From e1e9733cd37908a9ba61e29154561f0c81420e06 Mon Sep 17 00:00:00 2001
From: Philipp Zabel
Date: Wed, 17 Sep 2014 15:44:54 +0200
Subject: gpu: ipu-v3: Add support for double read/write reduction
Allow to skip writing odd chroma rows by setting the RDRW bit for
4:2:0 chroma subsampled formats for any IDMAC write channel. This
also allows to skip reading odd rows for the VDIC read channel.
Signed-off-by: Philipp Zabel
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include/video')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 8cb07680fb41..ce4c07688b13 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -250,6 +250,7 @@ struct ipu_image {
void ipu_cpmem_zero(struct ipuv3_channel *ch);
void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres);
+void ipu_cpmem_skip_odd_chroma_rows(struct ipuv3_channel *ch);
void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride);
void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
--
cgit 1.4.1