drm/tegra: Do not enable output on .mode_set()

The output is already enabled in .dpms(), doing it in .mode_set() too
can cause noticeable flicker.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index 0c67d7eebc94876d645fe0827485bdc13a998035..6b393cfbb5e7bab2772c17adbd8946506b1b1172 100644 (file)
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -167,12 +167,6 @@ static void tegra_encoder_mode_set(struct drm_encoder *encoder,
                                   struct drm_display_mode *mode,
                                   struct drm_display_mode *adjusted)
 {
-       struct tegra_output *output = encoder_to_output(encoder);
-       int err;
-
-       err = tegra_output_enable(output);
-       if (err < 0)
-               dev_err(encoder->dev->dev, "tegra_output_enable(): %d\n", err);
 }
 
 static const struct drm_encoder_helper_funcs encoder_helper_funcs = {