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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-08-15 17:42:14 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-11-11 17:08:12 +0100 |
| commit | 339d202cde8e63113124d8931203f5bdb3343f27 (patch) | |
| tree | 586411bf2f05a6bc4467fba6f7c14e334c50b4ef /drivers/gpu/drm/drm_edid.c | |
| parent | Merge branch 'gma500-next' of git://github.com/patjak/drm-gma500 into drm-next (diff) | |
| download | linux-339d202cde8e63113124d8931203f5bdb3343f27.tar.xz linux-339d202cde8e63113124d8931203f5bdb3343f27.zip | |
drm/edid: compare actual vrefresh for all modes for quirks
The vrefresh field of the mode is 0 for most modes
fetched from the EDID (e.g., established timings).
When dealing with monitors that have a bogus preferred
mode, we may not always select the mode we want because
we compare the target refresh to the mode's vrefresh which
is 0 in a lot of cases.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 2f325bcd0708..fb7cf0e796f6 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1329,7 +1329,7 @@ static u32 edid_get_quirks(struct edid *edid) } #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay) -#define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh)) +#define MODE_REFRESH_DIFF(c,t) (abs((c) - (t))) /** * edid_fixup_preferred - set preferred modes based on quirk list @@ -1344,6 +1344,7 @@ static void edid_fixup_preferred(struct drm_connector *connector, { struct drm_display_mode *t, *cur_mode, *preferred_mode; int target_refresh = 0; + int cur_vrefresh, preferred_vrefresh; if (list_empty(&connector->probed_modes)) return; @@ -1366,10 +1367,14 @@ static void edid_fixup_preferred(struct drm_connector *connector, if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode)) preferred_mode = cur_mode; + cur_vrefresh = cur_mode->vrefresh ? + cur_mode->vrefresh : drm_mode_vrefresh(cur_mode); + preferred_vrefresh = preferred_mode->vrefresh ? + preferred_mode->vrefresh : drm_mode_vrefresh(preferred_mode); /* At a given size, try to get closest to target refresh */ if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) && - MODE_REFRESH_DIFF(cur_mode, target_refresh) < - MODE_REFRESH_DIFF(preferred_mode, target_refresh)) { + MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) < + MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) { preferred_mode = cur_mode; } } |