MLK-20326-4: ISI: enable alpha insertion for mem2mem

Enable global alpha insertion for memory to memory function
of ISI

Signed-off-by: Guoniu.Zhou <guoniu.zhou@nxp.com>

diff --git a/drivers/media/platform/imx8/mxc-isi-m2m.c b/drivers/media/platform/imx8/mxc-isi-m2m.c
index f1c87dc..57d82ac 100644 (file)
--- a/drivers/media/platform/imx8/mxc-isi-m2m.c
+++ b/drivers/media/platform/imx8/mxc-isi-m2m.c
@@ -886,6 +886,13 @@ static int mxc_isi_m2m_s_ctrl(struct v4l2_ctrl *ctrl)
                mxc_isi->m2m.vflip = (ctrl->val > 0) ? 1 : 0;
                break;
 
+       case V4L2_CID_ALPHA_COMPONENT:
+               if (ctrl->val < 0 || ctrl->val > 255)
+                       return -EINVAL;
+               mxc_isi->m2m.alpha = ctrl->val;
+               mxc_isi->m2m.alphaen = 1;
+               break;
+
        default:
                dev_err(&mxc_isi->pdev->dev, "%s: Not support %d CID\n", __func__, ctrl->id);
                return -EINVAL;
@@ -914,6 +921,8 @@ static int mxc_isi_m2m_ctrls_create(struct mxc_isi_dev *mxc_isi)
                                        V4L2_CID_HFLIP, 0, 1, 1, 0);
        ctrls->vflip = v4l2_ctrl_new_std(handler, &mxc_isi_m2m_ctrl_ops,
                                        V4L2_CID_VFLIP, 0, 1, 1, 0);
+       ctrls->alpha = v4l2_ctrl_new_std(handler, &mxc_isi_m2m_ctrl_ops,
+                                       V4L2_CID_ALPHA_COMPONENT, 0, 0xff, 1, 0);
 
        if (!handler->error)
                ctrls->ready = true;