So this has been merged originally in
commit 83052d4d5cd518332440bb4ee63d68bb5f744e0f
Author: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
Date: Thu Dec 15 15:40:55 2011 +0900
drm: Add multi buffer plane pixel formats
which hasn't seen a lot of review really. The problem is that it's not
a real pixel format, but just a different way to lay out NV12 pixels
in macroblocks, i.e. a tiling format.
The new way of doing this is with the soon-to-be-merge fb modifiers.
This was brough up in some long irc discussion around the entire
topic, as an example of where things have gone wrong. Luckily we can
correct the mistake:
- The kms side support for NV12MT is all dead code because
format_check in drm_crtc.c never accepted NV12MT.
- The gem side for the gsc support doesn't look better: The code
forgets to set the pixel format and makes a big mess with the tiling
mode bits, inadvertedly setting them all.
Conclusion: This never really worked (at least not in upstream) and
hence we can savely correct our mistake here.
Cc: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
Cc: Inki Dae <inki.dae@xxxxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Rob Clark <robclark@xxxxxxxxxxxxxxx>
Cc: Daniel Stone <daniel@xxxxxxxxxxxxx>
Cc: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_fimc.c | 14 ++------------
drivers/gpu/drm/exynos/exynos_drm_gsc.c | 6 ------
drivers/gpu/drm/exynos/exynos_drm_plane.c | 1 -
drivers/gpu/drm/exynos/exynos_mixer.c | 2 --
include/uapi/drm/drm_fourcc.h | 3 ---
5 files changed, 2 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 835b6af00970..842d6b8dc3c4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -461,7 +461,6 @@ static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
break;
case DRM_FORMAT_NV12:
- case DRM_FORMAT_NV12MT:
case DRM_FORMAT_NV16:
cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
EXYNOS_MSCTRL_C_INT_IN_2PLANE);
@@ -511,7 +510,6 @@ static int fimc_src_set_fmt(struct device *dev, u32 fmt)
case DRM_FORMAT_YVU420:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
- case DRM_FORMAT_NV12MT:
cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
break;
default:
@@ -524,10 +522,7 @@ static int fimc_src_set_fmt(struct device *dev, u32 fmt)
cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
- if (fmt == DRM_FORMAT_NV12MT)
- cfg |= EXYNOS_CIDMAPARAM_R_MODE_64X32;
- else
- cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
+ cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
@@ -812,7 +807,6 @@ static int fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
break;
case DRM_FORMAT_NV12:
- case DRM_FORMAT_NV12MT:
case DRM_FORMAT_NV16:
cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
@@ -867,7 +861,6 @@ static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_NV12:
- case DRM_FORMAT_NV12MT:
case DRM_FORMAT_NV21:
cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
break;
@@ -883,10 +876,7 @@ static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
- if (fmt == DRM_FORMAT_NV12MT)
- cfg |= EXYNOS_CIDMAPARAM_W_MODE_64X32;
- else
- cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
+ cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 0261468c8019..8040ed2a831f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -542,9 +542,6 @@ static int gsc_src_set_fmt(struct device *dev, u32 fmt)
cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
GSC_IN_YUV420_2P);
break;
- case DRM_FORMAT_NV12MT:
- cfg |= (GSC_IN_TILE_C_16x8 | GSC_IN_TILE_MODE);
- break;
default:
dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
return -EINVAL;
@@ -809,9 +806,6 @@ static int gsc_dst_set_fmt(struct device *dev, u32 fmt)
cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
GSC_OUT_YUV420_2P);
break;
- case DRM_FORMAT_NV12MT:
- cfg |= (GSC_OUT_TILE_C_16x8 | GSC_OUT_TILE_MODE);
- break;
default:
dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
return -EINVAL;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index c7045a663763..92d75a4eabd7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -30,7 +30,6 @@ static const uint32_t formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_NV12,
- DRM_FORMAT_NV12MT,
};
/*
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 820b76234ef4..5da28443342d 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -417,8 +417,6 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
win_data = &ctx->win_data[win];
switch (win_data->pixel_format) {
- case DRM_FORMAT_NV12MT:
- tiled_mode = true;
case DRM_FORMAT_NV12:
crcb_mode = false;
buf_num = 2;
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 646ae5f39f42..a284f11a8ef5 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -109,9 +109,6 @@
#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 */
-/* special NV12 tiled format */
-#define DRM_FORMAT_NV12MT fourcc_code('T', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane 64x32 macroblocks */
-
/*
* 3 plane YCbCr
* index 0: Y plane, [7:0] Y
--
2.1.4
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