Signed-off-by: Adam Jackson ajax@redhat.com --- drivers/gpu/drm/drm_edid.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5873e48..4a3e61a 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1007,8 +1007,15 @@ range_pixel_clock(struct edid *edid, u8 *t) if (edid->revision >= 4 && t[10] == 0x04) return (t[9] * 10000) - ((t[12] >> 2) * 250);
- /* 1.3 is pathetic, so fuzz up a bit */ - return t[9] * 10000 + 5001; + /* + * Otherwise we have only 10MHz granularity. If we were using this + * code to filter an EDID mode list we'd want to round up like + * xserver does, as it's common to see a max of 160MHz but a 162MHz + * 1600x1200 mode as the preferred timing. But since we're using + * this as a filter while _building_ the list from implied support, + * not rounding up is the safe thing. + */ + return t[9] * 10000; }
static bool