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Merge pull request #4250 from jernejsk/colours

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Allwinner: Linux: Improve colour management
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MilhouseVH 2020-03-09 18:31:31 +00:00 committed by GitHub
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3 changed files with 647 additions and 48 deletions
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497
projects/Allwinner/patches/linux/0001-backport-from-5.6.patch
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@ -1900,3 +1900,500 @@ index c17d30e74bb1..ce497d0197df 100644
--
2.24.1
From deda8aa0bedde60a7a8e0b471acad67bce60670b Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Tue, 18 Feb 2020 17:52:59 +0100
Subject: [PATCH 1/7] drm/sun4i: de2/de3: Remove unsupported VI layer formats
YUV444 and YVU444 are planar formats, but HW format RGB888 is packed.
This means that those two mappings were never correct. Remove them.
Fixes: 60a3dcf96aa8 ("drm/sun4i: Add DE2 definitions for YUV formats")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun8i_mixer.c | 12 ------------
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 2 --
2 files changed, 14 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 7c24f8f832a5..3a78dbbceb8a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -196,12 +196,6 @@ static const struct de2_fmt_info de2_formats[] = {
.rgb = false,
.csc = SUN8I_CSC_MODE_YUV2RGB,
},
- {
- .drm_fmt = DRM_FORMAT_YUV444,
- .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
- .rgb = true,
- .csc = SUN8I_CSC_MODE_YUV2RGB,
- },
{
.drm_fmt = DRM_FORMAT_YUV422,
.de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
@@ -220,12 +214,6 @@ static const struct de2_fmt_info de2_formats[] = {
.rgb = false,
.csc = SUN8I_CSC_MODE_YUV2RGB,
},
- {
- .drm_fmt = DRM_FORMAT_YVU444,
- .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
- .rgb = true,
- .csc = SUN8I_CSC_MODE_YVU2RGB,
- },
{
.drm_fmt = DRM_FORMAT_YVU422,
.de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 42d445d23773..6a244d6fafd9 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -431,11 +431,9 @@ static const u32 sun8i_vi_layer_formats[] = {
DRM_FORMAT_YUV411,
DRM_FORMAT_YUV420,
DRM_FORMAT_YUV422,
- DRM_FORMAT_YUV444,
DRM_FORMAT_YVU411,
DRM_FORMAT_YVU420,
DRM_FORMAT_YVU422,
- DRM_FORMAT_YVU444,
};
struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
--
2.25.1
From 3d1e6278957050416a425e0b2f3108c1e070ef4f Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Mon, 17 Feb 2020 17:32:10 +0100
Subject: [PATCH 2/7] drm/sun4i: Add separate DE3 VI layer formats
DE3 VI layers support alpha blending, but DE2 VI layers do not.
Additionally, DE3 VI layers support 10-bit RGB and YUV formats.
Make a separate list for DE3.
Fixes: c50519e6db4d ("drm/sun4i: Add basic support for DE3")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun8i_mixer.c | 36 ++++++++++++++++
drivers/gpu/drm/sun4i/sun8i_mixer.h | 11 +++++
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 58 ++++++++++++++++++++++++--
3 files changed, 102 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 3a78dbbceb8a..655445bfe64a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -148,6 +148,30 @@ static const struct de2_fmt_info de2_formats[] = {
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ .drm_fmt = DRM_FORMAT_ARGB2101010,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB2101010,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_ABGR2101010,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR2101010,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_RGBA1010102,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA1010102,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_BGRA1010102,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA1010102,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_UYVY,
.de2_fmt = SUN8I_MIXER_FBFMT_UYVY,
@@ -232,6 +256,18 @@ static const struct de2_fmt_info de2_formats[] = {
.rgb = false,
.csc = SUN8I_CSC_MODE_YVU2RGB,
},
+ {
+ .drm_fmt = DRM_FORMAT_P010,
+ .de2_fmt = SUN8I_MIXER_FBFMT_P010_YUV,
+ .rgb = false,
+ .csc = SUN8I_CSC_MODE_YUV2RGB,
+ },
+ {
+ .drm_fmt = DRM_FORMAT_P210,
+ .de2_fmt = SUN8I_MIXER_FBFMT_P210_YUV,
+ .rgb = false,
+ .csc = SUN8I_CSC_MODE_YUV2RGB,
+ },
};
const struct de2_fmt_info *sun8i_mixer_format_info(u32 format)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index c6cc94057faf..345b28b0a80a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -93,6 +93,10 @@
#define SUN8I_MIXER_FBFMT_ABGR1555 17
#define SUN8I_MIXER_FBFMT_RGBA5551 18
#define SUN8I_MIXER_FBFMT_BGRA5551 19
+#define SUN8I_MIXER_FBFMT_ARGB2101010 20
+#define SUN8I_MIXER_FBFMT_ABGR2101010 21
+#define SUN8I_MIXER_FBFMT_RGBA1010102 22
+#define SUN8I_MIXER_FBFMT_BGRA1010102 23
#define SUN8I_MIXER_FBFMT_YUYV 0
#define SUN8I_MIXER_FBFMT_UYVY 1
@@ -109,6 +113,13 @@
/* format 12 is semi-planar YUV411 UVUV */
/* format 13 is semi-planar YUV411 VUVU */
#define SUN8I_MIXER_FBFMT_YUV411 14
+/* format 15 doesn't exist */
+/* format 16 is P010 YVU */
+#define SUN8I_MIXER_FBFMT_P010_YUV 17
+/* format 18 is P210 YVU */
+#define SUN8I_MIXER_FBFMT_P210_YUV 19
+/* format 20 is packed YVU444 10-bit */
+/* format 21 is packed YUV444 10-bit */
/*
* Sub-engines listed bellow are unused for now. The EN registers are here only
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 6a244d6fafd9..6c0084a3c3d7 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -436,24 +436,76 @@ static const u32 sun8i_vi_layer_formats[] = {
DRM_FORMAT_YVU422,
};
+static const u32 sun8i_vi_layer_de3_formats[] = {
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_ABGR2101010,
+ DRM_FORMAT_ABGR4444,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ARGB2101010,
+ DRM_FORMAT_ARGB4444,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_BGR565,
+ DRM_FORMAT_BGR888,
+ DRM_FORMAT_BGRA1010102,
+ DRM_FORMAT_BGRA5551,
+ DRM_FORMAT_BGRA4444,
+ DRM_FORMAT_BGRA8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_RGBA1010102,
+ DRM_FORMAT_RGBA4444,
+ DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_RGBA8888,
+ DRM_FORMAT_RGBX8888,
+ DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_XRGB8888,
+
+ DRM_FORMAT_NV16,
+ DRM_FORMAT_NV12,
+ DRM_FORMAT_NV21,
+ DRM_FORMAT_NV61,
+ DRM_FORMAT_P010,
+ DRM_FORMAT_P210,
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YVYU,
+ DRM_FORMAT_YUV411,
+ DRM_FORMAT_YUV420,
+ DRM_FORMAT_YUV422,
+ DRM_FORMAT_YVU411,
+ DRM_FORMAT_YVU420,
+ DRM_FORMAT_YVU422,
+};
+
struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
struct sun8i_mixer *mixer,
int index)
{
u32 supported_encodings, supported_ranges;
+ unsigned int plane_cnt, format_count;
struct sun8i_vi_layer *layer;
- unsigned int plane_cnt;
+ const u32 *formats;
int ret;
layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);
if (!layer)
return ERR_PTR(-ENOMEM);
+ if (mixer->cfg->is_de3) {
+ formats = sun8i_vi_layer_de3_formats;
+ format_count = ARRAY_SIZE(sun8i_vi_layer_de3_formats);
+ } else {
+ formats = sun8i_vi_layer_formats;
+ format_count = ARRAY_SIZE(sun8i_vi_layer_formats);
+ }
+
/* possible crtcs are set later */
ret = drm_universal_plane_init(drm, &layer->plane, 0,
&sun8i_vi_layer_funcs,
- sun8i_vi_layer_formats,
- ARRAY_SIZE(sun8i_vi_layer_formats),
+ formats, format_count,
NULL, DRM_PLANE_TYPE_OVERLAY, NULL);
if (ret) {
dev_err(drm->dev, "Couldn't initialize layer\n");
--
2.25.1
From 9cdf885761bd5fc00ad3a34249b083999e4a0b8c Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Mon, 17 Feb 2020 18:02:46 +0100
Subject: [PATCH 3/7] drm/sun4i: Fix DE2 VI layer format support
DE2 VI layer doesn't support blending which means alpha channel is
ignored. Replace all formats with alpha with "don't care" (X) channel.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun8i_mixer.c | 56 ++++++++++++++++++++++++++
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 22 +++++-----
2 files changed, 67 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 655445bfe64a..4a64f7ae437a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -106,48 +106,104 @@ static const struct de2_fmt_info de2_formats[] = {
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_XRGB4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_ABGR4444,
.de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_XBGR4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_RGBA4444,
.de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_RGBX4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_BGRA4444,
.de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_BGRX4444,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_ARGB1555,
.de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_XRGB1555,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_ABGR1555,
.de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_XBGR1555,
+ .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_RGBA5551,
.de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_RGBX5551,
+ .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_BGRA5551,
.de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
.rgb = true,
.csc = SUN8I_CSC_MODE_OFF,
},
+ {
+ /* for DE2 VI layer which ignores alpha */
+ .drm_fmt = DRM_FORMAT_BGRX5551,
+ .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
+ .rgb = true,
+ .csc = SUN8I_CSC_MODE_OFF,
+ },
{
.drm_fmt = DRM_FORMAT_ARGB2101010,
.de2_fmt = SUN8I_MIXER_FBFMT_ARGB2101010,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 6c0084a3c3d7..b8398ca18b0f 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -398,26 +398,26 @@ static const struct drm_plane_funcs sun8i_vi_layer_funcs = {
};
/*
- * While all RGB formats are supported, VI planes don't support
- * alpha blending, so there is no point having formats with alpha
- * channel if their opaque analog exist.
+ * While DE2 VI layer supports same RGB formats as UI layer, alpha
+ * channel is ignored. This structure lists all unique variants
+ * where alpha channel is replaced with "don't care" (X) channel.
*/
static const u32 sun8i_vi_layer_formats[] = {
- DRM_FORMAT_ABGR1555,
- DRM_FORMAT_ABGR4444,
- DRM_FORMAT_ARGB1555,
- DRM_FORMAT_ARGB4444,
DRM_FORMAT_BGR565,
DRM_FORMAT_BGR888,
- DRM_FORMAT_BGRA5551,
- DRM_FORMAT_BGRA4444,
+ DRM_FORMAT_BGRX4444,
+ DRM_FORMAT_BGRX5551,
DRM_FORMAT_BGRX8888,
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB888,
- DRM_FORMAT_RGBA4444,
- DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_RGBX4444,
+ DRM_FORMAT_RGBX5551,
DRM_FORMAT_RGBX8888,
+ DRM_FORMAT_XBGR1555,
+ DRM_FORMAT_XBGR4444,
DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_XRGB1555,
+ DRM_FORMAT_XRGB4444,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_NV16,
--
2.25.1
From ad659ce8a20e12b2508c977818e8c21487f67793 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Sat, 29 Feb 2020 09:49:49 +0100
Subject: [PATCH v2 1/4] drm/bridge: dw-hdmi: fix AVI frame colorimetry
CTA-861-F explicitly states that for RGB colorspace colorimetry should
be set to "none". Fix that.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Fixes: def23aa7e982 ("drm: bridge: dw-hdmi: Switch to V4L bus format and encodings")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 46 +++++++++++++----------
1 file changed, 26 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 67fca439bbfb..24965e53d351 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1624,28 +1624,34 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
frame.colorspace = HDMI_COLORSPACE_RGB;
/* Set up colorimetry */
- switch (hdmi->hdmi_data.enc_out_encoding) {
- case V4L2_YCBCR_ENC_601:
- if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
- frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
- else
+ if (!hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+ switch (hdmi->hdmi_data.enc_out_encoding) {
+ case V4L2_YCBCR_ENC_601:
+ if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
+ frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+ else
+ frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+ break;
+ case V4L2_YCBCR_ENC_709:
+ if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
+ frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+ else
+ frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
+ break;
+ default: /* Carries no data */
frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+ break;
+ }
+ } else {
+ frame.colorimetry = HDMI_COLORIMETRY_NONE;
frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
- break;
- case V4L2_YCBCR_ENC_709:
- if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
- frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
- else
- frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
- frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
- break;
- default: /* Carries no data */
- frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
- frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
- break;
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
}
frame.scan_mode = HDMI_SCAN_MODE_NONE;
--
2.25.1

155
projects/Allwinner/patches/linux/0003-hdmi-improvements.patch
View File

@ -555,22 +555,33 @@ index dff27934287c..c922639e25eb 100644
ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
From 59c0e09a4133d36772397e59224fd32f1410cc26 Mon Sep 17 00:00:00 2001
From cb6130315f4ae856051725b2de4e208ed90eb740 Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Sun, 8 Dec 2019 23:41:44 +0000
Subject: [PATCH] WIP: drm: dw-hdmi: do not force none scan mode
Subject: [PATCH v2 2/4] drm/bridge: dw-hdmi: do not force "none" scan mode
Setting scan mode to "none" confuses some TVs like LG B8, which randomly
change overscan percentage over time. Digital outputs like HDMI and DVI,
handled by this controller, don't really need overscan, so we can always
set scan mode to underscan. Actually, this is exactly what
drm_hdmi_avi_infoframe_from_display_mode() already does, so we can just
remove offending line.
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
[updated commit message]
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index c922639e25eb..ea4f940406fc 100644
index 24965e53d351..de2c7ec887c8 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1658,8 +1658,6 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
break;
@@ -1654,8 +1654,6 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
}
- frame.scan_mode = HDMI_SCAN_MODE_NONE;
@ -578,4 +589,138 @@ index c922639e25eb..ea4f940406fc 100644
/*
* The Designware IP uses a different byte format from standard
* AVI info frames, though generally the bits are in the correct
--
2.25.1
From 3043a1caa3f6d26128c746b991d086bbb85d50c2 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Sat, 29 Feb 2020 16:23:38 +0100
Subject: [PATCH v2 3/4] drm/bridge: dw-hdmi: Add support for RGB limited range
CEA 861 standard requestis that RGB quantization range is "limited" for
CEA modes. Support that by adding CSC matrix which downscales values.
This allows proper color reproduction on TV and PC monitor at the same
time. In future, override property can be added, like "Broadcast RGB"
in i915 driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 63 +++++++++++++++++------
1 file changed, 46 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index de2c7ec887c8..c8a02e5b5e1b 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -92,6 +92,12 @@ static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
{ 0x6756, 0x78ab, 0x2000, 0x0200 }
};
+static const u16 csc_coeff_rgb_full_to_rgb_limited[3][4] = {
+ { 0x1b7c, 0x0000, 0x0000, 0x0020 },
+ { 0x0000, 0x1b7c, 0x0000, 0x0020 },
+ { 0x0000, 0x0000, 0x1b7c, 0x0020 }
+};
+
struct hdmi_vmode {
bool mdataenablepolarity;
@@ -109,6 +115,7 @@ struct hdmi_data_info {
unsigned int pix_repet_factor;
unsigned int hdcp_enable;
struct hdmi_vmode video_mode;
+ bool rgb_limited_range;
};
struct dw_hdmi_i2c {
@@ -956,7 +963,11 @@ static void hdmi_video_sample(struct dw_hdmi *hdmi)
static int is_color_space_conversion(struct dw_hdmi *hdmi)
{
- return hdmi->hdmi_data.enc_in_bus_format != hdmi->hdmi_data.enc_out_bus_format;
+ return (hdmi->hdmi_data.enc_in_bus_format !=
+ hdmi->hdmi_data.enc_out_bus_format) ||
+ (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format) &&
+ hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) &&
+ hdmi->hdmi_data.rgb_limited_range);
}
static int is_color_space_decimation(struct dw_hdmi *hdmi)
@@ -986,25 +997,27 @@ static int is_color_space_interpolation(struct dw_hdmi *hdmi)
static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi)
{
const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
+ bool is_input_rgb, is_output_rgb;
unsigned i;
u32 csc_scale = 1;
- if (is_color_space_conversion(hdmi)) {
- if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
- if (hdmi->hdmi_data.enc_out_encoding ==
- V4L2_YCBCR_ENC_601)
- csc_coeff = &csc_coeff_rgb_out_eitu601;
- else
- csc_coeff = &csc_coeff_rgb_out_eitu709;
- } else if (hdmi_bus_fmt_is_rgb(
- hdmi->hdmi_data.enc_in_bus_format)) {
- if (hdmi->hdmi_data.enc_out_encoding ==
- V4L2_YCBCR_ENC_601)
- csc_coeff = &csc_coeff_rgb_in_eitu601;
- else
- csc_coeff = &csc_coeff_rgb_in_eitu709;
- csc_scale = 0;
- }
+ is_input_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format);
+ is_output_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format);
+
+ if (!is_input_rgb && is_output_rgb) {
+ if (hdmi->hdmi_data.enc_out_encoding == V4L2_YCBCR_ENC_601)
+ csc_coeff = &csc_coeff_rgb_out_eitu601;
+ else
+ csc_coeff = &csc_coeff_rgb_out_eitu709;
+ } else if (is_input_rgb && !is_output_rgb) {
+ if (hdmi->hdmi_data.enc_out_encoding == V4L2_YCBCR_ENC_601)
+ csc_coeff = &csc_coeff_rgb_in_eitu601;
+ else
+ csc_coeff = &csc_coeff_rgb_in_eitu709;
+ csc_scale = 0;
+ } else if (is_input_rgb && is_output_rgb &&
+ hdmi->hdmi_data.rgb_limited_range) {
+ csc_coeff = &csc_coeff_rgb_full_to_rgb_limited;
}
/* The CSC registers are sequential, alternating MSB then LSB */
@@ -1614,6 +1627,18 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
drm_hdmi_avi_infoframe_from_display_mode(&frame,
&hdmi->connector, mode);
+ if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+ drm_hdmi_avi_infoframe_quant_range(&frame, &hdmi->connector,
+ mode,
+ hdmi->hdmi_data.rgb_limited_range ?
+ HDMI_QUANTIZATION_RANGE_LIMITED :
+ HDMI_QUANTIZATION_RANGE_FULL);
+ } else {
+ frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ frame.ycc_quantization_range =
+ HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+ }
+
if (hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format))
frame.colorspace = HDMI_COLORSPACE_YUV444;
else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format))
@@ -2099,6 +2124,10 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
/* TOFIX: Default to RGB888 output format */
hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+ hdmi->hdmi_data.rgb_limited_range = hdmi->sink_is_hdmi &&
+ drm_default_rgb_quant_range(mode) ==
+ HDMI_QUANTIZATION_RANGE_LIMITED;
+
hdmi->hdmi_data.pix_repet_factor = 0;
hdmi->hdmi_data.hdcp_enable = 0;
hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
--
2.25.1

43
projects/Allwinner/patches/linux/0013-force-full-range.patch
View File

@ -1,43 +0,0 @@
From c8217462c6c143a9fada595bf3e34af83eb15f87 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Thu, 27 Jun 2019 21:50:16 +0200
Subject: [PATCH 4/4] HACK: Force full range
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun8i_csc.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c b/drivers/gpu/drm/sun4i/sun8i_csc.c
index 70c792d052fe..7b60fce1a8c6 100644
--- a/drivers/gpu/drm/sun4i/sun8i_csc.c
+++ b/drivers/gpu/drm/sun4i/sun8i_csc.c
@@ -160,10 +160,10 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base,
switch (mode) {
case SUN8I_CSC_MODE_YUV2RGB:
- table = yuv2rgb[range][encoding];
+ table = yuv2rgb[DRM_COLOR_YCBCR_FULL_RANGE][encoding];
break;
case SUN8I_CSC_MODE_YVU2RGB:
- table = yvu2rgb[range][encoding];
+ table = yvu2rgb[DRM_COLOR_YCBCR_FULL_RANGE][encoding];
break;
default:
DRM_WARN("Wrong CSC mode specified.\n");
@@ -184,10 +184,10 @@ static void sun8i_de3_ccsc_set_coefficients(struct regmap *map, int layer,
switch (mode) {
case SUN8I_CSC_MODE_YUV2RGB:
- table = yuv2rgb_de3[range][encoding];
+ table = yuv2rgb_de3[DRM_COLOR_YCBCR_FULL_RANGE][encoding];
break;
case SUN8I_CSC_MODE_YVU2RGB:
- table = yvu2rgb_de3[range][encoding];
+ table = yvu2rgb_de3[DRM_COLOR_YCBCR_FULL_RANGE][encoding];
break;
default:
DRM_WARN("Wrong CSC mode specified.\n");
--
2.22.0