From: Yakir Yang <ykk@rock-chips.com>
To: Mark Yao <mark.yao@rock-chips.com>,
Heiko Stuebner <heiko@sntech.de>,
Rob Herring <robh+dt@kernel.org>,
Russell King <rmk+kernel@arm.linux.org.uk>,
Philipp Zabel <p.zabel@pengutronix.de>,
Andy Yan <andy.yan@rock-chips.com>
Cc: devicetree@vger.kernel.org,
Daniel Vetter <daniel.vetter@ffwll.ch>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Douglas Anderson <dianders@chromium.org>,
linux-rockchip@lists.infradead.org,
Kumar Gala <galak@codeaurora.org>,
xhc@rock-chips.com, linux-arm-kernel@lists.infradead.org,
Zheng Yang <zhengyang@rock-chips.com>
Subject: [PATCH v1 1/6] drm/rockchip: dw_hdmi: Set cur_ctr to 0 always
Date: Mon, 11 Jul 2016 19:05:36 +0800 [thread overview]
Message-ID: <1468235136-29417-1-git-send-email-ykk@rock-chips.com> (raw)
In-Reply-To: <1468235079-29152-1-git-send-email-ykk@rock-chips.com>
From: Douglas Anderson <dianders@chromium.org>
Jitter was improved by lowering the MPLL bandwidth to account for high
frequency noise in the rk3288 PLL. In each case MPLL bandwidth was
lowered only enough to get us a comfortable margin. We believe that
lowering the bandwidth like this is safe given sufficient testing.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 801110f..a621118 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -115,20 +115,8 @@ static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
/* pixelclk bpp8 bpp10 bpp12 */
{
- 40000000, { 0x0018, 0x0018, 0x0018 },
- }, {
- 65000000, { 0x0028, 0x0028, 0x0028 },
- }, {
- 66000000, { 0x0038, 0x0038, 0x0038 },
- }, {
- 74250000, { 0x0028, 0x0038, 0x0038 },
- }, {
- 83500000, { 0x0028, 0x0038, 0x0038 },
- }, {
- 146250000, { 0x0038, 0x0038, 0x0038 },
- }, {
- 148500000, { 0x0000, 0x0038, 0x0038 },
- }, {
+ 600000000, { 0x0000, 0x0000, 0x0000 },
+ }, {
~0UL, { 0x0000, 0x0000, 0x0000},
}
};
--
1.9.1
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next prev parent reply other threads:[~2016-07-11 11:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-11 11:04 [PATCH v1 0/6] Add RK3399 HDMI Support Yakir Yang
2016-07-11 11:05 ` Yakir Yang [this message]
2016-07-11 11:05 ` [PATCH v1 2/6] drm/rockchip: dw_hdmi: adjust cklvl & txlvl for RF/EMI Yakir Yang
2016-07-11 11:05 ` [PATCH v1 3/6] drm/rockchip: dw_hdmi: Use auto-generated tables Yakir Yang
2016-07-11 11:05 ` [PATCH v1 4/6] drm/rockchip: dw_hdmi: add RK3399 HDMI support Yakir Yang
[not found] ` <1468235146-29575-1-git-send-email-ykk-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-07-11 11:51 ` Philipp Zabel
2016-07-13 7:30 ` Yakir Yang
2016-07-16 13:47 ` Rob Herring
2016-07-11 11:05 ` [PATCH v1 5/6] drm/rockchip: dw_hdmi: introduce the VPLL clock setting Yakir Yang
2016-07-12 14:27 ` Heiko Stübner
2016-07-13 7:45 ` Yakir Yang
2016-07-11 11:05 ` [PATCH v1 6/6] drm/rockchip: dw_hdmi: introduce the pclk for grf Yakir Yang
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