gpu: ipu-v3: remove unused functions

ipu_mbus_code_to_colorspace, ipu_stride_to_bytes, and
ipu_pixelformat_is_planar are unused. Remove them.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>

drivers/gpu/ipu-v3/ipu-common.c

@@ -133,73 +133,6 @@ enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
 }
 EXPORT_SYMBOL_GPL(ipu_pixelformat_to_colorspace);
 
-bool ipu_pixelformat_is_planar(u32 pixelformat)
-{
-	switch (pixelformat) {
-	case V4L2_PIX_FMT_YUV420:
-	case V4L2_PIX_FMT_YVU420:
-	case V4L2_PIX_FMT_YUV422P:
-	case V4L2_PIX_FMT_NV12:
-	case V4L2_PIX_FMT_NV21:
-	case V4L2_PIX_FMT_NV16:
-	case V4L2_PIX_FMT_NV61:
-		return true;
-	}
-
-	return false;
-}
-EXPORT_SYMBOL_GPL(ipu_pixelformat_is_planar);
-
-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);
-
-int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat)
-{
-	switch (pixelformat) {
-	case V4L2_PIX_FMT_YUV420:
-	case V4L2_PIX_FMT_YVU420:
-	case V4L2_PIX_FMT_YUV422P:
-	case V4L2_PIX_FMT_NV12:
-	case V4L2_PIX_FMT_NV21:
-	case V4L2_PIX_FMT_NV16:
-	case V4L2_PIX_FMT_NV61:
-		/*
-		 * for the planar YUV formats, the stride passed to
-		 * cpmem must be the stride in bytes of the Y plane.
-		 * And all the planar YUV formats have an 8-bit
-		 * Y component.
-		 */
-		return (8 * pixel_stride) >> 3;
-	case V4L2_PIX_FMT_RGB565:
-	case V4L2_PIX_FMT_YUYV:
-	case V4L2_PIX_FMT_UYVY:
-		return (16 * pixel_stride) >> 3;
-	case V4L2_PIX_FMT_BGR24:
-	case V4L2_PIX_FMT_RGB24:
-		return (24 * pixel_stride) >> 3;
-	case V4L2_PIX_FMT_BGR32:
-	case V4L2_PIX_FMT_RGB32:
-	case V4L2_PIX_FMT_XBGR32:
-	case V4L2_PIX_FMT_XRGB32:
-		return (32 * pixel_stride) >> 3;
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(ipu_stride_to_bytes);
-
 int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
 			    bool hflip, bool vflip)
 {

include/video/imx-ipu-v3.h

@@ -484,9 +484,6 @@ 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);
-int ipu_stride_to_bytes(u32 pixel_stride, 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);
 int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,