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drm/edid/quirks: ViewSonic VA2026w
Entirely new class of fail for this one. The detailed timings are for normal CVT but the monitor really wanted CVT-R. Bugzilla: http://bugzilla.redhat/com/516471 Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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1c780f2cfe
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bc42aabc6a
1 changed files with 18 additions and 4 deletions
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@ -66,6 +66,8 @@
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#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
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/* use +hsync +vsync for detailed mode */
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#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
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/* Force reduced-blanking timings for detailed modes */
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#define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
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struct detailed_mode_closure {
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struct drm_connector *connector;
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@ -120,6 +122,9 @@ static struct edid_quirk {
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/* Samsung SyncMaster 22[5-6]BW */
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{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
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{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
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/* ViewSonic VA2026w */
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{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
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};
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/*** DDC fetch and block validation ***/
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@ -885,12 +890,19 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
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"Wrong Hsync/Vsync pulse width\n");
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return NULL;
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}
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if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
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mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
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if (!mode)
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return NULL;
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goto set_size;
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}
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mode = drm_mode_create(dev);
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if (!mode)
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return NULL;
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mode->type = DRM_MODE_TYPE_DRIVER;
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if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
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timing->pixel_clock = cpu_to_le16(1088);
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@ -914,8 +926,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
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drm_mode_do_interlace_quirk(mode, pt);
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drm_mode_set_name(mode);
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if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
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pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
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}
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@ -925,6 +935,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
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mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
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DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
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set_size:
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mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
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mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
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@ -938,6 +949,9 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
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mode->height_mm = edid->height_cm * 10;
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}
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mode->type = DRM_MODE_TYPE_DRIVER;
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drm_mode_set_name(mode);
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return mode;
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}
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