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drm/atomic-helper: Add atomic_mode_set helper callback

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Some encoders need more information from crtc and connector state or
connector display info than just the mode during mode setting. This
patch adds an atomic encoder mode setting variant that passes the crtc
state (which contains the modes) and the connector state.

atomic_enable/disable variants that additionally pass crtc and connector
state don't seem to be necessary for any current driver. mode_fixup
already has an atomic equivalent in atomic_check.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Philipp Zabel
2016-07-22 12:20:47 +02:00
parent 3ec2e506f9
commit fe4a11c935
2 changed files with 34 additions and 1 deletions
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6
drivers/gpu/drm/drm_atomic_helper.c
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@@ -886,8 +886,12 @@ 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 && funcs->mode_set)
if (funcs && funcs->atomic_mode_set) {
funcs->atomic_mode_set(encoder, new_crtc_state,
connector->state);
} else if (funcs && funcs->mode_set) {
funcs->mode_set(encoder, mode, adjusted_mode);
}
drm_bridge_mode_set(encoder->bridge, mode, adjusted_mode);
}