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drm/atomic-helper: Extract drm_atomic_helper_calc_timestamping_constants()

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Put the vblank timestamping constants update loop into its own
function. It has no business living inside
drm_atomic_helper_update_legacy_modeset_state() so we'll be wanting
to move it out entirely. As a first step we'll still call it
from drm_atomic_helper_update_legacy_modeset_state().

v2: Drop comment about 'legacy state' in the new function

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200907120026.6360-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2020-09-07 15:00:24 +03:00
parent 00af6729b5
commit 4b31a9c77b
2 changed files with 23 additions and 1 deletions
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21
drivers/gpu/drm/drm_atomic_helper.c
View File

@ -1186,13 +1186,32 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
crtc->x = new_plane_state->src_x >> 16;
crtc->y = new_plane_state->src_y >> 16;
}
}
drm_atomic_helper_calc_timestamping_constants(old_state);
}
EXPORT_SYMBOL(drm_atomic_helper_update_legacy_modeset_state);
/**
* drm_atomic_helper_calc_timestamping_constants - update vblank timestamping constants
* @state: atomic state object
*
* Updates the timestamping constants used for precise vblank timestamps
* by calling drm_calc_timestamping_constants() for all enabled crtcs in @state.
*/
void drm_atomic_helper_calc_timestamping_constants(struct drm_atomic_state *state)
{
struct drm_crtc_state *new_crtc_state;
struct drm_crtc *crtc;
int i;
for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
if (new_crtc_state->enable)
drm_calc_timestamping_constants(crtc,
&new_crtc_state->adjusted_mode);
}
}
EXPORT_SYMBOL(drm_atomic_helper_update_legacy_modeset_state);
EXPORT_SYMBOL(drm_atomic_helper_calc_timestamping_constants);
static void
crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)

3
include/drm/drm_atomic_helper.h
View File

@ -74,6 +74,9 @@ void
drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
struct drm_atomic_state *old_state);
void
drm_atomic_helper_calc_timestamping_constants(struct drm_atomic_state *state);
void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
struct drm_atomic_state *state);
void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,