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| author | Mario Kleiner <mario.kleiner.de@gmail.com> | 2016-07-19 21:58:57 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2016-08-20 05:05:43 +0300 |
| commit | e2298350de58d5c956131003606bfa4995f26933 (patch) | |
| tree | b749130c810be0dc027ede79230fd3edb05933d4 /drivers/gpu/drm/vc4 | |
| parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
| download | linux-e2298350de58d5c956131003606bfa4995f26933.tar.xz | |
drm/vc4: Disallow interlaced modes on DPI.
We already don't expose such modes to userspace, but make
sure userspace can't sneak some interlaced mode in.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/vc4')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_dpi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c index 275fedbdbd9e..1e1f6b8184d0 100644 --- a/drivers/gpu/drm/vc4/vc4_dpi.c +++ b/drivers/gpu/drm/vc4/vc4_dpi.c @@ -340,9 +340,20 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder) } } +static bool vc4_dpi_encoder_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) + return false; + + return true; +} + static const struct drm_encoder_helper_funcs vc4_dpi_encoder_helper_funcs = { .disable = vc4_dpi_encoder_disable, .enable = vc4_dpi_encoder_enable, + .mode_fixup = vc4_dpi_encoder_mode_fixup, }; static const struct of_device_id vc4_dpi_dt_match[] = { |