Add a helper function to convert DRM rotation to TILER rotation.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com --- drivers/gpu/drm/omapdrm/omap_fb.c | 56 ++++++++++++++++++++++----------------- 1 file changed, 31 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c index c565f5734a53..4fc5db5d2d29 100644 --- a/drivers/gpu/drm/omapdrm/omap_fb.c +++ b/drivers/gpu/drm/omapdrm/omap_fb.c @@ -122,6 +122,36 @@ bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb) return omap_gem_flags(plane->bo) & OMAP_BO_TILED; }
+/* Note: DRM rotates counter-clockwise, TILER & DSS rotates clockwise */ +static uint32_t drm_rotation_to_tiler(unsigned int drm_rot) +{ + uint32_t orient; + + switch (drm_rot & DRM_ROTATE_MASK) { + default: + case DRM_ROTATE_0: + orient = 0; + break; + case DRM_ROTATE_90: + orient = MASK_XY_FLIP | MASK_X_INVERT; + break; + case DRM_ROTATE_180: + orient = MASK_X_INVERT | MASK_Y_INVERT; + break; + case DRM_ROTATE_270: + orient = MASK_XY_FLIP | MASK_Y_INVERT; + break; + } + + if (drm_rot & DRM_REFLECT_X) + orient ^= MASK_X_INVERT; + + if (drm_rot & DRM_REFLECT_Y) + orient ^= MASK_Y_INVERT; + + return orient; +} + /* update ovl info for scanout, handles cases of multi-planar fb's, etc. */ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, @@ -148,31 +178,7 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, uint32_t w = win->src_w; uint32_t h = win->src_h;
- switch (win->rotation & DRM_ROTATE_MASK) { - default: - dev_err(fb->dev->dev, "invalid rotation: %02x", - (uint32_t)win->rotation); - /* fallthru to default to no rotation */ - case 0: - case DRM_ROTATE_0: - orient = 0; - break; - case DRM_ROTATE_90: - orient = MASK_XY_FLIP | MASK_X_INVERT; - break; - case DRM_ROTATE_180: - orient = MASK_X_INVERT | MASK_Y_INVERT; - break; - case DRM_ROTATE_270: - orient = MASK_XY_FLIP | MASK_Y_INVERT; - break; - } - - if (win->rotation & DRM_REFLECT_X) - orient ^= MASK_X_INVERT; - - if (win->rotation & DRM_REFLECT_Y) - orient ^= MASK_Y_INVERT; + orient = drm_rotation_to_tiler(win->rotation);
/* adjust x,y offset for flip/invert: */ if (orient & MASK_XY_FLIP)