media: rockchip/vpu: Provide a helper to reset both src and dst formats

When initializing a context, the core wants to reset both src and dst
formats. Right now the order doesn't matter, but if we want to have a
valid default width/height on the non-coded/raw format side (src in
case of encoders, dst in case of decoders), we need to reset those
formats in the right order: first the coded-format side, then the other,
such that width and height on the raw format side can be taken from
the coded format.

Let's provide a helper that will reset both formats and make sure this
is done in the right order.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c

@@ -273,8 +273,7 @@ static int rockchip_vpu_open(struct file *filp)
 	filp->private_data = &ctx->fh;
 	v4l2_fh_add(&ctx->fh);
 
-	rockchip_vpu_reset_dst_fmt(vpu, ctx);
-	rockchip_vpu_reset_src_fmt(vpu, ctx);
+	rockchip_vpu_reset_fmts(ctx);
 
 	ret = rockchip_vpu_ctrls_setup(vpu, ctx);
 	if (ret) {

drivers/staging/media/rockchip/vpu/rockchip_vpu_v4l2.c

@@ -250,7 +250,7 @@ vidioc_try_fmt_out_mplane(struct file *file, void *priv, struct v4l2_format *f)
 	return 0;
 }
 
-void rockchip_vpu_reset_dst_fmt(struct rockchip_vpu_dev *vpu,
+static void rockchip_vpu_reset_dst_fmt(struct rockchip_vpu_dev *vpu,
 				       struct rockchip_vpu_ctx *ctx)
 {
 	struct v4l2_pix_format_mplane *fmt = &ctx->dst_fmt;
@@ -273,7 +273,7 @@ void rockchip_vpu_reset_dst_fmt(struct rockchip_vpu_dev *vpu,
 		fmt->width * fmt->height * ctx->vpu_dst_fmt->max_depth;
 }
 
-void rockchip_vpu_reset_src_fmt(struct rockchip_vpu_dev *vpu,
+static void rockchip_vpu_reset_src_fmt(struct rockchip_vpu_dev *vpu,
 				       struct rockchip_vpu_ctx *ctx)
 {
 	struct v4l2_pix_format_mplane *fmt = &ctx->src_fmt;
@@ -294,6 +294,12 @@ void rockchip_vpu_reset_src_fmt(struct rockchip_vpu_dev *vpu,
 			    fmt->height);
 }
 
+void rockchip_vpu_reset_fmts(struct rockchip_vpu_ctx *ctx)
+{
+	rockchip_vpu_reset_dst_fmt(ctx->dev, ctx);
+	rockchip_vpu_reset_src_fmt(ctx->dev, ctx);
+}
+
 static int
 vidioc_s_fmt_out_mplane(struct file *file, void *priv, struct v4l2_format *f)
 {

drivers/staging/media/rockchip/vpu/rockchip_vpu_v4l2.h

@@ -21,9 +21,6 @@
 extern const struct v4l2_ioctl_ops rockchip_vpu_ioctl_ops;
 extern const struct vb2_ops rockchip_vpu_queue_ops;
 
-void rockchip_vpu_reset_src_fmt(struct rockchip_vpu_dev *vpu,
-				struct rockchip_vpu_ctx *ctx);
-void rockchip_vpu_reset_dst_fmt(struct rockchip_vpu_dev *vpu,
-				struct rockchip_vpu_ctx *ctx);
+void rockchip_vpu_reset_fmts(struct rockchip_vpu_ctx *ctx);
 
 #endif /* ROCKCHIP_VPU_V4L2_H_ */