cregit-Linux how code gets into the kernel

Release 4.7 drivers/gpu/drm/i915/intel_lvds.c

/*
 * 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 <linux/vga_switcheroo.h>
#include <drm/drmP.h>
#include <drm/drm_atomic_helper.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;
	
i915_reg_t reg;
	
u32 a3_power;

	
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); }

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static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *connector) { return container_of(connector, struct intel_lvds_connector, base.base); }

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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); enum intel_display_power_domain power_domain; u32 tmp; bool ret; power_domain = intel_display_port_power_domain(encoder); if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) return false; ret = false; tmp = I915_READ(lvds_encoder->reg); if (!(tmp & LVDS_PORT_EN)) goto out; if (HAS_PCH_CPT(dev)) *pipe = PORT_TO_PIPE_CPT(tmp); else *pipe = PORT_TO_PIPE(tmp); ret = true; out: intel_display_power_put(dev_priv, power_domain); return ret; }

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Total144100.00%4100.00%


static void intel_lvds_get_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) { 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, flags = 0; tmp = I915_READ(lvds_encoder->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->base.adjusted_mode.flags |= flags; if (INTEL_INFO(dev)->gen < 5) pipe_config->gmch_pfit.lvds_border_bits = tmp & LVDS_BORDER_ENABLE; /* gen2/3 store dither state in pfit control, needs to match */ if (INTEL_INFO(dev)->gen < 4) { tmp = I915_READ(PFIT_CONTROL); pipe_config->gmch_pfit.control |= tmp & PANEL_8TO6_DITHER_ENABLE; } pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock; }

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ander conselvan de oliveiraander conselvan de oliveira52.96%222.22%
damien lespiaudamien lespiau10.59%111.11%
Total169100.00%9100.00%


static void intel_pre_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 *crtc = to_intel_crtc(encoder->base.crtc); const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; int pipe = crtc->pipe; u32 temp; if (HAS_PCH_SPLIT(dev)) { assert_fdi_rx_pll_disabled(dev_priv, pipe); assert_shared_dpll_disabled(dev_priv, crtc->config->shared_dpll); } else { assert_pll_disabled(dev_priv, pipe); } 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 |= 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. For now, let's just maintain the * value we got from the BIOS. */ temp &= ~LVDS_A3_POWER_MASK; temp |= lvds_encoder->a3_power; /* 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 (crtc->config->dither && crtc->config->pipe_bpp == 18) temp |= LVDS_ENABLE_DITHER; else temp &= ~LVDS_ENABLE_DITHER; } temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) temp |= LVDS_HSYNC_POLARITY; if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) temp |= LVDS_VSYNC_POLARITY; I915_WRITE(lvds_encoder->reg, temp); }

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ville syrjalaville syrjala82.56%18.33%
Total313100.00%12100.00%

/** * 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_connector *intel_connector = &lvds_encoder->attached_connector->base; struct drm_i915_private *dev_priv = dev->dev_private; i915_reg_t 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(intel_connector); }

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keith packardkeith packard3221.05%17.14%
daniel vetterdaniel vetter2919.08%321.43%
zhenyu wangzhenyu wang2113.82%17.14%
chris wilsonchris wilson159.87%321.43%
jani nikulajani nikula31.97%17.14%
eric anholteric anholt10.66%17.14%
ville syrjalaville syrjala10.66%17.14%
Total152100.00%14100.00%


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; i915_reg_t 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(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); }

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daniel vetterdaniel vetter2316.79%220.00%
keith packardkeith packard107.30%110.00%
jani nikulajani nikula32.19%110.00%
zhenyu wangzhenyu wang21.46%110.00%
ville syrjalaville syrjala10.73%110.00%
Total137100.00%10100.00%


static void gmch_disable_lvds(struct intel_encoder *encoder) { struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); struct intel_connector *intel_connector = &lvds_encoder->attached_connector->base; intel_panel_disable_backlight(intel_connector); intel_disable_lvds(encoder); }

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static void pch_disable_lvds(struct intel_encoder *encoder) { struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); struct intel_connector *intel_connector = &lvds_encoder->attached_connector->base; intel_panel_disable_backlight(intel_connector); }

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static void pch_post_disable_lvds(struct intel_encoder *encoder) { intel_disable_lvds(encoder); }

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static enum drm_mode_status 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; int max_pixclk = to_i915(connector->dev)->max_dotclk_freq; if (mode->hdisplay > fixed_mode->hdisplay) return MODE_PANEL; if (mode->vdisplay > fixed_mode->vdisplay) return MODE_PANEL; if (fixed_mode->clock > max_pixclk) return MODE_CLOCK_HIGH; return MODE_OK; }

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chris wilsonchris wilson33.33%120.00%
damien lespiaudamien lespiau22.22%120.00%
Total90100.00%5100.00%


static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder, struct intel_crtc_state *pipe_config) { struct drm_device *dev = intel_encoder->base.dev; 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->base.adjusted_mode; struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->base.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 (lvds_encoder->a3_power == 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); } else { intel_gmch_panel_fitting(intel_crtc, pipe_config, intel_connector->panel.fitting_mode); } /* * 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; }

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/** * 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; DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, connector->name); status = intel_panel_detect(dev); if (status != connector_status_unknown) return status; return connector_status_connected; }

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/** * 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; }

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yakui zhaoyakui zhao22.13%111.11%
Total94100.00%9100.00%


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; }

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/* 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; /* * Some old platform's BIOS love to wreak havoc while the lid is closed. * We try to detect this here and undo any damage. The split for PCH * platforms is rather conservative and a bit arbitrary expect that on * those platforms VGA disabling requires actual legacy VGA I/O access, * and as part of the cleanup in the hw state restore we also redisable * the vga plane. */ if (!HAS_PCH_SPLIT(dev)) intel_display_resume(dev); dev_priv->modeset_restore = MODESET_DONE; exit: mutex_unlock(&dev_priv->modeset_restore_lock); return NOTIFY_OK; }

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yakui zhaoyakui zhao1910.38%18.33%
alex williamsonalex williamson116.01%18.33%
linus torvaldslinus torvalds105.46%18.33%
daniel vetterdaniel vetter94.92%18.33%
thomas baechlerthomas baechler84.37%18.33%
chris wilsonchris wilson21.09%216.67%
maarten lankhorstmaarten lankhorst10.55%18.33%
Total183100.00%12100.00%

/** * 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_connector_cleanup(connector); kfree(connector); }

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matthew garrettmatthew garrett22.56%116.67%
Total78100.00%6100.00%


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->state->enable) { /* * If the CRTC is enabled, the display will be changed * according to the new panel fitting mode. */ intel_crtc_restore_mode(crtc); } } return 0; }

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yakui zhaoyakui zhao7155.47%112.50%
jesse barnesjesse barnes2418.75%225.00%
jani nikulajani nikula2015.62%225.00%
chris wilsonchris wilson107.81%225.00%
matt ropermatt roper32.34%112.50%
Total128100.00%8100.00%

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 = drm_atomic_helper_connector_dpms, .detect = intel_lvds_detect, .fill_modes = drm_helper_probe_single_connector_modes, .set_property = intel_lvds_set_property, .atomic_get_property = intel_connector_atomic_get_property, .destroy = intel_lvds_destroy, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, }; static const struct drm_encoder_funcs intel_lvds_enc_funcs = { .destroy = intel_encoder_destroy, };
static int intel_no_lvds_dmi_callback(const struct dmi_system_id *id) { DRM_INFO("Skipping LVDS initialization for %s\n", id->ident); return 1; }

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daniel vetterdaniel vetter14.17%150.00%
Total24100.00%2100.00%

/* 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 D410PT", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), DMI_MATCH(DMI_BOARD_NAME, "D410PT"), }, }, { .callback = intel_no_lvds_dmi_callback, .ident = "Intel D425KT", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"), }, }, { .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 */ };
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; }

Contributors

PersonTokensPropCommitsCommitProp
daniel vetterdaniel vetter24100.00%1100.00%
Total24100.00%1100.00%

static const struct dmi_system_id intel_dual_link_lvds[] = { { .callback = intel_dual_link_lvds_callback, .ident = "Apple MacBook Pro 15\" (2010)", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro6,2"), }, }, { .callback = intel_dual_link_lvds_callback, .ident = "Apple MacBook Pro 15\" (2011)", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), }, }, { .callback = intel_dual_link_lvds_callback, .ident = "Apple MacBook Pro 15\" (2012)", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,1"), }, }, { } /* terminating entry */ };
bool intel_is_dual_link_lvds(struct drm_device *dev) { struct intel_encoder *encoder; struct intel_lvds_encoder *lvds_encoder; for_each_intel_encoder(dev, encoder) { if (encoder->type == INTEL_OUTPUT_LVDS) { lvds_encoder = to_lvds_encoder(&encoder->base); return lvds_encoder->is_dual_link; } } return false; }

Contributors

PersonTokensPropCommitsCommitProp
daniel vetterdaniel vetter5394.64%266.67%
damien lespiaudamien lespiau35.36%133.33%
Total56100.00%3100.00%


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; /* single channel LVDS is limited to 112 MHz */ if (lvds_encoder->attached_connector->base.panel.fixed_mode->clock > 112999) return true; 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; }

Contributors

PersonTokensPropCommitsCommitProp
daniel vetterdaniel vetter9677.42%350.00%
lukas wunnerlukas wunner2016.13%116.67%
jani nikulajani nikula64.84%116.67%
rodrigo vivirodrigo vivi21.61%116.67%
Total124100.00%6100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
chris wilsonchris wilson3257.14%133.33%
paulo zanonipaulo zanoni1933.93%133.33%
jesse barnesjesse barnes58.93%133.33%
Total56100.00%3100.00%

/** * 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 drm_display_mode *downclock_mode = NULL; struct edid *edid; struct drm_crtc *crtc; i915_reg_t lvds_reg; u32 lvds; int pipe; u8 pin; /* * Unlock registers and just leave them unlocked. Do this before * checking quirk lists to avoid bogus WARNINGs. */ if (HAS_PCH_SPLIT(dev)) { I915_WRITE(PCH_PP_CONTROL, I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS); } else if (INTEL_INFO(dev_priv)->gen < 5) { I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); } if (!intel_lvds_supported(dev)) return; /* Skip init on machines we know falsely report LVDS */ if (dmi_check_system(intel_no_lvds)) return; if (HAS_PCH_SPLIT(dev)) lvds_reg = PCH_LVDS; else lvds_reg = LVDS; lvds = I915_READ(lvds_reg); if (HAS_PCH_SPLIT(dev)) { if ((lvds & LVDS_DETECTED) == 0) return; if (dev_priv->vbt.edp.support) { DRM_DEBUG_KMS("disable LVDS for eDP support\n"); return; } } pin = GMBUS_PIN_PANEL; if (!intel_bios_is_lvds_present(dev_priv, &pin)) { if ((lvds & LVDS_PORT_EN) == 0) { DRM_DEBUG_KMS("LVDS is not present in VBT\n"); return; } DRM_DEBUG_KMS("LVDS is not present in VBT, but enabled anyway\n"); } /* Set the Panel Power On/Off timings if uninitialized. */ if (INTEL_INFO(dev_priv)->gen < 5 && I915_READ(PP_ON_DELAYS) == 0 && I915_READ(PP_OFF_DELAYS) == 0) { /* Set T2 to 40ms and T5 to 200ms */ I915_WRITE(PP_ON_DELAYS, 0x019007d0); /* Set T3 to 35ms and Tx to 200ms */ I915_WRITE(PP_OFF_DELAYS, 0x015e07d0); DRM_DEBUG_KMS("Panel power timings uninitialized, setting defaults\n"); } lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL); if (!lvds_encoder) return; lvds_connector = kzalloc(sizeof(*lvds_connector), GFP_KERNEL); if (!lvds_connector) { kfree(lvds_encoder); return; } if (intel_connector_init(&lvds_connector->base) < 0) { kfree(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, NULL); intel_encoder->enable = intel_enable_lvds; intel_encoder->pre_enable = intel_pre_enable_lvds; intel_encoder->compute_config = intel_lvds_compute_config; if (HAS_PCH_SPLIT(dev_priv)) { intel_encoder->disable = pch_disable_lvds; intel_encoder->post_disable = pch_post_disable_lvds; } else { intel_encoder->disable = gmch_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->unregister = intel_connector_unregister; intel_connector_attach_encoder(intel_connector, intel_encoder); intel_encoder->type = INTEL_OUTPUT_LVDS; intel_encoder->cloneable = 0; 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_connector_helper_add(connector, &intel_lvds_connector_helper_funcs); connector->display_info.subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = false; connector->doublescan_allowed = false; lvds_encoder->reg = lvds_reg; /* 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. */ mutex_lock(&dev->mode_config.mutex); if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) edid = drm_get_edid_switcheroo(connector, intel_gmbus_get_adapter(dev_priv, pin)); else 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) 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; connector->display_info.width_mm = fixed_mode->width_mm; connector->display_info.height_mm = fixed_mode->height_mm; 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; 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: mutex_unlock(&dev->mode_config.mutex); intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); 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"); lvds_encoder->a3_power = lvds & LVDS_A3_POWER_MASK; 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_connector_register(connector); intel_panel_setup_backlight(connector, INVALID_PIPE); return; failed: mutex_unlock(&dev->mode_config.mutex); DRM_DEBUG_KMS("No LVDS modes found, disabling.\n"); drm_connector_cleanup(connector); drm_encoder_cleanup(encoder); kfree(lvds_encoder); kfree(lvds_connector); return; }

Contributors

PersonTokensPropCommitsCommitProp
jesse barnesjesse barnes34229.58%67.50%
chris wilsonchris wilson19616.96%1417.50%
daniel vetterdaniel vetter16614.36%1316.25%
ville syrjalaville syrjala806.92%78.75%
jani nikulajani nikula776.66%1012.50%
zhenyu wangzhenyu wang706.06%45.00%
imre deakimre deak675.80%33.75%
lukas wunnerlukas wunner353.03%33.75%
yakui zhaoyakui zhao282.42%45.00%
ander conselvan de oliveiraander conselvan de oliveira252.16%11.25%
ling maling ma141.21%22.50%
eric anholteric anholt100.87%22.50%
rodrigo vivirodrigo vivi70.61%11.25%
paulo zanonipaulo zanoni70.61%11.25%
vandana kannanvandana kannan70.61%11.25%
paul collinspaul collins50.43%11.25%
li shaohuali shaohua50.43%11.25%
matthew garrettmatthew garrett40.35%11.25%
daniel kurtzdaniel kurtz40.35%11.25%
jarod wilsonjarod wilson30.26%11.25%
rob clarkrob clark20.17%11.25%
adam jacksonadam jackson10.09%11.25%
thomas woodthomas wood10.09%11.25%
Total1156100.00%80100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
jesse barnesjesse barnes98621.96%169.04%
daniel vetterdaniel vetter90220.09%2715.25%
chris wilsonchris wilson54912.23%3117.51%
jani nikulajani nikula2635.86%158.47%
ville syrjalaville syrjala2194.88%105.65%
jarod wilsonjarod wilson1924.28%21.13%
yakui zhaoyakui zhao1493.32%63.39%
lukas wunnerlukas wunner1212.70%42.26%
zhenyu wangzhenyu wang932.07%42.26%
imre deakimre deak922.05%42.26%
thomas baechlerthomas baechler751.67%10.56%
paulo zanonipaulo zanoni651.45%31.69%
marc gariepymarc gariepy621.38%21.13%
rob pearcerob pearce621.38%10.56%
ander conselvan de oliveiraander conselvan de oliveira531.18%73.95%
rui zhangrui zhang501.11%10.56%
keith packardkeith packard481.07%31.69%
adam jacksonadam jackson320.71%21.13%
christian lamparterchristian lamparter310.69%10.56%
joel sassjoel sass310.69%10.56%
knut petersenknut petersen310.69%10.56%
stefan baderstefan bader310.69%10.56%
hans de goedehans de goede310.69%10.56%
tormod voldentormod volden310.69%10.56%
anisse astieranisse astier310.69%10.56%
pieterjan camerlynckpieterjan camerlynck310.69%10.56%
jan-benedict glawjan-benedict glaw290.65%10.56%
michael cousinmichael cousin240.53%10.56%
mika kaholamika kahola230.51%10.56%
calvin waltoncalvin walton220.49%10.56%
matt ropermatt roper160.36%31.69%
ling maling ma140.31%21.13%
alex williamsonalex williamson110.25%10.56%
eric anholteric anholt110.25%21.13%
linus torvaldslinus torvalds100.22%10.56%
sjoerd simonssjoerd simons90.20%10.56%
rodrigo vivirodrigo vivi90.20%10.56%
paul collinspaul collins80.18%10.56%
vandana kannanvandana kannan70.16%10.56%
damien lespiaudamien lespiau60.13%31.69%
matthew garrettmatthew garrett60.13%10.56%
li shaohuali shaohua50.11%10.56%
daniel kurtzdaniel kurtz40.09%10.56%
david howellsdavid howells40.09%10.56%
tejun heotejun heo30.07%10.56%
rob clarkrob clark20.04%10.56%
ben mesmanben mesman20.04%10.56%
maarten lankhorstmaarten lankhorst20.04%21.13%
thomas woodthomas wood10.02%10.56%
Total4489100.00%177100.00%
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