media: s5p-mfc: Add support for UHD encoding.

MFC driver had restriction on max resolution of 1080p, updated it for
UHD. Added corresponding support to set recommended profile and level
for H264 in UHD scenario.

Cc: linux-fsd@tesla.com
Signed-off-by: Smitha T Murthy <smithatmurthy@gmail.com>
Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Author: Aakarsh Jain

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c

@@ -1461,9 +1461,12 @@ static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 			mfc_err("Unsupported format by this MFC version.\n");
 			return -EINVAL;
 		}
-
-		v4l_bound_align_image(&pix_fmt_mp->width, 8, 1920, 1,
-			&pix_fmt_mp->height, 4, 1080, 1, 0);
+		if (IS_MFCV12(dev))
+			v4l_bound_align_image(&pix_fmt_mp->width, 8, 3840, 1, &pix_fmt_mp
+					->height, 4, 2160, 1, 0);
+		else
+			v4l_bound_align_image(&pix_fmt_mp->width, 8, 1920, 1, &pix_fmt_mp
+					->height, 4, 1080, 1, 0);
 	} else {
 		mfc_err("invalid buf type\n");
 		return -EINVAL;

drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c

@@ -1071,6 +1071,18 @@ static int s5p_mfc_set_enc_params_h264(struct s5p_mfc_ctx *ctx)
 	reg |= ((p->num_b_frame & 0x3) << 16);
 	writel(reg, mfc_regs->e_gop_config);
 
+	/* UHD encoding case */
+	if (ctx->img_width == 3840 && ctx->img_height == 2160) {
+		if (p_h264->level < 51) {
+			mfc_debug(2, "Set Level 5.1 for UHD\n");
+			p_h264->level = 51;
+		}
+		if (p_h264->profile != 0x2) {
+			mfc_debug(2, "Set High profile for UHD\n");
+			p_h264->profile = 0x2;
+		}
+	}
+
 	/* profile & level */
 	reg = 0;
 	/** level */