* [PATCH 0/3] drm/sun4i: Add support for color encoding and range
@ 2019-07-13 12:03 Jernej Skrabec
2019-07-13 12:03 ` [PATCH 1/3] drm/sun4i: Introduce color encoding and range properties Jernej Skrabec
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: Jernej Skrabec @ 2019-07-13 12:03 UTC (permalink / raw)
To: maxime.ripard, wens
Cc: airlied, linux-kernel, dri-devel, linux-sunxi, daniel, linux-arm-kernel
In order to correctly convert image between YUV and RGB, you have to
know color encoding and color range. This patch set adds appropriate
properties and considers them when choosing CSC conversion matrix for
DE2 and DE3.
Note that this is only the half of needed changes when using HDMI output.
DW HDMI bridge driver has to be extended to have a property to select
limited (TVs) or full (PC monitors) range. But that will be done at a
later time.
Please take a look.
Best regards,
Jernej
Jernej Skrabec (3):
drm/sun4i: Introduce color encoding and range properties
drm/sun4i: sun8i_csc: Simplify register writes
drm/sun4i: sun8i-csc: Add support for color encoding and range
drivers/gpu/drm/sun4i/sun8i_csc.c | 155 +++++++++++++++++++------
drivers/gpu/drm/sun4i/sun8i_csc.h | 6 +-
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 21 +++-
3 files changed, 146 insertions(+), 36 deletions(-)
--
2.22.0
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^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH 1/3] drm/sun4i: Introduce color encoding and range properties 2019-07-13 12:03 [PATCH 0/3] drm/sun4i: Add support for color encoding and range Jernej Skrabec @ 2019-07-13 12:03 ` Jernej Skrabec 2019-07-13 12:03 ` [PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes Jernej Skrabec ` (2 subsequent siblings) 3 siblings, 0 replies; 6+ messages in thread From: Jernej Skrabec @ 2019-07-13 12:03 UTC (permalink / raw) To: maxime.ripard, wens Cc: airlied, linux-kernel, dri-devel, linux-sunxi, daniel, linux-arm-kernel In order to correctly convert YUV color space to RGB, we have to know color encoding and range. Introduce these two properties using helper method. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> --- drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c index bd0e6a52d1d8..240a800217df 100644 --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c @@ -441,6 +441,7 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm, struct sun8i_mixer *mixer, int index) { + u32 supported_encodings, supported_ranges; struct sun8i_vi_layer *layer; unsigned int plane_cnt; int ret; @@ -469,6 +470,22 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm, return ERR_PTR(ret); } + supported_encodings = BIT(DRM_COLOR_YCBCR_BT601) | + BIT(DRM_COLOR_YCBCR_BT709); + + supported_ranges = BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE); + + ret = drm_plane_create_color_properties(&layer->plane, + supported_encodings, + supported_ranges, + DRM_COLOR_YCBCR_BT709, + DRM_COLOR_YCBCR_LIMITED_RANGE); + if (ret) { + dev_err(drm->dev, "Couldn't add encoding and range properties!\n"); + return ERR_PTR(ret); + } + drm_plane_helper_add(&layer->plane, &sun8i_vi_layer_helper_funcs); layer->mixer = mixer; layer->channel = index; -- 2.22.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes 2019-07-13 12:03 [PATCH 0/3] drm/sun4i: Add support for color encoding and range Jernej Skrabec 2019-07-13 12:03 ` [PATCH 1/3] drm/sun4i: Introduce color encoding and range properties Jernej Skrabec @ 2019-07-13 12:03 ` Jernej Skrabec 2019-07-13 12:03 ` [PATCH 3/3] drm/sun4i: sun8i-csc: Add support for color encoding and range Jernej Skrabec 2019-07-20 5:42 ` [PATCH 0/3] drm/sun4i: " Maxime Ripard 3 siblings, 0 replies; 6+ messages in thread From: Jernej Skrabec @ 2019-07-13 12:03 UTC (permalink / raw) To: maxime.ripard, wens Cc: airlied, linux-kernel, dri-devel, linux-sunxi, daniel, linux-arm-kernel It turns out addition of 0x200 to constant parts (+0.5) is not really necessary. Besides, we can consider that before and fix value in CSC matrix. This simplifies register writes quiet a bit. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> --- drivers/gpu/drm/sun4i/sun8i_csc.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c b/drivers/gpu/drm/sun4i/sun8i_csc.c index b8c059f1a118..e07b7876d89b 100644 --- a/drivers/gpu/drm/sun4i/sun8i_csc.c +++ b/drivers/gpu/drm/sun4i/sun8i_csc.c @@ -69,7 +69,7 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, enum sun8i_csc_mode mode) { const u32 *table; - int i, data; + u32 base_reg; switch (mode) { case SUN8I_CSC_MODE_YUV2RGB: @@ -83,13 +83,8 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, return; } - for (i = 0; i < 12; i++) { - data = table[i]; - /* For some reason, 0x200 must be added to constant parts */ - if (((i + 1) & 3) == 0) - data += 0x200; - regmap_write(map, SUN8I_CSC_COEFF(base, i), data); - } + base_reg = SUN8I_CSC_COEFF(base, 0); + regmap_bulk_write(map, base_reg, table, 12); } static void sun8i_de3_ccsc_set_coefficients(struct regmap *map, int layer, -- 2.22.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/3] drm/sun4i: sun8i-csc: Add support for color encoding and range 2019-07-13 12:03 [PATCH 0/3] drm/sun4i: Add support for color encoding and range Jernej Skrabec 2019-07-13 12:03 ` [PATCH 1/3] drm/sun4i: Introduce color encoding and range properties Jernej Skrabec 2019-07-13 12:03 ` [PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes Jernej Skrabec @ 2019-07-13 12:03 ` Jernej Skrabec 2019-07-20 5:42 ` [PATCH 0/3] drm/sun4i: " Maxime Ripard 3 siblings, 0 replies; 6+ messages in thread From: Jernej Skrabec @ 2019-07-13 12:03 UTC (permalink / raw) To: maxime.ripard, wens Cc: airlied, linux-kernel, dri-devel, linux-sunxi, daniel, linux-arm-kernel Conversion from YUV to RGB depends on range (limited or full) and encoding (BT.601 or BT.709). Current code doesn't consider this and always uses BT.601 encoding and limited range. Fix this by introducing new CSC matrices, which are selected based on range and encoding parameters. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> --- drivers/gpu/drm/sun4i/sun8i_csc.c | 144 ++++++++++++++++++++----- drivers/gpu/drm/sun4i/sun8i_csc.h | 6 +- drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 4 +- 3 files changed, 126 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c b/drivers/gpu/drm/sun4i/sun8i_csc.c index e07b7876d89b..70c792d052fe 100644 --- a/drivers/gpu/drm/sun4i/sun8i_csc.c +++ b/drivers/gpu/drm/sun4i/sun8i_csc.c @@ -18,16 +18,59 @@ static const u32 ccsc_base[2][2] = { * First tree values in each line are multiplication factor and last * value is constant, which is added at the end. */ -static const u32 yuv2rgb[] = { - 0x000004A8, 0x00000000, 0x00000662, 0xFFFC845A, - 0x000004A8, 0xFFFFFE6F, 0xFFFFFCBF, 0x00021DF4, - 0x000004A8, 0x00000813, 0x00000000, 0xFFFBAC4A, + +static const u32 yuv2rgb[2][2][12] = { + [DRM_COLOR_YCBCR_LIMITED_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x000004A8, 0x00000000, 0x00000662, 0xFFFC8451, + 0x000004A8, 0xFFFFFE6F, 0xFFFFFCC0, 0x00021E4D, + 0x000004A8, 0x00000811, 0x00000000, 0xFFFBACA9, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x000004A8, 0x00000000, 0x0000072B, 0xFFFC1F99, + 0x000004A8, 0xFFFFFF26, 0xFFFFFDDF, 0x00013383, + 0x000004A8, 0x00000873, 0x00000000, 0xFFFB7BEF, + } + }, + [DRM_COLOR_YCBCR_FULL_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x00000400, 0x00000000, 0x0000059B, 0xFFFD322E, + 0x00000400, 0xFFFFFEA0, 0xFFFFFD25, 0x00021DD5, + 0x00000400, 0x00000716, 0x00000000, 0xFFFC74BD, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x00000400, 0x00000000, 0x0000064C, 0xFFFCD9B4, + 0x00000400, 0xFFFFFF41, 0xFFFFFE21, 0x00014F96, + 0x00000400, 0x0000076C, 0x00000000, 0xFFFC49EF, + } + }, }; -static const u32 yvu2rgb[] = { - 0x000004A8, 0x00000662, 0x00000000, 0xFFFC845A, - 0x000004A8, 0xFFFFFCBF, 0xFFFFFE6F, 0x00021DF4, - 0x000004A8, 0x00000000, 0x00000813, 0xFFFBAC4A, +static const u32 yvu2rgb[2][2][12] = { + [DRM_COLOR_YCBCR_LIMITED_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x000004A8, 0x00000662, 0x00000000, 0xFFFC8451, + 0x000004A8, 0xFFFFFCC0, 0xFFFFFE6F, 0x00021E4D, + 0x000004A8, 0x00000000, 0x00000811, 0xFFFBACA9, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x000004A8, 0x0000072B, 0x00000000, 0xFFFC1F99, + 0x000004A8, 0xFFFFFDDF, 0xFFFFFF26, 0x00013383, + 0x000004A8, 0x00000000, 0x00000873, 0xFFFB7BEF, + } + }, + [DRM_COLOR_YCBCR_FULL_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x00000400, 0x0000059B, 0x00000000, 0xFFFD322E, + 0x00000400, 0xFFFFFD25, 0xFFFFFEA0, 0x00021DD5, + 0x00000400, 0x00000000, 0x00000716, 0xFFFC74BD, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x00000400, 0x0000064C, 0x00000000, 0xFFFCD9B4, + 0x00000400, 0xFFFFFE21, 0xFFFFFF41, 0x00014F96, + 0x00000400, 0x00000000, 0x0000076C, 0xFFFC49EF, + } + }, }; /* @@ -53,30 +96,74 @@ static const u32 yvu2rgb[] = { * c20 c21 c22 [d2 const2] */ -static const u32 yuv2rgb_de3[] = { - 0x0002542a, 0x00000000, 0x0003312a, 0xffc00000, - 0x0002542a, 0xffff376b, 0xfffe5fc3, 0xfe000000, - 0x0002542a, 0x000408d3, 0x00000000, 0xfe000000, +static const u32 yuv2rgb_de3[2][2][12] = { + [DRM_COLOR_YCBCR_LIMITED_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x0002542A, 0x00000000, 0x0003312A, 0xFFC00000, + 0x0002542A, 0xFFFF376B, 0xFFFE5FC3, 0xFE000000, + 0x0002542A, 0x000408D2, 0x00000000, 0xFE000000, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x0002542A, 0x00000000, 0x000395E2, 0xFFC00000, + 0x0002542A, 0xFFFF92D2, 0xFFFEEF27, 0xFE000000, + 0x0002542A, 0x0004398C, 0x00000000, 0xFE000000, + } + }, + [DRM_COLOR_YCBCR_FULL_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x00020000, 0x00000000, 0x0002CDD2, 0x00000000, + 0x00020000, 0xFFFF4FCE, 0xFFFE925D, 0xFE000000, + 0x00020000, 0x00038B43, 0x00000000, 0xFE000000, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x00020000, 0x00000000, 0x0003264C, 0x00000000, + 0x00020000, 0xFFFFA018, 0xFFFF1053, 0xFE000000, + 0x00020000, 0x0003B611, 0x00000000, 0xFE000000, + } + }, }; -static const u32 yvu2rgb_de3[] = { - 0x0002542a, 0x0003312a, 0x00000000, 0xffc00000, - 0x0002542a, 0xfffe5fc3, 0xffff376b, 0xfe000000, - 0x0002542a, 0x00000000, 0x000408d3, 0xfe000000, +static const u32 yvu2rgb_de3[2][2][12] = { + [DRM_COLOR_YCBCR_LIMITED_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x0002542A, 0x0003312A, 0x00000000, 0xFFC00000, + 0x0002542A, 0xFFFE5FC3, 0xFFFF376B, 0xFE000000, + 0x0002542A, 0x00000000, 0x000408D2, 0xFE000000, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x0002542A, 0x000395E2, 0x00000000, 0xFFC00000, + 0x0002542A, 0xFFFEEF27, 0xFFFF92D2, 0xFE000000, + 0x0002542A, 0x00000000, 0x0004398C, 0xFE000000, + } + }, + [DRM_COLOR_YCBCR_FULL_RANGE] = { + [DRM_COLOR_YCBCR_BT601] = { + 0x00020000, 0x0002CDD2, 0x00000000, 0x00000000, + 0x00020000, 0xFFFE925D, 0xFFFF4FCE, 0xFE000000, + 0x00020000, 0x00000000, 0x00038B43, 0xFE000000, + }, + [DRM_COLOR_YCBCR_BT709] = { + 0x00020000, 0x0003264C, 0x00000000, 0x00000000, + 0x00020000, 0xFFFF1053, 0xFFFFA018, 0xFE000000, + 0x00020000, 0x00000000, 0x0003B611, 0xFE000000, + } + }, }; static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, - enum sun8i_csc_mode mode) + enum sun8i_csc_mode mode, + enum drm_color_encoding encoding, + enum drm_color_range range) { const u32 *table; u32 base_reg; switch (mode) { case SUN8I_CSC_MODE_YUV2RGB: - table = yuv2rgb; + table = yuv2rgb[range][encoding]; break; case SUN8I_CSC_MODE_YVU2RGB: - table = yvu2rgb; + table = yvu2rgb[range][encoding]; break; default: DRM_WARN("Wrong CSC mode specified.\n"); @@ -88,17 +175,19 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, } static void sun8i_de3_ccsc_set_coefficients(struct regmap *map, int layer, - enum sun8i_csc_mode mode) + enum sun8i_csc_mode mode, + enum drm_color_encoding encoding, + enum drm_color_range range) { const u32 *table; u32 base_reg; switch (mode) { case SUN8I_CSC_MODE_YUV2RGB: - table = yuv2rgb_de3; + table = yuv2rgb_de3[range][encoding]; break; case SUN8I_CSC_MODE_YVU2RGB: - table = yvu2rgb_de3; + table = yvu2rgb_de3[range][encoding]; break; default: DRM_WARN("Wrong CSC mode specified.\n"); @@ -137,19 +226,22 @@ static void sun8i_de3_ccsc_enable(struct regmap *map, int layer, bool enable) } void sun8i_csc_set_ccsc_coefficients(struct sun8i_mixer *mixer, int layer, - enum sun8i_csc_mode mode) + enum sun8i_csc_mode mode, + enum drm_color_encoding encoding, + enum drm_color_range range) { u32 base; if (mixer->cfg->is_de3) { - sun8i_de3_ccsc_set_coefficients(mixer->engine.regs, - layer, mode); + sun8i_de3_ccsc_set_coefficients(mixer->engine.regs, layer, + mode, encoding, range); return; } base = ccsc_base[mixer->cfg->ccsc][layer]; - sun8i_csc_set_coefficients(mixer->engine.regs, base, mode); + sun8i_csc_set_coefficients(mixer->engine.regs, base, + mode, encoding, range); } void sun8i_csc_enable_ccsc(struct sun8i_mixer *mixer, int layer, bool enable) diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.h b/drivers/gpu/drm/sun4i/sun8i_csc.h index dce4c444bcd6..f42441b1b14d 100644 --- a/drivers/gpu/drm/sun4i/sun8i_csc.h +++ b/drivers/gpu/drm/sun4i/sun8i_csc.h @@ -6,6 +6,8 @@ #ifndef _SUN8I_CSC_H_ #define _SUN8I_CSC_H_ +#include <drm/drm_color_mgmt.h> + struct sun8i_mixer; /* VI channel CSC units offsets */ @@ -26,7 +28,9 @@ enum sun8i_csc_mode { }; void sun8i_csc_set_ccsc_coefficients(struct sun8i_mixer *mixer, int layer, - enum sun8i_csc_mode mode); + enum sun8i_csc_mode mode, + enum drm_color_encoding encoding, + enum drm_color_range range); void sun8i_csc_enable_ccsc(struct sun8i_mixer *mixer, int layer, bool enable); #endif diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c index 240a800217df..011924a75263 100644 --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c @@ -232,7 +232,9 @@ static int sun8i_vi_layer_update_formats(struct sun8i_mixer *mixer, int channel, SUN8I_MIXER_CHAN_VI_LAYER_ATTR_FBFMT_MASK, val); if (fmt_info->csc != SUN8I_CSC_MODE_OFF) { - sun8i_csc_set_ccsc_coefficients(mixer, channel, fmt_info->csc); + sun8i_csc_set_ccsc_coefficients(mixer, channel, fmt_info->csc, + state->color_encoding, + state->color_range); sun8i_csc_enable_ccsc(mixer, channel, true); } else { sun8i_csc_enable_ccsc(mixer, channel, false); -- 2.22.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 0/3] drm/sun4i: Add support for color encoding and range 2019-07-13 12:03 [PATCH 0/3] drm/sun4i: Add support for color encoding and range Jernej Skrabec ` (2 preceding siblings ...) 2019-07-13 12:03 ` [PATCH 3/3] drm/sun4i: sun8i-csc: Add support for color encoding and range Jernej Skrabec @ 2019-07-20 5:42 ` Maxime Ripard 2019-07-20 16:03 ` Jernej Škrabec 3 siblings, 1 reply; 6+ messages in thread From: Maxime Ripard @ 2019-07-20 5:42 UTC (permalink / raw) To: Jernej Skrabec Cc: airlied, linux-sunxi, linux-kernel, dri-devel, wens, daniel, linux-arm-kernel [-- Attachment #1.1: Type: text/plain, Size: 697 bytes --] On Sat, Jul 13, 2019 at 02:03:43PM +0200, Jernej Skrabec wrote: > In order to correctly convert image between YUV and RGB, you have to > know color encoding and color range. This patch set adds appropriate > properties and considers them when choosing CSC conversion matrix for > DE2 and DE3. > > Note that this is only the half of needed changes when using HDMI output. > DW HDMI bridge driver has to be extended to have a property to select > limited (TVs) or full (PC monitors) range. But that will be done at a > later time. > > Please take a look. Sorry for the delay, I applied all three. Thanks! Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com [-- Attachment #1.2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] [-- Attachment #2: Type: text/plain, Size: 176 bytes --] _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 0/3] drm/sun4i: Add support for color encoding and range 2019-07-20 5:42 ` [PATCH 0/3] drm/sun4i: " Maxime Ripard @ 2019-07-20 16:03 ` Jernej Škrabec 0 siblings, 0 replies; 6+ messages in thread From: Jernej Škrabec @ 2019-07-20 16:03 UTC (permalink / raw) To: Maxime Ripard Cc: airlied, linux-sunxi, linux-kernel, dri-devel, wens, daniel, linux-arm-kernel Dne sobota, 20. julij 2019 ob 07:42:55 CEST je Maxime Ripard napisal(a): > On Sat, Jul 13, 2019 at 02:03:43PM +0200, Jernej Skrabec wrote: > > In order to correctly convert image between YUV and RGB, you have to > > know color encoding and color range. This patch set adds appropriate > > properties and considers them when choosing CSC conversion matrix for > > DE2 and DE3. > > > > Note that this is only the half of needed changes when using HDMI output. > > DW HDMI bridge driver has to be extended to have a property to select > > limited (TVs) or full (PC monitors) range. But that will be done at a > > later time. > > > > Please take a look. > > Sorry for the delay, I applied all three. No problem. Thanks! Best regards, Jernej _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-07-20 16:03 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-07-13 12:03 [PATCH 0/3] drm/sun4i: Add support for color encoding and range Jernej Skrabec 2019-07-13 12:03 ` [PATCH 1/3] drm/sun4i: Introduce color encoding and range properties Jernej Skrabec 2019-07-13 12:03 ` [PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes Jernej Skrabec 2019-07-13 12:03 ` [PATCH 3/3] drm/sun4i: sun8i-csc: Add support for color encoding and range Jernej Skrabec 2019-07-20 5:42 ` [PATCH 0/3] drm/sun4i: " Maxime Ripard 2019-07-20 16:03 ` Jernej Škrabec
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