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authorVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-07 15:00:24 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-14 22:36:44 +0300
commit4b31a9c77bf87f9d9e957f7a42f84c57a407e1f8 (patch)
treeae63f0bc26497a2c74f9caf642604b037ca19d1a /drivers/gpu/drm/drm_atomic_helper.c
parent00af6729b52ede86a08173c8d5f2c8cd9fa3390d (diff)
downloadlinux-4b31a9c77bf87f9d9e957f7a42f84c57a407e1f8.tar.xz
drm/atomic-helper: Extract drm_atomic_helper_calc_timestamping_constants()
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>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
-rw-r--r--drivers/gpu/drm/drm_atomic_helper.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 9e1ad493e689..191d09ee4c7f 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -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)