From: Ilia Mirkin <imirkin@alum.mit.edu>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: jernej.skrabec@siol.net, maxime.ripard@bootlin.com,
Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>,
sboyd@kernel.org, David Airlie <airlied@linux.ie>,
Archit Taneja <architt@codeaurora.org>,
Andrzej Hajda <a.hajda@samsung.com>,
devicetree <devicetree@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org,
LKML <linux-kernel@vger.kernel.org>,
linux-clk@vger.kernel.org,
dri-devel <dri-devel@lists.freedesktop.org>,
linux-sunxi@googlegroups.com
Subject: Re: [PATCH v2 15/29] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a
Date: Tue, 9 Oct 2018 13:56:04 -0400 [thread overview]
Message-ID: <CAKb7Uvgmv4-t0g=b-Xsimn9AiRL1L4sQ51vu5xMTFKNdDC9bLw@mail.gmail.com> (raw)
In-Reply-To: <3616158.EzHeIcd69b@avalon>
On Tue, Oct 9, 2018 at 1:40 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Jernej,
>
> Thank you for the patch.
>
> On Sunday, 7 October 2018 12:38:51 EEST Jernej Skrabec wrote:
> > It turns out that even new DW HDMI controllers exhibits same magenta
> > line issues as older versions.
> >
> > Enable workaround for v2.12a.
>
> This doesn't affect the platforms I maintain, so I can't really test this, but
> I'm wondering whether there could be other platforms using a v2.12a DW HDMI
> that wouldn't need the workaround.
>
> My platforms use a previous version, namely v2.01a. The workaround for that
> version has been enabled by
>
> commit 9c305eb442f3b371fc722ade827bbf673514123e
> Author: Neil Armstrong <narmstrong@baylibre.com>
> Date: Fri Feb 23 12:44:37 2018 +0100
>
> drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs
>
> I haven't paid too much attention to the patch back then, and have now double-
> checked the HDMI output on R-Car Gen3. Enabling the workaround doesn't cause
> any regression, and reverting the commit doesn't cause any issue either. I
> thus wonder whether we shouldn't enable the workaround with count = 1 in the
> default case instead of adding new IP core versions to the list. It would be
> nice if someone from Synopsys could comment on this.
I hope this comment isn't *incredibly* off-topic, but we encountered a
similar issue with NVIDIA (and I believe AMD) hardware a while back,
related to HDMI. This was due to infoframes not being sent, but
(perhaps) HDMI Audio being enabled.
This was a single vertical(!) line. It was described as "purple", but
not sure that's distinguishable from "magenta" by most people. [ Fixed
by a522946174 on nouveau, sample bug report
https://bugs.freedesktop.org/show_bug.cgi?id=79912 ]
Cheers,
-ilia
WARNING: multiple messages have this Message-ID (diff)
From: Ilia Mirkin <imirkin@alum.mit.edu>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: devicetree <devicetree@vger.kernel.org>,
jernej.skrabec@siol.net, maxime.ripard@bootlin.com,
David Airlie <airlied@linux.ie>,
linux-sunxi@googlegroups.com,
dri-devel <dri-devel@lists.freedesktop.org>,
LKML <linux-kernel@vger.kernel.org>,
sboyd@kernel.org, Chen-Yu Tsai <wens@csie.org>,
Rob Herring <robh+dt@kernel.org>,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 15/29] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a
Date: Tue, 9 Oct 2018 13:56:04 -0400 [thread overview]
Message-ID: <CAKb7Uvgmv4-t0g=b-Xsimn9AiRL1L4sQ51vu5xMTFKNdDC9bLw@mail.gmail.com> (raw)
In-Reply-To: <3616158.EzHeIcd69b@avalon>
On Tue, Oct 9, 2018 at 1:40 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Jernej,
>
> Thank you for the patch.
>
> On Sunday, 7 October 2018 12:38:51 EEST Jernej Skrabec wrote:
> > It turns out that even new DW HDMI controllers exhibits same magenta
> > line issues as older versions.
> >
> > Enable workaround for v2.12a.
>
> This doesn't affect the platforms I maintain, so I can't really test this, but
> I'm wondering whether there could be other platforms using a v2.12a DW HDMI
> that wouldn't need the workaround.
>
> My platforms use a previous version, namely v2.01a. The workaround for that
> version has been enabled by
>
> commit 9c305eb442f3b371fc722ade827bbf673514123e
> Author: Neil Armstrong <narmstrong@baylibre.com>
> Date: Fri Feb 23 12:44:37 2018 +0100
>
> drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs
>
> I haven't paid too much attention to the patch back then, and have now double-
> checked the HDMI output on R-Car Gen3. Enabling the workaround doesn't cause
> any regression, and reverting the commit doesn't cause any issue either. I
> thus wonder whether we shouldn't enable the workaround with count = 1 in the
> default case instead of adding new IP core versions to the list. It would be
> nice if someone from Synopsys could comment on this.
I hope this comment isn't *incredibly* off-topic, but we encountered a
similar issue with NVIDIA (and I believe AMD) hardware a while back,
related to HDMI. This was due to infoframes not being sent, but
(perhaps) HDMI Audio being enabled.
This was a single vertical(!) line. It was described as "purple", but
not sure that's distinguishable from "magenta" by most people. [ Fixed
by a522946174 on nouveau, sample bug report
https://bugs.freedesktop.org/show_bug.cgi?id=79912 ]
Cheers,
-ilia
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: imirkin@alum.mit.edu (Ilia Mirkin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 15/29] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a
Date: Tue, 9 Oct 2018 13:56:04 -0400 [thread overview]
Message-ID: <CAKb7Uvgmv4-t0g=b-Xsimn9AiRL1L4sQ51vu5xMTFKNdDC9bLw@mail.gmail.com> (raw)
In-Reply-To: <3616158.EzHeIcd69b@avalon>
On Tue, Oct 9, 2018 at 1:40 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Jernej,
>
> Thank you for the patch.
>
> On Sunday, 7 October 2018 12:38:51 EEST Jernej Skrabec wrote:
> > It turns out that even new DW HDMI controllers exhibits same magenta
> > line issues as older versions.
> >
> > Enable workaround for v2.12a.
>
> This doesn't affect the platforms I maintain, so I can't really test this, but
> I'm wondering whether there could be other platforms using a v2.12a DW HDMI
> that wouldn't need the workaround.
>
> My platforms use a previous version, namely v2.01a. The workaround for that
> version has been enabled by
>
> commit 9c305eb442f3b371fc722ade827bbf673514123e
> Author: Neil Armstrong <narmstrong@baylibre.com>
> Date: Fri Feb 23 12:44:37 2018 +0100
>
> drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs
>
> I haven't paid too much attention to the patch back then, and have now double-
> checked the HDMI output on R-Car Gen3. Enabling the workaround doesn't cause
> any regression, and reverting the commit doesn't cause any issue either. I
> thus wonder whether we shouldn't enable the workaround with count = 1 in the
> default case instead of adding new IP core versions to the list. It would be
> nice if someone from Synopsys could comment on this.
I hope this comment isn't *incredibly* off-topic, but we encountered a
similar issue with NVIDIA (and I believe AMD) hardware a while back,
related to HDMI. This was due to infoframes not being sent, but
(perhaps) HDMI Audio being enabled.
This was a single vertical(!) line. It was described as "purple", but
not sure that's distinguishable from "magenta" by most people. [ Fixed
by a522946174 on nouveau, sample bug report
https://bugs.freedesktop.org/show_bug.cgi?id=79912 ]
Cheers,
-ilia
next prev parent reply other threads:[~2018-10-09 17:56 UTC|newest]
Thread overview: 155+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-07 9:38 [PATCH v2 00/29] Allwinner H6 DE3 and HDMI support Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 01/29] dt-bindings: bus: add H6 DE3 bus binding Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-08 8:31 ` Maxime Ripard
2018-10-08 8:31 ` Maxime Ripard
2018-10-08 8:31 ` Maxime Ripard
2018-10-08 14:25 ` Jernej Škrabec
2018-10-08 14:25 ` Jernej Škrabec
2018-10-08 14:25 ` Jernej Škrabec
2018-10-07 9:38 ` [PATCH v2 02/29] clk: sunxi-ng: Adjust MP clock parent rate when allowed Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 03/29] clk: sunxi-ng: Use u64 for calculation of NM rate Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 04/29] clk: sunxi-ng: h6: Set video PLLs limits Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-12 8:13 ` [linux-sunxi] " Jagan Teki
2018-10-12 8:13 ` Jagan Teki
2018-10-12 8:13 ` Jagan Teki
2018-10-12 9:03 ` [linux-sunxi] " Chen-Yu Tsai
2018-10-12 9:03 ` Chen-Yu Tsai
2018-10-12 9:03 ` Chen-Yu Tsai
2018-10-07 9:38 ` [PATCH v2 05/29] dt-bindings: clock: sun8i-de2: Add H6 DE3 clock description Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 06/29] clk: sunxi-ng: Add support for H6 DE3 clocks Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 07/29] dt-bindings: display: sun4i-drm: Add H6 display engine compatibles Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 08/29] drm/sun4i: Add compatible for H6 display engine Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 09/29] drm/sun4i: Rework DE2 register defines Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 10/29] drm/sun4i: Rename DE2 registers related macros Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-08 10:18 ` Maxime Ripard
2018-10-08 10:18 ` Maxime Ripard
2018-10-08 10:18 ` Maxime Ripard
2018-10-08 14:28 ` Jernej Škrabec
2018-10-08 14:28 ` Jernej Škrabec
2018-10-08 14:28 ` Jernej Škrabec
2018-10-09 15:53 ` Maxime Ripard
2018-10-09 15:53 ` Maxime Ripard
2018-10-09 15:53 ` Maxime Ripard
2018-10-07 9:38 ` [PATCH v2 11/29] drm/sun4i: Fix DE2 mixer size Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 12/29] drm/sun4i: Disable unused DE2 sub-engines Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 13/29] drm/sun4i: Add basic support for DE3 Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 14/29] drm/sun4i: Add support for H6 DE3 mixer 0 Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 15/29] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-09 17:40 ` Laurent Pinchart
2018-10-09 17:40 ` Laurent Pinchart
2018-10-09 17:40 ` Laurent Pinchart
2018-10-09 17:56 ` Ilia Mirkin [this message]
2018-10-09 17:56 ` Ilia Mirkin
2018-10-09 17:56 ` Ilia Mirkin
2018-10-09 21:23 ` Russell King - ARM Linux
2018-10-09 21:23 ` Russell King - ARM Linux
2018-10-15 17:43 ` [linux-sunxi] " Jernej Škrabec
2018-10-15 17:43 ` Jernej Škrabec
2018-10-15 17:43 ` Jernej Škrabec
2018-10-07 9:38 ` [PATCH v2 16/29] drm/sun4i: Not all DW HDMI controllers has scrambled addresses Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 17/29] drm/sun4i: dw-hdmi: Make mode_valid function configurable Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 18/29] drm/sun4i: dw-hdmi: Add quirk for setting TMDS clock Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-08 9:14 ` Maxime Ripard
2018-10-08 9:14 ` Maxime Ripard
2018-10-08 9:14 ` Maxime Ripard
2018-10-08 15:09 ` Jernej Škrabec
2018-10-08 15:09 ` Jernej Škrabec
2018-10-08 15:09 ` Jernej Škrabec
2018-10-09 9:14 ` Maxime Ripard
2018-10-09 9:14 ` Maxime Ripard
2018-10-09 9:14 ` Maxime Ripard
2018-10-07 9:38 ` [PATCH v2 19/29] dt-bindings: display: sunxi: add DT binding for Allwinner H6 DW HDMI Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 20/29] drm/sun4i: Add support for H6 DW HDMI controller Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 21/29] drm/sun4i: dw-hdmi-phy: Reorder quirks by family Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 22/29] drm/sun4i: Add support for Synopsys HDMI PHY Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 23/29] drm/sun4i: Add support for H6 " Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:38 ` Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 24/29] drm/sun4i: Initialize registers in tcon-top driver Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 25/29] drm: sun4i: add quirks for TCON TOP Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-08 8:51 ` Maxime Ripard
2018-10-08 8:51 ` Maxime Ripard
2018-10-08 8:51 ` Maxime Ripard
2018-10-08 9:06 ` Chen-Yu Tsai
2018-10-08 9:06 ` Chen-Yu Tsai
2018-10-08 9:06 ` Chen-Yu Tsai
2018-10-08 10:20 ` Maxime Ripard
2018-10-08 10:20 ` Maxime Ripard
2018-10-08 10:20 ` Maxime Ripard
2018-10-08 10:50 ` Chen-Yu Tsai
2018-10-08 10:50 ` Chen-Yu Tsai
2018-10-08 10:50 ` Chen-Yu Tsai
2018-10-08 12:33 ` Maxime Ripard
2018-10-08 12:33 ` Maxime Ripard
2018-10-08 12:33 ` Maxime Ripard
2018-10-08 13:10 ` Chen-Yu Tsai
2018-10-08 13:10 ` Chen-Yu Tsai
2018-10-08 13:10 ` Chen-Yu Tsai
2018-10-08 14:30 ` Jernej Škrabec
2018-10-08 14:30 ` Jernej Škrabec
2018-10-08 14:30 ` Jernej Škrabec
2018-10-07 9:39 ` [PATCH v2 26/29] dt-bindings: display: sun4i-drm: document H6 " Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 27/29] drm: sun4i: add support for " Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 28/29] arm64: dts: allwinner: h6: Add HDMI pipeline Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 29/29] arm64: dts: allwinner: h6: Enable HDMI output on Pine H64 board Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:39 ` Jernej Skrabec
2018-10-07 9:50 ` [linux-sunxi] [PATCH v2 00/29] Allwinner H6 DE3 and HDMI support Jernej Škrabec
2018-10-07 9:50 ` Jernej Škrabec
2018-10-07 9:50 ` Jernej Škrabec
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