diff options
| author | Adam Jackson <ajax@redhat.com> | 2015-06-15 23:16:15 +0300 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-06-30 19:15:27 +0300 |
| commit | 5401931bbb839cbecbbd3c93c569f5524f466461 (patch) | |
| tree | 4395b71fdee633014d8107b4deca41751cdd9201 /drivers/gpu | |
| parent | 32760bddd237b446fff0bb12b720a03de07c9a36 (diff) | |
| download | linux-5401931bbb839cbecbbd3c93c569f5524f466461.tar.xz | |
drm/mgag200: Reject non-character-cell-aligned mode widths
commit 25161084b1c1b0c29948f6f77266a35f302196b7 upstream.
Turns out 1366x768 does not in fact work on this hardware.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index a034ed408252..222b0ff2e3fd 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -1529,6 +1529,11 @@ static int mga_vga_mode_valid(struct drm_connector *connector, return MODE_BANDWIDTH; } + if ((mode->hdisplay % 8) != 0 || (mode->hsync_start % 8) != 0 || + (mode->hsync_end % 8) != 0 || (mode->htotal % 8) != 0) { + return MODE_H_ILLEGAL; + } + if (mode->crtc_hdisplay > 2048 || mode->crtc_hsync_start > 4096 || mode->crtc_hsync_end > 4096 || mode->crtc_htotal > 4096 || mode->crtc_vdisplay > 2048 || mode->crtc_vsync_start > 4096 || |