linux-kernel - [RFC PATCH 2/3] drm: bridge/dw_hdmi_rockchip: improve hdmi eye-diagram test

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Message-Id: <1423577902-19357-1-git-send-email-ykk@rock-chips.com>
Date:	Tue, 10 Feb 2015 22:18:22 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	David Airlie <airlied@...ux.ie>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc:	Fabio Estevam <fabio.estevam@...escale.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Rob Clark <robdclark@...il.com>,
	Mark Yao <mark.yao@...k-chips.com>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>, Sean Cross <xobs@...agi.com>,
	Jyri Sarha <jsarha@...com>, Ben Zhang <benzh@...omium.org>,
	alsa-devel@...a-project.org, Heiko Stuebner <heiko@...ech.de>,
	linux-arm-kernel@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	djkurtz@...omium.org, mmind00@...glemail.com,
	dianders@...omium.org, marcheu@...omium.org,
	linux-rockchip@...ts.infradead.org, Yakir Yang <ykk@...k-chips.com>
Subject: [RFC PATCH 2/3] drm: bridge/dw_hdmi_rockchip: improve hdmi eye-diagram test

As for 1920x1080 display resolution, we should turn on the Transmitter
Trailer-B, and adjust slopeboost to 25%-35% decrease.

Signed-off-by: Yakir Yang <ykk@...k-chips.com>
---

 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index e46e1d9..51030ca 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -142,7 +142,7 @@ static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
 static const struct dw_hdmi_sym_term rockchip_sym_term[] = {
 	/*pixelclk   symbol   term*/
 	{ 74250000,  0x8009, 0x0004 },
-	{ 148500000, 0x8029, 0x0004 },
+	{ 148500000, 0x803b, 0x0004 },
 	{ 297000000, 0x8039, 0x0005 },
 	{ ~0UL,	     0x0000, 0x0000 }
 };
-- 
1.7.9.5


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