gpu: ipu-v3: Add ipu_mbus_code_to_colorspace()

Add ipu_mbus_code_to_colorspace() to find ipu_color_space from a
media bus pixel format code.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index f5a4e1a..49ee990 100644 (file)
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -101,6 +101,19 @@ enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
 }
 EXPORT_SYMBOL_GPL(ipu_pixelformat_to_colorspace);
 
+enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code)
+{
+       switch (mbus_code & 0xf000) {
+       case 0x1000:
+               return IPUV3_COLORSPACE_RGB;
+       case 0x2000:
+               return IPUV3_COLORSPACE_YUV;
+       default:
+               return IPUV3_COLORSPACE_UNKNOWN;
+       }
+}
+EXPORT_SYMBOL_GPL(ipu_mbus_code_to_colorspace);
+
 struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned num)
 {
        struct ipuv3_channel *channel;

diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 49e5954..7c97cca 100644 (file)
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -300,6 +300,7 @@ int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
 
 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);
 
 struct ipu_client_platformdata {
        int csi;