[PATCH 34/72] gpu: ipu-v3: Add ipu_drm_fourcc_is_planar()

[Steve Longerbeam]

Adds ipu_drm_fourcc_is_planar(), which is equivalent to
ipu_pixelformat_is_planar() but accepts a drm fourcc format.

Signed-off-by: Steve Longerbeam <steve_longerbeam at mentor.com>
---
 drivers/gpu/ipu-v3/ipu-common.c |   18 ++++++++++++++++++
 include/video/imx-ipu-v3.h      |    1 +
 2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index ebafcf2..b1f0feb 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -153,6 +153,24 @@ bool ipu_pixelformat_is_planar(u32 pixelformat)
 }
 EXPORT_SYMBOL_GPL(ipu_pixelformat_is_planar);
 
+bool ipu_drm_fourcc_is_planar(u32 drm_fourcc)
+{
+	switch (drm_fourcc) {
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV61:
+		return true;
+	}
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(ipu_drm_fourcc_is_planar);
+
 enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code)
 {
 	switch (mbus_code & 0xf000) {
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 5aaa08d..f48ded6 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -380,6 +380,7 @@ enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
 enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
 int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat);
 bool ipu_pixelformat_is_planar(u32 pixelformat);
+bool ipu_drm_fourcc_is_planar(u32 drm_fourcc);
 int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
 			    bool hflip, bool vflip);
 int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,
-- 
1.7.9.5