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Commit e2298350 authored by Mario Kleiner's avatar Mario Kleiner Committed by Eric Anholt
Browse files

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: default avatarMario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent 29b4817d

drivers/gpu/drm/vc4/vc4_dpi.c

+11 −0
Original line number Diff line number Diff line
@@ -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[] = {