Re: [PATCH 6/6] drm/atomic_helper: Make it clear that commit_planes gets the old state

From: Rob Clark <robdclark@gmail.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel.vetter@intel.com>,
	Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
	DRI Development <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 6/6] drm/atomic_helper: Make it clear that commit_planes gets the old state
Date: Wed, 19 Nov 2014 15:29:30 -0500	[thread overview]
Message-ID: <CAF6AEGuHRM9kfgobggD-iKejCmAV5H4ow7SZX30-JSUzX9zvqw@mail.gmail.com> (raw)
In-Reply-To: <1416418691-24747-6-git-send-email-daniel.vetter@ffwll.ch>

On Wed, Nov 19, 2014 at 12:38 PM, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Oversight from my kerneldoc cleanup when doing the original atomic
> helper series - I've only applied this clarification to the modeset
> related helpers, and not the plane update code. Remedy this asap.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Reviewed-by: Rob Clark <robdclark@gmail.com>

> ---
>  drivers/gpu/drm/drm_atomic_helper.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 99095ef147ef..690360038dc1 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -976,18 +976,18 @@ EXPORT_SYMBOL(drm_atomic_helper_prepare_planes);
>  /**
>   * drm_atomic_helper_commit_planes - commit plane state
>   * @dev: DRM device
> - * @state: atomic state
> + * @old_state: atomic state object with old state structures
>   *
>   * This function commits the new plane state using the plane and atomic helper
>   * functions for planes and crtcs. It assumes that the atomic state has already
>   * been pushed into the relevant object state pointers, since this step can no
>   * longer fail.
>   *
> - * It still requires the global state object @state to know which planes and
> + * It still requires the global state object @old_state to know which planes and
>   * crtcs need to be updated though.
>   */
>  void drm_atomic_helper_commit_planes(struct drm_device *dev,
> -                                    struct drm_atomic_state *state)
> +                                    struct drm_atomic_state *old_state)
>  {
>         int nplanes = dev->mode_config.num_total_plane;
>         int ncrtcs = dev->mode_config.num_crtc;
> @@ -995,7 +995,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
>
>         for (i = 0; i < ncrtcs; i++) {
>                 struct drm_crtc_helper_funcs *funcs;
> -               struct drm_crtc *crtc = state->crtcs[i];
> +               struct drm_crtc *crtc = old_state->crtcs[i];
>
>                 if (!crtc)
>                         continue;
> @@ -1010,7 +1010,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
>
>         for (i = 0; i < nplanes; i++) {
>                 struct drm_plane_helper_funcs *funcs;
> -               struct drm_plane *plane = state->planes[i];
> +               struct drm_plane *plane = old_state->planes[i];
>
>                 if (!plane)
>                         continue;
> @@ -1025,7 +1025,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
>
>         for (i = 0; i < ncrtcs; i++) {
>                 struct drm_crtc_helper_funcs *funcs;
> -               struct drm_crtc *crtc = state->crtcs[i];
> +               struct drm_crtc *crtc = old_state->crtcs[i];
>
>                 if (!crtc)
>                         continue;
> --
> 2.1.1
>
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