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From: Neil Armstrong <narmstrong@baylibre.com>
To: a.hajda@samsung.com, Laurent.pinchart@ideasonboard.com,
	p.zabel@pengutronix.de, Sandy Huang <hjc@rock-chips.com>,
	heiko@sntech.de, maxime.ripard@bootlin.com
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
	Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH v2 8/8] drm/meson: Output in YUV444 if sink supports it
Date: Fri,  1 Feb 2019 12:07:53 +0000	[thread overview]
Message-ID: <1549022873-40549-9-git-send-email-narmstrong@baylibre.com> (raw)
In-Reply-To: <1549022873-40549-1-git-send-email-narmstrong@baylibre.com>

With the YUV420 handling, we can dynamically setup the HDMI output
pixel format depending on the mode and connector info.
So now, we can output in YUV444, which is the native video pipeline
format, directly to the HDMI Sink if it's supported without
necessarily involving the HDMI Controller CSC.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 drivers/gpu/drm/meson/meson_dw_hdmi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index 540971a..69f9b2a 100644
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -664,7 +664,10 @@ static int meson_venc_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
 		dw_hdmi->output_bus_format = MEDIA_BUS_FMT_UYYVYY8_0_5X24;
 	} else {
 		dw_hdmi->input_bus_format = MEDIA_BUS_FMT_YUV8_1X24;
-		dw_hdmi->output_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+		if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
+			dw_hdmi->output_bus_format = MEDIA_BUS_FMT_YUV8_1X24;
+		else
+			dw_hdmi->output_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
 	}
 
 	return 0;
-- 
2.7.4


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      parent reply	other threads:[~2019-02-01 12:08 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-01 12:07 [PATCH v2 0/8] drm/meson: Add support for HDMI2.0 4k60 Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 1/8] drm/bridge: dw-hdmi: Add SCDC and TMDS Scrambling support Neil Armstrong
2019-03-07 23:13   ` Rob Herring
2019-03-08  8:05     ` Neil Armstrong
2019-03-08 14:54       ` Rob Herring
2019-03-11  8:53         ` Neil Armstrong
2019-03-14 18:55           ` Rob Herring
2019-03-14 20:07             ` Neil Armstrong
2019-03-14 20:14               ` Rob Herring
2019-03-15  7:47                 ` Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 2/8] drm/meson: add HDMI div40 TMDS mode Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 3/8] drm/meson: add support for HDMI2.0 2160p modes Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 4/8] drm/bridge: dw-hdmi: add support for YUV420 output Neil Armstrong
2019-02-01 12:48   ` Andrzej Hajda
2019-02-01 12:07 ` [PATCH v2 5/8] drm/bridge: dw-hdmi: support dynamically get input/out color info Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 6/8] drm/bridge: dw-hdmi: allow ycbcr420 modes for >= 0x200a Neil Armstrong
2019-02-01 12:07 ` [PATCH v2 7/8] drm/meson: Add YUV420 output support Neil Armstrong
2019-03-19 10:35   ` Maxime Jourdan
2019-03-19 10:38     ` Neil Armstrong
2019-02-01 12:07 ` Neil Armstrong [this message]

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