[PATCH 02/17] drm/tegra: Do not enable output on .mode_set()

[Sean Paul]

On Mon, Nov 3, 2014 at 4:27 AM, Thierry Reding <thierry.reding at gmail.com> wrote:
> From: Thierry Reding <treding at nvidia.com>
>
> The output is already enabled in .dpms(), doing it in .mode_set() too
> can cause noticeable flicker.
>

I think this should be coupled with "drm/tegra: DPMS off/on in encoder
prepare/commit" that I sent earlier this week. Without it, the driver
can get into a state where connector status is on, but the output is
disabled.

Sean


> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---
>  drivers/gpu/drm/tegra/output.c | 6 ------
>  1 file changed, 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
> index 0c67d7eebc94..6b393cfbb5e7 100644
> --- 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 = {
> --
> 2.1.2
>