On Thu, 06 Nov 2014, Jesse Barnes <jbar...@virtuousgeek.org> wrote:
> If these change (e.g. after a modeset following a fastboot), we need to
> do a full mode set.
>
> v2:
>   - put under pipe_config check so we don't deref a null state (Jesse)
>
> Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c 
> b/drivers/gpu/drm/i915/intel_display.c
> index cb96f11..c86eee6 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11230,8 +11230,18 @@ static int intel_crtc_set_config(struct drm_mode_set 
> *set)
>                                                  &modeset_pipes,
>                                                  &prepare_pipes,
>                                                  &disable_pipes);
> -     if (IS_ERR(pipe_config))
> +     if (IS_ERR(pipe_config)) {
>               goto fail;
> +     } else if (pipe_config) {
> +             if (to_intel_crtc(set->crtc)->new_config->has_audio !=
> +                 to_intel_crtc(set->crtc)->config.has_audio)
> +                     config->mode_changed = true;
> +
> +             /* Force mode sets for any infoframe stuff */
> +             if (to_intel_crtc(set->crtc)->new_config->has_infoframe ||
> +                 to_intel_crtc(set->crtc)->config.has_infoframe)

Jesse, is "||" correct here? This is bound to force a lot of mode sets.

See https://bugs.freedesktop.org/show_bug.cgi?id=86683

BR,
Jani.


> +                     config->mode_changed = true;
> +     }
>  
>       /* set_mode will free it in the mode_changed case */
>       if (!config->mode_changed)
> -- 
> 1.9.1
>
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-- 
Jani Nikula, Intel Open Source Technology Center
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