Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2006-2009 Intel Corporation |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | * |
| 17 | * Authors: |
| 18 | * Eric Anholt <eric@anholt.net> |
| 19 | * Dave Airlie <airlied@linux.ie> |
| 20 | * Jesse Barnes <jesse.barnes@intel.com> |
| 21 | */ |
| 22 | |
| 23 | #include <linux/i2c.h> |
| 24 | #include <drm/drmP.h> |
Kuppuswamy Sathyanarayanan | 05454c2 | 2013-10-17 15:35:27 -0700 | [diff] [blame] | 25 | #include <asm/intel-mid.h> |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 26 | |
| 27 | #include "intel_bios.h" |
| 28 | #include "psb_drv.h" |
| 29 | #include "psb_intel_drv.h" |
| 30 | #include "psb_intel_reg.h" |
| 31 | #include "power.h" |
| 32 | #include <linux/pm_runtime.h> |
| 33 | |
| 34 | /* The max/min PWM frequency in BPCR[31:17] - */ |
| 35 | /* The smallest number is 1 (not 0) that can fit in the |
| 36 | * 15-bit field of the and then*/ |
| 37 | /* shifts to the left by one bit to get the actual 16-bit |
| 38 | * value that the 15-bits correspond to.*/ |
| 39 | #define MRST_BLC_MAX_PWM_REG_FREQ 0xFFFF |
| 40 | #define BRIGHTNESS_MAX_LEVEL 100 |
| 41 | |
| 42 | /** |
| 43 | * Sets the power state for the panel. |
| 44 | */ |
| 45 | static void oaktrail_lvds_set_power(struct drm_device *dev, |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 46 | struct gma_encoder *gma_encoder, |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 47 | bool on) |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 48 | { |
| 49 | u32 pp_status; |
| 50 | struct drm_psb_private *dev_priv = dev->dev_private; |
| 51 | |
| 52 | if (!gma_power_begin(dev, true)) |
| 53 | return; |
| 54 | |
| 55 | if (on) { |
| 56 | REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) | |
| 57 | POWER_TARGET_ON); |
| 58 | do { |
| 59 | pp_status = REG_READ(PP_STATUS); |
| 60 | } while ((pp_status & (PP_ON | PP_READY)) == PP_READY); |
| 61 | dev_priv->is_lvds_on = true; |
| 62 | if (dev_priv->ops->lvds_bl_power) |
| 63 | dev_priv->ops->lvds_bl_power(dev, true); |
| 64 | } else { |
| 65 | if (dev_priv->ops->lvds_bl_power) |
| 66 | dev_priv->ops->lvds_bl_power(dev, false); |
| 67 | REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) & |
| 68 | ~POWER_TARGET_ON); |
| 69 | do { |
| 70 | pp_status = REG_READ(PP_STATUS); |
| 71 | } while (pp_status & PP_ON); |
| 72 | dev_priv->is_lvds_on = false; |
| 73 | pm_request_idle(&dev->pdev->dev); |
| 74 | } |
| 75 | gma_power_end(dev); |
| 76 | } |
| 77 | |
| 78 | static void oaktrail_lvds_dpms(struct drm_encoder *encoder, int mode) |
| 79 | { |
| 80 | struct drm_device *dev = encoder->dev; |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 81 | struct gma_encoder *gma_encoder = to_gma_encoder(encoder); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 82 | |
| 83 | if (mode == DRM_MODE_DPMS_ON) |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 84 | oaktrail_lvds_set_power(dev, gma_encoder, true); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 85 | else |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 86 | oaktrail_lvds_set_power(dev, gma_encoder, false); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 87 | |
| 88 | /* XXX: We never power down the LVDS pairs. */ |
| 89 | } |
| 90 | |
| 91 | static void oaktrail_lvds_mode_set(struct drm_encoder *encoder, |
| 92 | struct drm_display_mode *mode, |
| 93 | struct drm_display_mode *adjusted_mode) |
| 94 | { |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 95 | struct drm_device *dev = encoder->dev; |
| 96 | struct drm_psb_private *dev_priv = dev->dev_private; |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 97 | struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; |
| 98 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 99 | struct drm_connector *connector = NULL; |
| 100 | struct drm_crtc *crtc = encoder->crtc; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 101 | u32 lvds_port; |
| 102 | uint64_t v = DRM_MODE_SCALE_FULLSCREEN; |
| 103 | |
| 104 | if (!gma_power_begin(dev, true)) |
| 105 | return; |
| 106 | |
| 107 | /* |
| 108 | * The LVDS pin pair will already have been turned on in the |
| 109 | * psb_intel_crtc_mode_set since it has a large impact on the DPLL |
| 110 | * settings. |
| 111 | */ |
| 112 | lvds_port = (REG_READ(LVDS) & |
| 113 | (~LVDS_PIPEB_SELECT)) | |
| 114 | LVDS_PORT_EN | |
| 115 | LVDS_BORDER_EN; |
| 116 | |
| 117 | /* If the firmware says dither on Moorestown, or the BIOS does |
| 118 | on Oaktrail then enable dithering */ |
| 119 | if (mode_dev->panel_wants_dither || dev_priv->lvds_dither) |
| 120 | lvds_port |= MRST_PANEL_8TO6_DITHER_ENABLE; |
| 121 | |
| 122 | REG_WRITE(LVDS, lvds_port); |
| 123 | |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 124 | /* Find the connector we're trying to set up */ |
| 125 | list_for_each_entry(connector, &mode_config->connector_list, head) { |
| 126 | if (!connector->encoder || connector->encoder->crtc != crtc) |
| 127 | continue; |
| 128 | } |
| 129 | |
| 130 | if (!connector) { |
| 131 | DRM_ERROR("Couldn't find connector when setting mode"); |
| 132 | return; |
| 133 | } |
| 134 | |
Rob Clark | a69ac9e | 2012-10-11 20:38:23 -0500 | [diff] [blame] | 135 | drm_object_property_get_value( |
| 136 | &connector->base, |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 137 | dev->mode_config.scaling_mode_property, |
| 138 | &v); |
| 139 | |
| 140 | if (v == DRM_MODE_SCALE_NO_SCALE) |
| 141 | REG_WRITE(PFIT_CONTROL, 0); |
| 142 | else if (v == DRM_MODE_SCALE_ASPECT) { |
| 143 | if ((mode->vdisplay != adjusted_mode->crtc_vdisplay) || |
| 144 | (mode->hdisplay != adjusted_mode->crtc_hdisplay)) { |
| 145 | if ((adjusted_mode->crtc_hdisplay * mode->vdisplay) == |
| 146 | (mode->hdisplay * adjusted_mode->crtc_vdisplay)) |
| 147 | REG_WRITE(PFIT_CONTROL, PFIT_ENABLE); |
| 148 | else if ((adjusted_mode->crtc_hdisplay * |
| 149 | mode->vdisplay) > (mode->hdisplay * |
| 150 | adjusted_mode->crtc_vdisplay)) |
| 151 | REG_WRITE(PFIT_CONTROL, PFIT_ENABLE | |
| 152 | PFIT_SCALING_MODE_PILLARBOX); |
| 153 | else |
| 154 | REG_WRITE(PFIT_CONTROL, PFIT_ENABLE | |
| 155 | PFIT_SCALING_MODE_LETTERBOX); |
| 156 | } else |
| 157 | REG_WRITE(PFIT_CONTROL, PFIT_ENABLE); |
| 158 | } else /*(v == DRM_MODE_SCALE_FULLSCREEN)*/ |
| 159 | REG_WRITE(PFIT_CONTROL, PFIT_ENABLE); |
| 160 | |
| 161 | gma_power_end(dev); |
| 162 | } |
| 163 | |
| 164 | static void oaktrail_lvds_prepare(struct drm_encoder *encoder) |
| 165 | { |
| 166 | struct drm_device *dev = encoder->dev; |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 167 | struct drm_psb_private *dev_priv = dev->dev_private; |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 168 | struct gma_encoder *gma_encoder = to_gma_encoder(encoder); |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 169 | struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 170 | |
| 171 | if (!gma_power_begin(dev, true)) |
| 172 | return; |
| 173 | |
| 174 | mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL); |
| 175 | mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL & |
| 176 | BACKLIGHT_DUTY_CYCLE_MASK); |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 177 | oaktrail_lvds_set_power(dev, gma_encoder, false); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 178 | gma_power_end(dev); |
| 179 | } |
| 180 | |
| 181 | static u32 oaktrail_lvds_get_max_backlight(struct drm_device *dev) |
| 182 | { |
| 183 | struct drm_psb_private *dev_priv = dev->dev_private; |
| 184 | u32 ret; |
| 185 | |
| 186 | if (gma_power_begin(dev, false)) { |
| 187 | ret = ((REG_READ(BLC_PWM_CTL) & |
| 188 | BACKLIGHT_MODULATION_FREQ_MASK) >> |
| 189 | BACKLIGHT_MODULATION_FREQ_SHIFT) * 2; |
| 190 | |
| 191 | gma_power_end(dev); |
| 192 | } else |
Alan Cox | 648a8e3 | 2012-03-08 16:00:31 +0000 | [diff] [blame] | 193 | ret = ((dev_priv->regs.saveBLC_PWM_CTL & |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 194 | BACKLIGHT_MODULATION_FREQ_MASK) >> |
| 195 | BACKLIGHT_MODULATION_FREQ_SHIFT) * 2; |
| 196 | |
| 197 | return ret; |
| 198 | } |
| 199 | |
| 200 | static void oaktrail_lvds_commit(struct drm_encoder *encoder) |
| 201 | { |
| 202 | struct drm_device *dev = encoder->dev; |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 203 | struct drm_psb_private *dev_priv = dev->dev_private; |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 204 | struct gma_encoder *gma_encoder = to_gma_encoder(encoder); |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 205 | struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 206 | |
| 207 | if (mode_dev->backlight_duty_cycle == 0) |
| 208 | mode_dev->backlight_duty_cycle = |
| 209 | oaktrail_lvds_get_max_backlight(dev); |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 210 | oaktrail_lvds_set_power(dev, gma_encoder, true); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | static const struct drm_encoder_helper_funcs oaktrail_lvds_helper_funcs = { |
| 214 | .dpms = oaktrail_lvds_dpms, |
| 215 | .mode_fixup = psb_intel_lvds_mode_fixup, |
| 216 | .prepare = oaktrail_lvds_prepare, |
| 217 | .mode_set = oaktrail_lvds_mode_set, |
| 218 | .commit = oaktrail_lvds_commit, |
| 219 | }; |
| 220 | |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 221 | /* Returns the panel fixed mode from configuration. */ |
| 222 | |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 223 | static void oaktrail_lvds_get_configuration_mode(struct drm_device *dev, |
| 224 | struct psb_intel_mode_device *mode_dev) |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 225 | { |
| 226 | struct drm_display_mode *mode = NULL; |
| 227 | struct drm_psb_private *dev_priv = dev->dev_private; |
| 228 | struct oaktrail_timing_info *ti = &dev_priv->gct_data.DTD; |
| 229 | |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 230 | mode_dev->panel_fixed_mode = NULL; |
| 231 | |
| 232 | /* Use the firmware provided data on Moorestown */ |
Kirill A. Shutemov | 4086b1e | 2012-05-03 16:27:21 +0100 | [diff] [blame] | 233 | if (dev_priv->has_gct) { |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 234 | mode = kzalloc(sizeof(*mode), GFP_KERNEL); |
| 235 | if (!mode) |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 236 | return; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 237 | |
| 238 | mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo; |
| 239 | mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo; |
| 240 | mode->hsync_start = mode->hdisplay + \ |
| 241 | ((ti->hsync_offset_hi << 8) | \ |
| 242 | ti->hsync_offset_lo); |
| 243 | mode->hsync_end = mode->hsync_start + \ |
| 244 | ((ti->hsync_pulse_width_hi << 8) | \ |
| 245 | ti->hsync_pulse_width_lo); |
| 246 | mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \ |
| 247 | ti->hblank_lo); |
| 248 | mode->vsync_start = \ |
| 249 | mode->vdisplay + ((ti->vsync_offset_hi << 4) | \ |
| 250 | ti->vsync_offset_lo); |
| 251 | mode->vsync_end = \ |
| 252 | mode->vsync_start + ((ti->vsync_pulse_width_hi << 4) | \ |
| 253 | ti->vsync_pulse_width_lo); |
| 254 | mode->vtotal = mode->vdisplay + \ |
| 255 | ((ti->vblank_hi << 8) | ti->vblank_lo); |
| 256 | mode->clock = ti->pixel_clock * 10; |
| 257 | #if 0 |
| 258 | printk(KERN_INFO "hdisplay is %d\n", mode->hdisplay); |
| 259 | printk(KERN_INFO "vdisplay is %d\n", mode->vdisplay); |
| 260 | printk(KERN_INFO "HSS is %d\n", mode->hsync_start); |
| 261 | printk(KERN_INFO "HSE is %d\n", mode->hsync_end); |
| 262 | printk(KERN_INFO "htotal is %d\n", mode->htotal); |
| 263 | printk(KERN_INFO "VSS is %d\n", mode->vsync_start); |
| 264 | printk(KERN_INFO "VSE is %d\n", mode->vsync_end); |
| 265 | printk(KERN_INFO "vtotal is %d\n", mode->vtotal); |
| 266 | printk(KERN_INFO "clock is %d\n", mode->clock); |
| 267 | #endif |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 268 | mode_dev->panel_fixed_mode = mode; |
| 269 | } |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 270 | |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 271 | /* Use the BIOS VBT mode if available */ |
| 272 | if (mode_dev->panel_fixed_mode == NULL && mode_dev->vbt_mode) |
| 273 | mode_dev->panel_fixed_mode = drm_mode_duplicate(dev, |
| 274 | mode_dev->vbt_mode); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 275 | |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 276 | /* Then try the LVDS VBT mode */ |
| 277 | if (mode_dev->panel_fixed_mode == NULL) |
| 278 | if (dev_priv->lfp_lvds_vbt_mode) |
| 279 | mode_dev->panel_fixed_mode = |
| 280 | drm_mode_duplicate(dev, |
| 281 | dev_priv->lfp_lvds_vbt_mode); |
Patrik Jakobsson | 49a5d87 | 2013-11-08 16:00:33 +0100 | [diff] [blame] | 282 | |
| 283 | /* If we still got no mode then bail */ |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 284 | if (mode_dev->panel_fixed_mode == NULL) |
Patrik Jakobsson | 49a5d87 | 2013-11-08 16:00:33 +0100 | [diff] [blame] | 285 | return; |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 286 | |
| 287 | drm_mode_set_name(mode_dev->panel_fixed_mode); |
| 288 | drm_mode_set_crtcinfo(mode_dev->panel_fixed_mode, 0); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | /** |
| 292 | * oaktrail_lvds_init - setup LVDS connectors on this device |
| 293 | * @dev: drm device |
| 294 | * |
| 295 | * Create the connector, register the LVDS DDC bus, and try to figure out what |
| 296 | * modes we can display on the LVDS panel (if present). |
| 297 | */ |
| 298 | void oaktrail_lvds_init(struct drm_device *dev, |
| 299 | struct psb_intel_mode_device *mode_dev) |
| 300 | { |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 301 | struct gma_encoder *gma_encoder; |
Patrik Jakobsson | a3d5d75 | 2013-07-22 17:05:25 +0200 | [diff] [blame] | 302 | struct gma_connector *gma_connector; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 303 | struct drm_connector *connector; |
| 304 | struct drm_encoder *encoder; |
Alan Cox | 5d3852d | 2011-12-20 15:58:29 +0000 | [diff] [blame] | 305 | struct drm_psb_private *dev_priv = dev->dev_private; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 306 | struct edid *edid; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 307 | struct i2c_adapter *i2c_adap; |
| 308 | struct drm_display_mode *scan; /* *modes, *bios_mode; */ |
| 309 | |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 310 | gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL); |
| 311 | if (!gma_encoder) |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 312 | return; |
| 313 | |
Patrik Jakobsson | a3d5d75 | 2013-07-22 17:05:25 +0200 | [diff] [blame] | 314 | gma_connector = kzalloc(sizeof(struct gma_connector), GFP_KERNEL); |
| 315 | if (!gma_connector) |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 316 | goto failed_connector; |
| 317 | |
Patrik Jakobsson | a3d5d75 | 2013-07-22 17:05:25 +0200 | [diff] [blame] | 318 | connector = &gma_connector->base; |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 319 | encoder = &gma_encoder->base; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 320 | dev_priv->is_lvds_on = true; |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 321 | drm_connector_init(dev, connector, |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 322 | &psb_intel_lvds_connector_funcs, |
| 323 | DRM_MODE_CONNECTOR_LVDS); |
| 324 | |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 325 | drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs, |
Ville Syrjälä | 13a3d91 | 2015-12-09 16:20:18 +0200 | [diff] [blame] | 326 | DRM_MODE_ENCODER_LVDS, NULL); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 327 | |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 328 | gma_connector_attach_encoder(gma_connector, gma_encoder); |
| 329 | gma_encoder->type = INTEL_OUTPUT_LVDS; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 330 | |
| 331 | drm_encoder_helper_add(encoder, &oaktrail_lvds_helper_funcs); |
| 332 | drm_connector_helper_add(connector, |
| 333 | &psb_intel_lvds_connector_helper_funcs); |
| 334 | connector->display_info.subpixel_order = SubPixelHorizontalRGB; |
| 335 | connector->interlace_allowed = false; |
| 336 | connector->doublescan_allowed = false; |
| 337 | |
Rob Clark | a69ac9e | 2012-10-11 20:38:23 -0500 | [diff] [blame] | 338 | drm_object_attach_property(&connector->base, |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 339 | dev->mode_config.scaling_mode_property, |
| 340 | DRM_MODE_SCALE_FULLSCREEN); |
Rob Clark | a69ac9e | 2012-10-11 20:38:23 -0500 | [diff] [blame] | 341 | drm_object_attach_property(&connector->base, |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 342 | dev_priv->backlight_property, |
| 343 | BRIGHTNESS_MAX_LEVEL); |
| 344 | |
| 345 | mode_dev->panel_wants_dither = false; |
Kirill A. Shutemov | 4086b1e | 2012-05-03 16:27:21 +0100 | [diff] [blame] | 346 | if (dev_priv->has_gct) |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 347 | mode_dev->panel_wants_dither = (dev_priv->gct_data. |
| 348 | Panel_Port_Control & MRST_PANEL_8TO6_DITHER_ENABLE); |
Alan Cox | e2e022e | 2011-12-20 15:58:44 +0000 | [diff] [blame] | 349 | if (dev_priv->lvds_dither) |
| 350 | mode_dev->panel_wants_dither = 1; |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 351 | |
| 352 | /* |
| 353 | * LVDS discovery: |
| 354 | * 1) check for EDID on DDC |
| 355 | * 2) check for VBT data |
| 356 | * 3) check to see if LVDS is already on |
| 357 | * if none of the above, no panel |
| 358 | * 4) make sure lid is open |
| 359 | * if closed, act like it's not there for now |
| 360 | */ |
| 361 | |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 362 | edid = NULL; |
Daniel Vetter | c46145a | 2014-03-21 23:22:36 +0100 | [diff] [blame] | 363 | mutex_lock(&dev->mode_config.mutex); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 364 | i2c_adap = i2c_get_adapter(dev_priv->ops->i2c_bus); |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 365 | if (i2c_adap) |
| 366 | edid = drm_get_edid(connector, i2c_adap); |
| 367 | if (edid == NULL && dev_priv->lpc_gpio_base) { |
| 368 | oaktrail_lvds_i2c_init(encoder); |
| 369 | if (gma_encoder->ddc_bus != NULL) { |
| 370 | i2c_adap = &gma_encoder->ddc_bus->adapter; |
| 371 | edid = drm_get_edid(connector, i2c_adap); |
| 372 | } |
| 373 | } |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 374 | /* |
| 375 | * Attempt to get the fixed panel mode from DDC. Assume that the |
| 376 | * preferred mode is the right one. |
| 377 | */ |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 378 | if (edid) { |
| 379 | drm_mode_connector_update_edid_property(connector, edid); |
| 380 | drm_add_edid_modes(connector, edid); |
| 381 | kfree(edid); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 382 | |
| 383 | list_for_each_entry(scan, &connector->probed_modes, head) { |
| 384 | if (scan->type & DRM_MODE_TYPE_PREFERRED) { |
| 385 | mode_dev->panel_fixed_mode = |
| 386 | drm_mode_duplicate(dev, scan); |
| 387 | goto out; /* FIXME: check for quirks */ |
| 388 | } |
| 389 | } |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 390 | } else |
| 391 | dev_err(dev->dev, "No ddc adapter available!\n"); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 392 | /* |
| 393 | * If we didn't get EDID, try geting panel timing |
| 394 | * from configuration data |
| 395 | */ |
Alan Cox | 1b22edf | 2011-11-29 22:27:57 +0000 | [diff] [blame] | 396 | oaktrail_lvds_get_configuration_mode(dev, mode_dev); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 397 | |
| 398 | if (mode_dev->panel_fixed_mode) { |
| 399 | mode_dev->panel_fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; |
| 400 | goto out; /* FIXME: check for quirks */ |
| 401 | } |
| 402 | |
| 403 | /* If we still don't have a mode after all that, give up. */ |
| 404 | if (!mode_dev->panel_fixed_mode) { |
| 405 | dev_err(dev->dev, "Found no modes on the lvds, ignoring the LVDS\n"); |
| 406 | goto failed_find; |
| 407 | } |
| 408 | |
| 409 | out: |
Daniel Vetter | c46145a | 2014-03-21 23:22:36 +0100 | [diff] [blame] | 410 | mutex_unlock(&dev->mode_config.mutex); |
| 411 | |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 412 | drm_connector_register(connector); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 413 | return; |
| 414 | |
| 415 | failed_find: |
Daniel Vetter | c46145a | 2014-03-21 23:22:36 +0100 | [diff] [blame] | 416 | mutex_unlock(&dev->mode_config.mutex); |
| 417 | |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 418 | dev_dbg(dev->dev, "No LVDS modes found, disabling.\n"); |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 419 | if (gma_encoder->ddc_bus) { |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 420 | psb_intel_i2c_destroy(gma_encoder->ddc_bus); |
Jan Safrata | 5a52b1f | 2014-09-26 10:40:29 +0200 | [diff] [blame] | 421 | gma_encoder->ddc_bus = NULL; |
| 422 | } |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 423 | |
| 424 | /* failed_ddc: */ |
| 425 | |
| 426 | drm_encoder_cleanup(encoder); |
| 427 | drm_connector_cleanup(connector); |
Patrik Jakobsson | a3d5d75 | 2013-07-22 17:05:25 +0200 | [diff] [blame] | 428 | kfree(gma_connector); |
Patrik Jakobsson | 9bd81ac | 2011-12-19 21:41:33 +0000 | [diff] [blame] | 429 | failed_connector: |
Patrik Jakobsson | 367e440 | 2013-07-22 17:45:26 +0200 | [diff] [blame] | 430 | kfree(gma_encoder); |
Alan Cox | 1b082cc | 2011-11-03 18:22:26 +0000 | [diff] [blame] | 431 | } |
| 432 | |