_hw_to_user(connector,
672 panel->backlight.level,
673 panel->backlight.device->props.max_brightness);
675 if (panel->backlight.enabled)
676 intel_panel_actually_set_backlight(connector, hw_level);
678 mutex_unlock(&dev_priv->backlight_lock);
681 static void pch_disable_backlight(struct intel_connector *connector)
683 struct drm_device *dev = connector->base.dev;
684 struct drm_i915_private *dev_priv = dev->dev_private;
687 intel_panel_actually_set_backlight(connector, 0);
689 tmp = I915_READ(BLC_PWM_CPU_CTL2);
690 I915_WRITE(BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
692 tmp = I915_READ(BLC_PWM_PCH_CTL1);
693 I915_WRITE(BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
696 static void i9xx_disable_backlight(struct intel_connector *connector)
698 intel_panel_actually_set_backlight(connector, 0);
701 static void i965_disable_backlight(struct intel_connector *connector)
703 struct drm_device *dev = connector->base.dev;
704 struct drm_i915_private *dev_priv = dev->dev_private;
707 intel_panel_actually_set_backlight(connector, 0);
709 tmp = I915_READ(BLC_PWM_CTL2);
710 I915_WRITE(BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE);
713 static void vlv_disable_backlight(struct intel_connector *connector)
715 struct drm_device *dev = connector->base.dev;
716 struct drm_i915_private *dev_priv = dev->dev_private;
717 enum pipe pipe = intel_get_pipe_from_connector(connector);
720 intel_panel_actually_set_backlight(connector, 0);
722 tmp = I915_READ(VLV_BLC_PWM_CTL2(pipe));
723 I915_WRITE(VLV_BLC_PWM_CTL2(pipe), tmp & ~BLM_PWM_ENABLE);
726 void intel_panel_disable_backlight(struct intel_connector *connector)
728 struct drm_device *dev = connector->base.dev;
729 struct drm_i915_private *dev_priv = dev->dev_private;
730 struct intel_panel *panel = &connector->panel;
731 enum pipe pipe = intel_get_pipe_from_connector(connector);
733 if (!panel->backlight.present || pipe == INVALID_PIPE)
737 * Do not disable backlight on the vgaswitcheroo path. When switching
738 * away from i915, the other client may depend on i915 to handle the
739 * backlight. This will leave the backlight on unnecessarily when
740 * another client is not activated.
742 if (dev->switch_power_state == DRM_SWITCH_POWER_CHANGING) {
743 DRM_DEBUG_DRIVER("Skipping backlight disable on vga switch\n");
747 mutex_lock(&dev_priv->backlight_lock);
749 if (panel->backlight.device)
750 panel->backlight.device->props.power = FB_BLANK_POWERDOWN;
751 panel->backlight.enabled = false;
752 dev_priv->display.disable_backlight(connector);
754 mutex_unlock(&dev_priv->backlight_lock);
757 static void bdw_enable_backlight(struct intel_connector *connector)
759 struct drm_device *dev = connector->base.dev;
760 struct drm_i915_private *dev_priv = dev->dev_private;
761 struct intel_panel *panel = &connector->panel;
762 u32 pch_ctl1, pch_ctl2;
764 pch_ctl1 = I915_READ(BLC_PWM_PCH_CTL1);
765 if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
766 DRM_DEBUG_KMS("pch backlight already enabled\n");
767 pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
768 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1);
771 pch_ctl2 = panel->backlight.max << 16;
772 I915_WRITE(BLC_PWM_PCH_CTL2, pch_ctl2);
775 if (panel->backlight.active_low_pwm)
776 pch_ctl1 |= BLM_PCH_POLARITY;
778 /* After LPT, override is the default. */
779 if (HAS_PCH_LPT(dev_priv))
780 pch_ctl1 |= BLM_PCH_OVERRIDE_ENABLE;
782 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1);
783 POSTING_READ(BLC_PWM_PCH_CTL1);
784 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
786 /* This won't stick until the above enable. */
787 intel_panel_actually_set_backlight(connector, panel->backlight.level);
790 static void pch_enable_backlight(struct intel_connector *connector)
792 struct drm_device *dev = connector->base.dev;
793 struct drm_i915_private *dev_priv = dev->dev_private;
794 struct intel_panel *panel = &connector->panel;
795 enum pipe pipe = intel_get_pipe_from_connector(connector);
796 enum transcoder cpu_transcoder =
797 intel_pipe_to_cpu_transcoder(dev_priv, pipe);
798 u32 cpu_ctl2, pch_ctl1, pch_ctl2;
800 cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);
801 if (cpu_ctl2 & BLM_PWM_ENABLE) {
802 DRM_DEBUG_KMS("cpu backlight already enabled\n");
803 cpu_ctl2 &= ~BLM_PWM_ENABLE;
804 I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2);
807 pch_ctl1 = I915_READ(BLC_PWM_PCH_CTL1);
808 if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
809 DRM_DEBUG_KMS("pch backlight already enabled\n");
810 pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
811 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1);
814 if (cpu_transcoder == TRANSCODER_EDP)
815 cpu_ctl2 = BLM_TRANSCODER_EDP;
817 cpu_ctl2 = BLM_PIPE(cpu_transcoder);
818 I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2);
819 POSTING_READ(BLC_PWM_CPU_CTL2);
820 I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
822 /* This won't stick until the above enable. */
823 intel_panel_actually_set_backlight(connector, panel->backlight.level);
825 pch_ctl2 = panel->backlight.max << 16;
826 I915_WRITE(BLC_PWM_PCH_CTL2, pch_ctl2);
829 if (panel->backlight.active_low_pwm)
830 pch_ctl1 |= BLM_PCH_POLARITY;
832 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1);
833 POSTING_READ(BLC_PWM_PCH_CTL1);
834 I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
837 static void i9xx_enable_backlight(struct intel_connector *connector)
839 struct drm_device *dev = connector->base.dev;
840 struct drm_i915_private *dev_priv = dev->dev_private;
841 struct intel_panel *panel = &connector->panel;
844 ctl = I915_READ(BLC_PWM_CTL);
845 if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {
846 DRM_DEBUG_KMS("backlight already enabled\n");
847 I915_WRITE(BLC_PWM_CTL, 0);
850 freq = panel->backlight.max;
851 if (panel->backlight.combination_mode)
855 if (panel->backlight.combination_mode)
856 ctl |= BLM_LEGACY_MODE;
857 if (IS_PINEVIEW(dev) && panel->backlight.active_low_pwm)
858 ctl |= BLM_POLARITY_PNV;
860 I915_WRITE(BLC_PWM_CTL, ctl);
861 POSTING_READ(BLC_PWM_CTL);
863 /* XXX: combine this into above write? */
864 intel_panel_actually_set_backlight(connector, panel->backlight.level);
867 static void i965_enable_backlight(struct intel_connector *connector)
869 struct drm_device *dev = connector->base.dev;
870 struct drm_i915_private *dev_priv = dev->dev_private;
871 struct intel_panel *panel = &connector->panel;
872 enum pipe pipe = intel_get_pipe_from_connector(connector);
875 ctl2 = I915_READ(BLC_PWM_CTL2);
876 if (ctl2 & BLM_PWM_ENABLE) {
877 DRM_DEBUG_KMS("backlight already enabled\n");
878 ctl2 &= ~BLM_PWM_ENABLE;
879 I915_WRITE(BLC_PWM_CTL2, ctl2);
882 freq = panel->backlight.max;
883 if (panel->backlight.combination_mode)
887 I915_WRITE(BLC_PWM_CTL, ctl);
889 ctl2 = BLM_PIPE(pipe);
890 if (panel->backlight.combination_mode)
891 ctl2 |= BLM_COMBINATION_MODE;
892 if (panel->backlight.active_low_pwm)
893 ctl2 |= BLM_POLARITY_I965;
894 I915_WRITE(BLC_PWM_CTL2, ctl2);
895 POSTING_READ(BLC_PWM_CTL2);
896 I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
898 intel_panel_actually_set_backlight(connector, panel->backlight.level);
901 static void vlv_enable_backlight(struct intel_connector *connector)
903 struct drm_device *dev = connector->base.dev;
904 struct drm_i915_private *dev_priv = dev->dev_private;
905 struct intel_panel *panel = &connector->panel;
906 enum pipe pipe = intel_get_pipe_from_connector(connector);
909 ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));
910 if (ctl2 & BLM_PWM_ENABLE) {
911 DRM_DEBUG_KMS("backlight already enabled\n");
912 ctl2 &= ~BLM_PWM_ENABLE;
913 I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);
916 ctl = panel->backlight.max << 16;
917 I915_WRITE(VLV_BLC_PWM_CTL(pipe), ctl);
919 /* XXX: combine this into above write? */
920 intel_panel_actually_set_backlight(connector, panel->backlight.level);
923 if (panel->backlight.active_low_pwm)
924 ctl2 |= BLM_POLARITY_I965;
925 I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2);
926 POSTING_READ(VLV_BLC_PWM_CTL2(pipe));
927 I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);
930 void intel_panel_enable_backlight(struct intel_connector *connector)
932 struct drm_device *dev = connector->base.dev;
933 struct drm_i915_private *dev_priv = dev->dev_private;
934 struct intel_panel *panel = &connector->panel;
935 enum pipe pipe = intel_get_pipe_from_connector(connector);
937 if (!panel->backlight.present || pipe == INVALID_PIPE)
940 DRM_DEBUG_KMS("pipe %c\n", pipe_name(pipe));
942 mutex_lock(&dev_priv->backlight_lock);
944 WARN_ON(panel->backlight.max == 0);
946 if (panel->backlight.level == 0) {
947 panel->backlight.level = panel->backlight.max;
948 if (panel->backlight.device)
949 panel->backlight.device->props.brightness =
950 scale_hw_to_user(connector,
951 panel->backlight.level,
952 panel->backlight.device->props.max_brightness);
955 dev_priv->display.enable_backlight(connector);
956 panel->backlight.enabled = true;
957 if (panel->backlight.device)
958 panel->backlight.device->props.power = FB_BLANK_UNBLANK;
960 mutex_unlock(&dev_priv->backlight_lock);
963 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
964 static int intel_backlight_device_update_status(struct backlight_device *bd)
966 struct intel_connector *connector = bl_get_data(bd);
967 struct intel_panel *panel = &connector->panel;
968 struct drm_device *dev = connector->base.dev;
970 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
971 DRM_DEBUG_KMS("updating intel_backlight, brightness=%d/%d\n",
972 bd->props.brightness, bd->props.max_brightness);
973 intel_panel_set_backlight(connector, bd->props.brightness,
974 bd->props.max_brightness);
977 * Allow flipping bl_power as a sub-state of enabled. Sadly the
978 * backlight class device does not make it easy to to differentiate
979 * between callbacks for brightness and bl_power, so our backlight_power
980 * callback needs to take this into account.
982 if (panel->backlight.enabled) {
983 if (panel->backlight_power) {
984 bool enable = bd->props.power == FB_BLANK_UNBLANK &&
985 bd->props.brightness != 0;
986 panel->backlight_power(connector, enable);
989 bd->props.power = FB_BLANK_POWERDOWN;
992 drm_modeset_unlock(&dev->mode_config.connection_mutex);
996 static int intel_backlight_device_get_brightness(struct backlight_device *bd)
998 struct intel_connector *connector = bl_get_data(bd);
999 struct drm_device *dev = connector->base.dev;
1000 struct drm_i915_private *dev_priv = dev->dev_private;
1004 intel_runtime_pm_get(dev_priv);
1005 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
1007 hw_level = intel_panel_get_backlight(connector);
1008 ret = scale_hw_to_user(connector, hw_level, bd->props.max_brightness);
1010 drm_modeset_unlock(&dev->mode_config.connection_mutex);
1011 intel_runtime_pm_put(dev_priv);
1016 static const struct backlight_ops intel_backlight_device_ops = {
1017 .update_status = intel_backlight_device_update_status,
1018 .get_brightness = intel_backlight_device_get_brightness,
1021 static int intel_backlight_device_register(struct intel_connector *connector)
1023 struct intel_panel *panel = &connector->panel;
1024 struct backlight_properties props;
1026 if (WARN_ON(panel->backlight.device))
1029 WARN_ON(panel->backlight.max == 0);
1031 memset(&props, 0, sizeof(props));
1032 props.type = BACKLIGHT_RAW;
1035 * Note: Everything should work even if the backlight device max
1036 * presented to the userspace is arbitrarily chosen.
1038 props.max_brightness = panel->backlight.max;
1039 props.brightness = scale_hw_to_user(connector,
1040 panel->backlight.level,
1041 props.max_brightness);
1043 if (panel->backlight.enabled)
1044 props.power = FB_BLANK_UNBLANK;
1046 props.power = FB_BLANK_POWERDOWN;
1049 * Note: using the same name independent of the connector prevents
1050 * registration of multiple backlight devices in the driver.
1052 panel->backlight.device =
1053 backlight_device_register("intel_backlight",
1054 connector->base.kdev,
1056 &intel_backlight_device_ops, &props);
1058 if (IS_ERR(panel->backlight.device)) {
1059 DRM_ERROR("Failed to register backlight: %ld\n",
1060 PTR_ERR(panel->backlight.device));
1061 panel->backlight.device = NULL;
1067 static void intel_backlight_device_unregister(struct intel_connector *connector)
1069 struct intel_panel *panel = &connector->panel;
1071 if (panel->backlight.device) {
1072 backlight_device_unregister(panel->backlight.device);
1073 panel->backlight.device = NULL;
1076 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1077 static int intel_backlight_device_register(struct intel_connector *connector)
1081 static void intel_backlight_device_unregister(struct intel_connector *connector)
1084 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1087 * Note: The setup hooks can't assume pipe is set!
1089 * XXX: Query mode clock or hardware clock and program PWM modulation frequency
1090 * appropriately when it's 0. Use VBT and/or sane defaults.
1092 static u32 get_backlight_min_vbt(struct intel_connector *connector)
1094 struct drm_device *dev = connector->base.dev;
1095 struct drm_i915_private *dev_priv = dev->dev_private;
1096 struct intel_panel *panel = &connector->panel;
1098 WARN_ON(panel->backlight.max == 0);
1100 /* vbt value is a coefficient in range [0..255] */
1101 return scale(dev_priv->vbt.backlight.min_brightness, 0, 255,
1102 0, panel->backlight.max);
1105 static int bdw_setup_backlight(struct intel_connector *connector)
1107 struct drm_device *dev = connector->base.dev;
1108 struct drm_i915_private *dev_priv = dev->dev_private;
1109 struct intel_panel *panel = &connector->panel;
1110 u32 pch_ctl1, pch_ctl2, val;
1112 pch_ctl1 = I915_READ(BLC_PWM_PCH_CTL1);
1113 panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
1115 pch_ctl2 = I915_READ(BLC_PWM_PCH_CTL2);
1116 panel->backlight.max = pch_ctl2 >> 16;
1117 if (!panel->backlight.max)
1120 panel->backlight.min = get_backlight_min_vbt(connector);
1122 val = bdw_get_backlight(connector);
1123 panel->backlight.level = intel_panel_compute_brightness(connector, val);
1125 panel->backlight.enabled = (pch_ctl1 & BLM_PCH_PWM_ENABLE) &&
1126 panel->backlight.level != 0;
1131 static int pch_setup_backlight(struct intel_connector *connector)
1133 struct drm_device *dev = connector->base.dev;
1134 struct drm_i915_private *dev_priv = dev->dev_private;
1135 struct intel_panel *panel = &connector->panel;
1136 u32 cpu_ctl2, pch_ctl1, pch_ctl2, val;
1138 pch_ctl1 = I915_READ(BLC_PWM_PCH_CTL1);
1139 panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
1141 pch_ctl2 = I915_READ(BLC_PWM_PCH_CTL2);
1142 panel->backlight.max = pch_ctl2 >> 16;
1143 if (!panel->backlight.max)
1146 panel->backlight.min = get_backlight_min_vbt(connector);
1148 val = pch_get_backlight(connector);
1149 panel->backlight.level = intel_panel_compute_brightness(connector, val);
1151 cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);
1152 panel->backlight.enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
1153 (pch_ctl1 & BLM_PCH_PWM_ENABLE) && panel->backlight.level != 0;
1158 static int i9xx_setup_backlight(struct intel_connector *connector)
1160 struct drm_device *dev = connector->base.dev;
1161 struct drm_i915_private *dev_priv = dev->dev_private;
1162 struct intel_panel *panel = &connector->panel;
1165 ctl = I915_READ(BLC_PWM_CTL);
1167 if (IS_GEN2(dev) || IS_I915GM(dev) || IS_I945GM(dev))
1168 panel->backlight.combination_mode = ctl & BLM_LEGACY_MODE;
1170 if (IS_PINEVIEW(dev))
1171 panel->backlight.active_low_pwm = ctl & BLM_POLARITY_PNV;
1173 panel->backlight.max = ctl >> 17;
1174 if (panel->backlight.combination_mode)
1175 panel->backlight.max *= 0xff;
1177 if (!panel->backlight.max)
1180 panel->backlight.min = get_backlight_min_vbt(connector);
1182 val = i9xx_get_backlight(connector);
1183 panel->backlight.level = intel_panel_compute_brightness(connector, val);
1185 panel->backlight.enabled = panel->backlight.level != 0;
1190 static int i965_setup_backlight(struct intel_connector *connector)
1192 struct drm_device *dev = connector->base.dev;
1193 struct drm_i915_private *dev_priv = dev->dev_private;
1194 struct intel_panel *panel = &connector->panel;
1197 ctl2 = I915_READ(BLC_PWM_CTL2);
1198 panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;
1199 panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
1201 ctl = I915_READ(BLC_PWM_CTL);
1202 panel->backlight.max = ctl >> 16;
1203 if (panel->backlight.combination_mode)
1204 panel->backlight.max *= 0xff;
1206 if (!panel->backlight.max)
1209 panel->backlight.min = get_backlight_min_vbt(connector);
1211 val = i9xx_get_backlight(connector);
1212 panel->backlight.level = intel_panel_compute_brightness(connector, val);
1214 panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&
1215 panel->backlight.level != 0;
1220 static int vlv_setup_backlight(struct intel_connector *connector)
1222 struct drm_device *dev = connector->base.dev;
1223 struct drm_i915_private *dev_priv = dev->dev_private;
1224 struct intel_panel *panel = &connector->panel;
1228 for_each_pipe(dev_priv, pipe) {
1229 u32 cur_val = I915_READ(VLV_BLC_PWM_CTL(pipe));
1231 /* Skip if the modulation freq is already set */
1232 if (cur_val & ~BACKLIGHT_DUTY_CYCLE_MASK)
1235 cur_val &= BACKLIGHT_DUTY_CYCLE_MASK;
1236 I915_WRITE(VLV_BLC_PWM_CTL(pipe), (0xf42 << 16) |
1240 ctl2 = I915_READ(VLV_BLC_PWM_CTL2(PIPE_A));
1241 panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
1243 ctl = I915_READ(VLV_BLC_PWM_CTL(PIPE_A));
1244 panel->backlight.max = ctl >> 16;
1245 if (!panel->backlight.max)
1248 panel->backlight.min = get_backlight_min_vbt(connector);
1250 val = _vlv_get_backlight(dev, PIPE_A);
1251 panel->backlight.level = intel_panel_compute_brightness(connector, val);
1253 panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) &&
1254 panel->backlight.level != 0;
1259 int intel_panel_setup_backlight(struct drm_connector *connector)
1261 struct drm_device *dev = connector->dev;
1262 struct drm_i915_private *dev_priv = dev->dev_private;
1263 struct intel_connector *intel_connector = to_intel_connector(connector);
1264 struct intel_panel *panel = &intel_connector->panel;
1267 if (!dev_priv->vbt.backlight.present) {
1268 if (dev_priv->quirks & QUIRK_BACKLIGHT_PRESENT) {
1269 DRM_DEBUG_KMS("no backlight present per VBT, but present per quirk\n");
1271 DRM_DEBUG_KMS("no backlight present per VBT\n");
1276 /* set level and max in panel struct */
1277 mutex_lock(&dev_priv->backlight_lock);
1278 ret = dev_priv->display.setup_backlight(intel_connector);
1279 mutex_unlock(&dev_priv->backlight_lock);
1282 DRM_DEBUG_KMS("failed to setup backlight for connector %s\n",
1287 intel_backlight_device_register(intel_connector);
1289 panel->backlight.present = true;
1291 DRM_DEBUG_KMS("backlight initialized, %s, brightness %u/%u, "
1292 "sysfs interface %sregistered\n",
1293 panel->backlight.enabled ? "enabled" : "disabled",
1294 panel->backlight.level, panel->backlight.max,
1295 panel->backlight.device ? "" : "not ");
1300 void intel_panel_destroy_backlight(struct drm_connector *connector)
1302 struct intel_connector *intel_connector = to_intel_connector(connector);
1303 struct intel_panel *panel = &intel_connector->panel;
1305 panel->backlight.present = false;
1306 intel_backlight_device_unregister(intel_connector);
1309 /* Set up chip specific backlight functions */
1310 void intel_panel_init_backlight_funcs(struct drm_device *dev)
1312 struct drm_i915_private *dev_priv = dev->dev_private;
1314 if (IS_BROADWELL(dev) || (INTEL_INFO(dev)->gen >= 9)) {
1315 dev_priv->display.setup_backlight = bdw_setup_backlight;
1316 dev_priv->display.enable_backlight = bdw_enable_backlight;
1317 dev_priv->display.disable_backlight = pch_disable_backlight;
1318 dev_priv->display.set_backlight = bdw_set_backlight;
1319 dev_priv->display.get_backlight = bdw_get_backlight;
1320 } else if (HAS_PCH_SPLIT(dev)) {
1321 dev_priv->display.setup_backlight = pch_setup_backlight;
1322 dev_priv->display.enable_backlight = pch_enable_backlight;
1323 dev_priv->display.disable_backlight = pch_disable_backlight;
1324 dev_priv->display.set_backlight = pch_set_backlight;
1325 dev_priv->display.get_backlight = pch_get_backlight;
1326 } else if (IS_VALLEYVIEW(dev)) {
1327 dev_priv->display.setup_backlight = vlv_setup_backlight;
1328 dev_priv->display.enable_backlight = vlv_enable_backlight;
1329 dev_priv->display.disable_backlight = vlv_disable_backlight;
1330 dev_priv->display.set_backlight = vlv_set_backlight;
1331 dev_priv->display.get_backlight = vlv_get_backlight;
1332 } else if (IS_GEN4(dev)) {
1333 dev_priv->display.setup_backlight = i965_setup_backlight;
1334 dev_priv->display.enable_backlight = i965_enable_backlight;
1335 dev_priv->display.disable_backlight = i965_disable_backlight;
1336 dev_priv->display.set_backlight = i9xx_set_backlight;
1337 dev_priv->display.get_backlight = i9xx_get_backlight;
1339 dev_priv->display.setup_backlight = i9xx_setup_backlight;
1340 dev_priv->display.enable_backlight = i9xx_enable_backlight;
1341 dev_priv->display.disable_backlight = i9xx_disable_backlight;
1342 dev_priv->display.set_backlight = i9xx_set_backlight;
1343 dev_priv->display.get_backlight = i9xx_get_backlight;
1347 int intel_panel_init(struct intel_panel *panel,
1348 struct drm_display_mode *fixed_mode,
1349 struct drm_display_mode *downclock_mode)
1351 panel->fixed_mode = fixed_mode;
1352 panel->downclock_mode = downclock_mode;
1357 void intel_panel_fini(struct intel_panel *panel)
1359 struct intel_connector *intel_connector =
1360 container_of(panel, struct intel_connector, panel);
1362 if (panel->fixed_mode)
1363 drm_mode_destroy(intel_connector->base.dev, panel->fixed_mode);
1365 if (panel->downclock_mode)
1366 drm_mode_destroy(intel_connector->base.dev,
1367 panel->downclock_mode);