Add simple conversion from pixelformat to total bits-per-pixel.
Signed-off-by: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx>
---
drivers/staging/imx-drm/ipu-v3/ipu-common.c | 27 +++++++++++++++++++++++++++
include/linux/platform_data/imx-ipu-v3.h | 1 +
2 files changed, 28 insertions(+)
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index de66d02..8a03ad2 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -606,6 +606,33 @@ int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat)
}
EXPORT_SYMBOL_GPL(ipu_stride_to_bytes);
+/*
+ * Standard bpp from pixel format.
+ */
+int ipu_bits_per_pixel(u32 pixelformat)
+{
+ switch (pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YVU420:
+ return 12;
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_UYVY:
+ return 16;
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_RGB24:
+ return 24;
+ case V4L2_PIX_FMT_BGR32:
+ case V4L2_PIX_FMT_RGB32:
+ return 32;
+ default:
+ break;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_bits_per_pixel);
+
int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
bool hflip, bool vflip)
{
diff --git a/include/linux/platform_data/imx-ipu-v3.h b/include/linux/platform_data/imx-ipu-v3.h
index 75a6a5d..49e69a9 100644
--- a/include/linux/platform_data/imx-ipu-v3.h
+++ b/include/linux/platform_data/imx-ipu-v3.h
@@ -510,6 +510,7 @@ enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
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);
+int ipu_bits_per_pixel(u32 pixelformat);
bool ipu_pixelformat_is_planar(u32 pixelformat);
int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
bool hflip, bool vflip);
--
1.7.9.5
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