We'll construct color pipelines out of drm_colorop by chaining them via the NEXT pointer. NEXT will point to the next drm_colorop in the pipeline, or by 0 if we're at the end of the pipeline.
Signed-off-by: Harry Wentland <[email protected]> Cc: Ville Syrjala <[email protected]> Cc: Pekka Paalanen <[email protected]> Cc: Simon Ser <[email protected]> Cc: Harry Wentland <[email protected]> Cc: Melissa Wen <[email protected]> Cc: Jonas Ådahl <[email protected]> Cc: Sebastian Wick <[email protected]> Cc: Shashank Sharma <[email protected]> Cc: Alexander Goins <[email protected]> Cc: Joshua Ashton <[email protected]> Cc: Michel Dänzer <[email protected]> Cc: Aleix Pol <[email protected]> Cc: Xaver Hugl <[email protected]> Cc: Victoria Brekenfeld <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Uma Shankar <[email protected]> Cc: Naseer Ahmed <[email protected]> Cc: Christopher Braga <[email protected]> --- drivers/gpu/drm/drm_colorop.c | 27 +++++++++++++++++++++++++++ include/drm/drm_colorop.h | 12 ++++++++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/gpu/drm/drm_colorop.c b/drivers/gpu/drm/drm_colorop.c index 409df022b256..a92e170aed87 100644 --- a/drivers/gpu/drm/drm_colorop.c +++ b/drivers/gpu/drm/drm_colorop.c @@ -104,6 +104,15 @@ int drm_colorop_init(struct drm_device *dev, struct drm_colorop *colorop, colorop->curve_1d_type_property, 0); + prop = drm_property_create_object(dev, DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_ATOMIC, + "NEXT", DRM_MODE_OBJECT_COLOROP); + if (!prop) + return -ENOMEM; + colorop->next_property = prop; + drm_object_attach_property(&colorop->base, + colorop->next_property, + 0); + return ret; } EXPORT_SYMBOL(drm_colorop_init); @@ -263,3 +272,21 @@ const char *drm_get_colorop_curve_1d_type_name(enum drm_colorop_curve_1d_type ty return colorop_curve_1d_type_name[type]; } + +/** + * drm_colorop_set_next_property - sets the next pointer + * @colorop: drm colorop + * @next: next colorop + * + * Should be used when constructing the color pipeline + */ +void drm_colorop_set_next_property(struct drm_colorop *colorop, struct drm_colorop *next) +{ + if (!colorop->next_property) + return; + + drm_object_property_set_value(&colorop->base, + colorop->next_property, + next->base.id); +} +EXPORT_SYMBOL(drm_colorop_set_next_property); diff --git a/include/drm/drm_colorop.h b/include/drm/drm_colorop.h index 69636f6752a0..1ddd0e65fe36 100644 --- a/include/drm/drm_colorop.h +++ b/include/drm/drm_colorop.h @@ -162,10 +162,20 @@ struct drm_colorop { */ struct drm_property *curve_1d_type_property; + /** + * @next_property + * + * Read-only property to next colorop in the pipeline + */ + struct drm_property *next_property; + }; #define obj_to_colorop(x) container_of(x, struct drm_colorop, base) + + + /** * drm_crtc_find - look up a Colorop object from its ID * @dev: DRM device @@ -212,5 +222,7 @@ static inline unsigned int drm_colorop_index(const struct drm_colorop *colorop) #define drm_for_each_colorop(colorop, dev) \ list_for_each_entry(colorop, &(dev)->mode_config.colorop_list, head) +void drm_colorop_set_next_property(struct drm_colorop *colorop, struct drm_colorop *next); + #endif /* __DRM_COLOROP_H__ */ -- 2.42.0
