diff options
| author | Adam Jackson <ajax@redhat.com> | 2009-09-23 17:31:21 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-09-24 09:46:08 +1000 |
| commit | f066a17d9f8d0a20d01d1aa9badce7f43c7bd6ad (patch) | |
| tree | 49e80bea2a233fe0a36fdde0c47b5159d3753925 | |
| parent | 93dc6c2b0d97a55508144073838e041140b206cd (diff) | |
drm/edid: Fix standard timing parse for EDID <= 1.2
Aspect ratio code of 0 means 1:1 before EDID 1.3.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 8ed732ae1ec..9888c2076b2 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -528,6 +528,7 @@ bad_std_timing(u8 a, u8 b) */ struct drm_display_mode *drm_mode_std(struct drm_device *dev, struct std_timing *t, + int revision, int timing_level) { struct drm_display_mode *mode; @@ -546,9 +547,12 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev, /* vrefresh_rate = vfreq + 60 */ vrefresh_rate = vfreq + 60; /* the vdisplay is calculated based on the aspect ratio */ - if (aspect_ratio == 0) - vsize = (hsize * 10) / 16; - else if (aspect_ratio == 1) + if (aspect_ratio == 0) { + if (revision < 3) + vsize = hsize; + else + vsize = (hsize * 10) / 16; + } else if (aspect_ratio == 1) vsize = (hsize * 3) / 4; else if (aspect_ratio == 2) vsize = (hsize * 4) / 5; @@ -797,7 +801,7 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid continue; newmode = drm_mode_std(dev, &edid->standard_timings[i], - timing_level); + edid->revision, timing_level); if (newmode) { drm_mode_probed_add(connector, newmode); modes++; @@ -853,6 +857,7 @@ static int add_detailed_info(struct drm_connector *connector, std = &data->data.timings[j]; newmode = drm_mode_std(dev, std, + edid->revision, timing_level); if (newmode) { drm_mode_probed_add(connector, newmode); @@ -981,7 +986,9 @@ static int add_detailed_info_eedid(struct drm_connector *connector, struct drm_display_mode *newmode; std = &data->data.timings[j]; - newmode = drm_mode_std(dev, std, timing_level); + newmode = drm_mode_std(dev, std, + edid->revision, + timing_level); if (newmode) { drm_mode_probed_add(connector, newmode); modes++; |