target/linux/layerscape/patches-5.4/805-display-0041-drm-fourcc-add-a-10bits-fully-packed-variant-of-NV12.patch

From 3ef66853a02133244bde79b165d8e5063def5ef4 Mon Sep 17 00:00:00 2001
From: Randy Li <ayaka@soulik.info>
Date: Thu, 10 Jan 2019 03:57:10 +0800
Subject: [PATCH] drm/fourcc: add a 10bits fully packed variant of NV12

This pixel format is a fully packed and 10bits variant of NV12.
A luma pixel would take 10bits in memory, without any
filled bits between pixels in a stride.

Signed-off-by: Randy Li <ayaka@soulik.info>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
---
 drivers/gpu/drm/drm_fourcc.c  | 3 +++
 include/uapi/drm/drm_fourcc.h | 8 ++++++++
 2 files changed, 11 insertions(+)

--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -265,6 +265,9 @@ const struct drm_format_info *__drm_form
 		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2,
 		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
 		  .hsub = 2, .vsub = 2, .is_yuv = true},
+		{ .format = DRM_FORMAT_NV12_10LE40,	.depth = 0,  .num_planes = 2,
+		  .char_per_block = { 5, 5, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 },
+		  .hsub = 2, .vsub = 2, .is_yuv = true },
 		{ .format = DRM_FORMAT_P210,		.depth = 0,
 		  .num_planes = 2, .char_per_block = { 2, 4, 0 },
 		  .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 }, .hsub = 2,
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -236,6 +236,14 @@ extern "C" {
 #define DRM_FORMAT_NV61		fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
 #define DRM_FORMAT_NV24		fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
 #define DRM_FORMAT_NV42		fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
+/*
+ * A fully packed  2 plane YCbCr
+ * Y1 0-9, Y2 10-19, Y3 20-29, Y4 20-39
+ * ....
+ * U1V1: 0-19, U2V2: 20-39
+ */
+#define DRM_FORMAT_NV12_10LE40	fourcc_code('R', 'K', '2', '0') /* 2x2 subsampled Cr:Cb plane */
+
 
 /*
  * 2 plane YCbCr MSB aligned