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45e2b5f640
There seem to be indeed some awkwards machines around, mostly those without OpRegion support, where the firmware changes the display hw state behind our backs when closing the lid. This force-restore logic has been originally introduced in commitc1c7af6089
Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Thu Sep 10 15:28:03 2009 -0700 drm/i915: force mode set at lid open time but after the modeset-rework we've disabled it in the vain hope that it's no longer required: commit3b7a89fce3
Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Sep 17 22:27:21 2012 +0200 drm/i915: fix OOPS in lid_notify Alas, no. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54677 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=57434 Tested-by: Krzysztof Mazur <krzysiek@podlesie.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1145 lines
33 KiB
C
1145 lines
33 KiB
C
/*
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* Copyright © 2006-2007 Intel Corporation
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* Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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* Dave Airlie <airlied@linux.ie>
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* Jesse Barnes <jesse.barnes@intel.com>
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*/
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#include <acpi/button.h>
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#include <linux/dmi.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_edid.h>
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#include "intel_drv.h"
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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#include <linux/acpi.h>
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/* Private structure for the integrated LVDS support */
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struct intel_lvds_connector {
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struct intel_connector base;
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struct notifier_block lid_notifier;
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};
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struct intel_lvds_encoder {
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struct intel_encoder base;
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u32 pfit_control;
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u32 pfit_pgm_ratios;
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bool pfit_dirty;
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struct intel_lvds_connector *attached_connector;
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};
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static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder)
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{
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return container_of(encoder, struct intel_lvds_encoder, base.base);
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}
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static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector)
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{
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return container_of(connector, struct intel_lvds_connector, base.base);
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}
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static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
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enum pipe *pipe)
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{
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struct drm_device *dev = encoder->base.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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u32 lvds_reg, tmp;
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if (HAS_PCH_SPLIT(dev)) {
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lvds_reg = PCH_LVDS;
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} else {
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lvds_reg = LVDS;
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}
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tmp = I915_READ(lvds_reg);
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if (!(tmp & LVDS_PORT_EN))
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return false;
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if (HAS_PCH_CPT(dev))
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*pipe = PORT_TO_PIPE_CPT(tmp);
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else
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*pipe = PORT_TO_PIPE(tmp);
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return true;
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}
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/**
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* Sets the power state for the panel.
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*/
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static void intel_enable_lvds(struct intel_encoder *encoder)
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{
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struct drm_device *dev = encoder->base.dev;
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struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
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struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
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struct drm_i915_private *dev_priv = dev->dev_private;
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u32 ctl_reg, lvds_reg, stat_reg;
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if (HAS_PCH_SPLIT(dev)) {
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ctl_reg = PCH_PP_CONTROL;
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lvds_reg = PCH_LVDS;
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stat_reg = PCH_PP_STATUS;
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} else {
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ctl_reg = PP_CONTROL;
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lvds_reg = LVDS;
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stat_reg = PP_STATUS;
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}
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I915_WRITE(lvds_reg, I915_READ(lvds_reg) | LVDS_PORT_EN);
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if (lvds_encoder->pfit_dirty) {
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/*
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* Enable automatic panel scaling so that non-native modes
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* fill the screen. The panel fitter should only be
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* adjusted whilst the pipe is disabled, according to
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* register description and PRM.
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*/
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DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n",
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lvds_encoder->pfit_control,
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lvds_encoder->pfit_pgm_ratios);
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I915_WRITE(PFIT_PGM_RATIOS, lvds_encoder->pfit_pgm_ratios);
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I915_WRITE(PFIT_CONTROL, lvds_encoder->pfit_control);
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lvds_encoder->pfit_dirty = false;
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}
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I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON);
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POSTING_READ(lvds_reg);
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if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000))
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DRM_ERROR("timed out waiting for panel to power on\n");
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intel_panel_enable_backlight(dev, intel_crtc->pipe);
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}
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static void intel_disable_lvds(struct intel_encoder *encoder)
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{
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struct drm_device *dev = encoder->base.dev;
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struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
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struct drm_i915_private *dev_priv = dev->dev_private;
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u32 ctl_reg, lvds_reg, stat_reg;
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if (HAS_PCH_SPLIT(dev)) {
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ctl_reg = PCH_PP_CONTROL;
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lvds_reg = PCH_LVDS;
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stat_reg = PCH_PP_STATUS;
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} else {
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ctl_reg = PP_CONTROL;
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lvds_reg = LVDS;
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stat_reg = PP_STATUS;
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}
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intel_panel_disable_backlight(dev);
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I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON);
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if (wait_for((I915_READ(stat_reg) & PP_ON) == 0, 1000))
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DRM_ERROR("timed out waiting for panel to power off\n");
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if (lvds_encoder->pfit_control) {
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I915_WRITE(PFIT_CONTROL, 0);
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lvds_encoder->pfit_dirty = true;
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}
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I915_WRITE(lvds_reg, I915_READ(lvds_reg) & ~LVDS_PORT_EN);
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POSTING_READ(lvds_reg);
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}
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static int intel_lvds_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
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if (mode->hdisplay > fixed_mode->hdisplay)
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return MODE_PANEL;
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if (mode->vdisplay > fixed_mode->vdisplay)
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return MODE_PANEL;
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return MODE_OK;
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}
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static void
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centre_horizontally(struct drm_display_mode *mode,
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int width)
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{
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u32 border, sync_pos, blank_width, sync_width;
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/* keep the hsync and hblank widths constant */
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sync_width = mode->crtc_hsync_end - mode->crtc_hsync_start;
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blank_width = mode->crtc_hblank_end - mode->crtc_hblank_start;
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sync_pos = (blank_width - sync_width + 1) / 2;
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border = (mode->hdisplay - width + 1) / 2;
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border += border & 1; /* make the border even */
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mode->crtc_hdisplay = width;
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mode->crtc_hblank_start = width + border;
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mode->crtc_hblank_end = mode->crtc_hblank_start + blank_width;
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mode->crtc_hsync_start = mode->crtc_hblank_start + sync_pos;
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mode->crtc_hsync_end = mode->crtc_hsync_start + sync_width;
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mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET;
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}
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static void
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centre_vertically(struct drm_display_mode *mode,
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int height)
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{
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u32 border, sync_pos, blank_width, sync_width;
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/* keep the vsync and vblank widths constant */
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sync_width = mode->crtc_vsync_end - mode->crtc_vsync_start;
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blank_width = mode->crtc_vblank_end - mode->crtc_vblank_start;
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sync_pos = (blank_width - sync_width + 1) / 2;
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border = (mode->vdisplay - height + 1) / 2;
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mode->crtc_vdisplay = height;
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mode->crtc_vblank_start = height + border;
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mode->crtc_vblank_end = mode->crtc_vblank_start + blank_width;
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mode->crtc_vsync_start = mode->crtc_vblank_start + sync_pos;
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mode->crtc_vsync_end = mode->crtc_vsync_start + sync_width;
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mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET;
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}
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static inline u32 panel_fitter_scaling(u32 source, u32 target)
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{
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/*
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* Floating point operation is not supported. So the FACTOR
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* is defined, which can avoid the floating point computation
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* when calculating the panel ratio.
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*/
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#define ACCURACY 12
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#define FACTOR (1 << ACCURACY)
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u32 ratio = source * FACTOR / target;
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return (FACTOR * ratio + FACTOR/2) / FACTOR;
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}
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static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct drm_device *dev = encoder->dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
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struct intel_connector *intel_connector =
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&lvds_encoder->attached_connector->base;
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struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc;
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u32 pfit_control = 0, pfit_pgm_ratios = 0, border = 0;
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int pipe;
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/* Should never happen!! */
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if (INTEL_INFO(dev)->gen < 4 && intel_crtc->pipe == 0) {
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DRM_ERROR("Can't support LVDS on pipe A\n");
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return false;
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}
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if (intel_encoder_check_is_cloned(&lvds_encoder->base))
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return false;
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/*
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* We have timings from the BIOS for the panel, put them in
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* to the adjusted mode. The CRTC will be set up for this mode,
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* with the panel scaling set up to source from the H/VDisplay
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* of the original mode.
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*/
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intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
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adjusted_mode);
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if (HAS_PCH_SPLIT(dev)) {
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intel_pch_panel_fitting(dev,
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intel_connector->panel.fitting_mode,
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mode, adjusted_mode);
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return true;
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}
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/* Native modes don't need fitting */
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if (adjusted_mode->hdisplay == mode->hdisplay &&
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adjusted_mode->vdisplay == mode->vdisplay)
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goto out;
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/* 965+ wants fuzzy fitting */
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if (INTEL_INFO(dev)->gen >= 4)
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pfit_control |= ((intel_crtc->pipe << PFIT_PIPE_SHIFT) |
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PFIT_FILTER_FUZZY);
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/*
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* Enable automatic panel scaling for non-native modes so that they fill
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* the screen. Should be enabled before the pipe is enabled, according
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* to register description and PRM.
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* Change the value here to see the borders for debugging
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*/
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for_each_pipe(pipe)
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I915_WRITE(BCLRPAT(pipe), 0);
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drm_mode_set_crtcinfo(adjusted_mode, 0);
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switch (intel_connector->panel.fitting_mode) {
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case DRM_MODE_SCALE_CENTER:
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/*
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* For centered modes, we have to calculate border widths &
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* heights and modify the values programmed into the CRTC.
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*/
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centre_horizontally(adjusted_mode, mode->hdisplay);
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centre_vertically(adjusted_mode, mode->vdisplay);
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border = LVDS_BORDER_ENABLE;
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break;
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case DRM_MODE_SCALE_ASPECT:
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/* Scale but preserve the aspect ratio */
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if (INTEL_INFO(dev)->gen >= 4) {
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u32 scaled_width = adjusted_mode->hdisplay * mode->vdisplay;
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u32 scaled_height = mode->hdisplay * adjusted_mode->vdisplay;
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/* 965+ is easy, it does everything in hw */
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if (scaled_width > scaled_height)
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pfit_control |= PFIT_ENABLE | PFIT_SCALING_PILLAR;
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else if (scaled_width < scaled_height)
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pfit_control |= PFIT_ENABLE | PFIT_SCALING_LETTER;
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else if (adjusted_mode->hdisplay != mode->hdisplay)
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pfit_control |= PFIT_ENABLE | PFIT_SCALING_AUTO;
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} else {
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u32 scaled_width = adjusted_mode->hdisplay * mode->vdisplay;
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u32 scaled_height = mode->hdisplay * adjusted_mode->vdisplay;
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/*
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* For earlier chips we have to calculate the scaling
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* ratio by hand and program it into the
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* PFIT_PGM_RATIO register
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*/
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if (scaled_width > scaled_height) { /* pillar */
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centre_horizontally(adjusted_mode, scaled_height / mode->vdisplay);
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border = LVDS_BORDER_ENABLE;
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if (mode->vdisplay != adjusted_mode->vdisplay) {
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u32 bits = panel_fitter_scaling(mode->vdisplay, adjusted_mode->vdisplay);
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pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
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bits << PFIT_VERT_SCALE_SHIFT);
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pfit_control |= (PFIT_ENABLE |
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VERT_INTERP_BILINEAR |
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HORIZ_INTERP_BILINEAR);
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}
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} else if (scaled_width < scaled_height) { /* letter */
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centre_vertically(adjusted_mode, scaled_width / mode->hdisplay);
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border = LVDS_BORDER_ENABLE;
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if (mode->hdisplay != adjusted_mode->hdisplay) {
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u32 bits = panel_fitter_scaling(mode->hdisplay, adjusted_mode->hdisplay);
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pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
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bits << PFIT_VERT_SCALE_SHIFT);
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pfit_control |= (PFIT_ENABLE |
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VERT_INTERP_BILINEAR |
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HORIZ_INTERP_BILINEAR);
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}
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} else
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/* Aspects match, Let hw scale both directions */
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pfit_control |= (PFIT_ENABLE |
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VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
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VERT_INTERP_BILINEAR |
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HORIZ_INTERP_BILINEAR);
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}
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break;
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case DRM_MODE_SCALE_FULLSCREEN:
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/*
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* Full scaling, even if it changes the aspect ratio.
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* Fortunately this is all done for us in hw.
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*/
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if (mode->vdisplay != adjusted_mode->vdisplay ||
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mode->hdisplay != adjusted_mode->hdisplay) {
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pfit_control |= PFIT_ENABLE;
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if (INTEL_INFO(dev)->gen >= 4)
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pfit_control |= PFIT_SCALING_AUTO;
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else
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pfit_control |= (VERT_AUTO_SCALE |
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VERT_INTERP_BILINEAR |
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HORIZ_AUTO_SCALE |
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HORIZ_INTERP_BILINEAR);
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}
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break;
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default:
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break;
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}
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out:
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/* If not enabling scaling, be consistent and always use 0. */
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if ((pfit_control & PFIT_ENABLE) == 0) {
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pfit_control = 0;
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pfit_pgm_ratios = 0;
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}
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/* Make sure pre-965 set dither correctly */
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if (INTEL_INFO(dev)->gen < 4 && dev_priv->lvds_dither)
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pfit_control |= PANEL_8TO6_DITHER_ENABLE;
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if (pfit_control != lvds_encoder->pfit_control ||
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pfit_pgm_ratios != lvds_encoder->pfit_pgm_ratios) {
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lvds_encoder->pfit_control = pfit_control;
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lvds_encoder->pfit_pgm_ratios = pfit_pgm_ratios;
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lvds_encoder->pfit_dirty = true;
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}
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dev_priv->lvds_border_bits = border;
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/*
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* XXX: It would be nice to support lower refresh rates on the
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* panels to reduce power consumption, and perhaps match the
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* user's requested refresh rate.
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*/
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return true;
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}
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static void intel_lvds_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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/*
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* The LVDS pin pair will already have been turned on in the
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* intel_crtc_mode_set since it has a large impact on the DPLL
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* settings.
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*/
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}
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|
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/**
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* Detect the LVDS connection.
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*
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* Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means
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* connected and closed means disconnected. We also send hotplug events as
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* needed, using lid status notification from the input layer.
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*/
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static enum drm_connector_status
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intel_lvds_detect(struct drm_connector *connector, bool force)
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{
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struct drm_device *dev = connector->dev;
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enum drm_connector_status status;
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status = intel_panel_detect(dev);
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if (status != connector_status_unknown)
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return status;
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return connector_status_connected;
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}
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|
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/**
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* Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
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*/
|
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static int intel_lvds_get_modes(struct drm_connector *connector)
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{
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struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
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struct drm_device *dev = connector->dev;
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struct drm_display_mode *mode;
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/* use cached edid if we have one */
|
|
if (!IS_ERR_OR_NULL(lvds_connector->base.edid))
|
|
return drm_add_edid_modes(connector, lvds_connector->base.edid);
|
|
|
|
mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode);
|
|
if (mode == NULL)
|
|
return 0;
|
|
|
|
drm_mode_probed_add(connector, mode);
|
|
return 1;
|
|
}
|
|
|
|
static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id)
|
|
{
|
|
DRM_INFO("Skipping forced modeset for %s\n", id->ident);
|
|
return 1;
|
|
}
|
|
|
|
/* The GPU hangs up on these systems if modeset is performed on LID open */
|
|
static const struct dmi_system_id intel_no_modeset_on_lid[] = {
|
|
{
|
|
.callback = intel_no_modeset_on_lid_dmi_callback,
|
|
.ident = "Toshiba Tecra A11",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"),
|
|
},
|
|
},
|
|
|
|
{ } /* terminating entry */
|
|
};
|
|
|
|
/*
|
|
* Lid events. Note the use of 'modeset_on_lid':
|
|
* - we set it on lid close, and reset it on open
|
|
* - we use it as a "only once" bit (ie we ignore
|
|
* duplicate events where it was already properly
|
|
* set/reset)
|
|
* - the suspend/resume paths will also set it to
|
|
* zero, since they restore the mode ("lid open").
|
|
*/
|
|
static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
|
|
void *unused)
|
|
{
|
|
struct intel_lvds_connector *lvds_connector =
|
|
container_of(nb, struct intel_lvds_connector, lid_notifier);
|
|
struct drm_connector *connector = &lvds_connector->base.base;
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
|
|
return NOTIFY_OK;
|
|
|
|
/*
|
|
* check and update the status of LVDS connector after receiving
|
|
* the LID nofication event.
|
|
*/
|
|
connector->status = connector->funcs->detect(connector, false);
|
|
|
|
/* Don't force modeset on machines where it causes a GPU lockup */
|
|
if (dmi_check_system(intel_no_modeset_on_lid))
|
|
return NOTIFY_OK;
|
|
if (!acpi_lid_open()) {
|
|
dev_priv->modeset_on_lid = 1;
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
if (!dev_priv->modeset_on_lid)
|
|
return NOTIFY_OK;
|
|
|
|
dev_priv->modeset_on_lid = 0;
|
|
|
|
mutex_lock(&dev->mode_config.mutex);
|
|
intel_modeset_setup_hw_state(dev, true);
|
|
mutex_unlock(&dev->mode_config.mutex);
|
|
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
/**
|
|
* intel_lvds_destroy - unregister and free LVDS structures
|
|
* @connector: connector to free
|
|
*
|
|
* Unregister the DDC bus for this connector then free the driver private
|
|
* structure.
|
|
*/
|
|
static void intel_lvds_destroy(struct drm_connector *connector)
|
|
{
|
|
struct intel_lvds_connector *lvds_connector =
|
|
to_lvds_connector(connector);
|
|
|
|
if (lvds_connector->lid_notifier.notifier_call)
|
|
acpi_lid_notifier_unregister(&lvds_connector->lid_notifier);
|
|
|
|
if (!IS_ERR_OR_NULL(lvds_connector->base.edid))
|
|
kfree(lvds_connector->base.edid);
|
|
|
|
intel_panel_destroy_backlight(connector->dev);
|
|
intel_panel_fini(&lvds_connector->base.panel);
|
|
|
|
drm_sysfs_connector_remove(connector);
|
|
drm_connector_cleanup(connector);
|
|
kfree(connector);
|
|
}
|
|
|
|
static int intel_lvds_set_property(struct drm_connector *connector,
|
|
struct drm_property *property,
|
|
uint64_t value)
|
|
{
|
|
struct intel_connector *intel_connector = to_intel_connector(connector);
|
|
struct drm_device *dev = connector->dev;
|
|
|
|
if (property == dev->mode_config.scaling_mode_property) {
|
|
struct drm_crtc *crtc;
|
|
|
|
if (value == DRM_MODE_SCALE_NONE) {
|
|
DRM_DEBUG_KMS("no scaling not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (intel_connector->panel.fitting_mode == value) {
|
|
/* the LVDS scaling property is not changed */
|
|
return 0;
|
|
}
|
|
intel_connector->panel.fitting_mode = value;
|
|
|
|
crtc = intel_attached_encoder(connector)->base.crtc;
|
|
if (crtc && crtc->enabled) {
|
|
/*
|
|
* If the CRTC is enabled, the display will be changed
|
|
* according to the new panel fitting mode.
|
|
*/
|
|
intel_set_mode(crtc, &crtc->mode,
|
|
crtc->x, crtc->y, crtc->fb);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_encoder_helper_funcs intel_lvds_helper_funcs = {
|
|
.mode_fixup = intel_lvds_mode_fixup,
|
|
.mode_set = intel_lvds_mode_set,
|
|
.disable = intel_encoder_noop,
|
|
};
|
|
|
|
static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = {
|
|
.get_modes = intel_lvds_get_modes,
|
|
.mode_valid = intel_lvds_mode_valid,
|
|
.best_encoder = intel_best_encoder,
|
|
};
|
|
|
|
static const struct drm_connector_funcs intel_lvds_connector_funcs = {
|
|
.dpms = intel_connector_dpms,
|
|
.detect = intel_lvds_detect,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.set_property = intel_lvds_set_property,
|
|
.destroy = intel_lvds_destroy,
|
|
};
|
|
|
|
static const struct drm_encoder_funcs intel_lvds_enc_funcs = {
|
|
.destroy = intel_encoder_destroy,
|
|
};
|
|
|
|
static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id)
|
|
{
|
|
DRM_INFO("Skipping LVDS initialization for %s\n", id->ident);
|
|
return 1;
|
|
}
|
|
|
|
/* These systems claim to have LVDS, but really don't */
|
|
static const struct dmi_system_id intel_no_lvds[] = {
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Apple Mac Mini (Core series)",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Apple Mac Mini (Core 2 series)",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "MSI IM-945GSE-A",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "A9830IMS"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Dell Studio Hybrid",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Studio Hybrid 140g"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Dell OptiPlex FX170",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex FX170"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "AOpen Mini PC",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "AOpen"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "i965GMx-IF"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "AOpen Mini PC MP915",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "AOpen i915GMm-HFS",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "AOpen i45GMx-I",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "i45GMx-I"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Aopen i945GTt-VFA",
|
|
.matches = {
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Clientron U800",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "U800"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Clientron E830",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Asus EeeBox PC EB1007",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Asus AT5NM10T-I",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
|
|
DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Hewlett-Packard HP t5740e Thin Client",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "HP t5740e Thin Client"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Hewlett-Packard t5745",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Hewlett-Packard st5747",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "MSI Wind Box DC500",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "MS-7469"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "ZOTAC ZBOXSD-ID12/ID13",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "ZOTAC"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "ZBOXSD-ID12/ID13"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Gigabyte GA-D525TUD",
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
|
|
DMI_MATCH(DMI_BOARD_NAME, "D525TUD"),
|
|
},
|
|
},
|
|
{
|
|
.callback = intel_no_lvds_dmi_callback,
|
|
.ident = "Supermicro X7SPA-H",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"),
|
|
},
|
|
},
|
|
|
|
{ } /* terminating entry */
|
|
};
|
|
|
|
/**
|
|
* intel_find_lvds_downclock - find the reduced downclock for LVDS in EDID
|
|
* @dev: drm device
|
|
* @connector: LVDS connector
|
|
*
|
|
* Find the reduced downclock for LVDS in EDID.
|
|
*/
|
|
static void intel_find_lvds_downclock(struct drm_device *dev,
|
|
struct drm_display_mode *fixed_mode,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_display_mode *scan;
|
|
int temp_downclock;
|
|
|
|
temp_downclock = fixed_mode->clock;
|
|
list_for_each_entry(scan, &connector->probed_modes, head) {
|
|
/*
|
|
* If one mode has the same resolution with the fixed_panel
|
|
* mode while they have the different refresh rate, it means
|
|
* that the reduced downclock is found for the LVDS. In such
|
|
* case we can set the different FPx0/1 to dynamically select
|
|
* between low and high frequency.
|
|
*/
|
|
if (scan->hdisplay == fixed_mode->hdisplay &&
|
|
scan->hsync_start == fixed_mode->hsync_start &&
|
|
scan->hsync_end == fixed_mode->hsync_end &&
|
|
scan->htotal == fixed_mode->htotal &&
|
|
scan->vdisplay == fixed_mode->vdisplay &&
|
|
scan->vsync_start == fixed_mode->vsync_start &&
|
|
scan->vsync_end == fixed_mode->vsync_end &&
|
|
scan->vtotal == fixed_mode->vtotal) {
|
|
if (scan->clock < temp_downclock) {
|
|
/*
|
|
* The downclock is already found. But we
|
|
* expect to find the lower downclock.
|
|
*/
|
|
temp_downclock = scan->clock;
|
|
}
|
|
}
|
|
}
|
|
if (temp_downclock < fixed_mode->clock && i915_lvds_downclock) {
|
|
/* We found the downclock for LVDS. */
|
|
dev_priv->lvds_downclock_avail = 1;
|
|
dev_priv->lvds_downclock = temp_downclock;
|
|
DRM_DEBUG_KMS("LVDS downclock is found in EDID. "
|
|
"Normal clock %dKhz, downclock %dKhz\n",
|
|
fixed_mode->clock, temp_downclock);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Enumerate the child dev array parsed from VBT to check whether
|
|
* the LVDS is present.
|
|
* If it is present, return 1.
|
|
* If it is not present, return false.
|
|
* If no child dev is parsed from VBT, it assumes that the LVDS is present.
|
|
*/
|
|
static bool lvds_is_present_in_vbt(struct drm_device *dev,
|
|
u8 *i2c_pin)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
int i;
|
|
|
|
if (!dev_priv->child_dev_num)
|
|
return true;
|
|
|
|
for (i = 0; i < dev_priv->child_dev_num; i++) {
|
|
struct child_device_config *child = dev_priv->child_dev + i;
|
|
|
|
/* If the device type is not LFP, continue.
|
|
* We have to check both the new identifiers as well as the
|
|
* old for compatibility with some BIOSes.
|
|
*/
|
|
if (child->device_type != DEVICE_TYPE_INT_LFP &&
|
|
child->device_type != DEVICE_TYPE_LFP)
|
|
continue;
|
|
|
|
if (intel_gmbus_is_port_valid(child->i2c_pin))
|
|
*i2c_pin = child->i2c_pin;
|
|
|
|
/* However, we cannot trust the BIOS writers to populate
|
|
* the VBT correctly. Since LVDS requires additional
|
|
* information from AIM blocks, a non-zero addin offset is
|
|
* a good indicator that the LVDS is actually present.
|
|
*/
|
|
if (child->addin_offset)
|
|
return true;
|
|
|
|
/* But even then some BIOS writers perform some black magic
|
|
* and instantiate the device without reference to any
|
|
* additional data. Trust that if the VBT was written into
|
|
* the OpRegion then they have validated the LVDS's existence.
|
|
*/
|
|
if (dev_priv->opregion.vbt)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool intel_lvds_supported(struct drm_device *dev)
|
|
{
|
|
/* With the introduction of the PCH we gained a dedicated
|
|
* LVDS presence pin, use it. */
|
|
if (HAS_PCH_SPLIT(dev))
|
|
return true;
|
|
|
|
/* Otherwise LVDS was only attached to mobile products,
|
|
* except for the inglorious 830gm */
|
|
return IS_MOBILE(dev) && !IS_I830(dev);
|
|
}
|
|
|
|
/**
|
|
* intel_lvds_init - setup LVDS connectors on this device
|
|
* @dev: drm device
|
|
*
|
|
* Create the connector, register the LVDS DDC bus, and try to figure out what
|
|
* modes we can display on the LVDS panel (if present).
|
|
*/
|
|
bool intel_lvds_init(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_lvds_encoder *lvds_encoder;
|
|
struct intel_encoder *intel_encoder;
|
|
struct intel_lvds_connector *lvds_connector;
|
|
struct intel_connector *intel_connector;
|
|
struct drm_connector *connector;
|
|
struct drm_encoder *encoder;
|
|
struct drm_display_mode *scan; /* *modes, *bios_mode; */
|
|
struct drm_display_mode *fixed_mode = NULL;
|
|
struct edid *edid;
|
|
struct drm_crtc *crtc;
|
|
u32 lvds;
|
|
int pipe;
|
|
u8 pin;
|
|
|
|
if (!intel_lvds_supported(dev))
|
|
return false;
|
|
|
|
/* Skip init on machines we know falsely report LVDS */
|
|
if (dmi_check_system(intel_no_lvds))
|
|
return false;
|
|
|
|
pin = GMBUS_PORT_PANEL;
|
|
if (!lvds_is_present_in_vbt(dev, &pin)) {
|
|
DRM_DEBUG_KMS("LVDS is not present in VBT\n");
|
|
return false;
|
|
}
|
|
|
|
if (HAS_PCH_SPLIT(dev)) {
|
|
if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0)
|
|
return false;
|
|
if (dev_priv->edp.support) {
|
|
DRM_DEBUG_KMS("disable LVDS for eDP support\n");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
lvds_encoder = kzalloc(sizeof(struct intel_lvds_encoder), GFP_KERNEL);
|
|
if (!lvds_encoder)
|
|
return false;
|
|
|
|
lvds_connector = kzalloc(sizeof(struct intel_lvds_connector), GFP_KERNEL);
|
|
if (!lvds_connector) {
|
|
kfree(lvds_encoder);
|
|
return false;
|
|
}
|
|
|
|
lvds_encoder->attached_connector = lvds_connector;
|
|
|
|
if (!HAS_PCH_SPLIT(dev)) {
|
|
lvds_encoder->pfit_control = I915_READ(PFIT_CONTROL);
|
|
}
|
|
|
|
intel_encoder = &lvds_encoder->base;
|
|
encoder = &intel_encoder->base;
|
|
intel_connector = &lvds_connector->base;
|
|
connector = &intel_connector->base;
|
|
drm_connector_init(dev, &intel_connector->base, &intel_lvds_connector_funcs,
|
|
DRM_MODE_CONNECTOR_LVDS);
|
|
|
|
drm_encoder_init(dev, &intel_encoder->base, &intel_lvds_enc_funcs,
|
|
DRM_MODE_ENCODER_LVDS);
|
|
|
|
intel_encoder->enable = intel_enable_lvds;
|
|
intel_encoder->disable = intel_disable_lvds;
|
|
intel_encoder->get_hw_state = intel_lvds_get_hw_state;
|
|
intel_connector->get_hw_state = intel_connector_get_hw_state;
|
|
|
|
intel_connector_attach_encoder(intel_connector, intel_encoder);
|
|
intel_encoder->type = INTEL_OUTPUT_LVDS;
|
|
|
|
intel_encoder->cloneable = false;
|
|
if (HAS_PCH_SPLIT(dev))
|
|
intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
|
|
else if (IS_GEN4(dev))
|
|
intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
|
|
else
|
|
intel_encoder->crtc_mask = (1 << 1);
|
|
|
|
drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs);
|
|
drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
|
|
connector->display_info.subpixel_order = SubPixelHorizontalRGB;
|
|
connector->interlace_allowed = false;
|
|
connector->doublescan_allowed = false;
|
|
|
|
/* create the scaling mode property */
|
|
drm_mode_create_scaling_mode_property(dev);
|
|
drm_object_attach_property(&connector->base,
|
|
dev->mode_config.scaling_mode_property,
|
|
DRM_MODE_SCALE_ASPECT);
|
|
intel_connector->panel.fitting_mode = DRM_MODE_SCALE_ASPECT;
|
|
/*
|
|
* LVDS discovery:
|
|
* 1) check for EDID on DDC
|
|
* 2) check for VBT data
|
|
* 3) check to see if LVDS is already on
|
|
* if none of the above, no panel
|
|
* 4) make sure lid is open
|
|
* if closed, act like it's not there for now
|
|
*/
|
|
|
|
/*
|
|
* Attempt to get the fixed panel mode from DDC. Assume that the
|
|
* preferred mode is the right one.
|
|
*/
|
|
edid = drm_get_edid(connector, intel_gmbus_get_adapter(dev_priv, pin));
|
|
if (edid) {
|
|
if (drm_add_edid_modes(connector, edid)) {
|
|
drm_mode_connector_update_edid_property(connector,
|
|
edid);
|
|
} else {
|
|
kfree(edid);
|
|
edid = ERR_PTR(-EINVAL);
|
|
}
|
|
} else {
|
|
edid = ERR_PTR(-ENOENT);
|
|
}
|
|
lvds_connector->base.edid = edid;
|
|
|
|
if (IS_ERR_OR_NULL(edid)) {
|
|
/* Didn't get an EDID, so
|
|
* Set wide sync ranges so we get all modes
|
|
* handed to valid_mode for checking
|
|
*/
|
|
connector->display_info.min_vfreq = 0;
|
|
connector->display_info.max_vfreq = 200;
|
|
connector->display_info.min_hfreq = 0;
|
|
connector->display_info.max_hfreq = 200;
|
|
}
|
|
|
|
list_for_each_entry(scan, &connector->probed_modes, head) {
|
|
if (scan->type & DRM_MODE_TYPE_PREFERRED) {
|
|
DRM_DEBUG_KMS("using preferred mode from EDID: ");
|
|
drm_mode_debug_printmodeline(scan);
|
|
|
|
fixed_mode = drm_mode_duplicate(dev, scan);
|
|
if (fixed_mode) {
|
|
intel_find_lvds_downclock(dev, fixed_mode,
|
|
connector);
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Failed to get EDID, what about VBT? */
|
|
if (dev_priv->lfp_lvds_vbt_mode) {
|
|
DRM_DEBUG_KMS("using mode from VBT: ");
|
|
drm_mode_debug_printmodeline(dev_priv->lfp_lvds_vbt_mode);
|
|
|
|
fixed_mode = drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
|
|
if (fixed_mode) {
|
|
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we didn't get EDID, try checking if the panel is already turned
|
|
* on. If so, assume that whatever is currently programmed is the
|
|
* correct mode.
|
|
*/
|
|
|
|
/* Ironlake: FIXME if still fail, not try pipe mode now */
|
|
if (HAS_PCH_SPLIT(dev))
|
|
goto failed;
|
|
|
|
lvds = I915_READ(LVDS);
|
|
pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
|
|
crtc = intel_get_crtc_for_pipe(dev, pipe);
|
|
|
|
if (crtc && (lvds & LVDS_PORT_EN)) {
|
|
fixed_mode = intel_crtc_mode_get(dev, crtc);
|
|
if (fixed_mode) {
|
|
DRM_DEBUG_KMS("using current (BIOS) mode: ");
|
|
drm_mode_debug_printmodeline(fixed_mode);
|
|
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* If we still don't have a mode after all that, give up. */
|
|
if (!fixed_mode)
|
|
goto failed;
|
|
|
|
out:
|
|
/*
|
|
* Unlock registers and just
|
|
* leave them unlocked
|
|
*/
|
|
if (HAS_PCH_SPLIT(dev)) {
|
|
I915_WRITE(PCH_PP_CONTROL,
|
|
I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS);
|
|
} else {
|
|
I915_WRITE(PP_CONTROL,
|
|
I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS);
|
|
}
|
|
lvds_connector->lid_notifier.notifier_call = intel_lid_notify;
|
|
if (acpi_lid_notifier_register(&lvds_connector->lid_notifier)) {
|
|
DRM_DEBUG_KMS("lid notifier registration failed\n");
|
|
lvds_connector->lid_notifier.notifier_call = NULL;
|
|
}
|
|
drm_sysfs_connector_add(connector);
|
|
|
|
intel_panel_init(&intel_connector->panel, fixed_mode);
|
|
intel_panel_setup_backlight(connector);
|
|
|
|
return true;
|
|
|
|
failed:
|
|
DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
|
|
drm_connector_cleanup(connector);
|
|
drm_encoder_cleanup(encoder);
|
|
if (fixed_mode)
|
|
drm_mode_destroy(dev, fixed_mode);
|
|
kfree(lvds_encoder);
|
|
kfree(lvds_connector);
|
|
return false;
|
|
}
|