Contributors: 58
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Ville Syrjälä |
700 |
16.66% |
60 |
23.81% |
| Daniel Vetter |
598 |
14.23% |
27 |
10.71% |
| Jarod Wilson |
535 |
12.74% |
2 |
0.79% |
| Imre Deak |
464 |
11.04% |
6 |
2.38% |
| Jesse Barnes |
449 |
10.69% |
7 |
2.78% |
| Jani Nikula |
374 |
8.90% |
38 |
15.08% |
| Chris Wilson |
261 |
6.21% |
26 |
10.32% |
| Maarten Lankhorst |
106 |
2.52% |
8 |
3.17% |
| Wambui Karuga |
65 |
1.55% |
1 |
0.40% |
| Lukas Wunner |
60 |
1.43% |
4 |
1.59% |
| Marc Gariepy |
51 |
1.21% |
2 |
0.79% |
| Paulo Zanoni |
40 |
0.95% |
3 |
1.19% |
| Yakui Zhao |
39 |
0.93% |
4 |
1.59% |
| Ander Conselvan de Oliveira |
38 |
0.90% |
9 |
3.57% |
| Tormod Volden |
36 |
0.86% |
1 |
0.40% |
| Christian Lamparter |
31 |
0.74% |
1 |
0.40% |
| Ondrej Zary |
31 |
0.74% |
1 |
0.40% |
| Zhenyu Wang |
30 |
0.71% |
3 |
1.19% |
| Knut Petersen |
24 |
0.57% |
1 |
0.40% |
| Mika Kahola |
23 |
0.55% |
1 |
0.40% |
| Rob Pearce |
20 |
0.48% |
1 |
0.40% |
| Keith Packard |
19 |
0.45% |
3 |
1.19% |
| Matt Roper |
17 |
0.40% |
3 |
1.19% |
| Hans de Goede |
17 |
0.40% |
1 |
0.40% |
| Tvrtko A. Ursulin |
15 |
0.36% |
2 |
0.79% |
| Andrzej Hajda |
13 |
0.31% |
1 |
0.40% |
| Paul Collins |
13 |
0.31% |
1 |
0.40% |
| Stefan Bader |
12 |
0.29% |
1 |
0.40% |
| Michael Cousin |
8 |
0.19% |
1 |
0.40% |
| Pankaj Bharadiya |
8 |
0.19% |
1 |
0.40% |
| Adam Jackson |
8 |
0.19% |
1 |
0.40% |
| Anisse Astier |
7 |
0.17% |
1 |
0.40% |
| Calvin Walton |
7 |
0.17% |
1 |
0.40% |
| Stephen Chandler Paul |
6 |
0.14% |
1 |
0.40% |
| Ankit Nautiyal |
6 |
0.14% |
1 |
0.40% |
| Ma Ling |
6 |
0.14% |
1 |
0.40% |
| Dave Airlie |
6 |
0.14% |
2 |
0.79% |
| Takashi Iwai |
5 |
0.12% |
2 |
0.79% |
| Shaohua Li |
5 |
0.12% |
1 |
0.40% |
| Dhinakaran Pandiyan |
5 |
0.12% |
1 |
0.40% |
| Shashank Sharma |
5 |
0.12% |
1 |
0.40% |
| Jouni Högander |
4 |
0.10% |
1 |
0.40% |
| Damien Lespiau |
4 |
0.10% |
3 |
1.19% |
| Lucas De Marchi |
3 |
0.07% |
1 |
0.40% |
| Daniel Kurtz |
3 |
0.07% |
1 |
0.40% |
| Joel Sass |
3 |
0.07% |
1 |
0.40% |
| Daniele Ceraolo Spurio |
3 |
0.07% |
1 |
0.40% |
| Florent Flament |
2 |
0.05% |
1 |
0.40% |
| Animesh Manna |
2 |
0.05% |
1 |
0.40% |
| David Howells |
2 |
0.05% |
1 |
0.40% |
| Pieterjan Camerlynck |
2 |
0.05% |
1 |
0.40% |
| Linus Torvalds (pre-git) |
2 |
0.05% |
1 |
0.40% |
| Ben Mesman |
2 |
0.05% |
1 |
0.40% |
| Rodrigo Vivi |
2 |
0.05% |
1 |
0.40% |
| Eric Anholt |
1 |
0.02% |
1 |
0.40% |
| Matthew Garrett |
1 |
0.02% |
1 |
0.40% |
| Rob Clark |
1 |
0.02% |
1 |
0.40% |
| Linus Torvalds |
1 |
0.02% |
1 |
0.40% |
| Total |
4201 |
|
252 |
|
/*
* 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/acpi.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_edid.h>
#include "i915_drv.h"
#include "i915_reg.h"
#include "intel_atomic.h"
#include "intel_backlight.h"
#include "intel_connector.h"
#include "intel_de.h"
#include "intel_display_types.h"
#include "intel_dpll.h"
#include "intel_fdi.h"
#include "intel_gmbus.h"
#include "intel_lvds.h"
#include "intel_lvds_regs.h"
#include "intel_panel.h"
#include "intel_pps_regs.h"
/* Private structure for the integrated LVDS support */
struct intel_lvds_pps {
/* 100us units */
int t1_t2;
int t3;
int t4;
int t5;
int tx;
int divider;
int port;
bool powerdown_on_reset;
};
struct intel_lvds_encoder {
struct intel_encoder base;
bool is_dual_link;
i915_reg_t reg;
u32 a3_power;
struct intel_lvds_pps init_pps;
u32 init_lvds_val;
struct intel_connector *attached_connector;
};
static struct intel_lvds_encoder *to_lvds_encoder(struct intel_encoder *encoder)
{
return container_of(encoder, struct intel_lvds_encoder, base);
}
bool intel_lvds_port_enabled(struct drm_i915_private *i915,
i915_reg_t lvds_reg, enum pipe *pipe)
{
u32 val;
val = intel_de_read(i915, lvds_reg);
/* asserts want to know the pipe even if the port is disabled */
if (HAS_PCH_CPT(i915))
*pipe = REG_FIELD_GET(LVDS_PIPE_SEL_MASK_CPT, val);
else
*pipe = REG_FIELD_GET(LVDS_PIPE_SEL_MASK, val);
return val & LVDS_PORT_EN;
}
static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
intel_wakeref_t wakeref;
bool ret;
wakeref = intel_display_power_get_if_enabled(i915, encoder->power_domain);
if (!wakeref)
return false;
ret = intel_lvds_port_enabled(i915, lvds_encoder->reg, pipe);
intel_display_power_put(i915, encoder->power_domain, wakeref);
return ret;
}
static void intel_lvds_get_config(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
u32 tmp, flags = 0;
crtc_state->output_types |= BIT(INTEL_OUTPUT_LVDS);
tmp = intel_de_read(dev_priv, 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;
crtc_state->hw.adjusted_mode.flags |= flags;
if (DISPLAY_VER(dev_priv) < 5)
crtc_state->gmch_pfit.lvds_border_bits =
tmp & LVDS_BORDER_ENABLE;
/* gen2/3 store dither state in pfit control, needs to match */
if (DISPLAY_VER(dev_priv) < 4) {
tmp = intel_de_read(dev_priv, PFIT_CONTROL(dev_priv));
crtc_state->gmch_pfit.control |= tmp & PFIT_PANEL_8TO6_DITHER_ENABLE;
}
crtc_state->hw.adjusted_mode.crtc_clock = crtc_state->port_clock;
}
static void intel_lvds_pps_get_hw_state(struct drm_i915_private *dev_priv,
struct intel_lvds_pps *pps)
{
u32 val;
pps->powerdown_on_reset = intel_de_read(dev_priv,
PP_CONTROL(dev_priv, 0)) & PANEL_POWER_RESET;
val = intel_de_read(dev_priv, PP_ON_DELAYS(dev_priv, 0));
pps->port = REG_FIELD_GET(PANEL_PORT_SELECT_MASK, val);
pps->t1_t2 = REG_FIELD_GET(PANEL_POWER_UP_DELAY_MASK, val);
pps->t5 = REG_FIELD_GET(PANEL_LIGHT_ON_DELAY_MASK, val);
val = intel_de_read(dev_priv, PP_OFF_DELAYS(dev_priv, 0));
pps->t3 = REG_FIELD_GET(PANEL_POWER_DOWN_DELAY_MASK, val);
pps->tx = REG_FIELD_GET(PANEL_LIGHT_OFF_DELAY_MASK, val);
val = intel_de_read(dev_priv, PP_DIVISOR(dev_priv, 0));
pps->divider = REG_FIELD_GET(PP_REFERENCE_DIVIDER_MASK, val);
val = REG_FIELD_GET(PANEL_POWER_CYCLE_DELAY_MASK, val);
/*
* Remove the BSpec specified +1 (100ms) offset that accounts for a
* too short power-cycle delay due to the asynchronous programming of
* the register.
*/
if (val)
val--;
/* Convert from 100ms to 100us units */
pps->t4 = val * 1000;
if (DISPLAY_VER(dev_priv) < 5 &&
pps->t1_t2 == 0 && pps->t5 == 0 && pps->t3 == 0 && pps->tx == 0) {
drm_dbg_kms(&dev_priv->drm,
"Panel power timings uninitialized, "
"setting defaults\n");
/* Set T2 to 40ms and T5 to 200ms in 100 usec units */
pps->t1_t2 = 40 * 10;
pps->t5 = 200 * 10;
/* Set T3 to 35ms and Tx to 200ms in 100 usec units */
pps->t3 = 35 * 10;
pps->tx = 200 * 10;
}
drm_dbg(&dev_priv->drm, "LVDS PPS:t1+t2 %d t3 %d t4 %d t5 %d tx %d "
"divider %d port %d powerdown_on_reset %d\n",
pps->t1_t2, pps->t3, pps->t4, pps->t5, pps->tx,
pps->divider, pps->port, pps->powerdown_on_reset);
}
static void intel_lvds_pps_init_hw(struct drm_i915_private *dev_priv,
struct intel_lvds_pps *pps)
{
u32 val;
val = intel_de_read(dev_priv, PP_CONTROL(dev_priv, 0));
drm_WARN_ON(&dev_priv->drm,
(val & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS);
if (pps->powerdown_on_reset)
val |= PANEL_POWER_RESET;
intel_de_write(dev_priv, PP_CONTROL(dev_priv, 0), val);
intel_de_write(dev_priv, PP_ON_DELAYS(dev_priv, 0),
REG_FIELD_PREP(PANEL_PORT_SELECT_MASK, pps->port) |
REG_FIELD_PREP(PANEL_POWER_UP_DELAY_MASK, pps->t1_t2) |
REG_FIELD_PREP(PANEL_LIGHT_ON_DELAY_MASK, pps->t5));
intel_de_write(dev_priv, PP_OFF_DELAYS(dev_priv, 0),
REG_FIELD_PREP(PANEL_POWER_DOWN_DELAY_MASK, pps->t3) |
REG_FIELD_PREP(PANEL_LIGHT_OFF_DELAY_MASK, pps->tx));
intel_de_write(dev_priv, PP_DIVISOR(dev_priv, 0),
REG_FIELD_PREP(PP_REFERENCE_DIVIDER_MASK, pps->divider) |
REG_FIELD_PREP(PANEL_POWER_CYCLE_DELAY_MASK, DIV_ROUND_UP(pps->t4, 1000) + 1));
}
static void intel_pre_enable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
{
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
enum pipe pipe = crtc->pipe;
u32 temp;
if (HAS_PCH_SPLIT(i915)) {
assert_fdi_rx_pll_disabled(i915, pipe);
assert_shared_dpll_disabled(i915, crtc_state->shared_dpll);
} else {
assert_pll_disabled(i915, pipe);
}
intel_lvds_pps_init_hw(i915, &lvds_encoder->init_pps);
temp = lvds_encoder->init_lvds_val;
temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
if (HAS_PCH_CPT(i915)) {
temp &= ~LVDS_PIPE_SEL_MASK_CPT;
temp |= LVDS_PIPE_SEL_CPT(pipe);
} else {
temp &= ~LVDS_PIPE_SEL_MASK;
temp |= LVDS_PIPE_SEL(pipe);
}
/* set the corresponsding LVDS_BORDER bit */
temp &= ~LVDS_BORDER_ENABLE;
temp |= crtc_state->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 TRANSCONF reg.
*/
if (DISPLAY_VER(i915) == 4) {
/*
* Bspec wording suggests that LVDS port dithering only exists
* for 18bpp panels.
*/
if (crtc_state->dither && crtc_state->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;
intel_de_write(i915, lvds_encoder->reg, temp);
}
/*
* Sets the power state for the panel.
*/
static void intel_enable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
{
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
intel_de_rmw(dev_priv, lvds_encoder->reg, 0, LVDS_PORT_EN);
intel_de_rmw(dev_priv, PP_CONTROL(dev_priv, 0), 0, PANEL_POWER_ON);
intel_de_posting_read(dev_priv, lvds_encoder->reg);
if (intel_de_wait_for_set(dev_priv, PP_STATUS(dev_priv, 0), PP_ON, 5000))
drm_err(&dev_priv->drm,
"timed out waiting for panel to power on\n");
intel_backlight_enable(crtc_state, conn_state);
}
static void intel_disable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
intel_de_rmw(dev_priv, PP_CONTROL(dev_priv, 0), PANEL_POWER_ON, 0);
if (intel_de_wait_for_clear(dev_priv, PP_STATUS(dev_priv, 0), PP_ON, 1000))
drm_err(&dev_priv->drm,
"timed out waiting for panel to power off\n");
intel_de_rmw(dev_priv, lvds_encoder->reg, LVDS_PORT_EN, 0);
intel_de_posting_read(dev_priv, lvds_encoder->reg);
}
static void gmch_disable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
intel_backlight_disable(old_conn_state);
intel_disable_lvds(state, encoder, old_crtc_state, old_conn_state);
}
static void pch_disable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
intel_backlight_disable(old_conn_state);
}
static void pch_post_disable_lvds(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
intel_disable_lvds(state, encoder, old_crtc_state, old_conn_state);
}
static void intel_lvds_shutdown(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
if (intel_de_wait_for_clear(dev_priv, PP_STATUS(dev_priv, 0), PP_CYCLE_DELAY_ACTIVE, 5000))
drm_err(&dev_priv->drm,
"timed out waiting for panel power cycle delay\n");
}
static enum drm_mode_status
intel_lvds_mode_valid(struct drm_connector *_connector,
struct drm_display_mode *mode)
{
struct intel_connector *connector = to_intel_connector(_connector);
struct drm_i915_private *i915 = to_i915(connector->base.dev);
const struct drm_display_mode *fixed_mode =
intel_panel_fixed_mode(connector, mode);
int max_pixclk = to_i915(connector->base.dev)->display.cdclk.max_dotclk_freq;
enum drm_mode_status status;
status = intel_cpu_transcoder_mode_valid(i915, mode);
if (status != MODE_OK)
return status;
status = intel_panel_mode_valid(connector, mode);
if (status != MODE_OK)
return status;
if (fixed_mode->clock > max_pixclk)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
static int intel_lvds_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
struct intel_connector *connector = lvds_encoder->attached_connector;
struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
unsigned int lvds_bpp;
int ret;
/* Should never happen!! */
if (DISPLAY_VER(i915) < 4 && crtc->pipe == 0) {
drm_err(&i915->drm, "Can't support LVDS on pipe A\n");
return -EINVAL;
}
if (HAS_PCH_SPLIT(i915)) {
crtc_state->has_pch_encoder = true;
if (!intel_fdi_compute_pipe_bpp(crtc_state))
return -EINVAL;
}
if (lvds_encoder->a3_power == LVDS_A3_POWER_UP)
lvds_bpp = 8*3;
else
lvds_bpp = 6*3;
/* TODO: Check crtc_state->max_link_bpp_x16 instead of bw_constrained */
if (lvds_bpp != crtc_state->pipe_bpp && !crtc_state->bw_constrained) {
drm_dbg_kms(&i915->drm,
"forcing display bpp (was %d) to LVDS (%d)\n",
crtc_state->pipe_bpp, lvds_bpp);
crtc_state->pipe_bpp = lvds_bpp;
}
crtc_state->sink_format = INTEL_OUTPUT_FORMAT_RGB;
crtc_state->output_format = INTEL_OUTPUT_FORMAT_RGB;
/*
* 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.
*/
ret = intel_panel_compute_config(connector, adjusted_mode);
if (ret)
return ret;
if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
return -EINVAL;
ret = intel_panel_fitting(crtc_state, conn_state);
if (ret)
return ret;
/*
* 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 0;
}
/*
* 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_connector *connector = to_intel_connector(_connector);
const struct drm_edid *fixed_edid = connector->panel.fixed_edid;
/* Use panel fixed edid if we have one */
if (!IS_ERR_OR_NULL(fixed_edid)) {
drm_edid_connector_update(&connector->base, fixed_edid);
return drm_edid_connector_add_modes(&connector->base);
}
return intel_panel_get_modes(connector);
}
static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs = {
.get_modes = intel_lvds_get_modes,
.mode_valid = intel_lvds_mode_valid,
.atomic_check = intel_digital_connector_atomic_check,
};
static const struct drm_connector_funcs intel_lvds_connector_funcs = {
.detect = intel_panel_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.atomic_get_property = intel_digital_connector_atomic_get_property,
.atomic_set_property = intel_digital_connector_atomic_set_property,
.late_register = intel_connector_register,
.early_unregister = intel_connector_unregister,
.destroy = intel_connector_destroy,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.atomic_duplicate_state = intel_digital_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;
}
/* 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"),
},
},
{
.callback = intel_no_lvds_dmi_callback,
.ident = "Radiant P845",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Radiant Systems Inc"),
DMI_MATCH(DMI_PRODUCT_NAME, "P845"),
},
},
{ } /* 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;
}
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 */
};
struct intel_encoder *intel_get_lvds_encoder(struct drm_i915_private *i915)
{
struct intel_encoder *encoder;
for_each_intel_encoder(&i915->drm, encoder) {
if (encoder->type == INTEL_OUTPUT_LVDS)
return encoder;
}
return NULL;
}
bool intel_is_dual_link_lvds(struct drm_i915_private *i915)
{
struct intel_encoder *encoder = intel_get_lvds_encoder(i915);
return encoder && to_lvds_encoder(encoder)->is_dual_link;
}
static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder)
{
struct drm_i915_private *i915 = to_i915(lvds_encoder->base.base.dev);
struct intel_connector *connector = lvds_encoder->attached_connector;
const struct drm_display_mode *fixed_mode =
intel_panel_preferred_fixed_mode(connector);
unsigned int val;
/* use the module option value if specified */
if (i915->display.params.lvds_channel_mode > 0)
return i915->display.params.lvds_channel_mode == 2;
/* single channel LVDS is limited to 112 MHz */
if (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 = intel_de_read(i915, lvds_encoder->reg);
if (HAS_PCH_CPT(i915))
val &= ~(LVDS_DETECTED | LVDS_PIPE_SEL_MASK_CPT);
else
val &= ~(LVDS_DETECTED | LVDS_PIPE_SEL_MASK);
if (val == 0)
val = connector->panel.vbt.bios_lvds_val;
return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP;
}
static void intel_lvds_add_properties(struct drm_connector *connector)
{
intel_attach_scaling_mode_property(connector);
}
/**
* intel_lvds_init - setup LVDS connectors on this device
* @i915: i915 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_i915_private *i915)
{
struct intel_lvds_encoder *lvds_encoder;
struct intel_connector *connector;
const struct drm_edid *drm_edid;
struct intel_encoder *encoder;
i915_reg_t lvds_reg;
u32 lvds;
u8 ddc_pin;
/* Skip init on machines we know falsely report LVDS */
if (dmi_check_system(intel_no_lvds)) {
drm_WARN(&i915->drm, !i915->display.vbt.int_lvds_support,
"Useless DMI match. Internal LVDS support disabled by VBT\n");
return;
}
if (!i915->display.vbt.int_lvds_support) {
drm_dbg_kms(&i915->drm,
"Internal LVDS support disabled by VBT\n");
return;
}
if (HAS_PCH_SPLIT(i915))
lvds_reg = PCH_LVDS;
else
lvds_reg = LVDS;
lvds = intel_de_read(i915, lvds_reg);
if (HAS_PCH_SPLIT(i915)) {
if ((lvds & LVDS_DETECTED) == 0)
return;
}
ddc_pin = GMBUS_PIN_PANEL;
if (!intel_bios_is_lvds_present(i915, &ddc_pin)) {
if ((lvds & LVDS_PORT_EN) == 0) {
drm_dbg_kms(&i915->drm,
"LVDS is not present in VBT\n");
return;
}
drm_dbg_kms(&i915->drm,
"LVDS is not present in VBT, but enabled anyway\n");
}
lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL);
if (!lvds_encoder)
return;
connector = intel_connector_alloc();
if (!connector) {
kfree(lvds_encoder);
return;
}
lvds_encoder->attached_connector = connector;
encoder = &lvds_encoder->base;
drm_connector_init_with_ddc(&i915->drm, &connector->base,
&intel_lvds_connector_funcs,
DRM_MODE_CONNECTOR_LVDS,
intel_gmbus_get_adapter(i915, ddc_pin));
drm_encoder_init(&i915->drm, &encoder->base, &intel_lvds_enc_funcs,
DRM_MODE_ENCODER_LVDS, "LVDS");
encoder->enable = intel_enable_lvds;
encoder->pre_enable = intel_pre_enable_lvds;
encoder->compute_config = intel_lvds_compute_config;
if (HAS_PCH_SPLIT(i915)) {
encoder->disable = pch_disable_lvds;
encoder->post_disable = pch_post_disable_lvds;
} else {
encoder->disable = gmch_disable_lvds;
}
encoder->get_hw_state = intel_lvds_get_hw_state;
encoder->get_config = intel_lvds_get_config;
encoder->update_pipe = intel_backlight_update;
encoder->shutdown = intel_lvds_shutdown;
connector->get_hw_state = intel_connector_get_hw_state;
intel_connector_attach_encoder(connector, encoder);
encoder->type = INTEL_OUTPUT_LVDS;
encoder->power_domain = POWER_DOMAIN_PORT_OTHER;
encoder->port = PORT_NONE;
encoder->cloneable = 0;
if (DISPLAY_VER(i915) < 4)
encoder->pipe_mask = BIT(PIPE_B);
else
encoder->pipe_mask = ~0;
drm_connector_helper_add(&connector->base, &intel_lvds_connector_helper_funcs);
connector->base.display_info.subpixel_order = SubPixelHorizontalRGB;
lvds_encoder->reg = lvds_reg;
intel_lvds_add_properties(&connector->base);
intel_lvds_pps_get_hw_state(i915, &lvds_encoder->init_pps);
lvds_encoder->init_lvds_val = lvds;
/*
* 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
*/
/*
* Attempt to get the fixed panel mode from DDC. Assume that the
* preferred mode is the right one.
*/
mutex_lock(&i915->drm.mode_config.mutex);
if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC)
drm_edid = drm_edid_read_switcheroo(&connector->base, connector->base.ddc);
else
drm_edid = drm_edid_read_ddc(&connector->base, connector->base.ddc);
if (drm_edid) {
if (drm_edid_connector_update(&connector->base, drm_edid) ||
!drm_edid_connector_add_modes(&connector->base)) {
drm_edid_connector_update(&connector->base, NULL);
drm_edid_free(drm_edid);
drm_edid = ERR_PTR(-EINVAL);
}
} else {
drm_edid = ERR_PTR(-ENOENT);
}
intel_bios_init_panel_late(i915, &connector->panel, NULL,
IS_ERR(drm_edid) ? NULL : drm_edid);
/* Try EDID first */
intel_panel_add_edid_fixed_modes(connector, true);
/* Failed to get EDID, what about VBT? */
if (!intel_panel_preferred_fixed_mode(connector))
intel_panel_add_vbt_lfp_fixed_mode(connector);
/*
* If we didn't get a fixed mode from EDID or VBT, try checking
* if the panel is already turned on. If so, assume that
* whatever is currently programmed is the correct mode.
*/
if (!intel_panel_preferred_fixed_mode(connector))
intel_panel_add_encoder_fixed_mode(connector, encoder);
mutex_unlock(&i915->drm.mode_config.mutex);
/* If we still don't have a mode after all that, give up. */
if (!intel_panel_preferred_fixed_mode(connector))
goto failed;
intel_panel_init(connector, drm_edid);
intel_backlight_setup(connector, INVALID_PIPE);
lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder);
drm_dbg_kms(&i915->drm, "detected %s-link lvds configuration\n",
lvds_encoder->is_dual_link ? "dual" : "single");
lvds_encoder->a3_power = lvds & LVDS_A3_POWER_MASK;
return;
failed:
drm_dbg_kms(&i915->drm, "No LVDS modes found, disabling.\n");
drm_connector_cleanup(&connector->base);
drm_encoder_cleanup(&encoder->base);
kfree(lvds_encoder);
intel_connector_free(connector);
return;
}