linux-kernel - Re: [linux-sunxi] [PATCH v2 00/27] Add support for R40 HDMI pipeline

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Message-ID: <CAMty3ZBt33q9HWm7n3SrON_Y51g+bsQNfoHajCCVzuKZLGHkjw@mail.gmail.com>
Date:   Thu, 14 Jun 2018 22:46:46 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Jernej Škrabec <jernej.skrabec@...l.net>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        David Airlie <airlied@...ux.ie>, gustavo@...ovan.org,
        maarten.lankhorst@...ux.intel.com, seanpaul@...omium.org,
        Mark Rutland <mark.rutland@....com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] [PATCH v2 00/27] Add support for R40 HDMI pipeline

On Thu, Jun 14, 2018 at 8:04 PM, Jernej Škrabec <jernej.skrabec@...l.net> wrote:
> Dne četrtek, 14. junij 2018 ob 09:12:41 CEST je Jagan Teki napisal(a):
>> On Wed, Jun 13, 2018 at 1:30 AM, Jernej Skrabec <jernej.skrabec@...l.net>
> wrote:
>> > This series adds support for R40 HDMI pipeline. It is a bit special
>> > than other already supported pipelines because it has additional unit
>> > called TCON TOP responsible for relationship configuration between
>> > mixers, TCONs and HDMI. Additionally, it has additional gates for DSI
>> > and TV TCONs, TV encoder clock settings and pin muxing between LCD
>> > and TV encoders.
>> >
>> > However, it seems that TCON TOP will become a norm, since newer
>> > Allwinner SoCs like H6 also have this unit.
>> >
>> > I tested different possible configurations:
>> > - mixer0 <> TCON-TV0 <> HDMI
>> > - mixer0 <> TCON-TV1 <> HDMI
>> > - mixer1 <> TCON-TV0 <> HDMI
>> > - mixer1 <> TCON-TV1 <> HDMI
>> >
>> > Please review.
>> >
>> > Best regards,
>> > Jernej
>> >
>> > Changes from v1:
>> > - Split DT bindings patch and updated description
>> > - Split HDMI PHY patch
>> > - Move header file from TCON TOP patch to dt bindings patch
>> > - Added Rob reviewed-by tag
>> > - Used clk_hw_register_gate() instead of custom gate registration code
>> > - Reworked TCON TOP to be part of of-graph. Because of that, a lot of
>> >
>> >   new patches were added.
>> >
>> > - Droped mixer index quirk patch
>> > - Reworked TCON support for TCON TOP
>> > - Updated commit messages
>> >
>> > Jernej Skrabec (27):
>> >   clk: sunxi-ng: r40: Add minimal rate for video PLLs
>> >   clk: sunxi-ng: r40: Allow setting parent rate to display related
>> >
>> >     clocks
>> >
>> >   clk: sunxi-ng: r40: Export video PLLs
>> >   dt-bindings: display: sunxi-drm: Add TCON TOP description
>> >   drm/sun4i: Add TCON TOP driver
>> >   drm/sun4i: Fix releasing node when enumerating enpoints
>> >   drm/sun4i: Split out code for enumerating endpoints in output port
>> >   drm/sun4i: Add support for traversing graph with TCON TOP
>> >   drm/sun4i: Don't skip TCONs if they don't have channel 0
>> >   dt-bindings: display: sun4i-drm: Add R40 TV TCON description
>> >   drm/sun4i: tcon: Add support for tcon-top gate
>> >   drm/sun4i: tcon: Generalize engine search algorithm
>> >   drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1
>> >   drm/sun4i: Don't check for panel or bridge on TV TCONs
>> >   drm/sun4i: Add support for R40 TV TCON
>> >   dt-bindings: display: sun4i-drm: Add R40 mixer compatibles
>> >   drm/sun4i: Add support for R40 mixers
>> >   dt-bindings: display: sun4i-drm: Add description of A64 HDMI PHY
>> >   drm/sun4i: Enable DW HDMI PHY clock
>> >   drm/sun4i: Don't change clock bits in DW HDMI PHY driver
>> >   drm/sun4i: DW HDMI PHY: Add support for second PLL
>> >   drm/sun4i: Add support for second clock parent to DW HDMI PHY clk
>> >
>> >     driver
>> >
>> >   drm/sun4i: Add support for A64 HDMI PHY
>> >   drm: of: Export drm_crtc_port_mask()
>> >   drm/sun4i: DW HDMI: Expand algorithm for possible crtcs
>> >   ARM: dts: sun8i: r40: Add HDMI pipeline
>> >   ARM: dts: sun8i: r40: Enable HDMI output on BananaPi M2 Ultra
>>
>> Tested whole series on top of linux-next.
>>
>> Tested-by: Jagan Teki <jagan@...rulasolutions.com>
>
> Thanks!

I've V40 board, which is same as R40. I'm able to detect the HDMI but
seems edid not detecting properly.

[    0.983007] sun4i-drm display-engine: bound 1100000.mixer (ops 0xc074a80c)
[    0.999043] sun4i-drm display-engine: bound 1200000.mixer (ops 0xc074a80c)
[    1.006229] sun4i-drm display-engine: bound 1c70000.tcon-top (ops 0xc074e2ac)
[    1.013609] sun4i-drm display-engine: bound 1c73000.lcd-controller
(ops 0xc0747a28)
[    1.053988] sun8i-dw-hdmi 1ee0000.hdmi: Detected HDMI TX controller
v1.32a with HDCP (sun8i_dw_hdmi_phy)
[    1.063913] sun8i-dw-hdmi 1ee0000.hdmi: registered DesignWare HDMI
I2C bus driver
[    1.071683] sun4i-drm display-engine: bound 1ee0000.hdmi (ops 0xc074a298)
[    1.078484] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.085098] [drm] No driver support for vblank timestamp query.
[    1.091055] [drm] Cannot find any crtc or sizes
[    1.095995] [drm] Initialized sun4i-drm 1.0.0 20150629 for
display-engine on minor 0