drm: vc4: Use crtc->mode_valid() and encoder->mode_valid() callbacks

Now that we have a callback to check if crtc and encoder supports a
given mode we can use it in vc4 so that we restrict the number of
probed modes to the ones we can actually display.

Also, remove the mode_fixup() calls as these are no longer needed
because mode_valid() will be called before.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Airlie <airlied@linux.ie>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Compile-tested and Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/5bea792f91074688c88a2dab8b0a90eec6e98fdf.1495720737.git.joabreu@synopsys.com

1 files changed, 6 insertions, 7 deletions

diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c
index 2e0fe46aeb2e..519cefef800d 100644
--- a/drivers/gpu/drm/vc4/vc4_dpi.c
+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
@@ -224,20 +224,19 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder)
 		DRM_ERROR("Failed to set clock rate: %d\n", ret);
 }
 
-static bool vc4_dpi_encoder_mode_fixup(struct drm_encoder *encoder,
-				       const struct drm_display_mode *mode,
-				       struct drm_display_mode *adjusted_mode)
+static enum drm_mode_status vc4_dpi_encoder_mode_valid(struct drm_encoder *encoder,
+						       const struct drm_display_mode *mode)
 {
-	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
-		return false;
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		return MODE_NO_INTERLACE;
 
-	return true;
+	return MODE_OK;
 }
 
 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,
+	.mode_valid = vc4_dpi_encoder_mode_valid,
 };
 
 static const struct of_device_id vc4_dpi_dt_match[] = {