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- From 069acde1ae77a0807062df0b009a51809cb3aa2a Mon Sep 17 00:00:00 2001
- From: Mario Kleiner <mario.kleiner.de@gmail.com>
- Date: Tue, 19 Jul 2016 20:58:57 +0200
- Subject: [PATCH] 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>
- ---
- drivers/gpu/drm/vc4/vc4_dpi.c | 11 +++++++++++
- 1 file changed, 11 insertions(+)
- --- a/drivers/gpu/drm/vc4/vc4_dpi.c
- +++ b/drivers/gpu/drm/vc4/vc4_dpi.c
- @@ -349,9 +349,20 @@ static void vc4_dpi_encoder_enable(struc
- }
- }
-
- +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[] = {
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