drm/exynos: introduce exynos_drm_plane_state structure
This patch introduces exynos_drm_plane_state structure, which subclasses
drm_plane_state and holds precalculated data suitable for configuring
Exynos hardware.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index dc41ffb..482ed2c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -38,22 +38,44 @@
EXYNOS_DISPLAY_TYPE_VIDI,
};
+struct exynos_drm_rect {
+ unsigned int x, y;
+ unsigned int w, h;
+};
+
+/*
+ * Exynos drm plane state structure.
+ *
+ * @base: plane_state object (contains drm_framebuffer pointer)
+ * @src: rectangle of the source image data to be displayed (clipped to
+ * visible part).
+ * @crtc: rectangle of the target image position on hardware screen
+ * (clipped to visible part).
+ * @h_ratio: horizontal scaling ratio, 16.16 fixed point
+ * @v_ratio: vertical scaling ratio, 16.16 fixed point
+ *
+ * this structure consists plane state data that will be applied to hardware
+ * specific overlay info.
+ */
+
+struct exynos_drm_plane_state {
+ struct drm_plane_state base;
+ struct exynos_drm_rect crtc;
+ struct exynos_drm_rect src;
+ unsigned int h_ratio;
+ unsigned int v_ratio;
+};
+
+static inline struct exynos_drm_plane_state *
+to_exynos_plane_state(struct drm_plane_state *state)
+{
+ return container_of(state, struct exynos_drm_plane_state, base);
+}
+
/*
* Exynos drm common overlay structure.
*
* @base: plane object
- * @src_x: offset x on a framebuffer to be displayed.
- * - the unit is screen coordinates.
- * @src_y: offset y on a framebuffer to be displayed.
- * - the unit is screen coordinates.
- * @src_w: width of a partial image to be displayed from framebuffer.
- * @src_h: height of a partial image to be displayed from framebuffer.
- * @crtc_x: offset x on hardware screen.
- * @crtc_y: offset y on hardware screen.
- * @crtc_w: window width to be displayed (hardware screen).
- * @crtc_h: window height to be displayed (hardware screen).
- * @h_ratio: horizontal scaling ratio, 16.16 fixed point
- * @v_ratio: vertical scaling ratio, 16.16 fixed point
* @zpos: order of overlay layer(z position).
*
* this structure is common to exynos SoC and its contents would be copied
@@ -62,16 +84,6 @@
struct exynos_drm_plane {
struct drm_plane base;
- unsigned int src_x;
- unsigned int src_y;
- unsigned int src_w;
- unsigned int src_h;
- unsigned int crtc_x;
- unsigned int crtc_y;
- unsigned int crtc_w;
- unsigned int crtc_h;
- unsigned int h_ratio;
- unsigned int v_ratio;
unsigned int zpos;
struct drm_framebuffer *pending_fb;
};