linux-kernel - Re: [PATCH v2 00/26] arm64: allwinner: Add A64 DE2 HDMI support

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Message-ID: <20180518095913.nzl3sr5wn6cg4ra5@flea>
Date:   Fri, 18 May 2018 11:59:13 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 00/26] arm64: allwinner: Add A64 DE2 HDMI support

On Fri, May 18, 2018 at 03:15:10PM +0530, Jagan Teki wrote:
> Allwinner A64 has display engine pipeline like other Allwinner SOC's A83T/H3/H5.
> 
> A64 behaviour similar to Allwinner A83T where
> Mixer0 => TCON0 => LVDS/RGB/MIPI-DSI
> Mixer1 => TCON1 => HDMI
> as per Display System Block DiagramAllwinner_A64_User_Manual_V1.1.pdf
> 
> This is second patch-set followed with previous RFC[1] and first series[2]
> and merely concentrated on HDMI pipeline through TCON1 and rest will add eventually.
> 
> This series fixed previous version comments
> - about documenting fallback compatibles
> - adding new compatible for mixer1
> - support for multiple DW HDMI PHY clock parents (thanks, to Jernej)
> 
> Note:
> Pine64 boards are unable to get edid by default like other A64 boards,
> but forcing 'video=HDMI-A-1:1920x1080@...' kernel command line can
> create edid with display on penel.

There's no point in trying to push this without the SRAM issue being
solved. It is required, and won't be merged unless this is addressed.

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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