On Wed, May 11, 2016 at 06:09:20PM +0200, Noralf Trønnes wrote:
> Don't skip drm_bridge_*() calls if encoder->helper_private is NULL.
>
> Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
Applied to drm-misc, thanks.
-Daniel
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 39 ++++++++++++++++---------------------
> 1 file changed, 17 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 027b227..46a3201 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -384,8 +384,6 @@ mode_fixup(struct drm_atomic_state *state)
> */
> encoder = conn_state->best_encoder;
> funcs = encoder->helper_private;
> - if (!funcs)
> - continue;
>
> ret = drm_bridge_mode_fixup(encoder->bridge, &crtc_state->mode,
> &crtc_state->adjusted_mode);
> @@ -394,7 +392,7 @@ mode_fixup(struct drm_atomic_state *state)
> return -EINVAL;
> }
>
> - if (funcs->atomic_check) {
> + if (funcs && funcs->atomic_check) {
> ret = funcs->atomic_check(encoder, crtc_state,
> conn_state);
> if (ret) {
> @@ -402,7 +400,7 @@ mode_fixup(struct drm_atomic_state *state)
> encoder->base.id, encoder->name);
> return ret;
> }
> - } else if (funcs->mode_fixup) {
> + } else if (funcs && funcs->mode_fixup) {
> ret = funcs->mode_fixup(encoder, &crtc_state->mode,
> &crtc_state->adjusted_mode);
> if (!ret) {
> @@ -696,8 +694,6 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> continue;
>
> funcs = encoder->helper_private;
> - if (!funcs)
> - continue;
>
> DRM_DEBUG_ATOMIC("disabling [ENCODER:%d:%s]\n",
> encoder->base.id, encoder->name);
> @@ -709,12 +705,14 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> drm_bridge_disable(encoder->bridge);
>
> /* Right function depends upon target state. */
> - if (connector->state->crtc && funcs->prepare)
> - funcs->prepare(encoder);
> - else if (funcs->disable)
> - funcs->disable(encoder);
> - else if (funcs->dpms)
> - funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
> + if (funcs) {
> + if (connector->state->crtc && funcs->prepare)
> + funcs->prepare(encoder);
> + else if (funcs->disable)
> + funcs->disable(encoder);
> + else if (funcs->dpms)
> + funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
> + }
>
> drm_bridge_post_disable(encoder->bridge);
> }
> @@ -861,9 +859,6 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
>
> encoder = connector->state->best_encoder;
> funcs = encoder->helper_private;
> - if (!funcs)
> - continue;
> -
> new_crtc_state = connector->state->crtc->state;
> mode = &new_crtc_state->mode;
> adjusted_mode = &new_crtc_state->adjusted_mode;
> @@ -878,7 +873,7 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
> * Each encoder has at most one connector (since we always steal
> * it away), so we won't call mode_set hooks twice.
> */
> - if (funcs->mode_set)
> + if (funcs && funcs->mode_set)
> funcs->mode_set(encoder, mode, adjusted_mode);
>
> drm_bridge_mode_set(encoder->bridge, mode, adjusted_mode);
> @@ -969,8 +964,6 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
>
> encoder = connector->state->best_encoder;
> funcs = encoder->helper_private;
> - if (!funcs)
> - continue;
>
> DRM_DEBUG_ATOMIC("enabling [ENCODER:%d:%s]\n",
> encoder->base.id, encoder->name);
> @@ -981,10 +974,12 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
> */
> drm_bridge_pre_enable(encoder->bridge);
>
> - if (funcs->enable)
> - funcs->enable(encoder);
> - else if (funcs->commit)
> - funcs->commit(encoder);
> + if (funcs) {
> + if (funcs->enable)
> + funcs->enable(encoder);
> + else if (funcs->commit)
> + funcs->commit(encoder);
> + }
>
> drm_bridge_enable(encoder->bridge);
> }
> --
> 2.8.2
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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