diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lvds.c | 1124 |
1 files changed, 0 insertions, 1124 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c deleted file mode 100644 index 021e8daa022d..000000000000 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ /dev/null @@ -1,1124 +0,0 @@ -/* - * Copyright © 2006-2007 Intel Corporation - * Copyright (c) 2006 Dave Airlie <airlied@linux.ie> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * Eric Anholt <eric@anholt.net> - * Dave Airlie <airlied@linux.ie> - * Jesse Barnes <jesse.barnes@intel.com> - */ - -#include <acpi/button.h> -#include <linux/dmi.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <drm/drmP.h> -#include <drm/drm_crtc.h> -#include <drm/drm_edid.h> -#include "intel_drv.h" -#include <drm/i915_drm.h> -#include "i915_drv.h" -#include <linux/acpi.h> - -/* Private structure for the integrated LVDS support */ -struct intel_lvds_connector { - struct intel_connector base; - - struct notifier_block lid_notifier; -}; - -struct intel_lvds_encoder { - struct intel_encoder base; - - bool is_dual_link; - u32 reg; - - struct intel_lvds_connector *attached_connector; -}; - -static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder) -{ - return container_of(encoder, struct intel_lvds_encoder, base.base); -} - -static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector) -{ - return container_of(connector, struct intel_lvds_connector, base.base); -} - -static bool intel_lvds_get_hw_state(struct intel_encoder *encoder, - enum pipe *pipe) -{ - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); - u32 tmp; - - tmp = I915_READ(lvds_encoder->reg); - - if (!(tmp & LVDS_PORT_EN)) - return false; - - if (HAS_PCH_CPT(dev)) - *pipe = PORT_TO_PIPE_CPT(tmp); - else - *pipe = PORT_TO_PIPE(tmp); - - return true; -} - -static void intel_lvds_get_config(struct intel_encoder *encoder, - struct intel_crtc_config *pipe_config) -{ - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 lvds_reg, tmp, flags = 0; - - if (HAS_PCH_SPLIT(dev)) - lvds_reg = PCH_LVDS; - else - lvds_reg = LVDS; - - tmp = I915_READ(lvds_reg); - if (tmp & LVDS_HSYNC_POLARITY) - flags |= DRM_MODE_FLAG_NHSYNC; - else - flags |= DRM_MODE_FLAG_PHSYNC; - if (tmp & LVDS_VSYNC_POLARITY) - flags |= DRM_MODE_FLAG_NVSYNC; - else - flags |= DRM_MODE_FLAG_PVSYNC; - - pipe_config->adjusted_mode.flags |= flags; -} - -/* The LVDS pin pair needs to be on before the DPLLs are enabled. - * This is an exception to the general rule that mode_set doesn't turn - * things on. - */ -static void intel_pre_pll_enable_lvds(struct intel_encoder *encoder) -{ - struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); - struct drm_display_mode *fixed_mode = - lvds_encoder->attached_connector->base.panel.fixed_mode; - int pipe = intel_crtc->pipe; - u32 temp; - - temp = I915_READ(lvds_encoder->reg); - temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; - - if (HAS_PCH_CPT(dev)) { - temp &= ~PORT_TRANS_SEL_MASK; - temp |= PORT_TRANS_SEL_CPT(pipe); - } else { - if (pipe == 1) { - temp |= LVDS_PIPEB_SELECT; - } else { - temp &= ~LVDS_PIPEB_SELECT; - } - } - - /* set the corresponsding LVDS_BORDER bit */ - temp &= ~LVDS_BORDER_ENABLE; - temp |= intel_crtc->config.gmch_pfit.lvds_border_bits; - /* Set the B0-B3 data pairs corresponding to whether we're going to - * set the DPLLs for dual-channel mode or not. - */ - if (lvds_encoder->is_dual_link) - temp |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP; - else - temp &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP); - - /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP) - * appropriately here, but we need to look more thoroughly into how - * panels behave in the two modes. - */ - - /* Set the dithering flag on LVDS as needed, note that there is no - * special lvds dither control bit on pch-split platforms, dithering is - * only controlled through the PIPECONF reg. */ - if (INTEL_INFO(dev)->gen == 4) { - /* Bspec wording suggests that LVDS port dithering only exists - * for 18bpp panels. */ - if (intel_crtc->config.dither && - intel_crtc->config.pipe_bpp == 18) - temp |= LVDS_ENABLE_DITHER; - else - temp &= ~LVDS_ENABLE_DITHER; - } - temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); - if (fixed_mode->flags & DRM_MODE_FLAG_NHSYNC) - temp |= LVDS_HSYNC_POLARITY; - if (fixed_mode->flags & DRM_MODE_FLAG_NVSYNC) - temp |= LVDS_VSYNC_POLARITY; - - I915_WRITE(lvds_encoder->reg, temp); -} - -/** - * Sets the power state for the panel. - */ -static void intel_enable_lvds(struct intel_encoder *encoder) -{ - struct drm_device *dev = encoder->base.dev; - struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); - struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); - struct drm_i915_private *dev_priv = dev->dev_private; - u32 ctl_reg, stat_reg; - - if (HAS_PCH_SPLIT(dev)) { - ctl_reg = PCH_PP_CONTROL; - stat_reg = PCH_PP_STATUS; - } else { - ctl_reg = PP_CONTROL; - stat_reg = PP_STATUS; - } - - I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) | LVDS_PORT_EN); - - I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON); - POSTING_READ(lvds_encoder->reg); - if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000)) - DRM_ERROR("timed out waiting for panel to power on\n"); - - intel_panel_enable_backlight(dev, intel_crtc->pipe); -} - -static void intel_disable_lvds(struct intel_encoder *encoder) -{ - struct drm_device *dev = encoder->base.dev; - struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); - struct drm_i915_private *dev_priv = dev->dev_private; - u32 ctl_reg, stat_reg; - - if (HAS_PCH_SPLIT(dev)) { - ctl_reg = PCH_PP_CONTROL; - stat_reg = PCH_PP_STATUS; - } else { - ctl_reg = PP_CONTROL; - stat_reg = PP_STATUS; - } - - intel_panel_disable_backlight(dev); - - I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON); - if (wait_for((I915_READ(stat_reg) & PP_ON) == 0, 1000)) - DRM_ERROR("timed out waiting for panel to power off\n"); - - I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) & ~LVDS_PORT_EN); - POSTING_READ(lvds_encoder->reg); -} - -static int intel_lvds_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct intel_connector *intel_connector = to_intel_connector(connector); - struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode; - - if (mode->hdisplay > fixed_mode->hdisplay) - return MODE_PANEL; - if (mode->vdisplay > fixed_mode->vdisplay) - return MODE_PANEL; - - return MODE_OK; -} - -static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder, - struct intel_crtc_config *pipe_config) -{ - struct drm_device *dev = intel_encoder->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_lvds_encoder *lvds_encoder = - to_lvds_encoder(&intel_encoder->base); - struct intel_connector *intel_connector = - &lvds_encoder->attached_connector->base; - struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; - struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc; - unsigned int lvds_bpp; - - /* Should never happen!! */ - if (INTEL_INFO(dev)->gen < 4 && intel_crtc->pipe == 0) { - DRM_ERROR("Can't support LVDS on pipe A\n"); - return false; - } - - if ((I915_READ(lvds_encoder->reg) & LVDS_A3_POWER_MASK) == - LVDS_A3_POWER_UP) - lvds_bpp = 8*3; - else - lvds_bpp = 6*3; - - if (lvds_bpp != pipe_config->pipe_bpp && !pipe_config->bw_constrained) { - DRM_DEBUG_KMS("forcing display bpp (was %d) to LVDS (%d)\n", - pipe_config->pipe_bpp, lvds_bpp); - pipe_config->pipe_bpp = lvds_bpp; - } - - /* - * We have timings from the BIOS for the panel, put them in - * to the adjusted mode. The CRTC will be set up for this mode, - * with the panel scaling set up to source from the H/VDisplay - * of the original mode. - */ - intel_fixed_panel_mode(intel_connector->panel.fixed_mode, - adjusted_mode); - - if (HAS_PCH_SPLIT(dev)) { - pipe_config->has_pch_encoder = true; - - intel_pch_panel_fitting(intel_crtc, pipe_config, - intel_connector->panel.fitting_mode); - return true; - } else { - intel_gmch_panel_fitting(intel_crtc, pipe_config, - intel_connector->panel.fitting_mode); - } - - drm_mode_set_crtcinfo(adjusted_mode, 0); - pipe_config->timings_set = true; - - /* - * XXX: It would be nice to support lower refresh rates on the - * panels to reduce power consumption, and perhaps match the - * user's requested refresh rate. - */ - - return true; -} - -static void intel_lvds_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - /* - * The LVDS pin pair will already have been turned on in the - * intel_crtc_mode_set since it has a large impact on the DPLL - * settings. - */ -} - -/** - * Detect the LVDS connection. - * - * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means - * connected and closed means disconnected. We also send hotplug events as - * needed, using lid status notification from the input layer. - */ -static enum drm_connector_status -intel_lvds_detect(struct drm_connector *connector, bool force) -{ - struct drm_device *dev = connector->dev; - enum drm_connector_status status; - - status = intel_panel_detect(dev); - if (status != connector_status_unknown) - return status; - - return connector_status_connected; -} - -/** - * Return the list of DDC modes if available, or the BIOS fixed mode otherwise. - */ -static int intel_lvds_get_modes(struct drm_connector *connector) -{ - struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector); - struct drm_device *dev = connector->dev; - struct drm_display_mode *mode; - - /* 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': - * - we set it to MODESET_ON_LID_OPEN on lid close, - * and set it to MODESET_DONE on open - * - we use it as a "only once" bit (ie we ignore - * duplicate events where it was already properly set) - * - the suspend/resume paths will set it to - * MODESET_SUSPENDED and ignore the lid open event, - * because 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; - - mutex_lock(&dev_priv->modeset_restore_lock); - if (dev_priv->modeset_restore == MODESET_SUSPENDED) - goto exit; - /* - * 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)) - goto exit; - if (!acpi_lid_open()) { - /* do modeset on next lid open event */ - dev_priv->modeset_restore = MODESET_ON_LID_OPEN; - goto exit; - } - - if (dev_priv->modeset_restore == MODESET_DONE) - goto exit; - - drm_modeset_lock_all(dev); - intel_modeset_setup_hw_state(dev, true); - drm_modeset_unlock_all(dev); - - dev_priv->modeset_restore = MODESET_DONE; - -exit: - mutex_unlock(&dev_priv->modeset_restore_lock); - 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_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_crtc_restore_mode(crtc); - } - } - - return 0; -} - -static const struct drm_encoder_helper_funcs intel_lvds_helper_funcs = { - .mode_set = intel_lvds_mode_set, -}; - -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 t5740", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, " t5740"), - }, - }, - { - .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 = "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"), - }, - }, - { - .callback = intel_no_lvds_dmi_callback, - .ident = "Fujitsu Esprimo Q900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), - DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"), - }, - }, - { - .callback = intel_no_lvds_dmi_callback, - .ident = "Intel D510MO", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "D510MO"), - }, - }, - { - .callback = intel_no_lvds_dmi_callback, - .ident = "Intel D525MW", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "D525MW"), - }, - }, - - { } /* 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->vbt.child_dev_num) - return true; - - for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { - struct child_device_config *child = dev_priv->vbt.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 int intel_dual_link_lvds_callback(const struct dmi_system_id *id) -{ - DRM_INFO("Forcing lvds to dual link mode on %s\n", id->ident); - return 1; -} - -static const struct dmi_system_id intel_dual_link_lvds[] = { - { - .callback = intel_dual_link_lvds_callback, - .ident = "Apple MacBook Pro (Core i5/i7 Series)", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), - }, - }, - { } /* terminating entry */ -}; - -bool intel_is_dual_link_lvds(struct drm_device *dev) -{ - struct intel_encoder *encoder; - struct intel_lvds_encoder *lvds_encoder; - - list_for_each_entry(encoder, &dev->mode_config.encoder_list, - base.head) { - if (encoder->type == INTEL_OUTPUT_LVDS) { - lvds_encoder = to_lvds_encoder(&encoder->base); - - return lvds_encoder->is_dual_link; - } - } - - return false; -} - -static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder) -{ - struct drm_device *dev = lvds_encoder->base.base.dev; - unsigned int val; - struct drm_i915_private *dev_priv = dev->dev_private; - - /* use the module option value if specified */ - if (i915_lvds_channel_mode > 0) - return i915_lvds_channel_mode == 2; - - if (dmi_check_system(intel_dual_link_lvds)) - return true; - - /* BIOS should set the proper LVDS register value at boot, but - * in reality, it doesn't set the value when the lid is closed; - * we need to check "the value to be set" in VBT when LVDS - * register is uninitialized. - */ - val = I915_READ(lvds_encoder->reg); - if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) - val = dev_priv->vbt.bios_lvds_val; - - return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP; -} - -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_IBX(dev) || HAS_PCH_CPT(dev)) - return true; - - /* Otherwise LVDS was only attached to mobile products, - * except for the inglorious 830gm */ - if (INTEL_INFO(dev)->gen <= 4 && IS_MOBILE(dev) && !IS_I830(dev)) - return true; - - return false; -} - -/** - * 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). - */ -void 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; - - /* Skip init on machines we know falsely report LVDS */ - if (dmi_check_system(intel_no_lvds)) - return; - - pin = GMBUS_PORT_PANEL; - if (!lvds_is_present_in_vbt(dev, &pin)) { - DRM_DEBUG_KMS("LVDS is not present in VBT\n"); - return; - } - - if (HAS_PCH_SPLIT(dev)) { - if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) - return; - if (dev_priv->vbt.edp_support) { - DRM_DEBUG_KMS("disable LVDS for eDP support\n"); - return; - } - } - - lvds_encoder = kzalloc(sizeof(struct intel_lvds_encoder), GFP_KERNEL); - if (!lvds_encoder) - return; - - lvds_connector = kzalloc(sizeof(struct intel_lvds_connector), GFP_KERNEL); - if (!lvds_connector) { - kfree(lvds_encoder); - return; - } - - lvds_encoder->attached_connector = lvds_connector; - - 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->pre_pll_enable = intel_pre_pll_enable_lvds; - intel_encoder->compute_config = intel_lvds_compute_config; - intel_encoder->disable = intel_disable_lvds; - intel_encoder->get_hw_state = intel_lvds_get_hw_state; - intel_encoder->get_config = intel_lvds_get_config; - 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; - - if (HAS_PCH_SPLIT(dev)) { - lvds_encoder->reg = PCH_LVDS; - } else { - lvds_encoder->reg = LVDS; - } - - /* 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->vbt.lfp_lvds_vbt_mode) { - DRM_DEBUG_KMS("using mode from VBT: "); - drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode); - - fixed_mode = drm_mode_duplicate(dev, dev_priv->vbt.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: - lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder); - DRM_DEBUG_KMS("detected %s-link lvds configuration\n", - lvds_encoder->is_dual_link ? "dual" : "single"); - - /* - * 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; - -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; -} |