@@ -472,6 +472,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
unsigned int hdr_pitch = pending->hdr_pitch;
unsigned int fmt = pending->format;
unsigned int offset = (pending->y << 16) | pending->x;
+ unsigned int rotation = pending->rotation;
unsigned int src_size = (pending->height << 16) | pending->width;
unsigned int blend_mode = state->base.pixel_blend_mode;
unsigned int ignore_pixel_alpha = 0;
@@ -513,12 +514,19 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
ignore_pixel_alpha = OVL_CONST_BLEND;
}
- if (pending->rotation & DRM_MODE_REFLECT_Y) {
+ /*
+ * Treat rotate 180 as flip x + flip y, and XOR the original rotation value
+ * to flip x + flip y to support both in the same time.
+ */
+ if (rotation & DRM_MODE_ROTATE_180)
+ rotation ^= DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
+
+ if (rotation & DRM_MODE_REFLECT_Y) {
con |= OVL_CON_VIRT_FLIP;
addr += (pending->height - 1) * pending->pitch;
}
- if (pending->rotation & DRM_MODE_REFLECT_X) {
+ if (rotation & DRM_MODE_REFLECT_X) {
con |= OVL_CON_HORZ_FLIP;
addr += pending->pitch - 1;
}
mediatek-drm driver reported the capability of 180-degree rotation by adding `DRM_MODE_ROTATE_180` to the plane property, as flip-x combined with flip-y equals a 180-degree rotation. However, we did not handle the rotation property in the driver and lead to rotation issues. Fixes: 74608d8feefd ("drm/mediatek: Add DRM_MODE_ROTATE_0 to rotation property") Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)