[PATCH] drm/fb-helper: Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par()

[Daniel Vetter]

On Wed, Feb 26, 2014 at 10:16:03PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par() to
> make sure extra planes get disabled whenever fbcon takes over.
> 
> Otherwise the code in drm_fb_helper_set_par() was already doing the
> exact same thing as drm_fb_helper_restore_fbdev_mode(), so this doesn't
> change the behaviour in any other way.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Prep work for atomic modeset, yay!

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

> ---
>  drivers/gpu/drm/drm_fb_helper.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index d99df15..ca100d6 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -809,8 +809,6 @@ int drm_fb_helper_set_par(struct fb_info *info)
>  	struct drm_fb_helper *fb_helper = info->par;
>  	struct drm_device *dev = fb_helper->dev;
>  	struct fb_var_screeninfo *var = &info->var;
> -	int ret;
> -	int i;
>  
>  	if (var->pixclock != 0) {
>  		DRM_ERROR("PIXEL CLOCK SET\n");
> @@ -818,13 +816,7 @@ int drm_fb_helper_set_par(struct fb_info *info)
>  	}
>  
>  	drm_modeset_lock_all(dev);
> -	for (i = 0; i < fb_helper->crtc_count; i++) {
> -		ret = drm_mode_set_config_internal(&fb_helper->crtc_info[i].mode_set);
> -		if (ret) {
> -			drm_modeset_unlock_all(dev);
> -			return ret;
> -		}
> -	}
> +	drm_fb_helper_restore_fbdev_mode(fb_helper);
>  	drm_modeset_unlock_all(dev);
>  
>  	if (fb_helper->delayed_hotplug) {
> -- 
> 1.8.3.2
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch