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drm: Make drm_encoder_helper_funcs optional

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Make drm_encoder_helper_funcs and it's functions optional to avoid
having dummy functions.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462454674-2246-3-git-send-email-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes 2016-05-05 15:24:32 +02:00 committed by Daniel Vetter
parent 8863dc7f56
commit 75229eca56
2 changed files with 42 additions and 10 deletions
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11
drivers/gpu/drm/drm_atomic_helper.c
View file

@ -696,6 +696,8 @@ 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);
@ -711,7 +713,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
funcs->prepare(encoder);
else if (funcs->disable)
funcs->disable(encoder);
else
else if (funcs->dpms)
funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
drm_bridge_post_disable(encoder->bridge);
@ -859,6 +861,9 @@ 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;
@ -964,6 +969,8 @@ 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);
@ -976,7 +983,7 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
if (funcs->enable)
funcs->enable(encoder);
else
else if (funcs->commit)
funcs->commit(encoder);
drm_bridge_enable(encoder->bridge);

41
drivers/gpu/drm/drm_crtc_helper.c
View file

@ -170,11 +170,14 @@ drm_encoder_disable(struct drm_encoder *encoder)
{
const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
return;
drm_bridge_disable(encoder->bridge);
if (encoder_funcs->disable)
(*encoder_funcs->disable)(encoder);
else
else if (encoder_funcs->dpms)
(*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
drm_bridge_post_disable(encoder->bridge);
@ -248,6 +251,9 @@ drm_crtc_prepare_encoders(struct drm_device *dev)
drm_for_each_encoder(encoder, dev) {
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
continue;
/* Disable unused encoders */
if (encoder->crtc == NULL)
drm_encoder_disable(encoder);
@ -326,6 +332,10 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
if (encoder->crtc != crtc)
continue;
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
continue;
ret = drm_bridge_mode_fixup(encoder->bridge,
mode, adjusted_mode);
if (!ret) {
@ -360,11 +370,15 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
if (encoder->crtc != crtc)
continue;
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
continue;
drm_bridge_disable(encoder->bridge);
encoder_funcs = encoder->helper_private;
/* Disable the encoders as the first thing we do. */
encoder_funcs->prepare(encoder);
if (encoder_funcs->prepare)
encoder_funcs->prepare(encoder);
drm_bridge_post_disable(encoder->bridge);
}
@ -385,11 +399,15 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
if (encoder->crtc != crtc)
continue;
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
continue;
DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
encoder->base.id, encoder->name,
mode->base.id, mode->name);
encoder_funcs = encoder->helper_private;
encoder_funcs->mode_set(encoder, mode, adjusted_mode);
if (encoder_funcs->mode_set)
encoder_funcs->mode_set(encoder, mode, adjusted_mode);
drm_bridge_mode_set(encoder->bridge, mode, adjusted_mode);
}
@ -402,10 +420,14 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
if (encoder->crtc != crtc)
continue;
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
continue;
drm_bridge_pre_enable(encoder->bridge);
encoder_funcs = encoder->helper_private;
encoder_funcs->commit(encoder);
if (encoder_funcs->commit)
encoder_funcs->commit(encoder);
drm_bridge_enable(encoder->bridge);
}
@ -790,12 +812,15 @@ static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode)
struct drm_bridge *bridge = encoder->bridge;
const struct drm_encoder_helper_funcs *encoder_funcs;
encoder_funcs = encoder->helper_private;
if (!encoder_funcs)
return;
if (mode == DRM_MODE_DPMS_ON)
drm_bridge_pre_enable(bridge);
else
drm_bridge_disable(bridge);
encoder_funcs = encoder->helper_private;
if (encoder_funcs->dpms)
encoder_funcs->dpms(encoder, mode);