[PATCH 7/9] gpu: ipu-v3: add YUV 4:4:4 support

[Philipp Zabel]

The IDMAC does support reading and writing DRM_FORMAT_YUV444 and
DRM_FORMAT_YVU444.

Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
---
 drivers/gpu/ipu-v3/ipu-common.c |  2 ++
 drivers/gpu/ipu-v3/ipu-cpmem.c  | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index b9539f7..b7d7bd6 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -88,6 +88,8 @@ enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 
drm_fourcc)
        case DRM_FORMAT_YVU420:
        case DRM_FORMAT_YUV422:
        case DRM_FORMAT_YVU422:
+       case DRM_FORMAT_YUV444:
+       case DRM_FORMAT_YVU444:
        case DRM_FORMAT_NV12:
        case DRM_FORMAT_NV21:
        case DRM_FORMAT_NV16:
diff --git a/drivers/gpu/ipu-v3/ipu-cpmem.c b/drivers/gpu/ipu-v3/ipu-cpmem.c
index e6b8bae..4db7475 100644
--- a/drivers/gpu/ipu-v3/ipu-cpmem.c
+++ b/drivers/gpu/ipu-v3/ipu-cpmem.c
@@ -445,6 +445,16 @@ void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
                v_offset = stride * height;
                u_offset = v_offset + (uv_stride * height);
                break;
+       case DRM_FORMAT_YUV444:
+               uv_stride = stride;
+               u_offset = stride * height;
+               v_offset = u_offset + (uv_stride * height);
+               break;
+       case DRM_FORMAT_YVU444:
+               uv_stride = stride;
+               v_offset = stride * height;
+               u_offset = v_offset + (uv_stride * height);
+               break;
        case DRM_FORMAT_NV12:
        case DRM_FORMAT_NV16:
                uv_stride = stride;
@@ -595,6 +605,13 @@ int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 
drm_fourcc)
                /* burst size */
                ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
                break;
+       case DRM_FORMAT_YUV444:
+       case DRM_FORMAT_YVU444:
+               /* pix format */
+               ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0);
+               /* burst size */
+               ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
+               break;
        case DRM_FORMAT_NV12:
                /* pix format */
                ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 4);
-- 
2.9.3